User guide

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6Setupwiththedisplayandadjustmentmodule
MINITRAC 31 • Foundation Fieldbus
41782-EN-131119
TheMINITRAC31requiresthisinformationforthedecaycompensa-
tion. An annual recalibration is hence 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",
"Density", "Limit level", "X-ray alarm" or "Real value correction".
With this menu item you safeguard the sensor parameters against
unauthorizedorunintentionalmodications.
This menu item is described in the operating instructions manual
"Display and adjustment module".
6.7 Parameter adjustment/Real value correction
To correct a level measurement, a real value correction can be carried
outwhenacertainlevelisreached.Thisisforexamplenecessaryin
caseofrecurringbuilduponthevesselwall.
The level measurement can thus be reset to the correct real value.
The level measuring instrument acts as Master and the MINITRAC 31
operates as Slave.
Firstofall,denethefunctionoftheSlaveinstrumentbeforeyou
denetheMasterinstrument.TheMasterinstrumentcanthusimme-
diatelyrecognizetheconnectedSlave.
Forthispurpose,theSlaveinstrumentmustbedenedas"Realvalue
correction". Select under the menu item "Setup/Application" the func-
tion "Real value correction".
Youcansettheaddress(MGC)ontheSlaveinstrumentatwill.Only
the address "0 - 0" is reserved for the Master instrument.
The Master instrument must have the function "Level". For this
purpose, select under the menu item "Setup/Application" the function
"Level".
Set the address setting (MGC) on the Master instrument to "0 - 0".
You have to enter the address of the Slave instrument in the list of
the Master instrument. This function is not possible in the display and
adjustmentmodule.TodothisyouneedPACTwarewiththerespective
DTM.
Setup - Application
Lock setup - adjustment
Real value correction