AO2000 CONTINUOUS GAS ANALYZERS | OI/AO2000-EN REV. B 57
Limas21 HW: Preparation for installation
Installation site
Ambient temperature
+15 to +35 °C with installation in a system housing with or without an elec-
tronics module
Vibrations/shocks
max. ±0.04 mm / 0.5 g at 5 to 150 Hz
Sample gas
Sample gas composition
Stack gas from incinerators without sulfur content, SO
2
concentration
< 25 ppm, H
2
O concentration < 20 vol.%, filtered with pore size ≤ 0.5 µm
Sample gas inlet conditions
Temperature Sample gas dew point ≤ 65 °C
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 cell
max. 500 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)).
Test gases
Zero-point calibration
Nitrogen or air or UV sample component-free gas
End-point calibration
Calibration cells or test gas for each sample component
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 249) must be considered.
Pressure sensor
The pressure sensor is installed in the gas analyzer ex works.
The pressure sensor is located in the sample gas feed path if the internal gas
lines are executed as FPM flexible tubes. The connection of the pressure
sensor is led to the outside via an FPM hose if the internal gas lines are exe-
cuted as tubes. The connection of the pressure sensor is documented in the
pneumatic diagram contained in the analyzer data sheet.
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