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6 Set up with the display and adjustment module
MINITRAC 31 • 4 … 20 mA/HART - four-wire
40447-EN-130430
The implementation of a real value corretion is only necessary if the
requirements of the measurement loop have changed, for example
with abrasion in a tube.
If you know the density of a certain medium, you can enter the deter-
mined real density in this menu item to correct the measured value.
The function shifts the linearization curve to this determined point.
The measurement can thus be adapted exactly to the conditions in
the tube.
In this menu item you can define the characteristics of the sensor and
its behaviour in case of a fault.
In this menu item you can define the behaviour of the current output.
You can specify the current at minimum and maximum density sepa-
rately.
Radiation from external sources can influence the measuring result of
the sensor.
Possible external radiation sources can be, for example, a weld joint
test on a neighbouring facility or other radiation-based instruments.
An X-ray alarm is triggered if the impulses (ct/s) are more than 25 %
above the max. value from the linearization table.
This fault message is only outputted for the period of the increased
X-ray radiation. Then the fault message is automatically reset.
In this menu item you can determine the behaviour of the sensor
when external radiation sources appear.
Setup/Real value correc-
tion (manually)
Setup/Current output
mode
Setup/Current output
Min./Max.
Setup/External radiation
alarm
