Vega VEGACAL 69 Operating Instructions Manual page 25

Carry out min. adjustment
VEGACAL 69 • Two-wire 4 ... 20 mA/HART
6 Set up with the display and adjustment module PLICSCOM
To be on the safe side, note the adjustment values for full and empty.
If an adjustment procedure fails, it is not necessary to again carry out
a level change.
These values can be helpful if the electronics has to be exchanged.
Empty adjustment
Full adjustment
Tab. 1: Adjustment protocol
Tip:
For min. adjustment the vessel should be as empty as possible, and
for max. adjustment, as full as possible. If the vessel is already full,
start with max. adjustment.
Note:
If possible, the vessel should be as empty as possible for min. adjust-
ment.
Proceed as follows:
1. Move from the measured value display to the main menu by
pushing [OK].
▶
Basic adjustment
Display
Diagnostics
Service
Info
2. Select the menu item " Basic adjustment" with [->] and confirm
with [OK]. Now the menu item " Min. adjustment" is displayed.
Min. adjustment
0.00 %
=
0.0 pF
54.5 pF
3. Prepare the adjustment value for editing with [OK]. Move to the
selection window with [OK].
Min. adjustment
Accept current measured
value?
Accept?
Edit?
4. Accept the current measured value or move to the editing window
with "Edit". To edit, set the cursor to the requested position with
[->]. Set the requested % value with [+] and save with [OK]. The
cursor jumps to the capacitance value.
5. Enter the current capacitance value in pF (displayed below) for
the empty vessel corresponding to the percentage value.
6. Save the settings with [OK] and move to "Max. adjustment" with
[->].
% Value
25