9 Measurement
FLUXUS G831ST-HT
9.4 Display of measured values
91
UMFLUXUS_G831ST-HTV1-0EN, 2021-06-01
9.4
Display of measured values
The measured values are displayed during the measurement as follows:
By pressing
or
, additional physical quantities can be displayed during the measurement.
• Press
to display the measured values in line 5. The designation of the physical quantity is displayed in line 4 by
pressing
for several seconds.
• Press
to display the measured values in line 4. The designation of the physical quantity is displayed in line 5 by
pressing
for several seconds.
Diagnostic values
By pressing ENTER, the following diagnostic values can be displayed during the measurement:
Transducer temperature
In the
SuperUser
and
SuperUser ext.
modes it is possible to display the transducer temperature during the
measurement.
By pressing
during the measurement, it is possible to scroll to the transducer temperature display.
Fig. 9.2:
Display of measured values
1 – program branch, status indicators
2 – display toggling between physical quantity and fluid
3 – measured value
4 – further physical quantity
5 – further physical quantity
Tab. 9.4:
Diagnostic values
display
description
CrestFactor
signal-to-noise ratio for the cross correlation function, reliability measure of the signal evaluation
The measured value is valid if the crest factor is higher than the defined threshold value (default:
crest factor > 6).
PeakWidth
width of the correlation peak
For a reliable signal evaluation, the peak width has to be between 3 and 30.
GainSymm
quality measure of the measuring setup
0 dB: raw signals of A and B are equal
±
100 dB: raw signals differ considerably
The value should be around 0 dB. Significant deviations can indicate problems regarding the
transducer coupling or pipe wall signals.
Fig. 9.3:
Display of the transducer temperature
Notice!
If the compliance of the specified transducer temperature has to be monitored, an event trigger can be set on the
temperature value.
1
2
3
4
5