Chapter 3,
Calibration and Operation
Introduction
Aspirated Sampling Module calibration uses the Ultima X Gas Monitor
calibration procedure. Refer to the Ultima X Gas Monitor instruction
manual and follow the procedure below:
Perform the calibration procedure regularly and maintain a log of
calibration adjustments. Increase the frequency of calibration when any
calibration shows as much as 10% difference from the test gas
concentration. More frequent calibrations may be required when the
Aspirated Sampling Module is new or when the sensor is approaching
its end of life. Also, perform the calibration procedure when installing or
changing the power source, sensor, or control instrumentation.
The necessary frequency of calibration depends on the operating time
and chemical exposures of the sensors. Newly installed units or new
sensors should be calibrated more often until the calibration records
prove sensor stability. The calibration frequency can then be reduced to
the schedule set by the safety officer or facility manager.
If this calibration procedure cannot be performed at any step, consult
Section 4, "Troubleshooting Guidelines," localize the problem and
replace the inoperative component.
MSA offers periodic service that is available on a contract basis; for
more information, please call MSA at 1-800-MSA-INST.
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