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Achieva Technical Manual

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Achieva®, Nellcor Puritan Bennett®, and Puritan-Bennett® are registered trademarks of Nellcor Puritan Bennett Incorporated.

For further information, contact your Puritan-Bennett representative, or contact Nellcor Puritan Bennett directly by calling 1.800-NELLCOR

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Achieva Ventilator Technical Manual

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Chapters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Warranty considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Tools and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Features of Achieva Ventilators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4Front view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5Top panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6Display and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8Back and sides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14Breath types and ventilation modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16Volume breaths in assist/control mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16Continuous Positive Airway Pressure (CPAP). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30Standard compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37FCC Part 68 information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37

Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Ventilation equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2Calibration of test equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

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Qualifications of test personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3Standard ventilation parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4Visual inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5Pneumatic test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6Power system checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9Assist/control ventilation mode checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11SIMV ventilation mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14Pressure-controlled ventilation mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16Pressure support mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17Achieva ventilator operational checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Theory of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Pneumatic system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3System control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Micro-controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5System memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5Real-time clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5Motor drive control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6System analog monitoring circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6System analog control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Watchdog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7Digital inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8Digital outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8Micro-controller I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9System power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9Power system control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Cleaning ventilator surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Replaceable parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3Flatpak filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4Changing the fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5Periodic maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

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Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1Service information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1Limited warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Appendix: Oxygen Adapter Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1Canadian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1Dräger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2Australian . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3NIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4UK. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5French. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1

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Figures

Schematics

DrawingsFigure 2-1: Front view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5Figure 2-2: Top panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6Figure 2-3: Display and controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8Figure 2-4: Rear and side view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14Figure 2-5: Volume Breaths in Assit/Control Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17Figure 2-6: Controlled (machine) Breath Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19Figure 2-7: Pressure Control in Assist/Control Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21Figure 2-8: Mandatory Volume Breaths in SIMV Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23Figure 2-9: Spontaneous Breaths Assisted with Pressure-supported Breaths. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25Figure 2-10: Supported Breaths Maintain Selected Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27Figure 2-11: Continuous Positive Airway Pressure (CPAP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29Figure 3-1: Front panel view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6Figure 3-2: Blocking exhalation manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7Figure 4-1: Pneumatic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Figure 4-2: Block diagram of control system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4Figure 4-3: Power supply inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10Figure 5-1: Replacing Flatpak filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4Figure 5-2: Removing fuse holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6Figure 5-3: Replacing fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7Schematic 6-1: Logic board—notes for schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2Schematic 6-2: Logic board—microprocessors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3Schematic 6-3: Logic board—memory/address select . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-4Schematic 6-4: Logic board—switch inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5Schematic 6-5: Logic board—LED indicators/controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6Schematic 6-6: Logic board—miscellaneous digital I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7Schematic 6-7: Logic board—alarm and monitor circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-8Schematic 6-8: Logic board——communications driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9Schematic 6-9: Logic board—pressure sensor circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10Schematic 6-10: Logic board—flow sensor circuits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11Schematic 6-11: Logic board—primary ADC circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-12Schematic 6-12: Logic board—serial ADC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13Schematic 6-13: Logic board—serial ADC circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14Schematic 6-14: Logic board—DAC circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15Schematic 6-15: Logic board—connectors and EMI filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16

v


Schematic 6-16: Logic board—connectors and modem port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-17Schematic 6-17: Power board schematic notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-18Schematic 6-18: Power board—motor drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19Schematic 6-19: Power board—power On/Off circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-20Schematic 6-20: Power board—switching power supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21Schematic 6-21: Power board—system power entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-22Schematic 6-22: Miscellaneous Circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-23Schematic 6-23: Power board—connectors and EMI filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-24Drawing 6-1: Ventilator assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25Drawing 6-2: Ventilator assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-26Drawing 6-3: Rear panel assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27Drawing 6-4: Right end assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-28Drawing 6-5: Right end assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29Drawing 6-6: Front panel assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-30Drawing 6-7: Piston assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31Drawing 6-8: Manifold assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-32Drawing 6-9: Power supply assembly drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-33

vi


Tables

Table 1-1: Recommended Equipment and Suppliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Table 3-1: Equipment and Recommended Supplier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Table 3-2: Standard Ventilation Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Table 3-3: Power system checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

Table 3-4: Assist/Control ventilation mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Table 3-5: SIMV mode checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14

Table 3-6: Pressure-controlled mode checkout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Table 3-7: Pressure support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Table 4-1: Power sources and priority levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10

1-1


Chapter 1: Introduction

This technical manual provides procedures for testing and maintaining the Achieva model volume ventilators. It is not intended to be a complete maintenance document; therefore, it contains no disassembly, repair, or reassembly instructions.

Refer any repairs or adjustments that exceed the scope of this manual to a Puritan BennettTechnical Support Representative by calling:

800.255.6774

This manual contains proprietary information. It is intended for use only by individualsqualified in the installation and maintenance of the Achieva ventilators. Receipt, purchase, orpossession of this document in no way confers or transfers any other rights for the use of thisinformation. Disclosure or reproduction of the enclosed, without the written permission ofPuritan Bennett, is prohibited.

This manual is intended for use only by technicians who have successfully completed PuritanBennett training on this product.

Puritan Bennett believes the information herein is accurate but accepts no responsibility forerrors, omissions, or misrepresentation.

PURITAN-BENNETT CORPORATION FURTHER DECLINES ANY WARRANTIES,EXPRESSED OR IMPLIED, FOR THE REPAIRED PRODUCT, INCLUDING ANYWARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULARPURPOSE.

It is the user’s responsibility to ensure that the product has been properly repaired and that it isin safe and proper operating condition before it is put into use.

1-2

Introduction


Chapters

This manual consists of the following sections:

1 Introductio: Discusses the purpose of the manual, gives an overview of the contents of thevarious chapters, and describes the conventions used for warnings, cautions, and notes.

2 Description: Provides a description of the systems, features, controls, and labels on theAchieva ventilators. Also included is a description of the ventilation modes and a table oftechnical specifications.

3 Testing: Provides procedures for verifying the correct operation of the ventilator.

4 Theory of operation: Provides a description of the systems and principles that make theventilator operate.

5 Maintenance: Provides cleaning and maintenance information, a list of user-replaceableparts, and a maintenance schedule.

6 Schematics: Provides electrical schematic diagrams of the ventilator’s circuitry. Providesexploded views of the ventilator and lists of its components.

7 Service: Provides service and limited warranty information.

Appendix: Information regarding the oxygen adapter assembly.

Index: An alphabetical list of topics, and their locations, in this manual.

1-3

Introduction


Conventions

Throughout this manual, Warnings, Cautions, and Notes mean the following:

WarningIndicates a condition that can place the patient, caregiver, or otherindividuals at risk of injury.

CautionIndicates a condition that can damage the equipment.

NoteIndicates points of particular emphasis that make the operation of the ventilator more efficientor convenient.

Warranty considerations

Do not make any service repairs on this equipment during the stated warranty period. Anyunauthorized work immediately voids the warranty. Puritan Bennett will not be liable for anyrepairs attempted by the owner. Any such attempted repairs other than specified non-warrantyrepairs void the warranty.

1-4

Introduction


Tools and equipment

The following tools and equipment will be needed for the tasks listed.

Table 1-1: Recommended Equipment and Suppliers

Task Equipment Recommended Supplier

Monthly verification Achieva Ventilator Opera-tional Checklist

Photocopy last page of Chap-ter 3

Ventilation mode checkout Respirometer (hand-held) Wright

Fraser-Harlake

Ferrairs Medical

Stop Watch Any

Changing fuses Small slotted screwdriver Any

Fuses Any 5 x 20 mm, 250V, 3.15A slow blow

Power switchover test External battery and cable Puritan Bennett

Cleaning Mild detergent Any

2-1


Chapter 2: Description

This chapter describes the systems, features, controls, and labels on the Achieva ventilators. Also included is a description of the ventilation modes and a table of technical specifications.

Overview

Indications for Use

The Achieva Ventilator is intended to provide ventilatory support for pediatric and adultpatients who require positive pressure mechanical ventilation. Patients should weigh no lessthan 11 pounds (5 kg). The ventilator is for use in home, institutional, and non-emergencytransport settings.

Contra-Indications

Achieva ventilators are not intended for the delivery of anesthetic gases.

CautionDo not use or store in the presence of strong electromagnetic fields such as thosesurrounding MRI equipment.

General description

The Achieva Portable Volume Ventilator with Flow Acceleration Limit and Apnea Back Upis an electro-mechanical device used to assist a patient's respiratory efforts. It consists of fourmajor subsystems: AIR DELIVERY; POWER MANAGEMENT; USER INTERFACE; and SYSTEM

CONTROL.

2-2

Description


Air delivery The AIR DELIVERY subsystem filters and delivers the prescribed amount of air to the patient.The air delivery subsystem consists of:

• a pump assembly • a pneumatic porting assembly • a filter system

Power management

The POWER MANAGEMENT subsystem manages the power distribution for the ventilator andconsists of five elements:

• an internal battery • an external battery (if used) • An AC line power source • an internal battery charger• a power system control function

The AC line power source is the primary source and should be used when available. Theexternal battery supplies power when the AC line source is disconnected. The internal batterysupplies power when no external power source is available. The internal battery chargermaintains the internal battery in a charged state (when an external power source is available).

User interface The USER INTERFACE subsystem enables the caregiver to change the operating and ventilationparameters, and it alerts the caregiver when an alarm condition exists. This subsystem consistsof two elements:

• the top panel, which has alarm and power indicators, two keys, and a pressure/batterycharge level meter

• the control/display panel, which has an alphanumeric display and keys that allow theoperator to control operational and ventilation parameters

2-3

Description


System controlThe SYSTEM CONTROL subsystem manages, monitors, and diagnoses the operation of the othersubsystems. The control subsystem has five functions:

• The monitoring function stores information for later retrieval. • The diagnostics function examines the ventilator operation for failures. • The air delivery control function orchestrates the delivery of air to the patient.• The interface control function enables communication between the unit and the

operator. • The power system control function manages the ventilator’s acquisition and distribu-

tion of electrical power.

2-4

Description


Features of Achieva VentilatorsThe Achieva ventilators are available in three models described in the table below. The modelnumber is indicated on the front door of the ventilator.

Achieva Achieva PS Achieva PSO2

Modes of Ventilation

ASSIST/CONTROL Yes Yes Yes

with PRESSURE CONTROL Capability Yes Yes Yes

SIMV Yes Yes Yes

with CPAP Yes Yes Yes

with PRESSURE SUPPORT No Yes Yes

Spontaneous (PRESSURE SUPPORT) No Yes Yes

with CPAP No Yes Yes

Dial-in PEEP (3-20 cmH2O) Yes Yes Yes

Flow Triggering Yes Yes Yes

Internal O2 Blender No No Yes

Internal Modem No Yes* Yes*

Access to Stored Events with the Report Generator Software

Yes Yes Yes

Pediatric Capability Yes Yes Yes

Internal Battery Yes Yes Yes

External Battery Capability Yes Yes Yes

Portability Yes Yes Yes

* Available only in the U.S. and Canada

2-5

Description


Front view

Figure 2-1: Front view

A Top panel

B Door panel

C Patient pressure port

D Patient air port

E Exhalation valve port

F Patient pressure meter

F

D

B

A

C

E

2-6

Description


Top panel

Figure 2-2: Top panel

A ALARM INDICATORS

The corresponding alarm indicator will flash when an alarm condition is detected. Theindicators are turned off when the alarm condition is corrected and the ALARM SILENCE/RESET key is pressed. The Achieva ventilators are equipped with the following alarm indicators:• LOW PRESSURE/APNEA

• HIGH PRESSURE

• SETTING ERROR

• POWER SWITCHOVER

• LOW POWER

• O2 FAIL (Only on Achieva PSO2)

A

B

C D

E

2-7

Description


B POWER LightsThe power lights indicate which electrical source the ventilator is currently using andwhether the internal battery is being charged. The power lights include• A.C.• EXTERNAL BATTERY

• INTERNAL BATTERY

• BATTERY CHARGING

C Alarm Control LightThe ALARM CONTROL light flashes when the audible alarm has been presilenced. TheALARM CONTROL light will light continuously when the nonlatching audible alarmfeature is active.

D ASSIST/SPONTANEOUS LightThe ASSIST/SPONTANEOUS indicator lights each time the patient’s effort is greater thanthe sensitivity setting.

E PATIENT PRESSURE METER

The PATIENT PRESSURE meter shows the level of pressure that is currently in the patientcircuit.

2-8

Description


Display and controls

Figure 2-3: Display and controls

The CONTROL/DISPLAY panel consists of • an alphanumeric display that shows current operating parameters and ventilator infor-

mation • push-button keys that the operator uses to make selections

The CONTROL/DISPLAY panel is located behind the ventilator’s front door panel.

2-9

Description


Following is a description of the keys’ functions.

STANDBY

Use the STANDBY key to place the ventilator in the standby mode, a state where no air isbeing delivered and the internal battery is being charged.

VENTILATE

Use the VENTILATE key to deliver air to the patient.

MENU/ESC

The MENU/ESC key activates the menu options on the ventilator’s display.

UP and DOWN arrow keys

The up and down arrow keys operate in three ways:• When a ventilation parameter is flashing, use the up/down keys to scroll to the

required setting.• When the MENU/ESC button has been pushed, use the up/down keys to scroll to the

required menu.• Pressing the up/down keys when neither a menu nor a parameter is active will cause

the last alarm message to be displayed.

START/ENTER

When the ventilator is in Standby, pressing the START/ENTER key will activate the dis-play. The START/ENTER key is also used to accept the currently flashing parameter as thenew setting.

CautionBefore pressing the Start/Enter key, check all parameters for appropriateness.

2-10

Description


MODE

The MODE section of the display screen shows the current ventilation mode setting.Pressing the MODE key causes the current mode on the display to flash and allows theventilation mode to be changed.

VOLUME

The VOLUME section of the display screen shows the volume of air that is set to be deliv-ered to the patient’s lungs during volume breaths. Pressing the VOLUME key causes thecurrent volume setting to flash and allows it to be changed.

INSPIRATORY FLOW ACCELERATION LIMIT

Selecting the INSPIRATORY FLOW ACCELERATION LIMIT in the menu key permits controlduring a pressure-supported or a pressure-controlled breath. When this feature is ON, theactual flow rate during the inspiratory phase of a pressure-supported or a pressure-con-trolled breath cannot exceed 180 LPM.

INSPIRATORY TIME

The INSPIRATORY TIME section of the display screen shows the length of time it takes theventilator to deliver the volume breaths and pressure control breaths to the patient.Pressing the INSPIRATORY TIME key causes the current inspiratory time setting to flashand allows it to be changed.

FLOW

The FLOW section of the display shows the average air flow during setup and, ten sec-onds after ventilation begins, it shows the peak flow delivered to the patient. The calcu-lated value of the average air flow during setup is given in liters/minute.

2-11

Description


SENSITIVITY

During setup, the SENSITIVITY section of the display screen shows the value of the flowtrigger sensitivity setting; during ventilation, it displays what trigger criteria was met tocycle an assisted breath. Pressing the SENSITIVITY key causes the current sensitivity set-ting to flash and allows it to be changed.

NoteWhen using PEEP, set the Pressure Trigger in addition to SENSITIVITY (Flow Trigger). ThePressure Trigger setting can be accessed and changed as a menu option.

BREATH RATE

The BREATH RATE section of the display screen shows the rate at which volume andpressure control breaths are delivered. Pressing the BREATH RATE key causes the currentbreath rate setting to flash and allows it to be changed.

PRESSURE

The PRESSURE section of the display shows the pressure level maintained during a pres-sure-supported breath and the maximum pressure allowed during a pressure-controlledbreath. Pressing the PRESSURE key causes the current pressure support or pressure con-trol setting to flash and allows it to be changed.

The PEEP (Positive End Expiratory Pressure) section of the display screen shows thepressure maintained at the end of a delivered breath. Pressing the PEEP key causes thecurrent PEEP setting to flash and allows it to be changed. You should also set the pres-sure trigger when using PEEP. The pressure trigger will function relative to the PEEPsetting baseline. When using PEEP, use the pressure trigger along with sensitivity(Flow Trigger). The pressure trigger setting can be accessed and changed as a menuoption.

2-12

Description


LOW PRESSURE

The LOW PRESSURE limit section of the display shows the minimum pressure that mustbe exceeded to prevent a Low Pressure alarm. The Low Pressure alarm sounds after twoconsecutive cycles below the low pressure limit. The Low Pressure alarm sounds for aValley alarm after two consecutive breath cycles that do not fall below the low pressurelimit. Pressing the LOW PRESSURE key causes the current low pressure limit setting toflash and allows it to be changed.

Warning Some circuit components will defeat a Low Pressure alarm by keeping thepressure in the circuit above the alarm limit. Examples of these componentsinclude hydrated heat and moisture exchangers (HMEs), adapters, andtracheostomy tubes. If the patient circuit is disconnected from the patient,but still connected to these components, a Low Pressure alarm may notsound. See the Achieva Ventilator Clinician’s and User’s Manuals for details.

HIGH PRESSURE

The HIGH PRESSURE section of the display shows the highest pressure the ventilator willallow without sounding the High Pressure alarm and limiting the breath. Pressing theHIGH PRESSURE key causes the current high pressure limit setting to flash and allows itto be changed.

I:E RATIO

The I:E RATIO display shows the ratio of inspiratory to expiratory time. The Achievaventilators permit a range of inspiratory times from 0.2 seconds to 5.0 seconds. The I:Eratio is calculated according to this formula:

I:E Ratio = [(60/Breath Rate) - Inspiratory Time] / Inspiratory Time

2-13

Description


FIO2 (Only on Achieva PSO2)

The FIO2 display shows the set enriched oxygen level. Pressing the FIO2 key causes thecurrent FIO2 level setting to flash and allows it to be changed. A setting of over 21 willactivate the internal oxygen blender.

For the Achieva ventilator models that do not have the oxygen function, the FIO2 key ispresent, but it has no label and is inoperative.

NoteFlow and pressure measurements are displayed on the LCD screen of the ventilator. Flow ismeasured at the output port of the ventilator. These measurements must be corrected for alti-tude (using the ALTITUDE setting) and have an accuracy of ±2 LPM at nominal barometricpressures. Pressure measurements are taken at the patient end of the breathing circuit. Pres-sure measurements are relative to the current atmospheric pressure and have an accuracy of±2.5 cm H2O.

2-14

Description


Back and sides

Figure 2-4: Rear and side view

D

E

FG

C

B

A

J

I H

2-15

Description


A Inlet FilterFilters air as it enters the ventilator.

B Power Cord Connector

C External Battery Connector

D Side RailUsed for mounting some accessories on the ventilator.

E Audible Alarm Port (on side of ventilator)DO NOT BLOCK.

F Communications Connector (RS-232 Port)This connector is used to connect a printer, external modem, or a Report Generator-equipped computer directly to the ventilator. Follow the accessory manufacturer’sconnection instructions for the appropriate connection procedure.

G Nurse Call OutputThe ventilator can be connected to nurse call stations through this output.

H Remote Alarm ConnectorThe remote alarm cable plugs into the remote alarm cable jack on the back of theventilator. Be sure it is firmly in place. The cable slips in only if you have the button onthe end of the connector facing down. To remove the cable from the ventilator, press thebutton and pull the connector straight out.

I Modem Connector (only on Achieva PS and Achieva PSO2 in the US and Canada)A telephone cord is plugged into the ventilator’s modem connector. Insert the cord withthe tab facing down until you feel it click. Plug the other end of the cord into yourtelephone outlet.

J Oxygen Input Connection (only on Achieva PSO2)Connect the optional internal O2 blender to an oxygen source with a standard oxygenconnection hose. Screw the hose fitting tightly onto the oxygen input connection.

2-16

Description


Breath types and ventilation modes

Breath types available on the Achieva ventilators are:• volume breaths in ASSIST/CONTROL MODE

• pressure-controlled breaths in ASSIST/CONTROL MODE

• mandatory volume breaths in SIMV mode• pressure-supported breaths in SIMV or spontaneous MODES

• CPAP in SIMV or spontaneous modes

Volume breaths in assist/control mode

In ASSIST/CONTROL mode, with PRESSURE set to 0, each delivered breath will be of theselected VOLUME, delivered over the selected INSPIRATORY TIME. Inspiration is triggered bypatient-generated flow or pressure drop (for assisted breaths) or by the ventilator (forcontrolled breaths; BREATH RATE is the controlling parameter). For both controlled andassisted breaths, the inspiration is limited by the volume, and is cycled by volume and time.

See the waveforms, Figure 2-5.

Note • Paw = Peak airway pressure• V = flow• Vt = Tidal volume

2-17

Description


Figure 2-5: Volume Breaths in Assit/Control Mode

2-18

Description


ASSIST/CONTROl mode guarantees a maximum period between breaths, as determined by theBREATH RATE setting. In the waveform on the opposite page, the ventilator delivers acontrolled (machine) breath, and calculates the time before another controlled breath must bedelivered. The ventilator delivers a second controlled breath at the conclusion of thatmachine-calculated breath time (for simplicity, we will use the term period for “machine-calculated breath time”). Following the second controlled breath, but before another periodcan elapse, the patient’s effort triggers an assisted (or patient-initiated) breath. This restartsthe period. At the conclusion of the period, the ventilator delivers another controlled breath.

See the waveforms, Figure 2-6.

2-19

Description


Figure 2-6: Controlled (machine) Breath Delivery

2-20

Description


Pressure-control in assist/control mode

In ASSIST/CONTROL MODE, with PRESSURE set greater than 0, each delivered breath willmaintain the selected pressure over the selected INSPIRATORY TIME. Inspiration is triggered bypatient-generated flow or pressure drop (for assisted breaths) or by the ventilator (forcontrolled breaths; BREATH RATE is the controlling parameter). For both controlled andassisted breaths, the inspiratory pressure is limited to the PRESSURE setting, and is cycled bytime. See the waveforms on the facing page.

Inspiratory Flow Acceleration Limit and Expiratory Sensitivity

Inspiratory flow acceleration limit controls flow during a pressure-supported or pressure-controlled breath. By selecting the inspiratory Flow Acceleration Limit feature, the operatorcan control flow during pressure-supported and pressure-controlled breaths. The inspiratoryFlow Acceleration Limit feature has settings of ON or OFF. When the Flow AccelerationLimit feature is ON, the actual flow rate during the inspiratory phase of a pressure-supportedor a pressure-controlled breath cannot exceed 180 LPM.

The operator can also set the expiratory sensitivity level, which is a percentage of peak flow atwhich a pressure-supported breath will be terminated. The expiratory sensitivity level hassettings of 15% to 55% in 10% increments. However, do not adjust this setting while inASSIST/CONTROL MODE.

2-21

Description


Figure 2-7: Pressure Control in Assist/Control Mode

2-22

Description


Mandatory volume breaths in SIMV mode

In SYNCHRONIZED INTERMITTENT MANDATORY VENTILATION (SIMV), the mandatory volumebreaths deliver the selected volume over the selected inspiratory time. Inspiration is triggeredby patient-generated flow or pressure drop (for assisted breaths) or by the ventilator (forcontrolled breaths; BREATH RATE is the controlling parameter). For both controlled andassisted breaths, the inspiration is limited by the volume, and is cycled by volume and time.

See the waveforms on the next page, Figure 2-8.

SIMV mode will also assist spontaneous breaths with pressure-supported breaths.

2-23

Description


Figure 2-8: Mandatory Volume Breaths in SIMV Mode

2-24

Description


In SIMV mode, the ventilator delivers volume breaths, as determined by the BREATH RATE

setting, and spontaneous breaths are assisted with pressure-supported breaths.

In the waveforms on the opposite page, Figure 2-9, the breath in the first machine-calculatedbreath time is due to a lack of patient effort in the preceding machine-calculated breath time;that is, the first breath shown is actually associated with a preceding machine-calculatedbreath time (for simplicity, we will use the term period for “machine-calculated breath time”).The second breath shown is delivered because of the absence of patient effort in the firstperiod shown. Before the next period elapses, the patient initiates an assisted volume breath.Although it continues into the third period, it fulfills the requirements of the second period.The second patient-initiated volume breath fulfills the requirements of the third period.Therefore, the ventilator does not deliver another breath until the fourth period has elapsed.

The patient-initiated breath that starts in the fifth period fulfills the requirements for the fifthperiod. The first patient-initiated breath in period six fulfills the requirements for period six;therefore, the second patient-initiated breath in period six is delivered as a pressure-supportedbreath. Because of the patient activity in period six, no breath is delivered in period seven;therefore, a breath is delivered at the start of period eight to fulfill the requirements of periodseven.

2-25

Description


Figure 2-9: Spontaneous Breaths Assisted with Pressure-supported Breaths

2-26

Description


Pressure-supported breaths

In SIMV or SPONTANEOUS modes, the supported breaths maintain the selected pressure.Inspiration is triggered by patient-generated flow or pressure drop. When Flow AccelerationLimit is on, maximum flow is limited to 180 lpm. When Flow Acceleration Limit is off, themaximum flow is delivered and is cycled to expiration when the flow drops to the ExpiratorySensitivity setting (between 15% and 55% of peak flow in 10% increments).

In SIMV, additional mandatory volume breaths will be delivered, depending on the selectedBREATH RATE.

Pressure-supported breaths is available only on the Achieva PS and Achieva PSO2.

See the waveforms on the opposite page, Figure 2-10.

2-27

Description


Figure 2-10: Supported Breaths Maintain Selected Pressure

2-28

Description


Continuous Positive Airway Pressure (CPAP)

CONTINUOUS POSITIVE AIRWAY PRESSURE (CPAP) is available in SIMV (all models) orSPONTANEOUS modes (Achieva PS and Achieva PSO2). PRESSURE must be set to 0. Theventilator maintains pressure at the selected PEEP over the entire breath cycle. Inspiration istriggered by patient-generated flow or pressure drop. Inspiration is limited by the pressure,and is cycled by the patient when the flow drops to the EXPIRATORY SENSITIVITY setting(between 15% and 55% of the peak flow).

In SIMV, additional mandatory volume breaths will be delivered, dependent on the selectedBREATH RATE.

See the waveforms on the next page, Figure 2-11.

2-29

Description


Figure 2-11: Continuous Positive Airway Pressure (CPAP)

2-30

Description


Specifications

Power

Power Line 100 to 240 VAC, 50 to 60 Hz

External DC Power See your ventilator’s back panel for specific voltage ranges.

Operating time: At least 19 hours under normal load, and 5.5 hours under heavy load* (24 VDC)

Internal Battery 24 VDC (nominal)

Operating time: At least 4 hours under normal load, and 1 hour under heavy load*

Gel cell, sealed Lead Acid, backup power

Lithium Battery, Memory power

Standard Power Converters 90 to 200 VAC

Fuses 250V, 3.15A, 5X20 mm, slow blow

Power Usage

Maximum 75 W

Minimum 10 W

Type Positive Pressure Volume ventilator

Motor 3-Phase Brushless Motor

Pump Piston, 50 ml to 2200 ml tidal volume capability

Protection against electricalshock

Type of protection: Class IDegree of protection: Type BF

*Normal Load: Mode = Assist/Control, Volume = 1000 ml, Breath Rate = 10 BPM, Inspiratory Time = 1.5 seconds, FIO2 = 21%, Sensitivity = 5 LPM, PEEP = 0 cmH2O/hPa, Vent pres.=30 cmH2O/hPa Heavy Load: Mode = Assist/Control, Volume = 1500 ml, Breath Rate = 20 BPM, Inspiratory Time = 1.0 seconds, FIO2 = 100%, Sensitivity = 5 LPM, PEEP = 20 cmH2O/hPa, Vent pres.=60 cmH2O/hPa

2-31

Description


Indicators

Normal Events

Patient Pressure Meter Displays patient pressure, -10 to + 100 cmH2O/hPa; also dis-plays battery charge when TEST BATTERY button is pressed.

Alphanumeric Display Shows current operating parameters and ventilator information.

Power Green LEDs indicate operating power source: AC, External Battery, Internal Battery.

Battery Charging Green LED indicates the unit is charging the internal battery.

Assist/Spontaneous Green LED indicates that the patient’s effort exceeds the sensi-tivity setting.

Alarm Control Red LED flashes at 1 second intervals during a presilence con-dition and continuously lights when the nonlatching alarm fea-ture is active.

Alarms Flashing red LEDs: Low Pressure/Apnea, Low Power, High Pressure, Setting Error, Power Switchover, O2 Fail (O2 Fail

available only on Achieva PS and Achieva PSO2).

Audible Alarms

One-Second Beep Relief Valve Test Failure, User Self-Test Error, Leak Test Failure

Repeated Single Beep Power switchover

Repeated Three Pulses Extremely Low Internal Battery, High Pressure, Invalid I:E Ratio, High Pressure<Low Pressure, Volume Error, Rate Error, Inspiratory Error, Oxygen Alarm, Pressure Differential Error

Repeated Five Pulses Low Pressure, Valley, Exhale Fail, Apnea, Battery Charge Depleted, Vent Inop

Continuous Tone Microprocessor failure

Single Beep Every FiveMinutes

Low internal battery.

One Second Beep EveryThirty Minutes

Minor Fault.

2-32

Description


One Beep Every FifteenMinutes

Ventilator is ventilating, and a serious fault is detected.

Three Second Tone Ventilator is in standby mode, and a serious fault is detected.

Alarm Volume 85 db or 70 db at a distance of 1 meter

Controls

Alarm Silence/Reset 1. Silences audible alarms during an alarm condition. 2. Silences an alarm before a known alarm condition occurs. 3. Used to reset an alarm after the alarm condition has been cor-rected.

Test Battery 1. When the test battery key is pressed, the Patient Pressure Meter shows the charge level of the battery currently in use. 2. Activates printer.

Standby Used to place the ventilator in the Nonventilate State, disabling the delivery of air.

Ventilate Enables the ventilator to deliver air to the patient.

Mode Causes the current mode on the display to flash and allows the mode to be changed.

Setting keys Volume, Inspiratory Time, Sensitivity, Breath Rate, Pressure, PEEP, Low Pressure, High Pressure, FIO2 (Achieva PSO2 only).

Menu/Esc Activates and deactivates the menu on the ventilator’s display.

START/ENTER Used to accept the currently flashing parameter as the new set-ting. Activates display.

Up and Down Arrow Keys Increases or decreases the parameter settings or menu levels. Pressing when the submenu is not active and a parameter has not been selected will cause the last alarm message to be dis-played.

2-33

Description


Settings

Volume For Assist/Control 50 ml to 2200 ml in 10-ml steps. For SIMV 50 ml to 1750 ml in 10-ml steps. Accurate to ± 10 ml for 50-500 ml and ± 10% (max 75 ml) for 100–2200 ml.

Inspiratory Time 0.2 to 5.0 seconds in increments of 0.1 seconds. Accurate to ±10%.

Sensitivity Flow: 3 to 25 LPM in 1 LPM increments. Accurate to ±2.0 LPM. Off or 1 to 15 cmH2O in 1 cmH2O/hPa increments. Accurate to ±2.5 cmH2O/hPa.

Breath Rate 1 BPM to 80 BPM in steps of 1BPM. Accurate to ±10% or 1 BPM, whichever is greater.

Pressure 0 to 50 cmH2O/hPa in 1 cmH2O/hPa increments. Accurate to ±2.5 cmH2O/hPa of the setting, once the pressure reaches the setting. Pressure support settings below 3 cmH2O/hPa default to 3 cmH2O/hPa.

PEEP 0 and 3 to 20 cmH2O /hPa in 1 cmH2O/hPa increments. Accurate to ±2.5 cmH2O/hPa.

Low Pressure 1 to 59 cmH2O /hPa in increments of 1 cmH2O /hPa. Activates within ±2.5 cmH2O /hPa.

High Pressure 2 to 80 cmH2O /hPa in increments of 1 cmH2O /hPa. Activates within ±2.5 cmH2O /hPa.

2-34

Description


O2 Level (only for Achieva PSand Achieva PSO2)

21% to 100% for tidal volumes greater than or equal to 100 ml; 21% to 70% for tidal volumes less than 100 ml in 1% increments. Accu-racy: 50 to 90 ml, 02 settings < = 70% + 10% 02; 100 to 2200 ml, O2 settings <50%, + 5% O2, all other O2 settings, + 10% of settings.

Supply pressures of less than 45 PSIG may result in reduced O2 per-formance at some settings. Optimum performance is achieved at 65 PSIG O2 supply pressure. It may take several minutes for the oxygen concentration to stabilize. The capacity of the O2 blender is a function of tidal volume and inspiratory time, which in combination influence peak flow. As peak flows increase (large tidal volumes combined with short inspiratory times), the limit of the O2 flow capacity is approached. The set O2 concentration cannot be delivered if the flow capacity of the O2 blender has been exceeded. In this case, an O2 fail alarm will occur. To ensure the prescribed oxygen concentration is delivered to the patient, measure the delivered gases with a calibrated oxygen ana-lyzer at all times.

Altitude 0 to 4500 meters in increments of 100 meters (or 0 to 14,760 feet in increments of 328 feet). (Set in menu system.)

Connectors

Modem Jack (Achieva PSand Achieva PSO2)

RJ 11 phone connector to connect the optional internal modem to telephone lines.

Communications Port RS-232 connector for Achieva Report Generator computer, printer, or external modem.

O2 Inlet (Achieva PSand Achieva PSO2)

9/16–18, DISS 1240 THD.

External Battery Connector 3-pin male receptacle for 24-Volt DC input.

Power Entry Module EIA dual-fuse power entry module.

Provides connections for hot, neutral, and grounded conductors.

The receptacle incorporates fuses in the hot and neutral lines.

2-35

Description


Inlet Filter Intake for patient air. Screw off cap for filter change. 98% effi-cient at 0.3microns.

Patient Pressure Port Port for connection to the proximal pressure line of the patient circuit. For 3/16-in I.D. tube.

Remote Alarm Connector Connector for remote alarm.

Nurse Call Connector Connector for Nurse Call Station.

Patient Air 22-mm O.D./15-mm I.D. ISO Fitting

Exhalation Valve Port Port for connection to the exhalation valve of the patient circuit. For 1/8-in I.D. tube.

Environment

Operating 5°C to 40°C (41°F to 104°F), 10% to 90% RH.

Storage -20°C to 50°C (-4°F to 122°F), 10% to 90% RH.

When moving the ventilator from a non-operating to an operat-ing environment, allow a minimum of one-hour temperature stabilization before use.

When storing the ventilator, the battery must be recharged every thirty days. Storage above or below specified operating temper-atures may affect battery life.

2-36

Description


The Achieva ventilators are intended to operate within its specifications if they are properlymaintained, and the service schedule is followed.

The Achieva ventilators are protected against electrostatic contact discharge of up to eightkilovolts (8 kV). Electrostatic discharge greater than eight kilovolts may damage theventilator.

Miscellaneous

Maintenance Preventative maintenance must be performed by qualified per-sonnel every 6000 operating hours, or recertification every twelve (12) months, whichever occurs first.

Dimensions 10.75 in X 13.30 in X 15.60 in (27.3 X 33.8 X 39.6 cm)

Weight Less than 32 lbs.

Resistance Factor Maximum of 4.5 cmH2O/hPa @60 LPM

Compliance Factor 1.25 mL/hPa for A/C breaths2.50 mL/hPa for Pressure Support breaths

Emergency Pressure Relief 90 ± 10 cmH2O

Response time 75 milliseconds (under the following conditions): Resistance = 5 cmH2O/hPa/L/seconds; Compliance = 50 ml/cmH2O/hPa; Breath Rate = 20 BPM; Volume = 1500 ml; Pressure Support = 10 cmH2O/hPa; PEEP = 5 cmH2O/hPa. Response time varies inversely with the displayed flow rate, and directly with the selected trigger level.

Flow (average) 2.0 LPM to 150 LPM

2-37

Description


Standard compliance

The ventilator complies with the following international agency standards:• IEC 601-1 Medical Electrical Equipment, 1988 Part 1: General Requirements for

Safety1

• IEC 601-1-2 Medical Electrical Equipment, Part 1: General Requirements for Safety,Part 2: Collateral Standard - Electromagnetic Compatibility Requirements and Tests

• CAN/CSA-C22.2 No.601.1-M90 Medical Electrical Equipment Part 1: GeneralRequirements for Safety1

• UL2601-1 Medical Electrical Equipment, Part I: General Requirements for Safety(1994)1

FCC Part 68 information

This information applies to Achieva PS and Achieva PSO2 ventilators, which are equippedwith an internal modem. These units have a MODEM label near the modem connector on theback panel.

Use the ringer equivalence number (REN) to determine the number of devices you canconnect to the telephone line. Excessive RENs on the telephone line may result in devices notringing in response to an incoming call. In most, but not all areas, the sum of the RENs shouldnot exceed five (5). Contact the telephone company to determine the maximum REN for thecalling area.

The required USOC jack for the Achieva ventilator is USOC RJ11C.

1. Classified as Class 1 and internally powered; Type BF; drip proof, not suitable for use in the presence of flammable anesthetics, continuous operation.

2-38

Description


An FCC compliant telephone cord and modular plug is provided with this equipment. Thisequipment is designed to be connected to the telephone network or premises wiring using acompatible modular jack which is Part 68 compliant.

If the Achieva ventilator causes harm to the telephone network, the telephone company willnotify you in advance. If advance notice is not practical, the telephone company will notifythe customer as soon as possible. Also, you will be advised of your right to file a complaintwith the FCC if you believe it is necessary.

The telephone company may make changes in its facilities, equipment, operations, orprocedures that could affect the operation of the Achieva ventilator. If this happens, thetelephone company will provide advance notice in order for you to make the necessarymodifications to maintain uninterrupted service.

If you experience trouble with the Achieva ventilator, please contact Nellcor Puritan Bennett,phone number 800.255.6774 for repair and/or warranty information. If the trouble is causingharm to the telephone network, the telephone company may request that you remove theAchieva ventilator from the network until the problem is resolved.

Do not make repairs. Doing so voids the user’s warranty.

Do not install the Achieva ventilator on public coin service telephone. Connection to partyline service is subject to state tariffs. (Contact your state public utilities commission forinformation.)

Note Puritan Bennett recommends that the customer install an AC surge arrestor in the AC outlet towhich this device is connected. This is to avoid damaging the equipment caused by local light-ning strikes and other electrical surges.

3-1


Chapter 3: Testing

This section provides procedures for verifying the correct operation of the ventilator.

Overview

The following test procedures are designed to minimize the need for special test equipmentand to eliminate the need for disassembly of the ventilator. The use of a stop watch limits theaccuracy of tests involving time and rate. Therefore, before accepting or rejecting a unit basedon these tests, make sure that the results are not due to procedural error.

Scope

The checkout procedure in this section includes:• visual inspection of controls, attachments, accessory items, and external surfaces.• pneumatic testing of the patient circuit for function and leaks.• testing of power functions, including battery recharging.• verification of ventilation modes.• measuring of ventilation parameters.• checking of alarm and indicator functions.

Calibration and testing beyond the scope of this manual should be referred to an authorizedservice technician.

Frequency

Testing should be performed monthly.

3-2

Testing


Documentation

The operational checklist, located at the end of this section, should be reproduced and usedeach time a test is performed. A copy of the completed checklist should be maintained in thehealth care provider’s file.

Ventilation equipment

In addition to the ventilator, the following Nellcor Puritan Bennett equipment is required for acomplete verification test:

• patient circuit with test lung• exhalation manifold valve• bacteria filter• DC power cable assembly• 24 VDC battery

Test equipment

The following test equipment is also needed.

Table 3-1: Equipment and Recommended Supplier

Equipment Recommended Supplier

Respirometer (hand-held) Wright

Fraser-Harlake

Ferrairs Medical

Stop Watch Any

3-3

Testing


Calibration of test equipment

Verify that the calibration procedures comply with the test instrumentation requirementsadopted by the testing organization. Verify also that the calibration period has not lapsed.

Qualifications of test personnel

Testing should be performed by a qualified operator or service technician familiar with thefunction, setup, and operation of the ventilator. For basic operational instructions, refer toChapter 2 of this manual.

Supplies• mild detergent• absorbent wipes or clean towels or cloths

3-4

Testing


Standard ventilation parameters

Unless otherwise stated, use the following standard ventilation parameters.

ConnectionsUnless otherwise specified, make the following external connections to the ventilator:

• power plug to AC power (three prong, grounded)• patient hose (with exhalation manifold) to PATIENT AIR port (front panel)• 500-ml test lung to exhalation manifold

• proximal pressure tube to PATIENT PRESSURE port (front panel) • exhalation valve tube to the EXHALATION VALVE port (front panel)• connect to a fully charged external battery.

Table 3-2: Standard Ventilation Parameters

Parameter Setting

MODE Standby

VOLUME 500 ml

INSPIRATORY TIME 1.5 seconds

SENSITIVITY 5 LPM

BREATH RATE 10 BPM

PRESSURE SUPPORT 0

PEEP 0

LOW PRESSURE 10 cmH2O/hPa

HIGH PRESSURE 80 cmH2O/hPa

FIO2 21%

3-5

Testing


WarningDo not use the ventilator if it does not pass all of the verification tests. Referthe ventilator to a Nellcor Puritan Bennett Service Technician or call800.255.6774 for repair and calibration.

Visual inspectionCleaning. Prior to inspecting and testing the ventilator, clean the exterior with a milddetergent. Do not allow liquid cleaning agents to penetrate the inside of the ventilator.

WarningAny liquid leaking into the ventilator or its connections may damage theunit or result in an electrical shock hazard.

Cabinet. Examine the cabinet for scratches, dents, or deformities. Side mounting bracketsshould be securely attached. Rubber feet should be in place and not broken or cracked.

Top Panel. Check the control/display panel for cracks or breaks. Check the PRESSURE METER

window for scratches and debris. The meter needle should be within one division of 0 cmH2O/hPa if the ventilator is plugged into AC power.

Control/Display Panel. Open the magnetically secured door and examine the control/displaypanel for scratches, dents and dirt.

Front Panel Connections. Check the front panel connection ports for cracks, dents or benttubes. Make sure they are free of foreign matter.

Rear Panel. Check the rear panel for dirt and damage. Examine the power cord for damagedinsulation. Check the plug for bent pins or breaks. Examine the external battery connector andcommunications port for secure attachment and straight connector pins.

Inlet Air Filter. Unscrew the cap to the inlet air filter and replace the fiber air filter. Use onlyfilters supplied by Nellcor Puritan Bennett. Follow the instructions for replacing the filter.

3-6

Testing


Caution Correct any problems found during the visual inspection before proceeding tounit checkout.

Pneumatic test

The ventilator’s built-in user self-test can be used to test the ventilator’s pneumatic system forleaks and response to high pressure conditions. The ventilator must be in Standby mode.

Figure 3-1: Front panel view

1. While Standby, press the MENU/ESC key.

2. The user self-test is the first item in the menu. The display screen will readPress ENTER to begin

User Self-Test

3. Press the START/ENTER key.

The display screen will readOcclude patient’s

end-of-breathing circuit

3-7

Testing


4. Block the part of the exhalation manifold that connects to the patient, as shown below. It is important that you make a tight seal and do not let any air escape.

Figure 3-2: Blocking exhalation manifold

WarningA ventilator patient is highly susceptible to respiratory infections. Dirty orcontaminated equipment may be a source of infection. Clean equipment isessential for successful ventilation. Be sure to wash your hands thoroughlybefore and after contact with the patient circuit.

The display screen will readPress ENTER when ready

to begin test

5. When you have a good seal on the exhalation manifold, press the START/ENTER key.

The ventilator will push air into the circuit as it runs the test.

3-8

Testing


6. If the ventilator passes the test, this message will be displayed:TEST PASSED

ENTER: repeat ESC: exit

Press the START/ENTER switch to repeat the test, or the MENU/ESC switch to end the test.

7. If the ventilator fails the test, one of three messages will be displayed:

a. Test ERRORRefer to MANUAL

If this message is displayed, it means the test was not conducted properly.• Press the ALARM SILENCE/RESET switch. The display screen will indicate that

the test was a failure, as shown here:Test FAILED

ENTER: repeat ESC: exit• Check all the connections in the patient circuit, including the blockage in the

exhalation manifold.• Press START/ENTER to repeat he test.

b. Leak Test FAILEDRefer to MANUAL

If this message is displayed, it means that there is a leak in the patient circuit somewhere between the patient air port and the blockage you created at the exhalation manifold.• Acknowledge the alarm condition by pressing the ALARM SILENCE/RESET

switch. The display screen will indicate that the test was a failure.Test FAILED

ENTER: repeat ESC: exit• Press START/ENTER to repeat the test.• If the ventilator fails the test again, try using a new patient circuit and repeat the

test. If the ventilator fails with a new patient circuit, contact your equipmentsupplier or Nellcor Puritan Bennett.

3-9

Testing


c. Relief valve test FAILEDRefer to MANUAL

If this message is displayed, it means that the ventilator’s relief valve did not function properly.• If the ventilator fails the test again, contact your equipment supplier or Nellcor

Puritan Bennett.

Power system checkout

The following procedure verifies that the ventilator selects the correct power source. It alsoverifies that power switchover occurs upon power failure and that the proper alarm andindicators are activated.

Prior to beginning the checkout procedure, set the standard ventilation parameters from Table3-3. Record the pass/fail determination on a copy of the operational checklist, located at theend of this chapter.

Table 3-3: Power system checkout

Key/Action From To Desired Response

AC Power Cord Unplugged Plugged in Indicator lights & audible alarm on for 2 seconds; A.C. and BATTERY CHARGING lights come on; ventilator cycles once; PRESSURE METER at 0 ± 2 cmH2O/hPa.

MODE Standby Assist/Control

Indicator lights & audible alarm on for 2 seconds; A.C. remains on; ventilator cycles at 10 ± 1 BPM; PRESSURE METER indicates pressure excursion.

External Battery Power Cord Plugged in Connect external battery.

3-10

Testing


AC Power Cord Plugged in Unplugged POWER SWITCHOVER light on; alarm sounds; EXTERNAL BATTERY LED and BATTERY CHARGING lights stay on; A.C. LED is off; ventilator continues to cycle.

ALARM SILENCE/ RESET Press Alarm and indicator turn off

Disconnect External Battery POWER SWITCHOVER light on; alarm sounds; INTERNAL BATTERY light on; EXTERNAL BATTERY light off; ventila-tor continues cycling.

ALARM SILENCE/ RESET Press Audible and visual alarms turn off

TEST BATTERY Press & hold

PRESSURE METER indicates charge condition of internal battery: INTERNAL BATTERY light comes on.

AC Power Cord Unplugged Plugged in INTERNAL BATTERY light goes OFF; A.C. light comes on; Battery Charging light comes on.

MODE Assist/Control

Standby Completes Power System Checkout

Table 3-3: Power system checkout (Continued)


3-11

Testing


Assist/control ventilation mode checkout

Verify the ASSIST/CONTROL Mode functions by performing the following checkout procedure.Record the results on a copy of the Operational Checklist located at the end of this chapter.Prior to beginning the checkout procedure, set the standard ventilation parameters from thechart on page 2-4.

The following symbol will assist you when you use the ASSIST/CONTROL Mode functions.Press this key to enter an increase or decrease in quantities.

START/ENTER function setting key:

NoteVolume variation will be a function of the respirometer accuracy, which is flow-rate depen-dent. See the respirometer manual. Ventilator volume change occurs at a rate of 100 ml/breathcycle.

3-12

Testing


Table 3-4: Assist/Control ventilation mode checkout


MODE Standby Assist/Control

Indicator lights & audible alarm on for 2 seconds; A.C. LED and BATTERY CHARG-ING lights on; PRESSURE METER regis-ters pressure

Measure breath time with the stop watch.

Rate equals 10 ± 1 BPM

Replace test lung and patient hose with respirometer. Block EXHALATION VALVE port.

Volume reads 500 ± 100 ml

VOLUME 500 1000 Respirometer volume reads 1000 ± 120 ml

VOLUME 1000 2000 Volume reads 2000 ± 200 ml

VOLUMEReplace test lung and patient hose

2000 500 Completes Volume check

Measure I-TIME Should be 1.5 seconds ± 10%

VOLUME 500 1000 Should be 1.5 seconds ± 10%

INSPIRATORY TIME 1.5 3.0 Should be 3.0 seconds ± 10%

3-13

Testing


INSPIRATORY TIME 3.0 4.5 SETTING ERROR alarm

Reset INSPIRATORY TIME 4.5 1.5 Alarm, LED off; completes I-TIME and SETTING ERROR check

HIGH PRESSURE 80 25 Pressure increase on meter stops at HIGH PRESSURE setting; HIGH PRESSURE LED flashes; alarm sounds

ALARM SILENCE/ RESET Press Alarm off; HIGH PRESSURE LED flashes. In one minute, alarm reactivates.

VOLUME 1000 500 HIGH PRESSURE LED and audio alarm continue until pressure is below HIGH ALARM setting, then alarm is off; LED remains on.

ALARM SILENCE/ RESET Press LED extinguishes

HIGH PRESSURE 25 80 Completes HIGH PRESSURE check

Remove test lung At second breath, alarm sounds, LOW PRESSURE/APNEA LED flashes

ALARM SILENCE/ RESET Press Alarms off; LED flashes. After one minute alarm reactivates.

Replace test lung Alarm off

ALARM SILENCE/ RESET Press LOW PRESSURE/APNEA LED turns off. This completes the LOW PRESSURE/APNEA Checkout.

Table 3-4: Assist/Control ventilation mode checkout (Continued)


3-14

Testing


SIMV ventilation mode checkout

This procedure verifies those operational functions unique to the SIMV mode. Functions thatare verified in the Assist/Control mode are not repeated. Therefore, it is necessary to test theAssist/Control mode in addition to SIMV.

Prior to beginning the checkout procedure, set the standard ventilation parameters from thechart on page 2-4. Record the pass/fail results on a copy of the Operational Checklist, locatedat the end of this chapter.

Note In SIMV mode, the ventilator coordinates assisted breaths with the patient’s inspiratory effort.Therefore, measured breath rates will vary somewhat from the rate set for the BREATH RATE

parameter.

Table 3-5: SIMV mode checkout


AC Power cord Unplugged Plugged in Indicator lights & audible alarm on for 2 seconds; A.C. and BATTERY CHARGING light on; ventilator cycles once; PRES-

SURE METER at 0 ± 1 cmH2O/hPa

MODE Standby SIMV Indicators & audible alarm on for 2 sec-onds

BREATH RATE 10 6

SENSITIVITY 0 5

Squeeze test lung to simulate 2 or 3 spontaneous breaths at about 6-second intervals

ASSIST/SPONTANEOUS LED flashes; pressure gauge dips negative; ventilation occurs synchronized to simulated effort

3-15

Testing


Cease spontaneous effort A mandatory breath will occur within 20 seconds after spontaneous breaths cease and will continue at the 6 ± 1 BPM rate; no alarms activate.

BREATH RATE

Within 20 seconds after switching to 4, simulate breaths

6 4 ASSIST/SPONTANEOUS LED lights; ven-tilation occurs, synchronized to effort.

Cease spontaneous effort In 20 ± 0.5 seconds after last spontaneous breath, alarm on, LOW PRESSURE/APNEA LED on; ventilator delivers 10 ± 1 BPM

ALARM SILENCE Press Light and alarm off; 10 BPM delivery stops in 20 ± 0.5 seconds; alarm reactivates

ALARM SILENCE/ RESET Press Light & alarm deactivate; 10 BPM delivery stops.

Within 20 seconds, simulate breaths

ASSIST/SPONTANEOUS LED flashes; breaths delivered; light and alarm off

MODE SIMV Standby This completes SIMV check.

Table 3-5: SIMV mode checkout (Continued)


3-16

Testing


Pressure-controlled ventilation mode checkout

The following procedure only verifies those functions unique to the PRESSURE CONTROL

mode of ventilation. Those functions that are verified in the Assist/Control mode are notrepeated here. Perform an Assist/Control checkout in addition to PRESSURE CONTROL modecheckout.

Prior to beginning the checkout procedure, set the standard ventilation parameters from thechart on page 2-4. Record results on a copy of the Operational Checklist, located at the end ofthis chapter.

Table 3-6: Pressure-controlled mode checkout


AC Power Cord Unplugged Plugged in

Indicator lights & audible alarm on for 2 seconds; A.C. and BATTERY CHARGING lights are on; ventilator cycles once; PRES-

SURE METER at 0 ± 1 cmH2O/hPa

MODE Standby Assist Control

Alarms and indicators on for 2 seconds; ven-tilator commences cycling at 10 ± 1 BPM

PRESSURE 0 10

Observe PRESSURE METER Pressure indicated on meter rises to 10 cmH2O/hPa.

MODE Assist Con-trol

Standby This completes Pressure-control check.

3-17

Testing


Pressure support mode checkout

The following procedure only verifies those functions unique to the PRESSURE SUPPORTmode of ventilation. Those functions that are verified in the Assist/Control mode are notrepeated here. Perform an Assist/Control checkout in addition to PRESSURE SUPPORTmode checkout.

Prior to beginning the checkout procedure, set the standard ventilation parameters from thechart on page 2-4. Record results on a copy of the Operational Checklist, located at the end ofthis chapter.

Table 3-7: Pressure support


AC Power Cord Unplugged Plugged in

Indicator lights & audible alarm on for 2 seconds; A.C. and BATTERY CHARG-ING lights are on; ventilator cycles once; PRESSURE METER at 0 ± 1 cmH2O/hPa

MODE Standby Sponta-neous

Alarms and indicators on for 2 seconds

PRESSURE 0 10

Observe PRESSURE METER Pressure indicated on meter rises to 10 cmH2O/hPa.

MODE Assist Con-trol

Standby This completes Pressure-Control Check.

3-18

Testing


Achieva ventilator operational checklist

Owned by: Serial # Hour Meter Reading: Date:

User: Serviced by:

Address: Address:

City: City:

State & Zip: State & Zip:

User Phone: Service Representative:

Test Operation Test Results Pass Fail

Visual Inspect As specified r r

Set standard parameters Procedure Not applicable

Connections Procedure Not applicable

Pneumatic Test Perform Test As specified in procedure. r r

Power System Perform Tests As specified in procedure. r r

Assist/Control Mode Perform Tests As specified in procedure. r r

SIMV Mode Perform Tests As specified in procedure. r r

Pressure Control Mode Perform Tests As specified in procedure. r r

Pressure Support Mode Perform Tests As specified in procedure. r r

Comments:

Signature: Date:

4-1


Chapter 4: Theory of operation

This chapter provides an operating theory for the Achieva ventilators.

Pneumatic system

NoteText in bold sans-serif font refers to the labels in the illustration; see Pneumatic diagramon page 4-2.

ComponentsPump — Airflow is created by a 7-in diameter mechanical piston pump. The piston is drivenby a brushless DC motor through a 96:1 speed reduction gearbox. The pump is capable ofdelivering volumes of 50 to 2200 ml and pressures up to 90 ± 10 cmH2O/hPa.

Manifold — The manifold channels and directs the airflow within the ventilator. Themanifold also provides a means to mount various valves and transducers.

Valves — Check valves are used to control the air flow direction. They are accessible forreplacement by authorized personnel should they become worn, dirty, or otherwise faulty. Themanifold is equipped with a mechanical relief valve that will protect the patient from highpressures. It is set to 90 ± 10 cmH2O/hPa.

Exhalation Manifold — The exhalation manifold is a pneumatically operated, three-wayvalve that directs the patient’s inspired and expired flow. It may also be used as an integralpart of the PEEP system. It is available in both a disposable and reusable version. They areeasily disassembled, cleaned, and reassembled.

4-2

Theory of operation


Figure 4-1: Pneumatic diagram

4-3

Theory of operation


OperationPump — The withdrawal stroke of the piston in the mechanical piston pump draws air intothe ventilator through a 0.3 micron inlet filter. Air enters the cylinder through the inlet c.v.(check valve) and, if called for, is mixed with oxygen from the blender (available only onAchieva PSO2). The combined gases become pressurized by the forward piston stroke andexit through the pump outlet c.v. (check valve) and through a 50 X 250 mesh filter. The gaspasses through one additional 40-mesh filter just before leaving the ventilator through thepatient air outlet tube.

Supplemental Oxygen — The internal oxygen blender (available only on Achieva PSO2) isshown in the Blender Components box on the pneumatic diagram. Oxygen enters theblender through the DISS O2 connector, and then passes through the blender c.v. (checkvalve) and the mesh filter (40 micron). The regulator drops the pressure to 55 psig beforefeeding the oxygen to two parallel VSO O2 valves. The ventilator allows enough oxygen intothe pump to reach the selected concentration. If the ventilator determines that the measuredflow rates are insufficient for the selected FIO2 settings O2 FAIL alarm will sound.

Ventilator by-pass — Ventilator by-pass uses a parallel path incorporated into the manifold.This path bypasses the pump and allows air to move directly to the patient air outlet tubeafter passing through the 0.3 micron inlet filter and the ventilator by-pass c.v. (checkvalve). This allows the patient to breathe spontaneously in the event of complete ventilatorfailure.

PEEP — The PEEP valve is a voltage-sensitive orifice (VSO) that controls the mushroomvalve in the exhalation manifold. With the VSO open, the mushroom valve is deflated,resulting in a PEEP level of 0 cmH2O/hPa. With the VSO fully closed, the mushroom valve isfully seated, and the maximum PEEP pressure in the patient circuit is 20 cmH2O/hPa. As asafety measure, the VSO is normally open to deflate the mushroom valve. This allows thepatient, in the event of ventilator failure, to breathe through the exhalation manifold.

4-4

Theory of operation


System control

The block diagram below provides an overview of the control system.

Figure 4-2: Control System block diagram

4-5

Theory of operation


Micro-controller

The ventilator is controlled by a micro-controller via software stored in flash memory. The micro-controller consists of:

• 16-bit Central Processing Unit (CPU)• Systems Integration Module (SIM)• 1024 bytes of Static RAM• 8-channel, 10-bit Analog to Digital Converter• Serial port• Two 16-bit timer/counters• Two Pulse Width Modulator (PWM) output channels

System memory

System memory consists of three modules:

Flash Memory — stores the software instructions for system operation.

Static Random Access Memory (SRAM) — provides temporary storage of data. A lithiumback-up battery allows data stored in SRAM to be retained when other power sources fail.

Non-Volatile Random Access Memory (NVRAM) — The ventilator uses Non-VolatileRandom Access Memory (NVRAM) for storing ventilator parameter settings. The NVRAMis backed up by a battery (BBU).

Real-time clock

The ventilator has a real-time clock that can be set by the user and read by the micro-controller. The clock keeps track of the year, month, day, hours, and seconds. The real-timeclock is backed up by a battery and can maintain data for a minimum of 9 years from the dateof manufacture.

4-6

Theory of operation


Motor drive control

The motor drive controls the brushless DC motor that drives the piston. This circuitry allowsthe micro-controller to control the motor position, speed, and direction. The motor driveincludes protective fault detection and safety logic. The motor drive will function with apower input of 11V DC to 32V DC. (See your ventilator’s back panel for specific voltageranges.)

System analog monitoring circuitry

The System Analog Monitoring circuitry converts the following analog signals to a voltagethat is within the range (0 to 5V DC) of the micro-controller’s internal analog to digitalconverter (ADC) and the external serial A/D converter circuits, as described here:

• Primary pressure sensor• Secondary pressure transducer• Primary flow sensor• Power bus sense • Internal battery voltage• Internal battery current• External battery voltage• Battery charger current• Piston motor current• Amplified flow transducer• O2 flow sensor• +10 voltage reference sense• Alarm power voltage sense• ADC +5 reference• External battery current

4-7

Theory of operation


System analog control

The system analog control circuitry converts micro-controller digital data into analog signalsfor controlling the following ventilator systems:

The Panel Meter Control — is a 0 to 1 milliamp source and corresponds to patient pressuresof -10 to 100 cmH2O/hPa.

The Exhalation/ PEEP Valve — requires linear control of its Voltage Sensitive Orifice(VSO) Valve. The Exhalation/PEEP valve is normally an open valve, and the failsafe state isopen. The watchdog circuitry provides a redundant means (separate from the micro-controller) to remove power from the Exhalation/PEEP valve.

The Piston Oxygen Blender Control — is normally a closed valve. The failsafe state isclosed. The watchdog circuitry provides a redundant means (separate from the micro-controller) to remove power from the Piston Oxygen Blender Valve.

Watchdog

The ventilator includes two watchdog circuits that detect micro-controller faults. Whenactivated, these circuits cause the ventilator to enter the safe state. The safe state is defined as

• PEEP valve open • Oxygen blender valves closed• Audible alarm activated • Piston stopped• All LEDs activated

4-8

Theory of operation


Digital inputs

The digital input section provides the micro-controller with the means to monitor the status of• Input switches and the• Watchdog circuit

Digital outputs

Through the digital output circuitry, the micro-controller controls the on/off status of thefollowing systems:

• Battery charger• Modem controller• Remote alarm and nurse call port• Audible alarm • Alarm and power LEDs • LCD (Alphanumeric) display. In addition to turning the LCD on or off, the micro-con-

troller also sends the information displayed on it. The LCD is illuminated duringupdating of the ventilation parameters and during the initial 30 seconds of an alarmcondition.

• External battery• Power supervisory circuit

4-9

Theory of operation


Micro-controller I/O ports

The micro-controller I/O ports handle the following signals:• End-of-travel sensor• Piston motor fault• Ventilate/standby mode input• Battery charger level control• Power bus low power input• 24V battery status input• Remote alarm reset input• Memory watchdog active

System power

The ventilator can draw its power from an external source (either AC or a battery) or from theinternal battery. The power system provides several DC voltage levels for the ventilatorcircuitry and the internal battery charger. The power system provides status signals to themicro-controller to indicate which source is active. The power system also provides analogsignals that the micro-controller can use to determine the following:

• internal battery voltage and current • external DC input voltage • battery charger current• status of the battery charger control lines

Refer to Figure 4-3: Power supply inputs and Table 4-1: Power sources and priority levels on page 4-10.

4-10

Theory of operation


Figure 4-3: Power supply inputs

Table 4-1: Power sources and priority levels

Power Source Priority Voltage/Frequency Range

AC Line Power or a DC to AC Power Inverter

1 100 to 240V AC / 50 to 60 Hz (No switch setting or jumpers required)

External DC Power 2 See your ventilator’s back panel for specific voltage ranges.

Internal Battery 3 23.2 to 29.0V DC / NA

POWER BUS

4-11

Theory of operation


The Achieva will operate properly when all three sources are connected simultaneously andwill switch automatically between the three power sources. Switching will occur according toavailability and priority of the power source and will not cause an interruption in ventilatoroperation.

The ventilator will operate from the external power source until the external power source isno longer within the operating range.

The ventilator will operate from an external power source (AC/DC Power Supply or ExternalDC Power Source) when the internal battery is completely depleted or absent.

There is no on/off switch for the AC input. Plugging and unplugging the AC power cord is thecorrect way to connect/disconnect AC power. The AC power lines are fused with “Slo-Blow”type fuses rated at 3.15 amperes. The AC supply output voltage is 24V DC. The power supplyis protected from short circuits on the output—no damage will result when a dead short isapplied to the output.

Natural convection and heat-sinking are used to cool the power system.

External DC Input — The ventilator will accept an input of 11 to 32V DC through a separateinput connector. The unit will start up if the input voltage is at least 12.7 ±.2V DC, and it willoperate down to 11.8V DC. (See your ventilator’s back panel for specific voltage ranges.)

While the unit is capable of withstanding typical automotive transients, it may not withstandautomotive start up transient conditions.

The peak input current when operating at 12V DC is 6 Amps. The external DC input is fusedwith a “Fast-Blow” type fuse.

The power system senses the external DC input voltage polarity and protects itself fromdamage. If battery polarity is reversed, no damage to the system will occur. The power systemwill disconnect the External DC Source from the system.

4-12

Theory of operation


Internal Battery Input — The internal battery is rated at 24 volts. It will operate theventilator, provided no other power source is available, until its voltage drops to about 11V.The peak input current when operating at 24.0V DC is 5.5 Amps. The internal battery input isfused with a “Fast-Blow” type fuse.

Power Distribution — The Main Power Bus supplies power for the motor power drive, theauxiliary DC/DC power supplies, and the internal battery charger. The Main Power Busvoltage will be at the voltage level of the active power source. The maximum voltage is 32VDC, and the minimum operating voltage is about 10.6V DC. The Main Power Bus is capableof distributing a maximum of 6 amps.

The Internal Battery Charger — The Internal Battery Charger is operational when thepower source to the ventilator is either the External DC Source or the AC/DC Power Supply.The Battery Charger is capable of providing a bulk charge voltage level of 29.0V DC and atrickle charge voltage level of 27.6V DC. The battery charger is current-limited to 0.4 amp.The Battery Charger is capable of fully charging the internal battery within twelve hours. TheBattery Charger is automatically disabled when the ventilator is operating from the internalbattery.

4-13

Theory of operation


Power system controlFront panel control — The ventilator sequence and the START/ENTER and STANDBY keysare capable of turning system power on and off as described below.

External battery voltage indicator — The power system provides a signal to the micro-controller that indicates whether the External DC Power Source is nominally rated at 12V DCor 24V DC. See also your ventilator’s back panel for specific voltage information.

Watchdog turn off control — The power system includes an input that is used by thehardware Watchdog Timer, in conjunction with the STANDBY key, to provide a means toremove power from the system when the micro-controller has failed, and system power islatched on. If the system is operating from either the internal battery or an external DC source,and a watchdog failure activates the Watchdog Turn Off Control, pressing the STANDBY keyfor a period greater than three seconds will cause system power to be removed. If a watchdogfailure is not present, pressing the STANDBY key for a period greater than three seconds willhave no effect other than switching the ventilator to Standby Mode.

Alarm power — Alarm power is derived from one of two power sources: • unfiltered 12V DC/DC switcher voltage • unfused internal battery voltage.

The higher voltage is automatically selected. Power to the alarm is controlled in such amanner that if the system power is lost without being under micro-controller control, theaudible alarm is activated.

4-14

Theory of operation


(This page intentionally blank.)

5-1


Chapter 5: Maintenance

This chapter provides cleaning and maintenance information, a maintenance schedule, and replacement procedures for the inlet filter and fuses.

Cleaning ventilator surfaces

This section contains instructions for maintaining and cleaning the ventilator. You must alsoconsult the corresponding cleaning instructions for the various accessories used with theventilator.

WarningA ventilator patient is highly susceptible to respiratory infections. Dirty orcontaminated equipment may be a source of infection. Clean equipment isessential for successful ventilation. Be sure to wash your hands thoroughlybefore and after cleaning the ventilator or accessories.

CautionDo not sterilize the ventilator with ethylene oxide (ETO) or steam. Doing so may damage theventilator.

CautionDo not use methyl ethyl ketone (MEK), trichloroethylene, or alcohol to clean the ventilator.Doing so may damage the unit’s surfaces.

5-2

Maintenance


Frequency Clean as often as the surface becomes soiled.

Supplies Use a mild soap solution and a damp cloth.

Procedure 1. Clean with a mild soap solution and a damp cloth. Squeeze the cloth thoroughly before applying it to the unit’s surface.

2. Do not allow liquids to enter the ventilator.

Caution Never allow liquids to contact internal ventilator components. Moisture will damage the ven-tilator.

Note Contact Puritan Bennett for alternate cleaning methods.

5-3

Maintenance


Replaceable parts

CautionFailure to change a dirty filter may damage the ventilator and can void the warranty. Ablocked inlet filter may cause a setting-error alarm.

CautionDo not operate the ventilator without an inlet air filter. Using the ventilator without a filtermay damage the ventilator. Use only filters supplied by Puritan Bennett.

5-4

Maintenance


Flatpak filterThe model Y-6109 Inlet Filter (Flatpak) is a replacement part for the ventilator. Inspect the fil-ter monthly (weekly if used outdoors, in transport, or in a dusty atmosphere). Replace with anew filter when it shows signs of discoloration. The Flatpak filter is disposable; discard afterremoval. Do not attempt to wash or otherwise clean it. Do not reuse filters.

1. Twist off the retainer ring of the inlet filter (Flatpak) from the back panel of the ventilator and replace the Flatpak filter cartridge.

2. Reassemble the O-ring, Flatpak filter, and Retainer Ring as shown:

Figure 5-1: Replacing Flatpak filter

Inlet Housing

O-Ring

Flatpak Filter (Model Y-6109)

Retainer Ring (Model Y-6109-ACH)

5-5

Maintenance


Changing the fuses

A fuse may need to be replaced if the ventilator is plugged into an electrical outlet, but thecharging light is not illuminated.

The fuses for the ventilator are rated at 250V, 3.15A, 5 x 20 mm, slow blow. Replacementfuses are available from your equipment supplier or Puritan Bennett.

CautionFor continued protection against fire hazard, replace only with identically rated fuses.

WarningBefore changing the fuse, unplug the power cord.

5-6

Maintenance


The fuse holder is located above the power cord connector.

To remove the fuse holder:

1. Unplug the power cord.

2. Insert a small screwdriver into the small slot on the under side of the fuse holder.

Figure 5-2: Removing fuse holder

3. Pull upward with the screwdriver.

4. The fuse holder should pop out slightly.

5. Pull the fuse holder out.

5-7

Maintenance


6. Remove the fuses.

Figure 5-3: Replacing fuses

7. Place the new fuses directly into the fuse holder.

8. Replace the fuse holder in the ventilator. You should feel a click when it is secure.

9. Reconnect the power cord.

5-8

Maintenance


Periodic maintenance

The ventilators require preventive maintenance at a minimum of once every 6000 operatinghours, or recertification every twelve (12) months (whichever occurs first) by PuritanBennett’s qualified service personnel. The ventilator is intended to function within itsspecified standards if the service schedule is followed.

To display the ventilator operating hours:

10. Press the MENU/ESC key.

11. Press the up or down arrow key until the display screen says:

Ventilating hours sincelast maintenance: XXXXX

Achieva ventilators are warranted against defects in workmanship and materials. The fullwarranty provides details. Do not make any service repairs on this equipment during the statedwarranty period. Any unauthorized work immediately voids the warranty. If you needinformation or assistance, or if the information in this manual is insufficient, contact PuritanBennett at this number:

800.255.6774

Puritan Bennett does not recognize the owner of a ventilator as an authorized servicerepresentative. Puritan Bennett will not be liable for any repairs attempted by the owner. Anysuch attempted repairs, other than specified non-warranty repairs, void the warranty. Parts andlabor costs incurred by the owner will not be reimbursed by Puritan Bennett.

Before returning any device to Puritan Bennett, you must obtain a Return AuthorizationNumber by calling Puritan Bennett at the number listed above.

6-1

Schematics


Chapter 6: Schematics

This chapter provides the schematic diagrams for the logic board and the power board, and assembly drawings.

6-2

Schematics


Schematic 6-1: Logic board—notes for schematics

6-3

Schematics


Schematic 6-2: Logic board—microprocessors

6-4

Schematics


Schematic 6-3: Logic board—memory/address select

6-5

Schematics


Schematic 6-4: Logic board—switch inputs

FOR

FOR U44

6-6

Schematics


Schematic 6-5: Logic board—LED indicators/controls

6-7

Schematics


Schematic 6-6: Logic board—miscellaneous digital I/O

6-8

Schematics


Schematic 6-7: Logic board—alarm and monitor circuits

6-9

Schematics


Schematic 6-8: Logic board——communications driver

6-10

Schematics


Schematic 6-9: Logic board—pressure sensor circuits

0.1uFC313

-5V

12V

0.082uF

C100

NT267

VSSA

AN5

AN7AN6

AN1AN2AN3AN4

BAT_CHRG_I 6 7

MAD1103P

IN8IN7IN6IN5IN4

VSSA

NT541NT540

NT542 13 10

14NC

NCNC

GND

+10.0V_REF_SNSAMPL_FLO

1211 9 8

IN3IN2IN1

OVER VOLTAGE PROTECTION FOR uP ADC

VDDA

NT539

U30

4 1

NCVCC

INT_BAT_VPRI_FLOPRI_PRESS

5 3 2

VSSA

VSSA

NT277

C326

0.1uFR22410.5K

LM358

VSSA

4 2

31

90.9KR223

12V

8U46A

7

VSSA

6

0.1uF C311

VSSA

LM3584

-1v_REF

5

8U32B

12V

VSSA

PXDCR2_OUT+

PXDCR2_OUT-

PXDCR2+ C312

1F27

NT272

0.1uF

NT279

2

VSSA

0.1uF

C321

95.3K

R71

NT268NT269

1

F26

2

NT270

100K

R70

VSSA

NT543 NT262NT545

0.1uF

4

0.1uF

VSSA

C310

NT263

2

3

U32A8

LM358

1

12V

VSSA

0.1uFC95

REF_PWR

VSSA

3 4

15V 2 1

6VOUTTRIM

MAX674

GNDTEMP

5

N.CN.C

U31

VINN.C

87

12V

100K

R69

PXDCR1_OUT

PXDCR1+

200R66

VSSA

0.082uF

C101 2

3

NT264 NT265

VSSA

+10.0VREF

C94

NT544NT404

NT261NT417

VSSA

NT276

VALID FROM -20 TO +120 cmH20

10.0K

R67

-5V

NT273

4 5

301

1 2

R65

AD620

U29

6

7

8 3

NT271

NT274

12V

95.3K

Vout = .0391*PBACKUP PRESSURE SIGNAL

0.1uFC98

Vout = 0.0389*P + 0.633VALID FROM -20 TO +120cmH20

LM358

R68

4

1

1.0K

R64

NT266

U25A8

+1V_REF

1.0uFC99FOR U32

VSSA

0.1uF 25V

2CND_PRESS

VSSA

0.1uFC92

FOR U25

ANX0

12V

C105

25V

-5V

1.0uFC107

0.1uFC104

FOR U25

VSSA

VSSA

0.1uFC96

12V

25V1.0uFC97

V+12VVDD +5VVCC

AN0

+10.0V_REF

PRI_PRESS

NT278

FOR U29

-5V

25V1.0uFC106

0.1uFC103

VSSA

VSSA

FOR U29

DGND

GND

0.1uFC93

12V

25V1.0uFC91

NT443

VSS VSSA

NT444

V-

NT441 NT442

6-11

Schematics


Schematic 6-10: Logic board—flow sensor circuits

NT288

FLSC2_OUT

VSSA

88.7K

0.018uFC118

R80

100K

VSSA

NT295

FLSC2+NT293

R84

100KR78

NT292

R237100K

4

-5V

LM358

7

8

6

5

NT28712V

U34B

VSSA

7+10.0V_REF

VSSA

VSSA

4 6

5

8

-1V_REF

12V

U46B

0.1uFC314

LM358FLSC1_OUT

FLSC1+

NT282

NT281

VSS

110K

LM358

-5VR79

4 6

7

VSSA

1.0K

0.1uFC113

O2_FLOW ANX2GND VSSA V-

-5V

+5V

25V1.0uFC244

VSSA

-5V

VSSA

12V

0.1uFC242

VSSA

12V

VSSA

25V1.0uFC115

0.1uFC109

88.7K

1.0K

R72

U35B

12V

8

5

NT296

VSSA66.5K

VSSA

R76

R74

205k

R75-5V

NT291

100K

0.018uF

100K

R85

C117

R82

NT289

U35A NT290

LM358

24

3

8

1

12V

0.1uF

VSSA

DGND

VDDVCC

FOR U35

C111

AMPL_FLO AN4

NT298FOR U35

NT285

-5V

12V

0.018uF

VSSA

R77

NT286

100K

C120

NT283

R83

2

3

LM358

110K

R86

4

1

U34A8

1.0K

R73

NT284

100K

R81

VSSA

0.1uFC112

PRI_FLO AN1

FOR U34

FOR U34

V+12V

0.1uFC245

25V1.0uFC243

C1140.1uF

C110

25V1.0uF

6-12

Schematics


Schematic 6-11: Logic board—primary ADC circuits

NT311

VSSA

100K

R89

49.9K

CHGR_I_SENSE

NT308

0.1uFC127

-5V

4 6

NT309

8

5

12V

LM3581.0K

NT310

U40B

7R88

-5V

VSSA

14.3KR90

NT306

20.0K

0.1uFC123

R93

LM358

R96

NT300

NT299

+10.0V_REF

INT_BATT_VSNS-

INT_BATT_VSNS+

0.1uF

12V

4

8

6

5

NT307NT305

7

U36B

VSSA

402K

R95

402K

R94

C124 100KR92

NT302NT301

VSS

BAT_CHRG_I

VSSA

0.1uFC126

AN3

GND VSSA V-

-5V

+5V

VSSA

VSSA

12V

INT_BAT_V

0.1uF

C122

100K

R91

NT303

4

-5V

LM358

8

2

3

12V

U36A

1

VSSA

1.0K

0.1uFC125

NT304

R87

DGND

VDDVCC

FOR U361.0uF25V

C248

AN2

FOR U36

0.1uFC246

V+12V

0.1uFC249

25V1.0uFC247

6-13

Schematics


Schematic 6-12: Logic board—serial ADC

VSSA

EXT_BAT_VPIST_MTR_I

100k 6

ALARM_PWR_V

PWR_BUS_V

+10.0V_REF

VSSA

3.4V_WITH_24V_INPUT

4.99K 0.1uF

VSSA VSSA

VSSA

4.99KR97

C128

2.5V_WITH_10V_INPUT

R104

15kR103

R9834.0K

VSSA

NT328

0.1uFC140

0.1uFC129

1.0KR101

VSSA

NT331

LM358

-5V

4

1.0KR102

0.1uFC138

VSSA

1.0K

0.1uF

NT329

C136

NT315

BLWR_I_SENSE

MTR_CURRENT

ANX2

ANX3

ANX1

ANX0

NT314

VSSA

NT319

0.082uF

NT326

NT325

R106

VSSA

NT318

100k

R105

C139LM358

115K

8

5

U39B

7

12V

0.082uFC262

R225698KR221

-5V

R100

NT324 NT323

VSSA

0.1uFC135

NT320 4 2

31

12V

8U39A

1.0K

R99

NT321NT322

NT313

NT317NT316

R107

VDDA

332

VSSA

0.1uFC141

25V10uFC142

2ND_PRESSINT_BAT_I

O2_FLOW

0.1uFC137

PWR_BUS_SNS+10.0V_REF_SNS

ALRM_PWR_V

BLWR_MTR_I

VSSA

VDDA

NT330

AN5NT549

NT548NT547

NT546

PWR_BUS_SNS

O2_FLOW

ALRM_PWR_V

BLWR_MTR_IPIST_MTR_IEXT_BAT_V

2ND_PRESSINT_BAT_I

2ND A/D OVERVOLTAGE PROTECTION

4 5IN2VCC

MAD1103P

14GND

6

13 10

NC

NCNC

NC

1112

IN8IN7

9 8 7

IN6IN5IN4IN3

1

U37

3 2

IN1

1.0K12V

1.0K

VSSAVSSA

VDD

GND

VSSA

12V

DGND

VCC

VSS

V-

V+

+5V

VSSA

FOR U39

25V1.0uFC143

0.1uFC134

SCKMOSI

PCS0MISO

NT336

NT334

CS 7

AN5

12 11

ANX10

ANX8

NT418

VSSA

R308 R325

NT419

MC145051

AN10 VSSAN9

9AN8

8AN7AN6

VAG1013

14

AN1

6 5

AN4

4AN3

3AN2

DOUTDIN

SCLK

VREF

2 1

AN0EOCVDD

1617

15

18

VDDA1920

U38

FOR U38

VSSA

1.0uF

FOR U39

25V

NT337

C133

VSSA

C132

-5V

0.1uF

C1300.1uF

NT420NT335VDDA

1.0uF25V

C131

6-14

Schematics


Schematic 6-13: Logic board—serial ADC circuits

+10.0V_REF

EXT_BATT_VSNS-

EXT_BATT_VSNS+

0.1uFC147

0.1uF

U41B

90.9K

VSSA

R118

100KR114

-5V

10.0KR117

6

NT351

5

4

LM358

8

7

NT35012V

NT348

69.8KR120

69.8K

0.1uFC148

VSSA

C149

R11510.0K

NT345

10.0KR116

-5V

LM358

U41A

1 2

4

3

8NT344

+1V_REF

INT_BATT_ISNS-

INT_BATT_ISNS+

NT347

R119

NT352

NT339

R1111.0K

1.0KR110

NT346

NT340

12V

0.1uFC145

66.5KR109

NT338

4

LM358

-5V

U40A

2

3

8

1

12VNT341

66.5KR112

DGND-1V_REF

EXT_BAT_V

0.1uF

VSSA

C146

1.0KR113

ANX3

0.1uF1.0uF

GND VSS VSSA

VDDVCC +5V

-5V

12V

25V

V-

V+

FOR U41 C260

VSSA

FOR U41

VSSA

0.1uFC258

C261

25V1.0uFC259

0.1uFC144

VSSA

1.0KR108

INT_BAT_I ANX1

12V

-5V

FOR U40 C256

25V1.0uF

C2570.1uF

VSSA

VSSA

FOR U40

0.1uFC254

12V

C255

25V1.0uF

6-15

Schematics


Schematic 6-14: Logic board—DAC circuits

MTD3055EL1

.01uF

MTD3055EL1

0.8_OHMS

-5V

12V

4

8

NT358

SGND

SGND

0.25W

0.8_OHMSR127

1.0KR128

SGND

VSSA

25V0.33uF

49.9KR129

C330

1.0KR312

NT379

-5V

Q6

LM358

4 6

5

12V

8

7

NT376

U47B

VSSA

VSSA

100R130

-DISABLE_VLVS

R229100K NT366

VSSA VSSA

R313

VSSA

NT375

SGND

0.25W

0.4_OHMS

R124

1.78K

Q5

1.78KR228

49.9kR123

25V0.33uFC329

2NT372

3

NT368

BD9 D 4 15

332

R230

-CS_FE600VSSA

NT364

NT365

A0 OUTCA0

DGND

LDACWR

A1

7

A1

8 17

18

AGND3S

SV 6

OUTD23

D7D6D5D4D3D2D1

BD13 11

BD15BD14

19

9 10

BD12BD11BD10

12 13 14

2

OUTB

OUTA

24

1

REFDREFCREFB

2021

NT353

VDA

A[0..18]

BD[8..15]

MAX505_DAC

D0

U43

BD8 16

2

REFA

2

DV

5

VDDA

-5V 49.9k

NT362

NT367

NT356

1.37K

VSSASGND

0.33uF25V

R304C328

8

2

3

4

LM358

1

12VNT354

U42A

R303

NT355

12V_UNFIL

.001uF

NT380

SGND

C318

NT377

PN2222Q8

C334

R305

NT369SGND

.001uFC317

.01uF

PN2222

LM358

U47A

1

NT370

.01uFQ7

NT361

SGND

NT371

0.25W

C332

12V_UNFIL

5

SGND

MTD3055EL1Q10

-5V1.37K

R314

6

LM358

4

7

12VNT357

U42B8

NT359

12V_UNFIL

MBRS1100T3D9

NT378 BLOWER_O2-

BLOWER_O2+ SGND

0.1uFC335

25V10uFC336

MBRS1100T3D13

MBRS1100T3

NT373

D8

PN2222Q12

NT425

C331

12V_UNFIL

FOR U42

PISTON_O2-

C264

-5V

0.1uFC263

25V1.0uF

VSSA

FOR U42

PISTON_O2+APISTON_O2+B

1.0uFC156

VSSA

0.1uF 25V

12V

C157

PEEP_CNTRL-

PEEP_CNTRL+

BLWR_SPEED

MBRS1100T3

.01uF

.001uFC322

NT374

PN2222Q9

D10

NT360

C33312V_UNFIL

FOR U43

C151

VSSA

0.1uFC152

25V1.0uF

VDDA

GND

VCC

DGND

VSS

VDD +5V

VSSA V-

12V V+

6-16

Schematics


Schematic 6-15: Logic board—connectors and EMI filters

BACKGROUND MODE/DEBUG CONNECTOR

AC_PWR_ACTIVE

PGP2PGP1PGP0

GND 43

D14

NT576NT575

MDM_INTMDMPWR

4049

10K

GND

R323

GND GND

0.1uFC237

GND

47uH

PWR_BUS_V

0 0

5 4

U10B

NT583

-IRQ4

NT175L11

0.1uF

C239

-RD_MODEM

4.7uF_50VC236

NT401

-CS3

10uF_35V

GND

C238

-WR_MODEM

NT462

GND

3029

NT387

40393837363534333231

A1A2

A0

D15

2221

282726252423

2019181716151413

NT388

NT385MODEM_RUN

NT386

LCD CONNECTORS

BD14

LCD_LED+

BD[8..15]

D[0..15]

VCC

A[0..18]

L12

10uH

GND

NT383

1513

LCD_R/-W

NT382

CONTRASTLCD

R220

500_POT

NT406

GND3

BD12BD10BD8

11975

J22

1

J20

321

BD15

LCD_LED-

MODEM INTERFACE CONNECTOR

D13D12D11D10D9D8

1211109

8765

JP3

4321

1614

GND

10K

LCD_ENABLELCD_D/-I_SELECT

VCC4

BD13BD11BD9

1210

86

2

654

R326

VCC

GND-RESET

1086

975

JP5 R321

FET_SUPPLY

EXT_BATT_VSNS+

INT_BATT_ISNS+

BLWR_I_SENSE

CHGR_I_SENSE

INT_BATT_VSNS+

ANALOG TO POWER BRD CONNECTION

NT452

BLWR_SPEED

EXT_BATT_VSNS-

INT_BATT_ISNS-

MTR_CURRENT

INT_BATT_VSNS-

REF_PWR

PWR_BUS_VFET_SUPPLY-

NT405 NT446

65

1413

201918171615

1211109

87

INT_BATT+

JP4

4321

NT454NT463

PGP4

REV_BATT_LED_A-ALARM_WDOG

NT411

EXT_PWR_ACTIVE

-PC4

-PC6-PC5

PGP6-PC3

NT451NT450

-MTR_ENABLE

MTR_COMM4MTR_COMM3

EXT_24V

MTR_COMM2MTR_COMM1

STNDBY

VENTILATE_SW

+EXT_BATT_OFF

NT453+4V_INT

uP_HOLDON

NT381

NT403NT402

NT456

-WR

J1

21

NT458NT457

-VENT_MODE

-RMT_AUDIOOP_PANEL_PWR

STANDBY_SW1

+BLOWER_ON

-HI_CHRGR_LVL+CHARGER_ON

1615

2423

292725

302826

211917

222018

MTR_HALL3MTR_HALL2MTR_HALL1MTR_FLT

87

13119

141210

531

642

ENTER_SW

100K

-IRQ6

NT455

RUN_MODE

NT408

PCLK

NT459NT449NT447

NT572DIGITAL TO POWER BRD CONNECTION

NT573

IPIPE0IPIPE1

FREEZE-BKPT

NT466NT465

-BERR

NT467

25V

VSSA

NT397

GND

NT398

F10ANALOG GROUND FILTER

1 2

VSSA

VSSA

VSSA

NT393

NT391

-5V_UNFIL

10uH

L8

+12V_UNFIL

10uH_2

NT396

L5

10uH

VCC

L6

SGND

0.1uF

C208

0.1uF

C207

-5V @ .030A

F11

10uFC199

2 1

VSSA

F12

25V10uFC198

12V @ 0.85A 2 1

NT570

-5V

NT569 NT395

12V

VSSAVSSA

25V

VSSA

1.0uFC195

16V100uFC197

ANALOG POWER FILTER

GND

F8 1 2

VSS

VSSA

25V10uFC213

NT394

0.1uFC196

NT392

VDDA

VCC

NT399

GND

+5V_UNFIL

10uH

L7

14 13

NT509SGND

NT389

121086

11975

J3

42

31

F152 1

GND

VCC

GND

+5VVDD

0.1uF

C206

25V10uFC200

F9 2 1

25V10uFC214

DGND

NT400

GND GND

25V10uFC215

25V10uFC216

5V @ 0.280A

12V_UNFIL

NT390

NT510

+12V_UNFIL

-5V_UNFIL

+5V_UNFIL

+5V

-5V_UNFIL

INPUT POWER CONNECTORNT460 NT461

6-17

Schematics


Schematic 6-16: Logic board—connectors and modem port

109GND

EOT SENSOR CONNECTOR

EOT_LED+EOT_LED-

EOT_IN-EOT_IN+

F23

4

NT550 65

DGND

NT551

J4

321

NT552

ANX10ANX8

AN7AN6

RS232 CONNECTOR

RD-TD

DCD

-DTR 1

.001uFC319

RS485_B

RS485_A

NT415

1

1

2

F33

F32 2

7531

28642

J31

RI

DSR

CTS-RTS

.001uFC320

GNDGND

REMOTE ALARM CONNECTOR

-REMOTE_RESET

-RMT_AUDIBLE_ALRM-RMT_VISUAL_ALRM

NT416

NT567

GND8VREM

3

87654

J10

21

PISTON_O2+BPISTON_O2-PISTON_O2+A

BLOWER_O2-BLOWER_O2+PEEP_CNTRL-

864

753

PEEP_CNTRL+

J14

21

ALARM1-ALARM1+

ALARM CONNECTOR

21

J9

ANALOG METER

METER-METER+

21

J18

VSSGND

+5VVDDVCC

NT562VSSA

6543

J32

21

VSSA

PXDCR1_OUT

PRESS_LIMIT_SW

J26

UP_SWMODE_SW

VCC

VOLUME_SWINSP_TIME_SW

NT475

4

65

321

NT471NT469

NT473

NT470

OXYGEN_SWSENSITIVITY_SW

HIGH_PRESS_SWLOW_PRESS_SW

NT558

NT557

NT553

4

65

321

CONNECTORS TO LCD/SWITCH OVERLAY

NT480NT478 NT479

J27

NT481

-BAT_CHRG_ONBATT_TEST_SW

VCC-ASSIST_SPONT

-ALARM_CONTROL

PRIMARY PRESS TRANS 2ND PRESS TRANS

VSSA

PATIENT FLOW TRANS

FLSC1_OUTFLSC1+

PXDCR1+

NT561

NT560

PISTON O2 FLOW TRANS

87

16141210

1513119

531

642

FLSC2_OUTFLSC2+

PXDCR2_OUT+PXDCR2_OUT-

PXDCR2+

NT559

NT487

-PWR_SWITCH_OVER-SETTING_ERROR

-HI_PRESS

-LOW_POWER

-LOW_PRESS

NT489

1VCCMENU_ESC_SW

PEEP_SW

DOWN_SWBPM_SW

PRESSURE & FLOW TRANSDUCER CONN

J30

56

432 VENTILATE_SW

STANDBY_SW1

STANDBY_SW2

OP_PANEL_PWRENTER_SW

NT554NT512

NT483

ALARM_SIL/RESET_SW-AC_ON

-NO_OXYGEN

NT485

NT468

NT484

J28

NT490

654

NT482NT486

NT511

654

-EXT_BATT_ON-INT_BATT_ON

CONNECTORS TO LED/SWITCH OVERLAY

J23

321

J24

321

NT555

4

65

321

J29

NT488

VCC 654

J25

321

6-18

Schematics


Schematic 6-17: Power board schematic notes

1. ALL RESISTORS ARE IN OHMS, 1/10W, 1%

ALL CAPACITORS ARE IN MICROFARADS

NOTES: UNLESS OTHERWISE SPECIFIED

ANALOG SYSTEM

VDDA ANALOG CKTS +5V

V+ ANALOG CKTS FILTERED 12V

12V ANALOG CKTS FILTERED 12V

-5V ANALOG CKTS FILTERED -5V

VSSA ANALOG GND

POWER SYSTEM

PGND POWER ENTRY GROUND

SGND SWITCHER SUPPLY GROUND

MGND MOTOR GROUND

MPWR MOTOR POWER

+4V_INT ALWAYS ACTIVE 4 VOLTS

12VUNFIL DC-DC 12V OUTPUT

MOUNTING HOLES - HOLE SIZE 0.156"

HOLE CLEARANCE 0.5"

HOLE CLEARANCE NONE

HEATSINK MOUNTAIN HOLES - HOLE SIZE 0.156"

2. INTERNAL +4V POWER SUPPLY IS ACTIVE AS

LONG AS INTERNAL BATTERY IS PRESENT

3. 332 OHMS RESISTORS USED TO IMPROVE

TESTABILITY COVERAGE

4. RELATIONSHIP BETWEEN HALL SENSORS AND STATOR PHASING

0 1 1 0 - + 1 3

0 0 1 - 0 + 2 3

1 0 1 - + 0 2 1

1 0 0 0 + - 3 1

1 1 0 + 0 - 3 2

0 1 0 + - 0 1 2

5. SWITCHING FREQUENCY = 52KHz

REFERENCE DESIGNATORS NOT USED

D16, 21, 47, 55, 57

F1

C75, 76, 77, 78, 79

HOLE CLEARANCE NONE

HEATSINK MOUNTAIN HOLES - HOLE SIZE 0.095"

GND DIGITAL LOGIC GROUND

DIGITAL SYSTEM

VSS DIGITAL LOGIC GROUND

+5V DIGITAL LOGIC +5V

DGND DIGITAL LOGIC GROUND

VDD DIGITAL LOGIC +5V

VCC DIGITAL LOGIC +5V

VOLTAGE DEFINITION TABLE

VEE DIGITAL LOGIC GROUND

FIDUCIALS MARKINGS

S3 S2 S1 PH_A PH_B PH_C SINK SOURCE

1 111 11 1111

1

4

5

6

147

1

1

1 1

5

6

7

84

5

6

7

84

5

6

7

84

1

1

2

8

7

1

1

1

1

2

3

147

1 1

1

12

13

11

147

1

M3

ML

M4

ML

M13

M

M11

M

M12

M

R170

100K

M10

M

M18

M

R169

100K

M17

M

R81

1.0K

M15

M

R173

1.0K

M14

M

M9

M

U20B

74HC32D

M8

M

R172

1.0K

M16

M

R174

1.0K

M6

M

R171

1.0K

M7

M

U18B

LM393M

+

-

U17B

LM393M

+

-

U12B

LM358M

+

-

FD1

ISO1-1

PS2502-2

FD2

M5

M

FD3

U20A

74HC32D

FD4 FD5

M1

ML

U7D

74HC32D

M2

ML

R118

1.0K

FGND PGND

FGND

FGND

SGND

PGND

PGND

PGND

PGNDPGND

PGNDPGND

SGND

VCC

12VUNFIL

PGND

VCC

+5V

SGND

6-19

Schematics


Schematic 6-18: Power board—motor drive

MOTOR_PHASE_B

MOTOR_PHASE_C

MOTOR_PHASE_A

1W

TOGETHER NEAR JP3

50V

12

O104

O115

O126

O137

O2012

O2111

VDD

16

A12

B13

E11

A214

B213

E215

O2210

O239

VSS

8

VCC

1

FAULT8

CA-11

VSS

12

VB128

MO127

VS126

VB320

MO319

VS318

LO116

VB224

MO223

VS222

MN12

MN23

CAO10

MN34

LN15

LN26

LN37

LO215

LO314

NC117

NC221

NC325

ITRIP9

VS013

1

2

3

4

12

12

12

12

12

12

12

12

12

3

2

1

84

5

6

7

84

12

12

R108

1.50K

R190

2.0KR175

10K

D8

MURS120T3

R109

1.50K

C3

0.01

R186

20.0K

R184

2.49K

D9

MURS120T3

R110

1.50K

C106

1.0/35V

+

R94

100

D67

BAS16LT1

D69

BAS16LT1

C8

1.0/35V

+

Q1

MTP50N06ED2

MBRS1100T3

U2

MC14556B

C9

1.0/35V

+

U1

IR2130

C10

1.0/35V

+R97

100

JP1

TEST POINTS FOR MOTOR

R98

100

C16

0.1

R95

100

C2

0.1

R96

100

C13

0.01

D3

MBRS1100T3

Q4

MTP50N06EC4

0.01

D1

MBRS1100T3

R9

10

R74

20.0K

R4

47.5

D4

MBRS1100T3

C12

0.01

Q5

MTP50N06E

R13

0.05

C11

0.01

R7

47.5

R93

1.0K

Q6

MTP50N06E

C95

0.1

Q3

MTP50N06E

R11

10

C1

0.1

R6

47.5

R92

1.0K

C5

0.01

R187

5.36K

R91

1.0K

U21A

LM358M+

-

R8

47.5

R5

47.5

U21B

LM358M

+

-

R188

1.0K

D6

MBRS1100T3

C14

1200

+

R176

10K

R185

1.05K

C7

10/35V

+

D5

MBRS1100T3

R177

10K

C15

1.0/35V

+

R3

47.5

D68

BAS16LT1

R119

100K

C107

0.01

C6

0.1

R189

63.4K

R10

10

Q2

MTP50N06E

D7

MURS120T3

MGND

MGND

MGND

MGND

MPWR

VCC

MGND

MGND

12VUNFIL

MGND

VCC

MGND

VCC

MGNDMGND

VCC

MGND

MGND

VCC

MGND

MGND

12VUNFIL

MPWR

MGND

MGND

MPWR

MGND

MPWR

MGND

MGND

MGND

MGND

-5VUNFIL

RED

HALL_S3GRN

BLK

MTR_CURRENT

-PC4

HALL_S2YEL PGP1

HALL_S1BLU PGP0

-PC3

-MTR_ENABLE

WHT

PGP2

-PC6

-PC5

-IRQ6

6-20

Schematics


Schematic 6-19: Power board—power On/Off circuits

HDWR 2.3 SEC POWER DOWN

1 SEC POWER UP HOLD

4.7V

15V, 15W

PCLK

FOR U8FOR U7 FOR U6

VENTILATE SWITCH LATCH

FET CHARHE PUMP SUPPLY

27V

12

CK15

RC14

VSS8

+T12

Q10

Q9

VDD

16

-T11

R13

12

12

12

12

12

VIN8

FDBK7

SHTDN3

TAP6

SENS2

VOUT1

ERR5

GND4

2

3

1

147

3

4

6

5 12

12

CK1

RC2

VSS8

+T4

Q6

Q7

VDD

16

-T5

R3

9

10

8

147

8

9

10

147

C1+1

C1-7

C2+6

C2-2

VCC

8

VO5

PR3

GN

D4

12

1

2

3

147

12

12

12

1 2

4

5

6

147

11

12

13

147

1 2

12

5

6

4

147

R115

100K

C26

0.1R133

100K

U6-2

CD4538

D63

MMSZ5230BT1

D18

BAS16LT1

D17

BAS16LT1

D15

BAS16LT1

R34

1.33M

D24

1SMB5929BT3

C27

0.1

R40

10K

C29

0.1

C42

0.1

C25

0.01

R114

49.9K

C37

0.1

D23

MMSZ5254BT1

U9

LP2951ACM

R90

332

U8A

74HC02

ISO1-2

PS2502-2

C38

1.0/35V

+C41

1.0/35V

+

D22

BAS16LT1

R29

100K

C40

1.0/35V

+

C28

0.01

D56

BAS16LT1

R30

100K

R32

100K

R138

1.0K

R38

10K

R42

499_1W

R41

1.0M

C35

1.0/50V

+

R35

768K

C84

0.01

D19

BAS16LT1

U6-1

CD4538

R135

332

U7C

74HC32D

R28

100K

U8C

74HC02

U5

MAX622

C82

0.01

D20

BAS16LT1

C36

10/35V+

R101

20.0K

U7A

74HC32D

C39

0.1

R37

2.21K

R36

453K

R128

100K

R99

100

C32

3.3/16V

+

C83

0.01

R137

1.0K

C96

0.1

C34

3.3/16V

+

C33

3.3/16V

+

C31 0.047

R102

20.0K

U7B

74HC32D

U8D

74HC02

R33

590K

R39

10K

R127

100K

R31

100K

R43

2.0K

R136

1.0K

C24 0.047

C81

0.01

C30

1.0/35V

+

R100

100

U8B

74HC02

+5V

PGND

PGND

+5V

+5V

+4V_INT

PGND

PGND

+5V

PGND

PGND

PGND

+5V

PGND

+5V

+5V

PGND

PGND

PGND

+5V

+5V

PGND

+5V

PGND

PGND

+5V

PGND PGNDPGNDPGND

PGNDPGND PGND

PGND

PGNDPGND

PGNDPGND

PGND

FET_SUPPLY

PGND

PGND

+5V

PGND

+5V

PGND

+5V

+4V_INT

PGND

PGND

PGNDPGNDPGND

STNDBY

UP_HOLDON

-ALARM_WDOG

COMBINED_PWR

STANDBY_SW1

ENTER_SW

SW_SUPPLY+

VENTILATE_SW

-VENT_MODE

VENT_MODE

PWR_BUS

FET_SUPPLY-

6-21

Schematics


Schematic 6-20: Power board—switching power supplies

15V

29.0VDC/0.5Amps MAX

FOR U12

15V15V, 15W

5V @ 0.280A

5V @ 0.280A

BATTERY CHARGER SUPPLY

INPUT 11V MIN TO 35V MAX

CHARGER CURRENT LIMIT

CURRENT LIMIT @ 0.5 AMP

CHARGER CURRENT SENSE

VO = 3.25VDC @0.5 AMP

100V

100V

600V 4A

600V 1A

1 2

12

3

4

14

7

10

11

12

3

2

1

84

FB2

COMP1 IN

5

GN

D3

SW4

3

4

6

5

12

11

22

FB2

COMP1 IN

5

GN

D3

SW4

12

1

12

12

12

12

12

4

6

14

7

10

11

1

2

3

12

1

2

8

7

R52

499

C63

0.01

D34

1SMB5929BT3

D27

BAS16LT1

C45

0.1

D29

MURS120T3

R53

1.3K_.25W

C49

1.0/50V

+

C47

4.7/50V

+

D37

MBR3100

R61

6.19K

T1

R51

499

C85

0.1

C57

820/35V

+

D32

MURS120T3

D31

MDRD360

U12A

LM358M

+

-

R44

1.50K

R103

24K_1W

L3

10uH_1

D38

MURS120T3

L5

47uH_4

D26

MURS120T3

C54

1.0/35V

+

C64

4.7/50V

+

C44

10/35V

+

U11

LM2577T-ADJ

D58

MURS160T3

FS2

3.15A

R45

2.21K

ISO2-2

PS2502-2

L6

47uH_4

C56

0.047

C46

1.0/50V

+

R47

3.74K_.5W

C52

100/50V

+

D30

MDRD360

F2

C58

1.0/35V

+

C66

1.0/35V

+

C48

4.7/50V

+

U10

LM2577T-ADJ

D28

BAS16LT1

C43

0.1

R116

1.0M

D35

MUR460

L4

47uH_4

R130

100K

Q7

MTP75N05HD

NT217

C65

0.1

R58

10K

R49

1.62M

R129

1.62M

R88

1.0K_POT

C59

100/50V+

R46

7.50K

C61

0.047

R48

100K

R54

16.9K

R63

49.9K_.25W

R57

100K

R59

165K

C53

100/50V

+

R104

10K

C62

0.1

R50

0.05_.5W

D25

MBRS1100T3

C60

0.1R62

2.0K

D60

MMSZ5245BT1

C50

0.1

D33

MMSZ5245BT1

T2

R55

64.9K

D36

MBRS1100T3

C55

0.047

R60

49.9K

R89

64.9K

ISO2-1

PS2502-2

C51

1500/35V

+

FET_SUPPLY

12VUNFIL

SGND SGND

SGND

SGND

SGND

SGND

SGND

SGNDSGND

SGND

SGND

SGND

12VUNFIL

SGND

SGND

SGNDSGND SGND

SGND

SGND

SGND

SGND

SGND

SGND

SGND

SGND

SGND

VCC

SGND

12VUNFIL

SGND

-5VUNFILSGND

VCC

SGNDSGND

SGND

SW_EXT_BATT-

SW_SUPPLY+

CHG

CHGR_I_SENSE

+CHARGER_ON

+HI_CHRGE_LVL

REF_PWR

PWR_BUS

6-22

Schematics


Schematic 6-21: Power board—system power entry

27V

1/4W

POWER INPUT GROUND

MOTOR GROUND

DC-DC SUPPLY GROUND

.25W

.25W

21

48

1

2

3

21

5

6

4

3

21

48

7

6

5

714

11

13

12

21

1

48

1

2

3

22

11

1

21

7

8

2

1

714

8

10

9

22

11

1

48

1

2

3

21

22

11

2G

ND

1VOUT

3VIN

48

1

2

3

22

11

48

7

6

5

21

21

21

4GND

5ERR

1VOUT

2SENS

6TAP

3SHTDN

7FDBK

8VIN

PGND

SW_SUPPLY-

MGND

SGND

FET_SUPPLY-

INT_BATT_ISNS+

INT_BATT_ISNS-

INT_BATT_VSNS-

CHG

COMBINED_PWR

CP_PANEL_PWR

EXT_BATT_VSNS+

EXT_BATT-

EXT_BATT+

+EXT_BATT_0FF

SW_EXT_BATT+

EXT_24V

EXT_PWR_ACTIVE

AC_PWR_ACTIVE

SW_SUPPLY+

INT_BATT_VSNS+

INT_BATT-

INT_VATT+

PWR_BUS

PWR_BUS

VCC

LTD_COMBINED_PWR

COMBINED_PWR

PGND

MPWR

MGND

SGND

PGND

PGND

PGND

+8V

PGNDPGND

PGND

LTD_COMBINED_PWR +5V

PGNDPGND

PGND

PGND

PGND

SGND

+8V

PGND

VREF

VCC

SGND

+8V

PGND

VREF

VCC

VREFSGND

+8V

PGND

VCC

VREF

+8V

+8V

PGND

PGND

PGND

PGND

VCCFET_SUPPLY

PGND

+5V

PGND

PGNDVREF

PGND

PGND

PGND

FET_SUPPLY

PGND

PGND

+8V

PGND

PGND

VREF

VCC

MM

SZ52

45BT

1

D66

0.1

C67

61.9K

R182

MTP

75N

05H

D

Q11

3.92K

R166

61.9K

R181

-

+

LM393M

U16A

24.3K

R164

MBRS1100T3

D49

0.01

C87

137K

R159

49.9K

R147

196K

R153

169K

R168

+

10/16V

C105

102K

R140

3.92K

R167

.01_1W

R80

PS2502-2

ISO3-2

10K

R156

249

R84

22.1K

R152

10K

R155

0.01

C108

-

+

LM393M

U19B

61.9K

R180

10K

R157

100K

R143

MBRS1100T3

D48

74HC32D

U20D

MTP

75N

05H

D

Q9

182K

R154

MBRS1100T3

D65

61.9K

R178

6.3A

FS3

BAS16LT1

D72

TP3

49.9K

R146

100K

R144

-

+

LM393M

U17A

F3

100

R160

MTP

75N

05H

D

Q10

LM4040AIM3-4.1

U15

TP2

MR752

D52

BAS16LT1

D71

1SMB24AT3

D43

100K

R149

49.9K

R162

38.3K

R158

499

R183

MM

SZ52

45BT

1

D53

549K

R161

61.9K

R179

MMSZ5254BT1

D70

PS2502-2

ISO3-1

74HC32D

U20C

16.2K

R139

MTP

75N

06H

D

Q8

+

10/16V

C109

F5

TP1

-

+

LM393M

U19A

0.01

C103

F6

10K

R141

LP2950CZ-5.0

U13

100K

R145

24.3K

R165

+

0.33/50V

C102

6.3A

FS4

-

+

LM393M

U18A

F4

MBRS1100T3

D50

1SMB33CAT3

D51

49.9K

R163

-

+

LM393M

U16B

MBRS1100T3

D64

316K

R151

0.01

C90

0.01

C88

0.01

C89

49.9K

R148

174K

R150

LP2951ACM

U14

8.06K

R82

+

1.0/50V

C104

+

1.0/50V

C68

100K

R142

6-23

Schematics


Schematic 6-22: Miscellaneous Circuitry

NURSE CALL RELAY CIRCUIT

3V MIN TO 35V MAX

RELAY DPDT

12

12

8

7

9

3

4

2

1

10

Q12

MTD3055EL1

R111

100K

C92

0.01

FS1

3.15AC19

0.1

R112

10K

C17

4.7/50V

+

D11

MURS120T3

L1

47uH_ 3

K1

TQ2E_12V

C20

390/50V

+

D59

MURS120T3

SGND

SGNDSGND

PGND

PGND

RELAY_PWR

NURSE_CALL+

NURSE_CALL_NC

PWR_BUS

-RMT_AUDIO

NURSE_CALL_NO

6-24

Schematics


Schematic 6-23: Power board—connectors and EMI filters

MTR_HALLS2MTR_COMM4

MTR_HALLS3

MTR_FLT

MTR_COMM3

MTR_COMM1

RUN_MODE

MTR_HALLS1

MTR_COMM2

+5V_UNFIL

+12V_UNFIL

-5V_UNFIL

GND

HALL SENSORS CONNECTOR

NURSE CALL ANNUNCIATOR

MOTOR DRIVE

EXTERNAL POWER CONNECTOR

12

11

22

1 2

3 4

5 6

7 8

9 10

11 12

13 14

15 16

17 18

19 20

21 22

23 24

25 26

27 28

29 30

11

22

1 2

3 4

5 6

7 8

9 10

11 12

13 14

15 16

17 18

19 20

12

12

34

56

78

910

1112

1314

12

1

2

3

4

5

6

1

2

3

4

5

6

12

11

22

1

24

3

12

1

24

3

12

11

22

11

22

12

11

22

11

22

11

22

11

22

2

1

3 4

12

12

12

12

C70 0.001

F7

JP4

DIGITAL TO POWER BRD CONNECTOR

F13

JP3

ANALOG TO POWER BRD CONNECTOR

C97

0.01

J5

OUTPUT POWER CONNECTORC73

0.1

J7

CON6

J3

CON6

C91

0.1

F12

J9

INTERNAL BATTERY CONNECTOR

F16

J2

CON4A

C100

0.01

J1

CON4A

C98

0.01

F14

F11

C99

0.01

F15

F8

F10

F9

S1

SW DPDT-ALT

C69

0.001C71 0.001

C72 0.001C74 0.001

VCC

MGND

MGND

MGND

MGND

SGND

PGND

VCC 12VUNFIL -5VUNFIL

12VUNFIL

+4V_INT

FET_SUPPLY

F_SW_SUPPLY+

F_SW_SUPPLY-

F_EXT_BATT+

F_EXT_BATT-

F_MOT_PHASE_A

F_MOT_PHASE_B

F_MOT_PHASE_C

SW_SUPPLY+

SW_SUPPLY-

EXT_BATT+

EXT_BATT-

MOT_PHASE_A

MOT_PHASE_B

MOT_PHASE_C

MGND_FIL

VCC_FIL

MALL_GND_FIL

F_SW_SUPPLY+

F_EXT_BATT+

F_SW_SUPPLY-

F_EXT_BATT-

INT_BATT+INT_BATT-

F_MOT_PHASE_B

F_MOT_PHASE_A

F_MOT_PHASE_C

MGND_FIL

RELAY_PWR

NURSE_CALL+

EXT_BATT_VSNS+

PGP0

PCLK

REF_PWR

ENTER_SW

INT_BATT_VSNS-

-ALARM_WDOG

EXT_BATT_VSNS-

FET_SUPPLY-

-VENT_MODE

EXT_24V

INT_BATT_ISNS-

VENTILATE_SW

PGP2

-IRQ6

CHGR_I_SENSE

OP_PANEL_PWR

EXT_PWR_ACTV

-PC5

-PC4

UP_HOLDON

INT_BATT_ISNS+

-RMT_AUDIO

-MTR_ENABLE

INT_BATT_VSNS+

-HI_CHRGR_LVL

+EXT_BATT_OFF

MTR_CURRENT

INT_BATT+

-PC6

+CHARHER_ON

-PC3

PGP1

AC_PWR_ACTIVE

PWR_BUS

STND_BY

STANDBY_SW1

NURSE_CALL_NO

NURSE_CALL_NC

HALL_S1

VCC_FIL

HALL_S2

HALL_GND_FIL

HALL_S3

6-25

Schematics


Drawing 6-1: Ventilator assembly drawing

6-26

Schematics


Drawing 6-2: Ventilator assembly drawing

6-27

Schematics


Drawing 6-3: Rear panel assembly drawing

6-28

Schematics


Drawing 6-4: Right end assembly drawing

6-29

Schematics


Drawing 6-5: Right end assembly drawing

6-30

Schematics


Drawing 6-6: Front panel assembly drawing

6-31

Schematics


Drawing 6-7: Piston assembly drawing

6-32

Schematics


Drawing 6-8: Manifold assembly drawing

6-33

Schematics


Drawing 6-9: Power supply assembly drawing

6-34

Schematics


(This page intentionally blank.)

7-1


Chapter 7: Service

This chapter provides service information and the limited warranty.

Service information

Achieva ventilators are warranted against defects in workmanship and materials. The full textof the warranty provides the details. Do not make any service repairs on this equipment duringthe stated warranty period. Any unauthorized work immediately voids the warranty. If youneed information or assistance, or if the information in this manual is insufficient, contactPuritan Bennett at: 1.800.255.6774

Puritan Bennett does not recognize the owner of a ventilator as an authorized trained servicerepresentative. Puritan Bennett will not be liable for any repairs attempted by the owner. Anysuch attempted repairs other than specified non-warranty repairs void the warranty. Parts andlabor costs incurred by the owner will not be reimbursed by Puritan Bennett. Puritan Bennettwill make available on request: diagrams, component parts lists, descriptions, calibrationprocedures and instructions to assist in the repair of parts classified by Puritan Bennett asrepairable.

Before returning any device to Puritan Bennett you must get a Return Authorization Numberby calling Puritan Bennett at the number listed above.

7-2

Service


Limited warranty

Puritan Bennett warrants to the owner that the Achieva ventilators, exclusive of expendableparts and other accessories, shall be free from defects in material and workmanship fortwenty-four months from the original date of sale. Puritan Bennett’s sole obligation, withrespect to any such defect, is limited to the repair or, at Puritan Bennett’s option, replacementof the ventilator. Purchaser pays return freight charges.

This warranty is made on the condition that prompt notification of a defect is given to PuritanBennett within the warranty period, and that Puritan Bennett has the sole right to determinewhether a defect exists.

This warranty is conditional on the performance of Preventive Maintenance at a minimum ofonce every 6000 operating hours, or recertification every twelve (12) months (whicheveroccurs first) by service personnel qualified by Puritan Bennett. The warranty does not apply toventilators that have been partially or completely disassembled; altered; subjected to misuse,negligence, or accident; or operated other than in accordance with the instructions provided byPuritan Bennett. This includes repair by trained personnel.

This warranty represents the exclusive obligation of Puritan Bennett and the exclusive remedyof the purchaser regarding defects in the ventilator.

THIS WARRANTY IS GIVEN IN LIEU OF ANY EXPRESS OR IMPLIEDWARRANTIES, INCLUDING ANY WARRANTY OF MERCHANTABILITY ORFITNESS FOR A PARTICULAR PURPOSE.

No person is authorized to modify, in any manner, Puritan Bennett’s obligation as describedabove.

A-1


Appendix: Oxygen Adapter Assembly

Canadian1. Remove the cover from the oxygen port (on the rear panel).

2. Attach the adapter to the oxygen port.

3. Attach the hose to the adapter.

A-2



Dräger 1. Remove the cover from the oxygen port (on the rear panel).

2. Attach the hose to the port.

A-3



Australian 1. Remove the cover from the oxygen port (on the rear panel).

2. Apply PTFE thread sealing tape to the threads on the oxygen port. Do not apply tape to the two threads closest to the end of the port. Wrap the tape clockwise around the oxygen port. Wrap the tape around the port five full turns.



A-4



NIST

1. Remove the cover from the oxygen port (on the rear panel).

2. Apply PTFE thread sealing tape to the threads on the oxygen port. Do not apply tape to the two threads closest to the end of the port. Wrap the tape clockwise around the oxygen port. Wrap the tape around the port five full turns.



A-5



UK 1. Remove the cover from the oxygen port (on the rear panel).



A-6



French 1. Remove the cover from the oxygen port (on the rear panel).

2. Apply PTFE thread sealing tape to the threads of the oxygen port. Do not apply tape to the two threads closest to the end of the port. Wrap the tape clockwise around the oxygen port. Wrap the tape around the port five full turns.



I-1


IndexA

AC line power 2-2AC power 3-4Accessories 5-1Alarm

Low pressure 2-11Power 4-13Setting error 3-13Sounds 3-13

Alarm control light 2-6Alarm lights 2-5Alarms

Internal battery 2-30Alcohol 5-1Arrow keys, up and down 2-8Assist/Control Mode 2-19Assist/Control mode 2-15Assist/Spontaneous light 2-6Assisted breath 2-10Audible alarm 3-16, 3-17Audible alarms 2-30

B

Back and sides of ventilator case 2-13Bacteria filter 3-2Battery 2-2

Charging 2-2External 2-2, 3-5Internal 2-2, 3-10

Breath rate 2-10Breath Rate setting 2-17

C

Calibration and testing 3-1Caregiver 2-2Caution, explanation of 1-2Cleaning and sterilization 5-1Components 4-1Components, operation 4-3Connectors specifications 2-32Continuous Positive Airway Pressure 2-27Contra-Indications 2-1Contra-indications 2-4Controls 2-1Controls specifications 2-31Conventions 1-3CPAP 2-27

D

DataStorage of 4-5

DC power 2-33Description 1-1, 2-1, 3-1Display and controls, ventilator 2-2

E

Ethylene oxide 5-1ETO 5-1expiratory sensitivity level 2-19External battery 3-4External power source 4-11

F

FCC Part 68 Information 2-35Features 2-3Features of Achieva ventilators 2-1Flow 2-12

I-2

Index


Flow and valves 4-1Front panel 2-4Fuse, changing 5-5

H

High pressure 3-4

I

Indications for use 2-1Input, external DC 4-12Input, internal battery 4-12Inputs, digital 4-8Inspiratory 3-13Inspiratory flow acceleration 2-19inspiratory pressure 2-19Inspiratory times 3-4Intended use 2-1Internal Battery 2-30Internal battery charger 4-12Internal battery operation 4-11Invalid I/E ratio 2-30

L

LightsAlarm control 2-6Assist/Spontaneous 2-6

Logic boardAlarm and monitor circuits 6-8DAC circuits 6-15Flow sensor circuits 6-11LED indicators/controls 6-6Memory/address select 6-4Miscellaneous digital I/O 6-7Notes for schematics 6-2Pressure sensor circuits 6-10

Primary ADC circuits 6-12Serial ADC 6-13Switch inputs 6-5

Low internal battery alarm 2-30Low pressure 2-11Low pressure alarm 2-11

M

Maintenance 5-1Maintenance, periodic 5-7Maintenance, tools and equipment 1-4Mandatory volume breaths 2-21MEK 5-1Menu

Options 2-8Selections 3-6

Meter, battery charge level 2-2Meter, patient pressure 2-6Micro-controller 4-4Micro-controller I/O ports 4-9Miscellaneous specifications 2-34Mode 3-10Modem

External 2-14Modem connector 2-14Modem controller 4-8Modem, FCC and telephone company 2-35Motor drive control 4-5

N

Nonlatching 2-30Note, explanation of 1-3

O

O2 fail alarm 4-3

I-3

Index


O2 Level 2-32Outputs, digital 4-8Oxygen 4-3Oxygen adapters A-1Oxygen alarm 4-3

P

Panel, front 2-4Patient circuit 3-1, 3-2, 3-7Patient circuit and equipment 3-8Patient pressure meter 2-6Patient pressure tube 2-33PEEP 2-10Periodic maintenance 5-1, 5-7Pneumatic diagram 4-2Pneumatic test 3-6Power

ACDC 4-11

Power boardConnectors and EMI filters 6-24Motor drive 6-19Notes ventilator schematic 6-18Power on/off circuit 6-20Switching power supplies 6-21System power entry 6-22

Power cord 5-5Power cord connector 5-5Power distribution 2-2, 4-12Power lights 2-6Power system 2-2Power system control 4-13Power, system 4-9Presilence audible alarm 2-6Pressure control 2-3, 2-10Pressure support 2-10, 3-16, 3-17

Pressure trigger 2-10Pressure-supported breaths 2-25

R

Real-time clock 4-5REN 2-35Right end assembly drawing 6-28Ringer equivalence number (REN) 2-35

S

Self-test 3-6Service information 7-1SIMV mode 2-21, 2-23, 3-14Specifications 2-29Spontaneous mode 2-25Standard compliance 2-35Sterilization 5-1Supplemental 4-3System analog control 4-7System analog monitoring circuitry 4-6System memory 4-5

T

Telephone company and modem 2-36Telephone cord 2-36Theory of operation 4-1Trichloroethylene 5-1

U

Up and down keys 2-31User

Self-test 1-1, 2-30USOC jack 2-35

I-4

Index


V

VentilatorMode 3-4

Ventilator mode 3-1Ventilator modes and apnea 3-13, 3-15Ventilator operation 3-1Visual alarm 3-10Volume breaths 3-12–3-13Volume change 3-11Volume error alarm 3-12

W

Warning, convention 1-3Warranty 7-1Warranty considerations 1-3Waveforms 2-15–2-27

Tyco Healthcare Group LP

Nellcor Puritan Bennett Division

4280 Hacienda Drive

Pleasanton, CA 94588

Toll Free: 1.800.NELLCOR

Authorized Representative:

Tyco Healthcare UK LTD

154 Fareham Road

Gosport PO13 0AS, U.K.

Rx ONLY

© 2004 Nellcor Puritan Bennett, Inc. All rights reserved. 066477A-0204

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