136 AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B
Operation
Ready to perform measurements
At the end of the warm-up phase the gas analyzer is ready to carry out
measurements.
Verify the calibration
The gas analyzer is calibrated ex works. However, transport stresses and the
pressure and temperature conditions at the installation site may influence
the calibration. Thus it is recommended to verify the gas analyzer calibration
at the installation location.
Turn on the sample gas supply
The sample gas supply should be turned on only after calibration.
Adjusting sample gas flow rate
Analyzer module Sample gas flow rate
Caldos25 10 to 90 l/h (for option T90 < 6 s: max. 90 to 200 l/h)
Caldos27 10 to 90 l/h min. 1 l/h
Fidas24 80 to 100 l/h with atmospheric pressure (1000 hPa)
Fidas24 NMHC 80 to 100 l/h with atmospheric pressure (1000 hPa)
Limas11 IR 20 to 100 l/h
Limas21 UV 20 to 100 l/h
Limas21 HW 20 to 90 l/h
Magnos206 30 to 90 l/h
Magnos28 30 to 90 l/h
Magnos27 20 to 90 l/h
Uras26 20 to 100 l/h
ZO23 5 to 10 l/h The flow rate must be kept constant to
±0.2 l/h in this range. The sample gas
must be taken from a bypass at zero
pressure.
Adjusting reference gas flow rate
In the Caldos25 and Uras26 analyzer module versions with flowing reference
gas, the sample gas flow rate and the reference gas flow rate must be set to
the optimal value.
For special applications of the Caldos25 the reference gas flow rate must be
set to lower values down to 1 l/h.
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