VEGA VEGABAR 81 HART and accumulator pack - Operating Instructions User Manual

Page 27

6 Set up with the display and adjustment module

VEGABAR 81 • HART and accumulator pack

45026-EN-131107

If the actual measured value should be taken over as correction value

during automatic position correction, this value must not be influ-

enced by product coverage or static pressure.
With the manual position correction, the offset value can be deter-

mined by the user. Select for this purpose the function "Edit" and

enter the requested value.
Save your settings with [OK] and move with [ESC] and [->] to the

next menu item.
After the position correction is carried out, the actual measured value

is corrected to 0. The corrective value appears with an inverse sign as

offset value in the display.
The position correction can be repeated as often as necessary. How-

ever, if the sum of the corrective values exceeds 20 % of the nominal

measuring range, then no position correction is possible.

VEGABAR 81 always measures pressure independently of the pro-

cess variable selected in the menu item "Application". To output the

selected process variable correctly, an allocation to 0 % and 100 % of

the output signal must be carried out (adjustment).
With the application "Level", the hydrostatic pressure, e.g. with full

and empty vessel, is entered for adjustment. See following example:

100%

(196.

9")

Fig. 17: Parameter adjustment example "Min./max. adjustment, level measure-

ment"
1 Min. level = 0 % corresponds to 0.0 mbar

2 Max. level = 100 % corresponds to 490.5 mbar

Setup - Adjustment