Teledyne 703E User Manual

Page of 283
TELEDYNE API 
Theory of Operation 
M703E Calibrator Operator’s Manual 
9.5.3.1. O
3
 Generator Temperature Control 
In order to operate at peak efficiency the UV lamp of the M703E’s O
3
 generator is maintained at a constant 
48ºC.  if the lamp temperature falls below 43ºC or rises above 53ºC a warning is issued by the calibrators CPU. 
This temperature is controlled as described in the section on the relay PCA (see Section 9.2.3.2).  The location 
of the thermistor and heater associated with the O
3
 generator is shown below:  
UV Lamp 
UV Lamp 
Thermistor 
O
3
 Generator  
Heater Control PCA 
(Heater is located beneath 
the PCA)
 
 
 
 
Figure 9-17: 
O
3
 Generator Temperature Thermistor and DC Heater Locations 
 
 
 
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