O 3 Generator - Teledyne T200 Operation Manual

Teledyne API – T200 NO/NO
12.7.15. O GENERATOR
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12.7.15.1. O GENERATOR OVERRIDE
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06858E DCN7057
/NO Analyzer Operation Manual
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The ozone generator can fail in two ways, electronically (printed circuit board) and
functionally (internal generator components). Assuming that air is supplied properly to
the generator, the generator should automatically turn on 30 minutes after the instrument
is powered up or if the instrument is still warm. See Section 13.2.3 for ozone generator
functionality. Accurate performance of the generator can only be determined with an
ozone analyzer connected to the outlet of the generator. However, if the generator
appears to be working properly but the sensitivity or calibration of the instrument is
reduced, suspect a leak in the ozone generator supply air.
A leak in the dryer or between the dryer and the generator can cause moist, ambient air
to leak into the air stream, which significantly reduces the ozone output. The generator
will produce only about half of the nominal O
ambient air instead of dried air. In addition, moist supply air will produce large amounts
of nitric acid in the generator, which can cause analyzer components downstream of the
generator to deteriorate and/or causes significant deposit of nitrate deposits on the
reaction cell window, reducing sensitivity and causing performance drift. Carry out a
leak check as described earlier in this Section.
This feature allows the user to manually turn the ozone generator off and on. This
should be done before disconnecting the generator, to prevent ozone from leaking out, or
after a system restart if the user does not want to wait for 30 minutes during warm-up
time. To access this feature press the following buttons: (Also note that the ozone
generator does not turn on if the ozone flow conditions are out of specification (e.g., if
there is no flow through the system or the pump is broken).
Troubleshooting & Service
concentration when run with moist,
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