Current Output - VEGA VEGAMET 381 Betriebsanleitung

Setup with the integrated indicating and adjustment unit

Current output

à
Set the function switch to position [8]. Select
with the [+/-] keys the measured value output
4 ... 20 mA or 0 ... 20 mA. For this example,
choose 4 - 20.
The displayed numbers have the following mean-
ings:
0 - 20 = 0 ... 20 mA
l
4 - 20 = 4 ... 20 mA
l
à
Save the value by pushing [+/-] simultaneously
VEGAMET 381 requires for scaling of the indica-
tion, the adjustment of the filling quantities for 0 %
and 100 %. The vessel must neither be filled nor
emptied.
Scaled indication at 0 %
Set the function switch to position [7] (display
1
min.)
Set the value to 50 via the [+/-] keys
2
Save the value by pushing both keys simulta-
3
neously
Scaled indication at 100 %
Set the function switch to position [6] (display
1
max.)
Set the value to 2650 via the [+/-] keys
2
Save the value by pushing both keys simulta-
3
neously
Decimal point
Since the range of the example tank is between 50
l and 2650 l, you need all 4 decimal places for the
digital indication.
Set the function switch to position [5] (Decimal
1
Point)
By pushing the [+/-] keys, you move the
2
decimal point
Save the value by pushing both keys simulta-
3
neously
Relay
Set the function switch to position [ 1 ] (relay 1
l
on). For the given example, select the value
90.0 (90.0 %) with the [ +/- ] keys. The internal
30
relay 1 then switches on when this value is
reached. Save the value by pushing the two
keys simultaneously.
Set the function switch to position [ 2] (relay 1
l
off). Select the value 10.0 (10.0 %) with the [
+/-] keys. The internal relay 1 then switches off
when the value falls below this value. The
respective relay control lamp lights when the
relay is energized. If the switching points are
too close together (< 0.1 %), the appropriate
LED flashes. The relay takes on the safe
condition. In mode "OPERATE " an error
message is outputted on the display.
If you want to control additional relays, proceed
l
in the same way, as with relay 1. The switch
positions for setting the respective relays are
stated in the list of the function switch under
"Setup procedure".
Note:
If you want to change the mode (i.e. the
switching function of the relays), you have
to exchange the On and Off values.
VEGAMET 381