VEGA VEGACAL 67 Profibus PA - Manual (Page 24)

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6 Set up with the display and adjustment module PLICSCOM
VEGACAL 67 • Profibus PA
31759-EN-130917
– Save value
•
[->] key to select:
– Menu change
– Select list entry
– Select editing position
•
[+] key:
– Change value of the parameter
•
[ESC] key:
– Interrupt input
– Jump to next higher menu
The sensor is adjusted via the four keys of the display and adjust-
ment module. The LC display indicates the individual menu items. The
functions of the individual keys are shown in the above illustration.
Approx. 10 minutes after the last pressing of a key, an automatic reset
to measured value indication is triggered. Any values not confirmed
with [OK] will not be saved.
6.4 Setup steps
After VEGACAL 67 is connected to voltage supply or after voltage
recurrence, the instrument carries out a self-check for approx. 30
seconds. The following steps are carried out:
•
Internal check of the electronics
•
Indication of the instrument type, the firmware as well as the sen-
sor TAGs (sensor designation)
•
Status byte goes briefly to fault value
Then the current measured value will be displayed and the corre-
sponding digital output signal will be outputted to the cable. 1)
Before starting the actual parameter adjustment of a Profibus PA
sensor, the address setting must first be carried out. You will find a
detailed description in the operating instructions manual of the display
and adjustment module or in the online help of PACTware or DTM.
VEGACAL 67 measures the capacitance of the respective product. To
display the actual level of the product, an allocation of the measured
capacitance to the percentage height must be carried out. For this
adjustment, the capacitance is entered with emptied and filled vessel.
If the vessel cannot be emptied or filled completely, you can carry out
the adjustment also with two known levels - for example with 10 %
and 90 %. The difference between the empty and full adjustment
values should be as large as possible.
The actual level can then be calculated on the basis of these settings.
VEGACAL 67 must be installed. A change of level is necessary for
this adjustment.
Adjustment system
Switch-on phase
Address setting
Parameter adjustment
1) The values correspond to the actual measured level as well as to the settings
already carried out, e.g. default setting.