Teledyne MODEL T703 Manual Do Utilizador

Basic electronic calibration of the T703 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). 

 

The accuracy of calibration gas produced by the T703 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 API’s 

Model 701 Zero Air Generator) is required. 

 

  

07223B DCN6378