User guide

47
6Setupwiththedisplayandadjustmentmodule
MINITRAC 31 • Foundation Fieldbus
41782-EN-131119
StartwiththesetupofMINITRAC31.
In the main menu point "Setup", the individual submenu points
shouldbeselectedoneaftertheotherandprovidedwiththecorrect
parameters to ensure optimum adjustment of the measurement. The
procedureisdescribedinthefollowing.
Stickwiththenormalsequenceofthemenuitemsascloselyaspos-
sible.
Setup
In this menu item you can adjust the MINITRAC 31 to the integrated
isotope in the source container.
Forthispurpose,checkwhichisotopeisintegratedinthesource
container.Youcanndthisinformationonthetypelabelofthesource
container.
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MINITRAC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 MINITRAC 31 measures the natural background
radiationandsetsthepulseratetozero.
Setup - Isotope
Setup - Application
Setup - Background
radiation