model 2001 multimeter calibration manualg-may2004...manual print history the print history shown...

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Model 2001 MultimeterCalibration Manual2001-905-01 Rev. G / May 2004

Model 2001 MultimeterCalibration Manual

©1992, Keithley Instruments, Inc.All rights reserved.

Cleveland, Ohio, U.S.A.Seventh Printing May 2004

Document Number: 2001-905-01 Rev. G

The print history showLevel letter increases asions, contain importanbered sequentially. Whincorporated into the n

RevisRevisRevisAddenAddenAddenRevisRevisRevisRevis

All Keithley product names a

Other brand and product nam

Manual Print History

n below lists the printing dates of all Revisions and Addenda created for this manual. The Revisionlphabetically as the manual undergoes subsequent updates. Addenda, which are released between Revi-t change information that the user should incorporate immediately into the manual. Addenda are num-en a new Revision is created, all Addenda associated with the previous Revision of the manual are

ew Revision of the manual. Each new Revision includes a revised copy of this print history page.

ion A (Document Number 2001-905-01) ....................................................................................... April 1992ion B (Document Number 2001-905-01) ........................................................................................ June 1992ion C (Document Number 2001-905-01) ........................................................................................ May 1993dum C (Document Number 2001-905-02) ..................................................................................... June 1993dum C (Document Number 2001-905-03) ............................................................................November 1993dum C (Document Number 2001-905-04) ................................................................................ January 1995

ion D (Document Number 2001-905-01) .................................................................................... August 1995ion E (Document Number 2001-905-01)........................................................................................ April 1996ion F (Document Number 2001-905-01) ................................................................................November 2003ion G (Document Number 2001-905-01) ........................................................................................ May 2004

re trademarks or registered trademarks of Keithley Instruments, Inc.

es are trademarks or registered trademarks of their respective holders.

11/07

Safety Precautions The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with non-hazardous voltages, there are situations where hazardous conditions may be present.

This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer to the user documentation for complete product specifications.

If the product is used in a manner not specified, the protection provided by the product warranty may be impaired.

The types of product users are:

Responsible body is the individual or group responsible for the use and maintenance of equipment, for ensuring that the equipment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.

Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the instrument. They must be protected from electric shock and contact with hazardous live circuits.

Maintenance personnel perform routine procedures on the product to keep it operating properly, for example, setting the line voltage or replacing consumable materials. Maintenance procedures are described in the user documentation. The procedures explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.

Service personnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained service personnel may perform installation and service procedures.

Keithley Instruments products are designed for use with electrical signals that are rated Measurement Category I and Measurement Category II, as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient over-voltages. Measurement Category II connections require protection for high transient over-voltages often associated with local AC mains connections. Assume all measurement, control, and data I/O connections are for connection to Category I sources unless otherwise marked or described in the user documentation.

Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30V RMS, 42.4V peak, or 60VDC are present. A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring.

Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is capable of operating at or above 1000V, no conductive part of the circuit may be exposed.

Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance-limited sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card.

Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.

When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input power disconnect device must be provided in close proximity to the equipment and within easy reach of the operator.

For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.

Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured.

The instrument and accessories must be used in accordance with its specifications and operating instructions, or the safety of the equipment may be impaired.

Do not exceed the maximum signal levels of the instruments and accessories, as defined in the specifications and operating information, and as shown on the instrument or test fixture panels, or switching card.

When fuses are used in a product, replace with the same type and rating for continued protection against fire hazard.

Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth ground connections.

If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use of a lid interlock.

If a screw is present, c th

The symbol on an ins ththe user documentation in

The symbol on an in awith these voltages.

The symbol on an ins c

The symbol indicates

If this symbol is on a leproperly disposed of accor

The WARNING heading in rsthe associated information

The CAUTION heading in ininvalidate the warranty.

Instrumentation and acces

Before performing any ma

To maintain protection from itstest leads, and input jacks iapprovals may be used if t safrom other suppliers as lon cthrough Keithley Instrumen rereplacement component, c

To clean an instrument, us f cleaner directly to the instr no case or chassis (e.g., a veaccording to instructions. I bfactory for proper cleaning

onnect it to safety earth ground using the wire recommended in

trument means caution, risk of danger. The user should refer to all cases where the symbol is marked on the instrument.

strument means caution, risk of danger. Use standard safety prec

trument shows that the surface may be hot. Avoid personal conta

a connection terminal to the equipment frame.

product, it indicates that mercury is present in the display lamp. Pding to federal, state, and local laws.

the user documentation explains dangers that might result in pe very carefully before performing the indicated procedure.

the user documentation explains hazards that could damage the

sories shall not be connected to humans.

intenance, disconnect the line cord and all test cables.

electric shock and fire, replacement components in mains circu - must be purchased from Keithley Instruments. Standard fuses whe rating and type are the same. Other components that are not g as they are equivalent to the original component (note that selets to maintain accuracy and functionality of the product). If you aall a Keithley Instruments office for information.

e a damp cloth or mild, water-based cleaner. Clean the exterior oument or allow liquids to enter or spill on the instrument. Products data acquisition board for installation into a computer) should nef the board becomes contaminated and operation is affected, the/servicing.

e user documentation.

e operating instructions located in

utions to avoid personal contact

t to prevent burns.

ase note that the lamp must be

onal injury or death. Always read

strument. Such damage may

- including the power transformer, th applicable national safety fety-related may be purchased ted parts should be purchased only unsure about the applicability of a

the instrument only. Do not apply that consist of a circuit board with r require cleaning if handled

oard should be returned to the

11/07

Table of Contents

1 Perfor

1.1 Introduc1.2 Environ1.3 Warm-u1.4 Line pow1.5 Recomm1.6 Verifica1.7 Restorin1.8 Verifica1.8.1 DC1.8.2 AC1.8.3 DC1.8.4 AC1.8.5 Re1.8.6 Fre1.8.7 Tem

2 Calibr

2.1 Introduc2.2 Environ2.3 Warm-u2.4 Line pow2.5 Calibrat2.5.1 Co2.5.2 Lo2.5.3 IEE2.6 IEEE-482.6.1 Ca2.6.2 Re2.6.3 Ex2.7 Calibrat

mance Verification

tion.......................................................................................................................................................... 1-1mental conditions .................................................................................................................................... 1-1p period ................................................................................................................................................... 1-1er ........................................................................................................................................................... 1-1ended test equipment ............................................................................................................................. 1-2

tion limits ................................................................................................................................................ 1-2g default conditions ................................................................................................................................ 1-2tion procedures........................................................................................................................................ 1-4 volts verification.................................................................................................................................... 1-4 volts verification.................................................................................................................................... 1-5 current verification .............................................................................................................................. 1-10 current verification .............................................................................................................................. 1-11

sistance verification ............................................................................................................................... 1-13quency accuracy verification ................................................................................................................ 1-16

perature reading checks ...................................................................................................................... 1-17

ation

tion.......................................................................................................................................................... 2-1mental conditions .................................................................................................................................... 2-1p period ................................................................................................................................................... 2-2er ........................................................................................................................................................... 2-2

ion lock.................................................................................................................................................... 2-2mprehensive calibration lock................................................................................................................... 2-2w-level calibration lock ........................................................................................................................... 2-2E-488 bus calibration lock status ........................................................................................................... 2-28 bus calibration commands and program ............................................................................................. 2-2

libration commands ................................................................................................................................. 2-2quired order of command execution ........................................................................................................ 2-4ample calibration command program ...................................................................................................... 2-4ion errors ................................................................................................................................................. 2-5

i

ii

2.7.1 Fro2.7.2 IEE2.8 Compre2.8.1 Re2.8.2 Fro2.8.3 IEE2.9 AC self-2.9.1 Fro2.9.2 IEE2.10 Low-lev2.10.1 Re2.10.2 Lo2.10.3 Fro2.10.4 IEE

3 Calibr

3.1 Introduc3.2 Comma3.3 :CALibr3.3.1 :LO3.3.2 :SW3.3.3 :SA3.3.4 :DA3.3.5 :DA3.3.6 :DA3.3.7 :ND3.3.8 :ND3.3.9 :LL3.3.10 :DC3.4 :CALibr3.4.1 :AC3.5 Bus erro3.5.1 Ca3.5.2 De3.6 Detectin3.6.1 Us3.6.2 Us

Appen

A Model 2B CalibratC CalibratD Alternat

nt panel error message summary.............................................................................................................2-5E-488 bus error reporting .......................................................................................................................2-6

hensive calibration...................................................................................................................................2-6commended equipment for comprehensive calibration ...........................................................................2-6nt panel comprehensive calibration ........................................................................................................2-6E-488 bus comprehensive calibration ....................................................................................................2-9calibration .............................................................................................................................................2-12nt panel AC calibration .........................................................................................................................2-12E-488 bus AC self-calibration..............................................................................................................2-12el calibration..........................................................................................................................................2-12

commended equipment for low-level calibration ..................................................................................2-13w-level calibration summary..................................................................................................................2-13nt panel low-level calibration procedure...............................................................................................2-15E-488 bus low-level calibration procedure ..........................................................................................2-18

ation Command Reference

tion .........................................................................................................................................................3-1nd summary..............................................................................................................................................3-1ation:PROTected subsystem ...................................................................................................................3-3CK ..........................................................................................................................................................3-3ITch?......................................................................................................................................................3-3VE...........................................................................................................................................................3-4TA? ........................................................................................................................................................3-4TE ..........................................................................................................................................................3-5TE?.........................................................................................................................................................3-5UE..........................................................................................................................................................3-5UE? ........................................................................................................................................................3-6EVel........................................................................................................................................................3-6...............................................................................................................................................................3-9

ation:UNPRotected Subsystem.............................................................................................................3-12Compensation ......................................................................................................................................3-12

r reporting .............................................................................................................................................3-13libration error summary .........................................................................................................................3-13tecting calibration errors ........................................................................................................................3-13g calibration step completion ................................................................................................................3-13

ing the *OPC? query ..............................................................................................................................3-13ing the *OPC command .........................................................................................................................3-14

dices

001 Specifications ..................................................................................................................................A-1ion Programs........................................................................................................................................... B-1ion Messages........................................................................................................................................... C-1e Calibration Sources .............................................................................................................................D-1

List of Illustrations

1 Pe

Figure 1-1 CFigure 1-2 CFigure 1-3 CFigure 1-4 CFigure 1-5 CFigure 1-6 CFigure 1-7 CFigure 1-8 1GFigure 1-9 C

2 Ca

Figure 2-1 LoFigure 2-2 CFigure 2-3 CFigure 2-4 CFigure 2-5 Sy

Ap

Figure B-1 LoFigure B-2 CaFigure B-3 CaFigure B-4 CaFigure B-5 Sy

rformance Verification

onnections for DC volts verification ...................................................................................................... 1-5onnections for AC volts verification (all except 2MHz test).................................................................. 1-6onnections for AC volts verification (2MHz frequency only) ............................................................... 1-7onnections for DC current verification................................................................................................. 1-11onnections for AC current verification................................................................................................. 1-12onnections for resistance verification (20¾-200k¾ ranges)................................................................. 1-14onnections for resistance verification (2M¾ - 200M¾ ranges) ........................................................... 1-15

¾ resistor test box construction.......................................................................................................... 1-15onnections for frequency accuracy verification.................................................................................... 1-16

libration

w-thermal short connections................................................................................................................. 2-7onnections for comprehensive calibration.............................................................................................. 2-8alibration voltage connections .............................................................................................................. 2-16urrent calibration connections .............................................................................................................. 2-17nthesizer connections .......................................................................................................................... 2-18

pendices

w-thermal short connections..................................................................................................................................................... B-3libration connection for comprehensive calibration............................................................................................................... B-4libration voltage connections..................................................................................................................................................... B-4libration current connections..................................................................................................................................................... B-5nthesizer connections.................................................................................................................................................................. B-5

iii

List of Tables

1 Pe

Table 1-1 RTable 1-2 LiTable 1-3 LiTable 1-4 LiTable 1-5 LiTable 1-6 LiTable 1-7 LiTable 1-8 LiTable 1-9 LiTable 1-10 FrTable 1-11 ThTable 1-12 R

2 Ca

Table 2-1 IETable 2-2 CTable 2-3 RTable 2-4 FrTable 2-5 IETable 2-6 RTable 2-7 Lo

3 Ca

Table 3-1 IETable 3-2 LoTable 3-3 CTable 3-4 C

rformance Verification

ecommended equipment for performance verification........................................................................... 1-2mits for DC volts verification ................................................................................................................ 1-5mits for normal mode AC voltage verification...................................................................................... 1-8mits for low-frequency mode AC voltage verification.......................................................................... 1-9mits for AC peak voltage verification ................................................................................................. 1-10mits for DC current verification .......................................................................................................... 1-11mits for AC current verification .......................................................................................................... 1-12mits for resistance verification (20¾-200M¾ ranges)......................................................................... 1-13mits for resistance verification (1G¾ range) ....................................................................................... 1-15equency verification limits .................................................................................................................. 1-16ermocouple temperature reading checks............................................................................................. 1-17

TD probe temperature reading checks.................................................................................................. 1-18

libration

EE-488 bus calibration command summary.......................................................................................... 2-3alibration error messages ........................................................................................................................ 2-5ecommended equipment for comprehensive calibration ........................................................................ 2-6ont panel comprehensive calibration summary ..................................................................................... 2-6EE-488 bus comprehensive calibration summary ............................................................................... 2-10

ecommended equipment for low-level calibration ............................................................................... 2-13w-level calibration summary .............................................................................................................. 2-14

libration Command Reference

EE-488 bus calibration command summary.......................................................................................... 3-2w-level calibration commands .............................................................................................................. 3-6

omprehensive calibration commands ..................................................................................................... 3-9alibration error summary ...................................................................................................................... 3-13

v

vi

Ap

Table B-1 RTable B-2 R

Table C-1 C

Table D-1 A

pendices

ecommended equipment for comprehensive calibration ....................................................................... B-2ecommended equipment for low-level calibration................................................................................. B-2

alibration errors ...................................................................................................................................... C-2

lternate calibration sources .................................................................................................................... D-1

1Performance Verification

1.1 Introduc

The procedures in tModel 2001 accuracyment one-year speciformed when the instdamage or misadjusVerification may alsotion of instrument acsired.

If the instruand its perlimits, conttive or the fcourse of ac

This section includes

1.2 Environmentand humidity l

1.3 Warm-up perModel 2001 shing.

1.4 Line power: Ctesting.

1.5 Recommendemended equip

tion

his section are intended to verify that is within the limits stated in the instru-

fications. These procedures can be per-rument is first received to ensure that notment has occurred during shipment. be performed whenever there is a ques-curacy, or following calibration, if de-

NOTE

ment is still under warranty,formance is outside specifiedact your Keithley representa-actory to determine the correcttion.

the following:

al conditions: Covers the temperatureimits for verification.

iod: Describes the length of time theould be allowed to warm up before test-

overs power line voltage ranges during

d equipment: Summarizes recom-ment and pertinent specifications.

1.6 Verification limits: Explains how reading limits werecalculated.

1.7 Restoring factory default conditions: Gives step-by-step procedures for restoring default conditions beforeeach test procedure.

1.8 Verification procedures: Details procedures to verifymeasurement accuracy of all Model 2001 measure-ment functions.

1.2 Environmental conditions

Verification measurements should be made at an ambienttemperature of 18-28°C (65-82°F), and at a relative humidityof less than 80% unless otherwise noted.

1.3 Warm-up period

The Model 2001 must be allowed to warm up for at least onehour before performing the verification procedures. If the in-strument has been subjected to temperature extremes (out-side the range stated in paragraph 1.2), allow additional timefor internal temperatures to stabilize. Typically, it takes oneadditional hour to stabilize a unit that is 10°C (18°F) outsidethe specified temperature range.

The calibration equipment should also be allowed to warmup for the minimum period specified by the manufacturer.

1-1

Performance Verification

1-2

1.4 Line pow

The Model 2001 shovoltage in the range of 50, 60, or 400Hz.

1.5 Recomm

Table 1-1 lists all teAlternate equipmenthas specifications at See Appendix D for

1.6 Verificati

The verification limilated using only Mothey do not include tmeasurement falls slculate new limits baand pertinent calibra

Table 1-1Recommended equip

Mfg. Model

Fluke 5700A

er

uld be tested while operating from a lineof 90-134V or 180-250V at a frequency

ended test equipment

st equipment required for verification. may be used as long as that equipmentleast as good as those listed in the table.a list of alternate calibration sources.

on limits

ts stated in this section have been calcu-del 2001 one year specifications, andest equipment tolerance. If a particularightly outside the allowed range, recal-sed both on Model 2001 specificationstion equipment specifications.

1.7 Restoring default conditions

Before performing each performance verification procedure,restore instrument bench default conditions as follows:

1. From the normal display mode, press the MENU key.The instrument will display the following:

MAIN MENUSAVESETUP GPIB CALIBRATION

2. Select SAVESETUP, and press ENTER. The followingwill be displayed:

SETUP MENUSAVE RESTORE POWERON RESET

3. Select RESET, and press ENTER. The display will thenappear as follows:

RESET ORIGINAL DFLTSBENCH GPIB

4. Select BENCH, then press ENTER. The following willbe displayed:

RESETTING INSTRUMENTENTER to confirm; EXIT to abort

5. Press ENTER again to confirm instrument reset.

ment for performance verification

Description Specifications*

Calibrator ±5ppm basic uncertainty.DC voltage:

190mV: ±11ppm1.9V: ±5ppm19V: ±5ppm190V: ±7ppm1000V: ±9ppm

AC voltage, 10Hz-1MHz (40Hz-20kHz specifications):190mV: ±150ppm1.9V: ±78ppm19V: ±78ppm190V: ±85ppm

DC current:190µA: ±102ppm1.9mA: ±55ppm19mA: ±55ppm190mA: ±65ppm1.9A: ±96ppm


Table 1-1 (cont.)Recommended equip

Mfg. Model

Fluke 5700A z-1kHz specifications):

Fluke 5725A V: ±85ppm

Fluke 5700A-0

Fluke 5440A-7

Keithley CA-18-1 to dual banana shielded cable (for

Keithley R-289-1G racterized to within ±10,000 ppm and see procedure).

Keithley 3940

General Radio

1433-T

⎯ ⎯* 90-day calibrator spec ludes 0.5ppm transfer uncertainty. See Appendix D for recommendation o

ment for performance verification

Description Specifications*

Calibrator AC current, 40Hz-10kHz (40H190µA: ±245ppm1.9mA: ±160ppm19mA: ±160ppm190mA: ±170ppm1.9A: ±670ppm

Resistance:19¾: ±26ppm190¾: ±17ppm1.9k¾: ±12ppm19k¾: ±11ppm190k¾: ±13ppm1.9M¾: ±19ppm19M¾: ±47ppm100M¾: ±120ppm

Amplifier AC voltage, 1kHz-10kHz: 750

3 Wideband AC option 190mV, 1.9V @ 2MHz, ±0.1%

002 Low thermal cable set

Low capacitance cable Low capacitance dual banana ACV), 1.2m (4 ft.) in length.

1G¾ resistor NOTE: Resistor should be chamounted in shielded test box (

Metal component box (for 1G¾ resistor)

Insulated banana plugs (2) (for test box)

Multifunction Synthesizer 1Hz-15MHz, ±5ppm

Precision Decade Resis-tance Box

10-400¾, ±0.02%

Megohmmeter 1G¾, ±1%

ifications shown include total uncertainty at specified output. The 1.9V output incn alternate calibration sources.

1-3


1-4

1.8 Verificati

The following paraginstrument accuracy ing functions:

• DC volts

• AC volts

• DC current

• AC current

• Resistance

• Frequency

• Temperature

If the Model 2001 is ranty, refer to the cal

The maxim(voltage besis ground)value may tion, creatithe procedpose you standard sdangerous avoid persoshock.

Do not connel 2001 thro

1.8.1 DC volts v

DC voltage accuracvoltages from a calibfying that the display

Follow the steps belocy.

Do not excPUT HI andamage ma

on procedures

raphs contain procedures for verifyingspecifications for the following measur-

out of specifications and not under war-ibration procedures in Section 2.

WARNING

um common-mode voltagetween INPUT LO and chas- is 500V peak. Exceeding thiscause a breakdown in insula-ng a shock hazard. Some ofures in this section may ex-to dangerous voltages. Useafety precautions when suchvoltages are encountered tonal injury caused by electric

NOTE

ect test equipment to the Mod-ugh a scanner.

erification

y is verified by applying accurate DCrator to the Model 2001 input and veri-ed readings fall within specified ranges.

w to verify DCV measurement accura-

CAUTION

eed 1100V peak between IN-d INPUT LO, or instrumenty occur.

1. Turn on the Model 2001 and the calibrator, and allow aone-hour warm-up period before making measure-ments.

NOTE

Use shielded, low-thermal connectionswhen testing the 200mV range to avoid er-rors caused by noise or thermal offsets.Connect the shield to calibrator outputLO. (See Table 1-1.)

2. Connect the Model 2001 to the calibrator, as shown inFigure 1-1. Be sure to connect calibrator HI to Model2001 INPUT HI and calibrator LO to Model 2001 IN-PUT LO as shown.

3. Restore Model 2001 factory default conditions, as ex-plained in paragraph 1.7.

4. Set digital filter averaging as follows:A. From normal display, press CONFIG then DCV.B. Select FILTER, then press ENTER.C. Select AVERAGING, then press ENTER.D. Using the cursor and range keys, set the averaging

parameter to 10 readings, then press ENTER.E. Press EXIT as necessary to return to normal display.F. If the FILT annunciator is off, press FILTER to en-

able the filter.5. Select the Model 2001 200mV DC range.

NOTE

Do not use auto-ranging for any of the ver-ification tests because auto-range hystere-sis may cause the Model 2001 to be on anincorrect range.

6. Set the calibrator output to 0.000000mVDC, and allowthe reading to settle.

7. Enable the Model 2001 REL mode. Leave REL enabledfor the remainder of the DC volts verification test.

8. Set the calibrator output to +190.0000mVDC, and allowthe reading to settle.

9. Verify that the Model 2001 reading is within the limitssummarized in Table 1-2.

10. Repeat steps 8 and 9 for the remaining ranges and volt-ages listed in Table 1-2.

11. Repeat the procedure for each of the ranges with nega-tive voltages of the same magnitude as those listed in Ta-ble 1-2.


1.8.2 AC volts v

AC voltage accuracyvoltages at specificsource and then verifreading falls within tification procedures

• Normal mode

• Low-frequency

• Peak ACV

Do not ex107V•Hz bPUT LO, ocur.

Table 1-2Limits for DC volts v

2001 DCV range

Appliedvolta

200mV2V

20V200V

1000V

190.001.90019.00190.01000

Notes:1. Repeat procedure for n2. Reading limits shown

Figure 1-1Connections for DC

NEXT

DISPLAY

PREV

POWER

DCV ACV DCI ACI

REL TRIG STORE RECALL

INFO LOCAL CHAN SCAN C

+1. 900000 VD

Mo

rator (Output DC Voltage)

link installed.

ou

o su

Iowg

l g

n

e C

tod M T a i

di

s,.o)

erification

is checked by applying accurate AC frequencies from an AC calibrationying that each Model 2001 AC voltagehe specified range. The three ACV ver-that follow include:

mode

CAUTION

ceed 1100V peak or 2 ×etween INPUT HI and IN-r instrument damage may oc-

erification

DC ge

Reading limits(18° to 28°C, 1 year)

00mV000V000V000V.000V

189.9918mV to 190.0082mV1.899949V to 1.900052V18.99946V to 19.00054V189.9922V to 190.0078V999.953V to 1000.047V

egative voltages.do not include calibrator uncertainty.

volts verification

Ω2 Ω4 FREQ TEMP

ONFIG MENU EXIT ENTER

RANGE

AUTOFILTER MATH

RANGE

2001 MULTIMETER

SENSEΩ 4 WIRE

HI

INPUT

LOINPUTS

CAL

500VPEAK

F R

FRONT/REAR2A 250V

AMPS

350VPEAK

1100VPEAK

C

Input HI

Output HI

InputLO Output

LO

del 2001

5700A Calib

Note: Use shielded, low-thermal cables when testing 200mV range. Use internal Guard (EX GRD LED is off).

Ground

Normal mode

1. Turn on the Mallow a one-hosurements.

2. Connect the MFigure 1-2. Be2001 INPUT HPUT LO as shcalibrator usinthe calibrator.

3. Restore Modeplained in para

4. Select the ACVModel 2001, a

Do not usforming A

5. Set the calibracy of 20Hz, an

6. Verify that thesummarized in

7. Repeat steps 5quencies listedinstrument reain the table.

8. Repeat steps 5750VAC rangeed in Table 1-3

9. Connect the Mput (Figure 1-3

del 2001, calibrator, and amplifier, andr warm-up period before making mea-

del 2001 to the calibrator, as shown inre to connect the amplifier HI to Model, and amplifier LO to Model 2001 IN-n. Connect the power amplifier to the

the appropriate connector on the rear of

2001 factory default conditions, as ex-raph 1.7. function and the 200mV range on thed make sure that REL is disabled.

NOTE

REL to null offsets when per- volts tests.

r output to 190.000mVAC at a frequen- allow the reading to settle.

odel 2001 reading is within the limitsable 1-3.

nd 6 for 190mVAC at the remaining fre-n Table 1-3 (except 2MHz).Verify thatngs fall within the required limits listed

through 7 for the 2V, 20V, 200V, and using the input voltages and limits stat-

del 2001 to the wideband calibrator out-.

1-5


1-6

e C

lt

fF

tod M T a i s,.

p0

Figure 1-2Connections for AC

NEXT

DISPLAY

PREV

POWER

DCV ACV DCI

REL TRIG STORE

INFO LOCAL CHAN

1. 900000

10. Set the calibratoof 2MHz.

11. Verify that the re3.

12. Repeat steps 10range.

Low-frequency mo

1. Turn on the Moallow a one-housurements.

2. Connect the MoFigure 1-2. Be s2001 INPUT HIPUT LO as showcalibrator using the calibrator.

3. Restore Model plained in parag

4. Select the ACVModel 2001, an

Do not usforming Aable the fi

5. Select the low-A. Press CON

ENTER.B. Select LOWC. Press EXIT

6. Set the calibracy of 10Hz, an

7. Verify that thesummarized in

8. Repeat steps 6quencies listed

9. Repeat steps 6750VAC rangeed in Table 1-4

Do not ap80V at 25

r output to 190.0000mV at a frequency

ading is within limits stated in Table 1-

and 11 for 1.900V input on the 2V

de


del 2001 to the calibrator, as shown inure to connect the amplifier HI to Model, and amplifier LO to Model 2001 IN-n. Connect the power amplifier to the



at 1MHz, occur.

volts verification (all except 2MHz test)

ACI Ω2 Ω4 FREQ TEMP

RECALL

SCAN CONFIG MENU EXIT ENTER

RANGE

AUTOFILTER MATH

RANGE

2001 MULTIMETER

SENSEΩ 4 WIRE

HI

INPUT

LOINPUTS

CAL

500VPEAK

F R

FRONT/REAR2A 250V

AMPS

350VPEAK

1100VPEAK

VAC RMS

Input HI

Output HI

InputLO Output

LO

Model 2001

5700A Calibra

5725 Ampli

CA-18-1 Low-capacitance cable

Ground link

Note: Use internal Guard (EX G

NOTE

REL to null offsets when per- volts tests. Also, do not en-

er.

requency mode as follows:IG ACV, select AC-TYPE, then press

-FREQ-RMS, then press ENTER.as required to return to normal display.r output to 190.000mVAC at a frequen- allow the reading to settle.


nd 7 for 190mVAC at the remaining fre-n the table.through 8 for the 2V, 20V, 200V, and using the input voltages and limits stat-

CAUTION

ly more than 400V at 50kHz,kHz, 40V at 500kHz, or 20Vor instrument damage may

tor (Output AC Voltage)

fier (Connect to calibrator)

installed.

RD LED is off).



NEXT

DISPLAY

PREV

POWER

DCV ACV DCI ACI Ω2


INFO LOCAL CHAN SCAN CONFI

FILTE

1. 900000 VAC

Mod

librator (Output AC Voltage)

lifier (Connect to calibrator)

nk installed.

GRD LED is off).

volts verification (2MHz frequency only)

Ω4 FREQ TEMP

G MENU EXIT ENTER

RANGE

AUTOR MATH

RANGE

2001 MULTIMETER

SENSEΩ 4 WIRE

HI

INPUT

LOINPUTS

CAL

500VPEAK

F R

FRONT/REAR2A 250V

AMPS

350VPEAK

1100VPEAK

RMS

BNC to dualbanana

50Ωterminator

el 2001

5700A Ca

5725 Amp

50Ω Coax

Widebandoutput

Ground li

Note: Use internal Guard (EX

1-7


1-8

Tabl

e 1-

3

L

imit

s fo

r no

rmal

mod

e A

C v

olta

ge v

erifi

cati

on

Allo

wab

le r

eadi

ngs

(1 y

ear,

18°

to 2

8°C

)

2001

A

CV

ra

nge

App

lied

volt

age

20H

z50

Hz

1kH

z5k

Hz

25kH

z50

kHz

100k

Hz

200k

Hz

1MH

z2M

Hz*

*

200m

V19

0mV

188.

716m

Vto

191.

284m

V

189.

685m

Vto

190.

315m

V

189.

875m

Vto

190.

125m

V

189.

875m

Vto

190.

125m

V

189.

875m

Vto

190.

125m

V

189.

856m

Vto

190.

144m

V

189.

647m

Vto

190.

353m

V

189.

000m

Vto

191.

000m

V

186.

000m

Vto

194.

000m

V

180.

100m

Vto

199.

900m

V

2V1.

9V1.

8871

6Vto

1.91

284V

1.89

685V

to1.

9031

5V

1.89

875V

to1.

9012

5V

1.89

875V

to1.

9012

5V

1.89

875V

to1.

9012

5V

1.89

856V

to1.

9014

4V

1.89

647V

to1.

9035

3V

1.89

000V

to1.

9100

0V

1.86

000V

to1.

9400

0V

1.80

100V

to1.

9990

0V

20V

19V

18.8

716V

to19

.128

4V

18.9

685V

to19

.031

5V

18.9

856V

to19

.014

4V

18.9

809V

to19

.019

2V

18.9

742V

to19

.025

8V

18.9

723V

to19

.027

7V

18.9

647V

to19

.035

3V

18.9

000V

to19

.100

0V

18.2

000V

to19

.800

0V

*

200V

190V

188.

709V

to19

1.29

1V

189.

678V

to19

0.32

2V

189.

849V

to19

0.15

1V

189.

802V

to19

0.19

8V

189.

735V

to19

0.26

5V

189.

716V

to19

0.28

4V

189.

640V

to19

0.36

0V

**

*

750V

750V

⎯74

8.12

Vto

751.

88V

748.

72V

to75

1.28

V

748.

49V

to75

1.51

V

748.

12V

to75

1.88

V

**

**

*

*CA

UT

ION

: Do

not e

xcee

d 2

× 10

7 V•H

z in

put.

**U

se w

ideb

and

optio

n an

d co

nnec

tions

whe

n pe

rfor

min

g 2M

Hz

test

s.N

OTE

: Lim

its sh

own

do n

ot in

clud

e ca

libra

tor u

ncer

tain

ty. R

eadi

ng li

mits

do

incl

ude

the

adde

r for

AC

Cou

plin

g of

the

inpu

t.


AC peak mode

1. Turn on the Moallow a one-housurements.

2. Connect the MoFigure 1-2. Be s2001 INPUT HIPUT LO as showcalibrator using the calibrator.


4. Select the ACVModel 2001, an

Do not use forming ACfor 5kHz-1pling for 20to set coupl

5. Select the AC peA. Press CONF

press ENTEB. Select PEAK

gs°C)

100Hz

189.875mVto

190.125mV1.89875V

to1.90125V18.9856V

to19.0144V189.849V

to190.151V748.72V

to751.28V

wn do not include

Rcuto

atetod M T a i s,.

p0,

inu


del 2001 to the calibrator, as shown inure to connect the amplifier HI to Model, and amplifier LO to Model 2001 IN-n. Connect the power amplifier to the



NOTE

REL to null offsets when per- volts tests. Use AC coupling

MHz tests. Use AC+DC cou-Hz tests. (Use CONFIG-ACVing.)

ak and filter modes as follows:IG then ACV, select AC-TYPE, then

R., then press ENTER.

Table 1-4Limits for low-frequency mode AC voltage verification

2001 ACV range

Applied voltage

Allowable readin(1 year, 18° to 28

10Hz 50Hz

200mV

2V

20V

200V

750V

190mV

1.9V

19V

190V

750V

189.837mVto

190.163mV1.89837V

to1.90163V18.9818V

to19.0182V189.811V

to190.189V

—

189.875mVto

190.125mV1.89875V

to1.90125V18.9856V

to19.0144V189.849V

to190.151V748.72V

to751.28V

NOTE: Specifications above 100Hz are the same as normal mode. Limits shocalibrator uncertainty.

C. Select FILTD. Select AVEE. Using the

parameter F. Press EXITG. If the FLT

able the fil6. Set the calibra

cy of 5kHz, an7. Verify that the

summarized in8. Repeat steps 6

quencies listed9. Repeat steps 6

750VAC rangeed in Table 1-5

Do not ap80V at 25at 1MHzoccur.

10. Set input couplfor a 20Hz inp

ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.as necessary to return to normal display.nnunciator is off, press FILTER to en-r.r output to 100.000mVAC at a frequen- allow the reading to settle.


nd 7 for 100mVAC at the remaining fre-n the table.through 8 for the 2V, 20V, 200V, and using the input voltages and limits stat-

CAUTION

ly more than 400V at 50kHz,kHz, 40V at 500kHz, or 20Vor instrument damage may

g to AC+DC, then repeat the proceduret signal.

1-9


1-10

1.8.3 DC curren

DC current accuracycurrents from a calibthen verifying that thate limits.

Follow the steps belo

Do not appAMPS inpfuse will bl

1. Turn on the Moone-hour warmments.

2. Connect the MoFigure 1-4. Be AMPS input, anas shown.


Table 1-5Limits for AC peak

2001 ACV range

Appliedvoltage*

r, 18° to 28°C)

Hz 500kHz 750kHz 1MHz

200mV 100mV mVomV

136.5mVto

146.3mV

132.2mVto

150.6mV

127.3mVto

155.5mV

2V 1V 4Vo4V

1.373Vto

1.455V

1.330Vto

1.498V

1.281Vto

1.547V

20V 10V 6Vo2V

13.65Vto

14.63V

13.22Vto

15.06V

12.73Vto

15.55V

200V 190V * ** ** **

750V 750V * ** ** **

*Calibrator voltage is gi**CAUTION: Do not ap†Use AC+DC input coupNOTE: Limits shown do

r a

Rcuto te co

tose M T a

c t

t verification

is checked by applying accurate DCrator to the instrument AMPS input ande current readings fall within appropri-

w to verify DCI measurement accuracy.

CAUTION

ly more than 2A, 250V to theut, or the amps protectionow.

del 2001 and the calibrator, and allow a-up period before making measure-

del 2001 to the calibrator, as shown insure to connect calibrator HI to thed connect calibrator LO to INPUT LO

2001 factory default conditions, as ex-raph 1.7.

voltage verification

20Hz†

Allowable Readings (1 yea

5kHz 25kHz 50kHz 100kHz 250k

139.9mVto

142.9mV

139.9mVto

142.9mV

139.9mVto

142.9mV

139.8mVto

143.0mV

139.6mVto

143.2mV

138.6t

144.2

1.407Vto

1.421V

1.407Vto

1.421V

1.407Vto

1.421V

1.406Vto

1.422V

1.404Vto

1.424V

1.39t

1.43

13.99Vto

14.29V

13.98Vto

14.30V

13.98Vto

14.30V

13.97Vto

14.31V

13.96Vto

14.32V

13.8t

14.4

267.8Vto

269.6V

267.8Vto

269.6V

267.7Vto

269.7V

267.6Vto

269.8V

267.4Vto

270.0V

*

⎯ 1054Vto

1067V

1053Vto

1068V

** ** *

ven as an RMS value. Model 2001 reading limits are peak AC values.ply more than 2 × 107V•Hzling for 20Hz tests only. (Use CONFIG-ACV to set coupling.)

not include uncertainty calibrator.

4. Set digital filteA. From normB. Select FILTC. Select AVED. Using the

parameter E. Press EXITF. If the FILT

able the fil5. Select the DC

range on the M6. Set the calibra

the reading to 7. Verify that the

summarized in8. Repeat steps 6

Table 1-6.9. Repeat the pro

tive currents ofble 1-6.

averaging as follows:l display, press CONFIG then DCI.

ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.as necessary to return to normal display.annunciator is off, press FILTER to en-r.urrent function (DCI) and the 200µAdel 2001. r output to +190.0000µADC, and allowttle.odel 2001 reading is within the limits

able 1-6. nd 7 for the remaining currents listed in

edure for each of the ranges with nega-he same magnitude as those listed in Ta-


lo

ppl

om

oe n

l gcu1od M c

a

tte

1.8.4 AC curren

AC current verificatAC currents at speciModel 2001 readings

Table 1-6Limits for DC curren

2001 DCI range

A

200µA

2mA

20mA

200mA

2A

19

1.9

19.

190

1

NOTES:1. Repeat procedure for n2. Reading limits shown

Figure 1-4Connections for DC

NEXT

DISPLAY

PREV

POWER

DCV ACV DCI A

REL TRIG STORE REC

INFO LOCAL CHAN SCA

19.00000 m

M

r (Output DC Current)

stalled.

LED is off).

Follow the steps be

Do not apAMPS infuse will b

1. Turn on the Mone-hour warments.

2. Connect the MFigure 1-5. BAMPS input, aas shown.

3. Restore Modeplained in para

4. Select the AC the Model 200

5. Set the calibratcy of 40Hz, an

6. Verify that thefor the presentble 1-7.

7. Repeat steps 41-7.

8. Repeat steps 4frequencies lis

t verification

ion is performed by applying accuratefic frequencies and then verifying that fall within specified limits.

t verification

pplied DC current

Reading limits(1 year, 18° to 28°C)

0.0000µA

00000mA

00000mA

.0000mA

.900000A

189.9000µAto

190.1000µA1.899200mA

to1.900800mA18.99200mA

to19.00800mA189.9010mA

to190.0990mA1.898200A

to1.901800A

egative currents.do not include calibrator uncertainty.

current verification

CI Ω2 Ω4 FREQ TEMP

ALL

N CONFIG MENU EXIT ENTER

RANGE

AUTOFILTER MATH

RANGE

2001 MULTIMETER

SENSEΩ 4 WIRE

HI

INPUT

LOINPUTS

CAL

500VPEAK

F R

FRONT/REAR2A 250V

AMPS

350VPEAK

1100VPEAK

ADC Output HI

InputLO

OutputLO

odel 2001

5700A Calibrato

Amps

Ground link in

Note: Use internal Guard (EX GRD

w to verify ACI measurement accuracy.

CAUTION

ly more than 2A, 250V to theut, or the current protectionow.


del 2001 to the calibrator, as shown insure to connect calibrator HI to thed connect calibrator LO to INPUT LO

2001 factory default conditions, as ex-raph 1.7.rrent function and the 200µA range on

. r output to 190.000µA AC at a frequen- allow the reading to settle.

odel 2001 reading is within the limitsurrent and frequency summarized in Ta-

nd 5 for each frequency listed in Table

hrough 7 for the remaining ranges andd in Table 1-7.

1-11


1-12

Table Limits

2001ra

2

2

20

Note: R


NEXT

DISPLAY

PREV

POWER

DCV ACV DCI

REL TRIG STORE

INFO LOCAL CHAN

190.0000

1-7 for AC current verification

ACI nge

Applied AC current

Reading limits (1 year, 18° to 28°C)

40Hz 100Hz 1kHz 10kHz

00µA 190.000µA 188.260µA to

191.740µA

189.560µA to

190.440µA

189.210µAto

190.790µA

189.020µAto

190.980µA

2mA 1.90000mA 1.88355mAto

1.91645mA

1.89657mAto

1.90344mA

1.89742mAto

1.90258mA

1.89742mAto

1.90258mA

0mA 19.0000mA 18.8355mAto

19.1645mA

18.9657mAto

19.0344mA

18.9742mAto

19.0258mA

18.9742mAto

19.0258mA

0mA 190.000mA 188.355mAto

191.645mA

189.657mAto

190.344mA

189.742mAto

190.258mA

189.685mAto

190.315mA

2A 1.90000A 1.88250Ato

1.91750A

1.89556Ato

1.90444A

1.89390Ato

1.90610A

1.89105Ato

1.90895A

eading limits shown do not include calibrator uncertainty.

current verification


RECALL

SCAN CONFIG MENU EXIT ENTER

RANGE

AUTOFILTER MATH

RANGE

2001 MULTIMETER

SENSEΩ 4 WIRE

HI

INPUT

LOINPUTS

CAL

500VPEAK

F R

FRONT/REAR2A 250V

AMPS

350VPEAK

1100VPEAK

μAAC RMSOutput HI

InputLO

OutputLO

Model 2001

5700A Calibrator (Output AC Current)

Amps

Ground link installed.

Note: Use internal Guard (EX GRD LED is off).


1.8.5 Resistance

Resistance verificatiresistance values to t2001 resistance read

Follow the steps belocuracy.

Do not apptween INP350V peakor instrume

20¾ - 200k¾ range

1. Turn on the Moone-hour warmments.

2. Set the calibratoon).

3. Using shielded 2001 to the calito connect calib2001 HI and LOLO) as shown.


5. Set operating mA. From normaB. Select FILTC. Select AVERD. Using the cu

parameter toE. Select OFFSF. Select ON, tG. Press EXIT

6. Set the calibratoing to settle. Vestated in Table 1

Resistance 5700A calibthan the staCalculated should be reibrator resis

verification

on is performed by connecting accuratehe instrument and verifying that Modelings are within stated limits.

w to verify resistance measurement ac-

CAUTION

ly more than 1100V peak be-UT HI and LO or more than between SENSE HI and LO,nt damage may occur.

verification


r for 4-wire resistance (external sense

4-wire connections, connect the Modelbrator, as shown in Figure 1-6. Be surerator HI and LO terminals to the Model

terminals (including SENSE HI and

2001 factory default conditions, as ex-raph 1.7.odes as follows:l display, press CONFIG then ¾4.

ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.ETCOMP, then press ENTER.hen press ENTER.to return to normal display.r to output 19.000¾, and allow the read-rify that the reading is within the limits-8.

NOTE

values available in the Modelrator may be slightly differentted nominal resistance values.limits stated in Table 1-8calculated based on actual cal-tance values.

7. Set the calibrator output to 190.000¾, and allow thereading to settle.

8. Verify that the reading is within the limits stated in Table1-8. (NOTE: Recalculate limits if calibrator resistance isnot exactly as listed.)

9. Repeat steps 11 and 12 for the 2k¾ through 200k¾ rang-es using the values listed in Table 1-8. NOTE: Turn off-set compensation off when testing the 200k¾ range (seestep 5).

Table 1-8Limits for resistance verification (20¾-200M¾ ranges)

2001 ¾ rangeApplied

resistanceReading limits

(1 year, 18° to 28°C)

20¾

200¾

2k¾

20k¾

200k¾

2M¾

20M¾

200M¾

19.0000¾

190.000¾

1.90000k¾

19.0000k¾

190.000k¾

1.90000M¾

19.0000M¾

100.000M¾

18.99849¾to

19.00151¾189.9880¾

to190.0120¾

1.899897k¾to

1.900103k¾18.99897k¾

to19.00103k¾189.9820k¾

to190.0180k¾1.899687M¾

to1.900313M¾18.98281M¾

to19.01719M¾97.9800M¾

to102.0200M¾

NOTES:1. Limits shown do not include calibrator uncertainty and are based on

absolute calibration values shown. Recalculate limits using Model2001 specifications if calibrator resistance values differ from nomi-nal values shown.

2. Use 4-wire connections and function for 20¾-200k¾ ranges. Use 2-wire connections and function for 2M¾-200M¾ ranges.

1-13


1-14

2M¾ – 200M¾ ran

1. Connect the DCwire connection

2. Set the calibratoff).

3. Set operating mA. From normaB. Select FILTC. Select AVERD. Using the cu

parameter toE. Press EXIT F. If the FILT

able the filte4. Select the Mode

2M¾ range.5. Set the calibrato

reading to settle6. Verify that the r

range stated in Tactual calibrator

7. Repeat steps 419.0000M¾) an

1G¾ range verifica

1. Mount the 1G¾box, as shown inana plugs withbe completely enbox. The resistonected to the tes

Figure 1-6Connections for res

NEXT

DISPLAY

PREV

POWER

DCV ACV DCI ACI Ω2


INFO LOCAL CHAN SCAN CONF

FILTE

+1. 900000 kΩ

Mod

or (Output 2-Wire Resistance)

ink installed.

e arapa

o5

a

Rcuto teio

Hin M a

ge verification

calibrator and Model 2001 using the 2-s shown in Figure 1-7.or to the 2-wire mode (external sense

odes as follows:l display, press CONFIG then ¾2.

ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.to return to normal display.annunciator is off, press FILTER to en-r.l 2001 ¾2 function, and change to the

r to output 1.90000M¾, and allow the.eading is within the limits for the 2M¾able 1-8. (NOTE: Recalculate limits if

resistance differs from value shown.) through 6 for the 20M¾ (outputd 200M¾ (output 100.000M¾) ranges.

tion

resistor and the banana plugs to the testn Figure 1-8. Be sure to mount the ba- the correct spacing. The resistor shouldclosed in and shielded by the metal testr LO lead should be electrically con-t box to provide adequate shielding.

istance verification (20¾-200k¾ ranges)

Ω4 FREQ TEMP

IG MENU EXIT ENTER

RANGE

AUTOR MATH

RANGE

2001 MULTIMETER

SENSEΩ 4 WIRE

HI

INPUT

LOINPUTS

CAL

500VPEAK

F R

FRONT/REAR2A 250V

AMPS

350VPEAK

1100VPEAK

Input HI

Output HI

InputLO Output

LO

el 2001

5700A Calibrat

Note: Use shielded cable to minimize noise.Disable calibrator external sense mode.

Use internal Guard (EX GRD LED is off).

Ground l

2. Characterize thbetter using anRecord the cha1-9. Also, coming the formul

The valueexceed 1.0

3. Set operating mA. From normB. Select FILTC. Select AVED. Using the

parameter E. Press EXITF. If the FILT

able the fil4. Select the 2-w

range on the M5. Connect the 1G

to the INPUT Allow the read

6. Verify that theyou calculated

1G¾ resistor to within ±10,000ppm orccurate megohmmeter (see Table 1-1).cterized value where indicated in Table

ute the limits based on the value of R us-at the bottom of the table.

NOTE

f the 1G¾ resistor should notG¾.

odes as follows:l display, press CONFIG then ¾2.

ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.to return to normal display.annunciator is off, press FILTER to en-r.re ohms function (¾2) and the 1G¾del 2001. ¾ resistor test box (from steps 1 and 2)I and LO terminals of the Model 2001.g to settle.odel 2001 reading is within the limits

nd recorded in Table 1-9.


Figure 1-7Connections for res

NEXT

DISPLAY

PREV

POWER

DCV ACV DCI

REL TRIG STORE R

INFO LOCAL CHAN S

190.0000

M

Figure 1-81G¾ resistor test bo

istance verification (2M¾ - 200M¾ ranges)


ECALL

CAN CONFIG MENU EXIT ENTER

RANGE

AUTOFILTER MATH

RANGE

2001 MULTIMETER

SENSEΩ 4 WIRE

HI

INPUT

LOINPUTS

CAL

500VPEAK

F R

FRONT/REAR2A 250V

AMPS

350VPEAK

1100VPEAK

kΩ

odel 2001Input HI

Output HI

InputLO

OutputLO

Note: Use shielded cables to minimize noise. Enable calibrator external sense mode. Use internal Guard (EX GRD LED is off).

Sense HI

Sense LO

Sense HI

Sense LO

Ground link installed.

5700A Calibrator (Output 4-wire Resistance)

x construction

InsulatedPlug

MetalTest Box

0.75"

HI

LO

BananaPlugs

Non-insulated Plug

1GΩ Resistor (Keithleypart # R-289-1G)

Note: Resistor must be accurately characterized before use (see text).

Table 1-9Limits for resistance verification (1G¾ range)

Characterized resistor (R) Reading limit (1 year, 18° to 28°C)*

____________ G¾ _________G¾ to _________G¾

*1 Year limits = R ± (0.04R + 100,000)Where R = characterized value of 1G¾ resistor.

1-15


1-16

1.8.6 Frequency

Frequency accuracy an accurate frequencthen verifying that thlimits.

Use the procedure bment accuracy of the

1. Connect the freINPUT terminal

2. Turn on both inup period before

3. Set the synthesiz

FREQ: 1HzAMPTD: 5V p-OFFSET: 0VMODE: CONTFCTN: sine wav

4. Restore Model paragraph 1.7.

5. Press FREQ to measurement m

siFXT

,

Mn

sidin

if

Figure 1-9Connections for freq

NEXT

DISPLAY

PREV

POWER

DCV ACV

REL TRIG

INFO LOCAL

1.0000

accuracy verification

verification is performed by connectingy source to the Model 2001 inputs, ande frequency readings are within stated

elow to verify the frequency measure- Model 2001.

quency synthesizer to the Model 2001s, as shown in Figure 1-9.struments, and allow a one-hour warm- measurement.er operating modes as follows:

p

e

2001 factory defaults, as explained in

place the Model 2001 in the frequencyode.

6. Set maximum A. Press CONB. Select MAC. Select VOLD. Select 10VE. Press EXIT

7. Verify that thethe limits show

8. Set the syntheTable 1-10, anreading is with

Table 1-10Frequency ver

Synthesizerfrequency

1Hz10Hz

100Hz1kHz

10kHz100kHz

1MHz10MHz

15MHz

uency accuracy verification

DCI ACI Ω2 Ω4 FREQ TEMP

STORE RECALL

CHAN SCAN CONFIG MENU EXIT ENTER

RANGE

AUTOFILTER MATH

RANGE

2001 MULTIMETER

SENSEΩ 4 WIRE

HI

INPUT

LOINPUTS

CAL

500VPEAK

F R

FRONT/REAR2A 250V

AMPS

350VPEAK

1100VPEAK

MHz

Model 20013940 MULTIFUNCTION SY

BNC-to-DualBanana Plug

Adapter

50Ω BNC Coaxial Cable

Model 39

gnal level to 10V as follows:IG then FREQ.-SIGNAL-LEVEL, then press ENTER.AGE, then press ENTER.

then press ENTER.to return to normal display.odel 2001 frequency reading is within

in the first line of Table 1-10.zer to each of the frequencies listed in verify that the Model 2001 frequency the required limits.

ication limits

Reading limits(1 year, 18° to 28°C)

0.9997Hz to 1.0003Hz9.997Hz to 10.003Hz99.97Hz to 100.03Hz

0.9997kHz to 1.0003kHz9.997kHz to 10.003kHz99.97kHz to 100.03kHz

0.9997MHz to 1.0003MHz9.997MHz to 10.003MHz14.995MHz to 15.005MHz

NTHESIZER

40 Synthesizer

MainFunctionOutput


1.8.7 Temperatu

When using thermocperature by measurithen calculating thethe instrument compsuring the resistanceperature from the res

Since the instrumentresistance measuremDCV and resistanceaccuracy of corresThus, it is not necessature verification protion procedures showin those areas. HowModel 2001 does inuse the following pro

Selecting the temp

Follow the steps belosor:

1. From normal dis2. Select SENSOR3. Select 4-WIRE

then press ENTE4. Select the type o

to test, then retmenu.

5. Select UNITS, t6. Select DEG-C, t7. Press EXIT as n8. Press the TEMP

perature displaylow on how toreadings.

Thermocouple tem

To check thermocoupate DC voltage listePUT jacks using a pone used to verify Dand check the displalow-thermal cables ftor and the Model 20

re reading checks

ouples, the Model 2001 displays tem-ng the DC thermocouple voltage, and corresponding temperature. Similarly,utes RTD temperature readings by mea- of the RTD probe and calculating tem-istance value.

computes temperature from DCV andents, verifying the accuracy of those

measurement functions guarantees theponding temperature measurements.ary to perform a comprehensive temper-cedure if DCV and resistance verifica- the instrument meets its specifications

ever, those who wish to verify that the fact properly display temperature cancedure to do so.

erature sensor

w to select the type of temperature sen-

play, press CONFIG then TEMP., then press ENTER.RTD or THERMOCOUPLE as desired,R.

f RTD probe or thermocouple you wishurn to the CONFIG TEMPERATURE

hen press ENTER.hen press ENTER.ecessary to return to normal display. key to place the Model 2001 in the tem- mode. Refer to further information be- check thermocouple and RTD probe

perature reading checks

le readings, simply apply the appropri-d in Table 1-11 to the Model 2001 IN-recision DC voltage source (such as theC voltage accuracy in paragraph 1.8.1),yed temperature reading. Be sure to useor connections between the DC calibra-01 when making these tests.

NOTE

The voltages shown are based on a 0°Creference junction temperature. Use CON-FIG TEMP to set the default referencejunction temperature to 0°C.

Table 1-11Thermocouple temperature reading checks

Thermo-couple type

Applied DC voltage*

Displayedtemperature (°C)

J -4.215mV0mV

1.277mV5.268mV

42.283mV

-90.5 to -89.5-0.5 to +0.524.5 to 25.599.5 to 100.5

749.5 to 750.5

K -3.242mV0mV

1.000mV4.095mV

54.125mV

-90.5 to -89.5-0.5 to +0.524.5 to 25.599.5 to 100.5

1349.5 to 1350.5

T -3.089mV0mV

0.992mV4.277mV

20.252mV

-90.5 to -89.5-0.5 to +0.524.5 to 25.599.5 to 100.5

389.5 to 390.5

E -4.777mV0mV

1.495mV6.317mV

75.608mV

-90.6 to -89.4-0.6 to +0.624.4 to 25.699.4 to 100.6

989.4 to 990.6

R 0.054mV0.647mV4.471mV

20.878mV

7 to 1397 to 103

497 to 5031747 to 1753

S 0.055mV0.645mV4.234mV

18.504mV

7 to 1397 to 103

497 to 5031747 to 1753

B 0.632mV1.241mV4.833mV

13.585mV

355 to 365495 to 505

995 to 10051795 to 1805

*Voltages shown are based on 0°C reference junction temperature. Use CONFIG-TEMP menu to set default reference junction to 0°C.

1-17


1-18

RTD Temperature

Use a precision decaulate probe resistancBe sure to use 4-wiretance box and the M

at

reading checks

de resistance box (see Table 1-1) to sim-es at various temperatures (Table 1-12). connections between the decade resis-

odel 2001.

Table 1-12RTD probe temper

RTD probe type

PT385(∝=0.00385055)

PT3916(∝=0.00392)

ure reading checks

Applied resistance

Displayed temperature (°C)

64.30¾100¾

109.73¾138.51¾313.71¾

-90.08 to -89.92-0.08 to +0.0824.92 to 25.08

99.92 to 100.08599.86 to 600.14

63.68¾100¾

109.90¾139.16¾266.94¾

-90.08 to -89.92-0.08 to +0.0824.92 to 25.08

99.92 to 100.08449.86 to 450.14

2Calibration

2.1 Introduc

This section gives dModel 2001. There a

• Comprehensive

• AC self-calibrat

• Low-level calib

Comprehensive caliequipment to supplyues. AC self-calibratcan be performed at ibration is normally instrument is manufafield.

Low-level field only ifpaired, or idures cannostated speci

Section 2 includes th

2.2 Environmentand humidity l

2.3 Warm-up perModel 2001 shibration.

2.4 Line power: Scalibrating the

lo

sbbrp

erc f

iats

br bs

libt

m

ur±he

tion

etailed procedures for calibrating there three types of calibration procedures:

calibration

ion

ration

bration requires accurate calibration precise DC voltages and resistance val-ion requires no external equipment andany time by the operator. Low-level cal-performed only at the factory where thectured and is not usually required in the

NOTE

calibration is required in the the Model 2001 has been re-f the other calibration proce-t bring the instrument within

fications.

e following information:

al conditions: States the temperatureimits for calibration.

iod: Discusses the length of time theould be allowed to warm up before cal-

tates the power line voltage limits when unit.

2.5 Calibration with the CAL

2.6 IEEE-488 buSummarizes a simple caliimportant asthe bus.

2.7 Calibration that might ochow to check

2.8 Comprehens(user) calibrIEEE-488 bu

2.9 AC self-calition process,IEEE-488 bu

2.10 Low-level calow-level calquired only a

2.2 Environ

Calibration procedtemperature of 23°than 80% unless ot

ck: Explains how to unlock calibrationswitch.

calibration commands and program:us commands used for calibration, listsation program, and also discusses otherects of calibrating the instrument over

rors: Details front panel error messagesur during calibration and also explainsor errors over the bus.

ve calibration: Covers comprehensiveion from the front panel and over the.

ation: Discusses the AC user calibra-oth from the front panel and over the

.

ibration: Explains how to perform theration procedure, which is normally re-the factory.

ental conditions

es should be performed at an ambient 1°C, and at a relative humidity of lessrwise noted.

2-1

Calibration

2-2

2.3 Warm-up

The Model 2001 mushour before calibratito temperature extregraph 2.2), allow addstabilize. Typically, iunit that is 10°C (1range.

The calibration equiup for the minimum

2.4 Line pow

The Model 2001 sholine voltage in the raor 400Hz.

2.5 Calibratio

Calibration can be unCAL switch. Removaccess hole before capleting calibration.

2.5.1 Comprehe

Before performing counlock calibration bcessed CAL switch. ing message:

CALIBRATIOComprehensive

If you attempt compout performing the usage will be displaye

CALIBRATIOPress the CAL s

Note that it is not neconly self-calibration

If the CAL switch ilocked, the following

CAL ALREADCycle Power to r

period

t be allowed to warm up for at least oneon. If the instrument has been subjectedmes (outside the range stated in para-itional time for internal temperatures tot takes one additional hour to stabilize a8°F) outside the specified temperature

pment should also be allowed to warmperiod specified by the manufacturer.

er

uld be calibrated while operating from ange of 90-134V or 180-250V at 50, 60,

n lock

locked by pressing in on the front panele the sticker that covers the CAL switchlibration. Replace the sticker after com-

nsive calibration lock

mprehensive calibration, you must firsty momentarily pressing in on the re-The instrument will display the follow-

N UNLOCKEDcal can now be performed

rehensive or low-level calibration with-nlocking procedure, the following mes-d:

N LOCKEDwitch to unlock.

essary to unlock calibration for the AC-procedure.

s pressed with calibration already un- message will be displayed:

Y UNLOCKEDelock cal switch.

2.5.2 Low-level calibration lock

To unlock low-level calibration, press in and hold the CALswitch while turning on the power. Low-level calibration canthen be performed.

NOTE

Do not unlock low-level calibration unlessyou have the appropriate equipment andintend to perform low-level calibration.See paragraph 2.10 for low-level calibra-tion details.

2.5.3 IEEE-488 bus calibration lock status

You can determine the status of either calibration lock overthe bus by using the appropriate query. To determine com-prehensive calibration lock status, send the following query:

:CAL:PROT:SWIT?

The instrument will respond with the calibration lock status:

0: comprehensive calibration locked1: comprehensive calibration unlocked

To determine the status of the low-level calibration lock,send the following query:

:CAL:PROT:LLEV:SWIT?

Responses to this lock query are:

0: low-level calibration locked1: low-level calibration unlocked

Refer to paragraph 2.6.1 below and Section 3 for more de-tails on calibration commands.

2.6 IEEE-488 bus calibration commands and program

2.6.1 Calibration commands

Table 2-1 summarizes calibration commands used to cali-brate the instrument over the IEEE-488 bus (GPIB). For acomplete description of calibration commands refer to Sec-tion 3.

Calibration

Table 2-1IEEE-488 bus calibr

Command

:CALibration:PROTected

:LOCK:SWITch?

:SAVE:DATA?:DATE “

tion

Calibration root command.All commands in this subsystem are protected by the CAL switch.

Lock out calibration (opposite of enabling cal with CAL switch).Request comprehensive CAL switch state.

(0 = locked; 1 = unlocked)Save cal constants to EEPROM.Download cal constants from 2001.Send cal date to 2001.Request cal date from 2001.Send next due cal date to 2001.Request next due cal date from 2001. Low-level calibration subsystem.

Request low-level CAL switch state. (0 = locked; 1 = unlocked)

20V AC at 1kHz step. 20V AC at 30kHz step. 200V AC at 1kHz step. 200V AC at 30kHz1.5V AC at 1kHz step. 0.2V AC at 1kHz step. 5mV AC at 100kHz step. 0.5mV AC at 1kHz step.+2V DC step. -2V DC step. 0V DC step. 20mA AC at 1kHz step. +0.2A DC step. +2A DC step. 2V AC at 1Hz step. Calculate low-level cal constants.

User calibration subsystem. Low-thermal short calibration step. +2V DC calibration step. +20V DC calibration step. 20k¾ calibration step. 1M¾ calibration step. Open circuit calibration step. Calculate DC cal constants.

All commands in this subsystem are not protected by CAL switch. Perform user AC calibration (disconnect all cables)

s indicated short form of each command. For example, instead of sending “:CALibration:PROTected:LOCK”, you can send

2-3

Calibration

2-4

2.6.2 Required

When calibrating froautomatically prompibration steps. Whehowever, the calibratin which commands must receive calibracovered below.

Comprehensive ca

The following rulescommands to perforules assume that coabled by pressing theturned on.

1. The Model 200:CAL:PROT:DC:CAL:PROT:DCCommands in tsent in any ordemand.

2. The Model 2001before it will exe• All :CAL:PRO

• The :CAL:PR

• The :CAL:PR

Low-level calibrati

The following rules mands to perform lothat low-level calibrCAL switch while tu

1. The Model 200:CAL:PROT:DC:CAL:PROT:DCCommands in texecuted in any

2. The Model 200:CAL:PROT:DC:CAL:UNPR:ACthe low-level co

3. There are a totalwhich must:CAL:PROT:LLThe 15 low-leveorder (step 1 thr

Step 1 is alwaysrestart the low-lSimilarly, the pr

order of command execution

m the front panel, the Model 2001 willt you in the correct order for various cal-n calibrating over the IEEE-488 bus,ion sequence is determined by the orderare received. Note that the Model 2001tion commands in a specific order as

libration

must be observed when sending busrm comprehensive calibration. Thesemprehensive calibration has been en- CAL switch after instrument power is

1 must execute all commands in the subsystem before the:CALC command will be executed.he :CAL:PROT:DC subsystem can ber with the exception of the CALC com-

must execute the following commandscute the :CAL:PROT:SAVE command:T:DC subsystem commands.

OT:DATE command.

OT:NDUE command.

on

must be observed when sending com-w-level calibration. These rules assumeation has been enabled by pressing therning on instrument power.

1 must execute all commands in the subsystem before the:CALC command will be executed.he :CAL:PROT:DC subsystem can beorder (except for CALC).1 must execute all commands in the subsystem, and it must execute the command before it will execute any of

mmands. of 15 low-level calibration steps, all of be executed before theEV:CALC command will be executed.l calibration steps must be executed inough step 15).

a valid next step, which allows you toevel calibration procedure at any time.esent step is always a valid next step, al-

lowing you to repeat a calibration step if necessary. Thenext low-level step in numerical order is always valid.

4. The Model 2001 must execute the following commandsbefore it will execute the :CAL:PROT:SAVE command:• All :CAL:PROT:DC subsystem commands.

• The :CAL:UNPR:ACC command.

• All :CAL:PROT:LLEV subsystem commands.

• The :CAL:PROT:DATE command.

• The :CAL:PROT:NDUE command.

2.6.3 Example calibration command program

Program 2-1 below will allow you to type in calibration com-mands and send them to the instrument. If the command is aquery, the information will be requested from the instrumentand displayed on the computer screen. The program uses the*OPC command to detect the end of each calibration step, asdiscussed in paragraph 3.6 in Section 3.

NOTE

See Appendix B for a summary of com-plete calibration programs.

Program requirements

In order to use this program, you will need the following:

• IBM PC, AT, or compatible computer.

• IOtech Personal488, CEC PC-488, or National Instru-ments PC-II or IIA IEEE-488 interface for the comput-er.

• Shielded IEEE-488 cable (Keithley Model 7007)

• MS-DOS or PC-DOS version 3.3 or later.

• Microsoft QuickBASIC, version 4.0 or later.

• IOtech Driver488 IEEE-488 bus driver, Rev. 2.3 or lat-er. (NOTE: Later versions of Driver488 may not sup-port other manufacturers’ interface cards.)

Program instructions

1. With the power off, connect the Model 2001 to theIEEE-488 interface of the computer.

2. Turn on the computer and the Model 2001. Press in onthe CAL switch to unlock calibration.

3. Make sure the Model 2001 is set for a primary addressof 16. You can check or change the address as follows:A. Press MENU, select GPIB, then press ENTER.B. Select MODE, then press ENTER.C. Select ADDRESSABLE, and press ENTER.

Calibration

D. If the addressary to retur

E. To change thto set the aENTER. Premal display.

4. Make sure thatproperly initializ

5. Enter the Quickprogram. After to run it.

6. Type in the desicedure (see para

2.7 Calibratio

The Model 2001 chstants are calculated,er calibration may ocparagraphs summaricuss bus error report

e

ea

mur Rga

e

r

m o dr

on sfo

PE

OpOpIPPPPCCIPPCPIIGQPPLuP

s is set correctly, press EXIT as neces-n to normal display. e address, use the cursor and range keys

ddress to the desired value, then pressss EXIT as necessary to return to nor-

the IEEE-488 bus driver software ised.

BASIC editor, and type in the examplechecking for errors, press +

red calibration command from the pro-graph 2.8.3), then press .

n errors

ecks for errors when calibration con- minimizing the possibility that improp-cur due to operator error. The followingze calibration error messages and dis-ing.

2.7.1 Front pan

Table 2-2 summarizthat may occur becdure.

There are could occproblems.plete listinerror mess

Table 2-2Calibration error m

Error ID code Erro

-222+438+439+440

ParaDateNextCalib

NOTE: This table lists some external problemdure. See Appendix C

rogram 2-1xample Program to Send Calibration Commands

PEN “\DEV\IEEEOUT” FOR OUTPUT AS #1 ‘ Open Iath.PEN “\DEV\IEEEIN” FOR INPUT AS #2 ‘ Open ath.OCTL #1, “BREAK” ‘ Reset inRINT #1, “RESET” ‘ Warm staRINT #1, “REMOTE 16” ‘ Put unitRINT #1, “TERM LF EOI” ‘ Set termRINT #1, “OUTPUT 16;*RST;*ESE 1” ‘ InitialiLS ‘ Clear CRmd: LINE INPUT “COMMAND? ”; A$F RIGHT$(A$, 1) = “?” THEN GOTO Query ‘ Check foRINT #1, “OUTPUT 16;*CLS” ‘ Clear stRINT #1, “OUTPUT 16;”; A$; “;*OPC” ‘ Send comal:RINT #1, “SPOLL 16” ‘ Check forNPUT #2, S F (S AND 32) = 0 THEN GOTO Cal:OTO Cmduery:RINT #1, “OUTPUT 16;”; A$ ‘ Send queRINT #1, “ENTER 16” ‘ Address INE INPUT #2, B$ ‘ Input nit.RINT B$

l error message summary

s front panel calibration error messagesuse of improper connections or proce-

NOTE

any more error messages that because of internal hardwareefer to Appendix C for a com- of all Model 2001 calibrationges.

ssages

message

eter data out of range.f calibration not set.ate of calibration not set.ation process not completed.

ly those errors

model 2001 multimeter calibration manualg-may2004...manual print history the print history shown...

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