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Vega MINITRAC 31 User Manual

Vega MINITRAC 31
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33
6Setupwiththedisplayandadjustmentmodule
MINITRAC 31 • Foundation Fieldbus
41782-EN-211203
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",
" Density", " Limit level", " X-ray alarm" or " Real value correction".
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.
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 units of the process value and
the temperature.
In this menu item you can enter the measuring range (min. and max.
processvalue)ofthesensor.
Thesesettingsinuencethesignaloutputofthesensor.
Enterinthemenuwindow"Max. process value"themax.level(full),
e.g. in " m".
Enterinthemenuwindow"Min. process value" the min. level
(empty),e.g.in"m".
In this menu item you can carry out the adjustment of the sensor.
Due to the measuring principle itself, there is no linear relationship
betweenpulserateandlevel.Hence,thisadjustment(i.e.linearisa-
tion)mustinanycasebecarriedout.
Note:
Ifyoucannotllthevesselwiththeoriginalmedium,itisalsopossible
tocarryouttheadjustmentwithwater.
Prerequisites:
Radiationisswitchedon-Sourcecontainerissetto"ON"
Thevesseliseithercompletelylled(100%)orcompletelyemptied
(0%).
Dependingonwhetherthevesselisfullorempty,youcanrstcarry
out the full or the empty adjustment. The MINITRAC 31 sorts the
points automatically according to their level.
Select " Show table" to display and edit the linearisation points.
Select " Linearisation - New"toentertherstpoint.
Select " Determine count rate"toentertherstpoint.
The determination of the actual count rate lasts 2 minutes. After the
countratehasbeendetermined,youcanacceptthevalue(ct/s).
Application
Background radiation
Units
Adjustment
Linearisation

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Vega MINITRAC 31 Specifications

General IconGeneral
BrandVega
ModelMINITRAC 31
CategoryAccessories
LanguageEnglish

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