Vega FIBERTRAC 31 4 … 20 mA_HART - four-wire With SIL q Bedienungsanleitung PDF herunterladen (Seite 52)

7 Set up with the display and adjustment module

FIBERTRAC 31 • 4 … 20 mA/HART - four-wire

43386-EN-131119

Through this selection, the sensitivity of the sensor is adapted

perfectly to the isotope. The normal reduction of the emitter activity is

hence considered through the radioactive decay.

The FIBERTRAC 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.

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",

"Point level" or "Summation Slave".

Thenaturalradiationonearthinuencestheaccuracyofthemeas-

urement.

With this menu item the natural background radiation can be faded

out.

For this purpose, the FIBERTRAC 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.

in this menu item you can select if you want to carry out a single or

double point adjustment on the sensor.

With the double point adjustment, the Delta I value is selected auto-

matically.

We recommend selecting the double point adjustment. To use this,

you must be able to change the level of the vessel so as to carry out

Setup - Application

Setup - Background

radiation

Setup/Unit

Setup - Adjustment mode

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Vega FIBERTRAC 31 4 … 20 mA_HART - four-wire With SIL q Bedienungsanleitung Seite 52