Operation
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IMT Analytics AG
6.6.1 Measurements
Measurement settings contain all the settings to configure measurements. Here, you
can set the gas standard, gas type, gas humidity and pressure compensation. In ad-
dition, this setting also makes it possible to configure the filter type and the ventilation
parameter pressure source.
Gas standard FlowAnalyser PRO supports various gas standards. The gas
standards are listed under 6.12 Gas type and standards.
Gas type The gas that is to be measured must be set on FlowAnalyser
PRO. O
2
gas mixtures that are referred to as “automatic” are
calibrated using the oxygen cell. You will find a complete list of
gas types in the section 6.12 Gas type and standards.
Dynamic Pressure
Compensation
The Dynamic Pressure Compensation setting only affects
the displayed PChannel value. When the Dynamic Pres-
sure Compensation setting is enabled, a virtual pressure is
calculated, to be found downstream in the device (hence the
measurement is independent of the orientation of the device.).
This replicates the behaviour of the FlowAnalyser PRO. When
the Dynamic Pressure Compensation setting is disabled, the
displayed pressure value is the value which is measured by
the pressure sensor in the flow channel.
Filter type To make the parameters easier to read, the readings are
filtered. Readings are recorded every 1 ms. The following four
options are available:
• None (100 ms)
• Low (250 ms)
• Medium (650 ms)
• High (1000 ms)
Ventilation parameter
pressure source
Ventilation parameters require a pressure measurement for
calculation. The pressure value from the “P
channel
” sensor is
used by default. Optionally, both differential pressure sensors
P
diff
low and P
diff
high can be selected for automatic calcula-
tion.
In the menu sub-item Measurement, the settings are made for gas type, gas stand-
ard, gas humidity and pressure compensation source. FlowAnalyser PROprovides
three different trigger settings. The associated settings can be found in the sub-item
Trigger. You will find the settings concerning the device in the sub-menu Device.
This contains various adjustment options for the screen, device settings and the
various interfaces.
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