Vega VEGADIF 65 Operating Instructions Manual page 44

6 Adjustment with the display and adjustment module PLICSCOM
Zero adjustment with dif-
ferential pressure
Span adjustment with dif-
ferential pressure
Min. adjustment with level
44
4. Move to min. (zero) adjustment with [->].
The current measured value was corrected to 0, the corrective value
is available in the display as offset value with sign reversal.
If a known value should be taken over as position correction which is
not the current value, then you have to select the function "Edit" and
enter the requested value.
In this menu item, the min. differential pressure is entered.
Proceed as follows:
1. Edit the bar value in the menu item "zero" with [OK].
Zero adjustment
0.00 %
=
0.0000 bar
DP
0.0000 bar
2. Set the requested value with [+] and [->].
3. Confirm with [OK] and move to span adjustment with [->].
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
The zero adjustment is finished.
Information:
The zero adjustment shifts the value of the span adjustment. The
span, i.e. the difference between these values, however, remains
unchanged.
In this menu item, the max. differential pressure is entered.
Proceed as follows:
1. Edit the bar value in the menu item "span" with [OK].
Span adjustment
100.00 %
=
0.5000 bar DP
0.0000 bar
Information:
If the instrument has not yet been adjusted, the displayed pressure for
100 % corresponds to the nominal measuring range of the sensor (in
the above example 500 mbar).
2. Set the requested value with [+] and [->].
3. Confirm with [OK] and move to the menu overview with [ESC].
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
The span adjustment is finished.
Proceed as follows:
Offset
=
-0.0035 bar
0.0000 bar
VEGADIF 65 • 4 ... 20 mA
DP