Vega MINITRAC 31 - Page 51

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6Setupwiththedisplayandadjustmentmodule
MINITRAC 31 • Foundation Fieldbus
41782-EN-211203
theadjustmentofthesensorwithfullstatus(covered)andwithempty
status(uncovered).
Hence,youwillgetaveryreliableswitchingpoint.
Withsinglepointadjustment,youhavetodenethedierence
betweenthemin.andmax.adjustmentpoints(DeltaI)yourselfduring
thefollowingsetup.
This menu item appears only if you have selected " Single point
adjustment"asadjustmentmode(Setup-Adjustmentmode).
InthismenuitemyoudeterminethepointatwhichtheMINITRAC31
shouldswitchinuncoveredstatus.
Empty the vessel until the sensor is uncovered.
For this enter the requested pulse rate manually or let the rate be
determined by MINITRAC 31. Automatic determination of the pulse
rate should be given preference.
Thecountrateisstatedinct/s.Thisisthenumberofcountspersec-
ond, i.e. the measured radioactive radiation dose actually reaching
the sensor.
Prerequisites:
•
Radiationisswitchedon-Sourcecontainerissetto"ON"
•
Thereisnomediumbetweensourcecontainerandsensor
You can enter the value for " Adjustment uncovered"(ct/s)manually.
You can have the value for " Adjustment uncovered" determined by
MINITRAC 31.
This menu item appears only if you have selected " Single point
adjustment"asadjustmentmode(Setup-Adjustmentmode).
Inthismenuitemyoucanadjustatwhichpercentagevalueofthe
max.pulseratethesensorshouldswitchover.
Adjustment "uncovered"
(single point adjustment)
Delta I (single point ad-
justment)