VEGA POINTRAC 31 8_16 mA_HART - four-wire - Manual (Page 25)

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6 Set up with the display and adjustment module
POINTRAC 31 • 8/16 mA/HART - four-wire
39411-EN-131119
The POINTRAC 31 requires this information of the automatic decay
compensation. This ensures an interference-free measurement over
the complete life time of the gamma emitter - an annual recalibration
is not necessary.
Enter the requested parameters via the appropriate keys, save your
settings with [OK] and jump to the next menu item with the [ESC] and
the [->] key.
Setup
Enter here, the respective application.
This menu item enables adaptation of the sensor to the requested ap-
plication. You can choose between the following applications: "Level",
"X-ray alarm" or "Real value correction".
X-ray alarm
The radiation of external radiation sources can influence the measur-
ing result of continuously measuring, radiation-based sensors.
You can also use the POINTRAC 31 as a Slave instrument for detec-
tion against X-ray alarm. Hence an alarm can be triggered.
For this function you require PACTware with the respective DTM.
Real value correction
You can also use the POINTRAC 31 as a Slave instrument for
detection of a defined level. Hence you can automatically correct the
measured value of a continuously measuring, radiation-based sensor
to the real value when this level is reached.
For this function you require PACTware with the respective DTM.
The natural radiation on earth influences the accuracy of the meas-
urement.
With this menu item the natural background radiation can be faded
out.
For this purpose, the POINTRAC 31 measures the natural back-
ground radiation and sets the pulse rate to zero.
In the future, the pulse rate from this background radiation will be
automatically deducted from the total pulse rate. This means: only
the component of the pulse rate originating from the source will be
displayed.
The source container must be closed for this setting.
In this menu item you can select the temperature unit.
Setup - Application
Setup - Background
radiation
Setup/Unit