LumaSense Technologies 3434i SF6 Leak Detector - Manual (Page 168)

Chapter 12
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BE6028-14 3434i SF6 Leak Detector LumaSense Technologies A/S
Page 168 of 191
12.9.1 Setting-up a Zero-point Calibration of the Water-
vapour Filter
If you wish to zero-point calibrate the water-vapour filter you must
zero-point calibrate all installed optical filters. The concentration
offset factors calculated during zero-point calibration of the filter
“A” will be stored in the filter banks (the active during calibration).
Check, therefore, that you make the relevant filter bank active for
the filter before calibrating it. This is discussed in more detail in
section 12.3.3.
The procedure for setting-up a zero-point calibration of the water-
vapour filter is as follows:
1. Press Measure S3 S3 S1 then the following text will be
displayed:
PERFORM ZERO-POINT CALIBRATION ?
NO YES
2. Follow the set-up of a zero-point calibration of the water-vapour
filter by following the black arrows in the schematic diagram
shown in Fig.12.16 .
The following text will appear:
ZERO-POINT CALIB. CONNECT CLEAN, WET AIR
AND PRESS ENTER WHEN READY