LumaSense Technologies INNOVA 1314i - Manual (Page 79)

Chapter 7
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BE6030-13 1314i Photoacoustic Gas Monitor LumaSense Technologies A/S
Page 79 of 199
Cross Interference: if any “interferent” other than water vapour is
present in the ambient air-sample, the Monitor can cross compensate
for the interference caused by its presence provided that a selective
optical filter is installed in the monitor to measure the concentration
of interferent gas present.
Gas
Gas Setup: there are up to six selections here: A, B, C, D, E and W.
These represent the filters installed in the monitor’s filter carousel.
When setting up a new monitoring task, you can choose freely
between the gases available for each filter (names entered when
calibrating the filters, see sections 12.3 and 12.5 ). Once a gas has
been selected for a filter and the measurement task started, you can
no longer change the gas for this filter in this measurement task.
However, you can still select gases for filters, which have not
previously been used in the measurement task.
Note: only one gas per filter can be selected at a time for
measuring. The W position always represents the water filter
installed in the monitor.
Sample Integration Time: this enables you to make a choice
between speed and accuracy. Generally, the longer the integration
time the more accurate the results. There are several selection
possibilities here:
Integration Type Integration Time
Fast 1 s
Normal 5 s
Low Noise 20 s
Advanced 0.5s, 1s, 2s, 5s, 10s, 20s, 50s
Alarm Set-up
Select Gas: this option enables you to select any of the gases (one
per filter position) already defined in the set-up.
Limit: enables you to define the gas concentration that will trigger
the alarms. The acceptable values are shown in Table 7.6 .
Select limits: this defines the concentration level when the alarm
is triggered. This parameter must be defined.