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6 Set up with the display and adjustment module
MINITRAC 31 • 4 … 20 mA/HART - four-wire
40447-EN-130430
Diagnostics
In this menu item, you can enquire the status of your sensor. In normal
operation, the sensor displays the message "
OK
". In case of fault, you
will find the corresponding fault code here.
This parameter is described in the operating instructions manual
"
Display and adjustment module
".
The peak value function holds the max. and min. values during opera-
tion.
This parameter is described in the operating instructions manual
"
Display and adjustment module
".
Here, you can retrieve the adjustment value of the sensor. This is the
percentage value of the max. pulse rate at which the sensor switches
over.
If you have carried out a single point adjustment, this is the entered
value. With a double point adjustment, this is the calculated value.
The value is an indication for the reliability and reproducibility of the
switching point.
The greater the difference in the pulse rate between covered and
uncovered status, the greater the differential value (Delta I) and the
more reliable the measurement. The automatically calculated damp-
ing is also oriented around the Delta I value. The higher the value, the
lower the damping.
A Delta I value below 10 % is an indication for a critical measurement.
In this menu item you can simulate measured values via the current
output. This allows the signal path to be tested, e.g. via downstream
indicating instruments or the input card of the control system.
You can simulate different values:
Pulse rate of the sensor
Diagnostics/Device
status
Diagnosis/Peak value
Diagnosis/Adjustment
data
Diagnosis/Simulation
