LumaSense Technologies 3434i SF6 Leak Detector - Manual (Page 102)

Chapter 9
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BE6028-14 3434i SF6 Leak Detector LumaSense Technologies A/S
Page 102 of 191
Block 1 – contains calibration factors and 3 optical-filter
parameters
Block 2 – contains 3 of the 6 set-up parameters found under the
Filters branch of the set-up “tree”
Block 3 – contains all other parameters in the Set-Up Tree
Block 1 – Calibration Factors and 3 Optical-filter Parameters:
There are six different “data files” in this block. Each data file is
denoted by a letter, which indicates the position a particular optical
filter occupies in the Monitor’s carousel. Each file “A” to “E” is divided
into five sections called Filter Banks, which are numbered from 1 to
5. The water-vapour filter is only capable of measuring water-vapour
and therefore its data file (“W”) is not divided into different filter
banks.
Each Filter Bank contains the following data:
1. The name of the gas used during span calibration of the filter.
2. The molecular weight of the gas used during span calibration.
3. The alarm limits for the gas. (High Alarm Limit 1, High Alarm Limit
2).
4. A Concentration offset factor: obtained during zero-point
calibration of the filter.
5. A Humidity gain factor: obtained during an humidity-
interference calibration of the filter.
6. A Conversion factor: obtained during the span calibration of the
filter with the gas named in point 1 above.
7. Cross-interference calibration factors: obtained during cross-
interference calibration ( not valid for 3434i only one optical filter
is installed).