LumaSense Technologies INNOVA 1314i User Manual
Page 169
Chapter 12
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BE6030-13
1314i Photoacoustic Gas Monitor
LumaSense Technologies A/S
Page 169 of 199
performed the number (n) will show the number 6 because the
very first measurement is overwritten by the 7
th
measurement so
that only 6 measurements are still stored. When 8 measurements
have been completed the number (n) will also show 6 because the
results of the first and second measurements have been
overwritten by the 7
th
and 8
th
measurement results …and so on.
2. Let the Monitor continue measuring the span gas A until the
temperature is stable. Look at the print-put of the average and
standard deviation measurements for (1) the water-vapour and
(2) the filter “A”. When these values have stabilised for both
filters, span calibration measurements do not need to continue.
3. Press
¿
.
This causes the following text to appear on the screen:
A : µ : 123.8 μV σ : 617 nV 6 40.4 °C
PRESS ENTER WHEN RESULTS ARE STABLE
These results have been shown on the data-log print-out. If they
have stabilised continue to the next Step.
4. Press
¿
.
The text CALCULATING CALIBRATION FACTORS – PLEASE
WAIT appears on the screen.
The Monitor only uses the last six measurement results when
calculating any calibration factor. The conversion factor (in mg/m3
per volt), which is calculated during a span calibration, is the factor
which allows the Monitor to relate the signal produced by the gas to
the concentration of gas in the cell. The cross-interference
factors, which are calculated during cross-compensation
calibration are those factors which allow the Monitor to compensate
for any interference gas A has on the other installed optical filters.
If any calibration data is doubtful or unacceptable an error message
(marked by an asterisk) will appear on the screen after the
calibration factors have been calculated. Whenever an asterisk is
shown on the screen further information about the condition of the
Monitor can be obtained by pressing the INFO button.
lists all the error messages connected with doubtful
calibration results and gives an explanation of their significance so
that the user can ascertain what action to take if such messages are
displayed after calibration.