Teledyne 200AH 用户手册

 

Because of the instability of ozone, it is necessary to generate this gas inside the analyzer. The 
ozone generation module consists of a switching power supply that drives a high voltage 
transformer and silent discharge tube.  The generator’s dry air supply uses a membrane drier to 
supply air with a dew point of 0

C or less. The exhaust side of the membrane is connected to the 

vacuum manifold at the rear of the instrument. A complete description and service requirements 
for this module can be found in Section 9.3.6. 

Normal room air contains enough water vapor to damage the generator and components 
downstream, therefore the ozone GENERATOR MAY NOT TURN ON IMMEDIATELY 
AFTER POWER UP. The delay is built into the instrument to allow the dryer to start operating 
and purge the system with dry air. Table 4-3 details the conditions for turning on the ozone 
generator. 

< 1 hour 

ON at power-up 

Gen ON immediately after power-up. 

> 1 hour 

OFF at power-up 

Wait 30 min, then turn gen ON. 

 

The converter is a length of 1/8” tubing heated to 700

C. The converter's function is to reduce 

nitrogen dioxide (NO

2

) to nitric oxide (NO). The temperature control for this module is done by 

the computer. To accurately measure converter efficiency, there should be oxygen present in the 
NO

2

 calibration gas.