296 AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
Return the gas analyzer to service:
14 Close the system housing so that it is tight.
Light penetration during operation leads to erroneous measurement
values and overranging ("Intensity" status message).
15 Turn on the gas analyzer power supply.
16 Wait for the warm-up phase to end. Turn on the sample gas supply.
17 Check linearity.
Aluminum sample cell with center connection
An aluminum sample cell with center connection is built-in in the Limas21 UV
analyzer module with Class 2 NO measurement ranges. In this version, the
sample gas inlet is in the center and the sample gas outlets are at the ends
of the sample cell. This has to be observed when re-installing the sample cell
after cleaning.
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