AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B 63
Magnos27: Preparation for installation
Installation site
Ambient temperature
During operation with analyzer module installed in a system housing
+5 to +45 °C without electronics module
+5 to +45 °C with electronics module or with power supply only
+5 to +50 °C without electronics module or Uras26 and version with
sample chamber direct connection
Vibrations/shocks
max. ±0.04 mm at 5 to 60 Hz
Sample gas
Sample gas inlet conditions
Temperature The dew point of the sample gas must be at least 5 °C
lower than the lowest ambient temperature in the overall
sample gas path. Otherwise, a sample gas cooler or con-
densate trap is required.
When there is a direct sample chamber connection the
maximum sample gas dew point is 55 °C.
Fluctuations in water vapor content cause volume errors.
Pressure The analyzer module is operated under atmospheric pres-
sure; the sample gas outlet is open to atmosphere. Inter-
nal pressure drop < 5 hPa with standard flow rate 60 l/h.
Permissible absolute pressure range: 800 to 1250 hPa.
Operation under lower absolute pressure (e.g. at altitudes
above 2000 m) on request. Overpressure in the sample
chamber max. 100 hPa.
Flow 20 to 90 l/h
Remark: Sample gas temperature, pressure and flow rate should be main-
tained constant to such a degree that the fluctuation influence on the accu-
racy of measurement is acceptable (see also chapter "Analyzer module oper-
ating data" (see page 346)).
Flammable gases
The gas analyzer may not be used for the measurement of flammable gases.
Test gases
Zero-point calibration
Oxygen-free process gas or Nitrogen
End-point calibration
Process gas with a known oxygen concentration or a substitute gas, e.g.
dried air
Dew point
The dew point of the test gases must be approximately the same as the dew
point of the sample gas.
NOTE
The notes for calibrating (see page 259) must be considered.
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