Vega VEGABAR 51 Profibus PA Bedienungsanleitung PDF herunterladen (Seite 34)

6 Set up with the display and adjustment module PLICSCOM

VEGABAR 51 • Probus PA

36714-EN-130321

If the adjustment ranges are exceeded, the message "Outside param-

eter limits" appears. The editing procedure can be aborted with [ESC]

or the displayed limit value can be accepted with [OK].

Proceed as follows:

1. Edit the mbar value in the menu item "span" with [OK].

Span

100.0 %

+1000.0 mbar

0000.0 mbar

Information:

The displayed pressure for 100 % corresponds to the nominal meas-

uring range of the sensor (in the above example 1 bar = 1000 mbar).

2. Set the requested mbar value with [->] and [OK].

3. Conrm with [OK] and move to the menu overview with [ESC].

The span adjustment is nished.

Information:

For an adjustment with pressure, simply enter the actual measured

value indicated at the bottom of the display.

If the adjustment ranges are exceeded, the message "Outside param-

eter limits" appears. The editing procedure can be aborted with [ESC]

or the displayed limit value can be accepted with [OK].

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

does not increase linearly with the level - e.g. in a horizontal cylindri-

cal or spherical tank - and the indication or output of the volume is

required. Corresponding linearisation curves are preprogrammed for

these vessels. They represent the correlation between the level per-

centage 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".

Linearization curve

Linear

Enter the requested parameters via the appropriate keys, save your

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

Caution:

Note the following if the VEGABAR 51 with corresponding approval is

used as part of an overll protection system according to WHG (Water

Resources Act):

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

linearly proportional to the level. This must be taken into consideration

by the user, particularly when setting the switching point on the limit

signal indicator.

Carry out span adjust-

ment

Linearization curve

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 75 76

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