LumaSense Technologies INNOVA 1314i - Manual (Page 100)

Chapter 9
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BE6030-13 1314i Photoacoustic Gas Monitor LumaSense Technologies A/S
Page 100 of 199
9.1.2 Source Memory (EEPROM)
The data stored in Source Memory is not lost if A.C. mains power is
removed from the Monitor. There are three blocks of data in the
Source Memory (see Fig.9.1 ):
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.