VEGA VEGASON 71 - 2 … 75 - 2 - Manual (Page 20)

Adjustment at level measurement
20 71 - 2 … 75 - 2
Level measurement
Two separate level measurements can be obtained
with the VEGASON 71 - 2 … 75 - 2 (measuring
system).
The adjustment is carried out for
-
level measurement 1 = measuring channel 1
in mode range no. 10 … 12
- level measurement 2 = measuring channel 2
in mode range no. 20 … 22
The adjustment procedures are carried out sepa-
rately for each sensor.
The display coordination is programmable and
supplied as factory preset in mode 40 as follows:
0 – 4 0
1 1
level 2 (display 2)
level 1 (display 1)
Selection of adjustment procedure
The type of empty adjustment (mode 11) and full
adjustment (mode 12) is determined with the para-
meter adjustment of this mode. The type of adjustment depends on the local
conditions.
Mode description
Mode 10 = 1 means adjustment in m without product level change, i.e.
- with this adjustment procedure the distances in m determined from the vessel drawings
are programmed relating to the levels 0 % and 100 %
- level is not important
Mode 10 = 3 means adjustment in % without product level change, i.e.
- with this adjustment procedure the levels are programmed in % and the respective
measured distance (sensor … level) is calculated automatically
- product level change is needed.
Programming example
Change of mode 10 = 3 of mode 10 = 1 .................. • select mode 0 - 10 in MODEFIELD
• program figure1 in PARAMETER FIELD
• then store with STO-button
Same procedure for channel 2, however mode 0 - 20.
Demonstration
Mode 10 = 1 Mode 10 = 3
Min. distance
^ 100 %
partly filling
= e.g. 75 %
partly emptying
= e.g. 25 %
Max. distance
^ 0 %
MODE 0 - 10