a step-by-step guide to field calibration

A Step-By-Step Guide to A Step-By-Step Guide to Field CalibrationField Calibrationfor Gilian Air Sampling Pump

Items requiredItems required

• Sampling Pump• Collection Media• Gilibrator Calibrator

Field CalibrationField Calibration

• A Field Calibration Consists of Two Parts – The Pre-Calibration (Pre-Cal) is done before the sample is taken

– The Post-Calibration (Post Cal) is done after the sample is taken

The Pre-CalThe Pre-Cal

• The Pre-Cal is used to set the desired sample flow rate, and to verify it on an air flow calibrator.

Conducting the Pre-CalibrationConducting the Pre-Calibration

The Pre-CalThe Pre-Cal

• Set the Flow Rate• Observe the Flow

Rate• Record the Flow Rate• An average of 6 to 10

Gilibrator readings is recommended

Run The SampleRun The Sample

• Pump is placed on the belt

• Sample media is placed on the lapel (Breathing Zone) and pointed downward

• Record the Start Time• Record the End Time

The Post-CalThe Post-Cal

• The Post-Cal is used to obtain the final flow rate and to verify that the flow rate stayed within +/- 5% of the set flow.

The Post-CalThe Post-Cal

• Observe the Final Flow Rate

• Record the Final Flow Rate

• An average of 6 to 10 Gilibrator readings is recommended

Average Flow RateAverage Flow Rate

• The Pre-Cal flow rate and the Post-Cal flow rate may be averaged to obtain an average flow rate for the sample.

Determining the Average Flow RateDetermining the Average Flow Rate

• Pre-Cal Flow Rate + Post Cal Flow Rate = Avg Flow Rate 2

Cyclone CalibrationCyclone Calibration

• The Gilian 10mm nylon cyclone has only an exit fitting and must be placed inside a calibration jar to accept the Gilibrator.

Low Flow ModulesLow Flow Modules

• Calibrating with low flow modules

Constant Flow ModulesConstant Flow Modules

• Set pump flow to 1500cc/min

• Turn module switch on• Connect sample

tubing to pump• Adjust desired flow

rate at module• Read flow rate at

Gilibrator

Multi-Flow ModulesMulti-Flow Modules

• Set pump to 1500 cc/min

• Turn module switch on• Connect sample

tubing to pump• Adjust flow rate at

holder• Adjust each tube twice• Read the flow rates

Further InformationFurther Information

• For detailed information on any of the Gilian products, please consult the product operation manuals.

• Manuals may be accessed through our web site at www.Sensidyne.com

Thank YouThank You

Sensidyne, LP.

Clearwater, FL, USA

www.Sensidyne.com

Fax 727-539-0550

Phone +1 727-530-3602 / 800-451-9444