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TELEDYNE API
M703E Calibrator Operator’s Manual M703E Calibration and Verification
8. M703E CALIBRATION AND VERIFICATION
Basic electronic calibration of the M703E Calibrator is performed at the factory. Normally there is no need to
perform this factory calibration in the field however, the performance of several of the instruments key
subsystems should be verified periodically and if necessary adjusted. These subsystems are:
O
3
Photometer: The O
3
photometer performance should be periodically verified against an external
standard (see Section 8.1).
O
3
Generator: The O
3
generator should be periodically calibrated (see Section 8.2).
8.1. VERIFYING AND CALIBRATING THE M703E’S O
3
PHOTOMETER
The accuracy of calibration gas produced by the M703E depends entirely on the accuracy of the photometer;
therefore, it is very important that the photometer is operating properly and accurately.
The verification procedure can be performed using the instruments internal O
3
generator (see Figure 8-1) or an
external source of O
3
(see Figure 8-2). In either case, an external source of zero air (such as a Teledyne
Instruments’ Model 701 Zero Air Generator) is required.
8.1.1. SETUP FOR VERIFYING AND CALIBRATING THE O
3
PHOTOMETER
Note
This operation requires an external reference photometer.
05744 Rev B 113