Vega VEGABAR 61 4 … 20 mA_HART Bedienungsanleitung PDF herunterladen (Seite 41)

A linearization is necessary for all vessels in which the vessel volume

does not

increase linearly with the level - e. g. with a cylindrical or

spherical tank - and the indication or output of the volume is required.

Corresponding linearization curves are preprogrammed for these

vessels. They represent the correlation between the level percentage

and vessel volume. By activating the appropriate curve, the volume

percentage of the vessel is displayed correctly. If the volume should

not be displayed in percent but e.g. in l or kg, a scaling can be also set

in the menu item "Display".

Linearisation curve

linear

Enter the requested parameter via the appropriate keys, save your

settings and jump to the next menu item with the [->] key.

Caution:

Note the follo

wing, if VEGABAR 61 is used as part of an overﬁll

protection system according to WHG:

If a linearisation curve is selected, the measuring signal is no longer

compulsorily linear proportional to the level. This must be taken into

consideration by the user, particularly when adjusting the switching

point on the level switch.

This function enables reading out parameter adjustment data as well

as writing parameter adjustment data into the sensor via the indicating

and adjustment module. A description of the function is available in the

operating instructions manual "Indicating and adjustment module".

The following data are read out or written with this function:

l Measured value presentation

l Adjustment

l Damping

l Linearisation curve

l Sensor-TAG

l Displayed value

l Display unit

l Scaling

l Current output

l Unit of measurement

l Language

The following safety-relevant data are not read out or written:

l SIL

l HART mode

l PIN

l Application

Linearisation curve

Copy sensor data

VEGABAR 61 • 4 … 20 mA/HART 41

6 Set up with the indicating and adjustment module PLICSCOM

27519-EN-081209

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