Owner manual

Chapter 4
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BE6021-11 1316A-2 Multi Gas Monitor LumaSense Technologies A/S
Instruction Manual Page 58 of 97
Figure 4.3. The Status Window displaying Zero calibration in
Progress.
The Zero/O
2
Span is started controlled by the BZ6013 going through
the following steps:
i) The pump is turned OFF and all solenoid valves are deactivated.
ii) After a settling delay, the ambient pressure (Atm Press) is
measured and stored.
iii) The pump is turned ON.
iv) After a settling delay, the sample cell pressure (Abs Press) is
measured and stored.
v) The absolute pressure limit is checked (Abs Press – Atm Press
Pressure Limit).
If this test fails, the Pump Out Flow Check is shown in the Status
window (see figure 4.4) and the zero calibration procedure is aborted: