Vega MINITRAC 31 4 … 20 mA_HART - four-wire Bedienungsanleitung PDF herunterladen (Seite 41)

6 Set up with the display and adjustment module

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

40447-EN-131119

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Linearization-Modify

Youcanalsomodifyindividuallinearizationpoints.

After editing, you have to activate the complete value pair so that the

linearizationpointwillbeeective.

Yourecognizeactivelinearizationpointsbyasmallsquarewitha

crossnexttothenumberofthelinearizationpoint.

In this menu item you can adjust the damping of the sensor. With

ityoucansuppressuctuationsinthemeasuredvalueindication,

caused e.g. by an agitated product surface. This time can be between

1 and 1200 seconds. Keep in mind that the reaction time also in-

creases and the instrument reacts to quick level changes with a delay.

Generallyatimeofapproximately60secondsissucienttosmooth

the measured value indication.

With the setting "Automatic", the instrument itself calculates a suitable

damping on the basis of the adjustment and the measured value

changes. This setting is particularly suitable for application where fast

and slow level changes occur.

The implementation of a real value corretion is only necessary if the

requirements of the measurement loop have changed, for example

with abrasion in a tube.

If you know the density of a certain medium, you can enter the deter-

mined real density in this menu item to correct the measured value.

Thefunctionshiftsthelinearizationcurvetothisdeterminedpoint.

The measurement can thus be adapted exactly to the conditions in

the tube.

Setup/Damping

Setup/Real value correc-

tion (manually)

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Vega MINITRAC 31 4 … 20 mA_HART - four-wire Bedienungsanleitung Seite 41