Setup With The Integrated Indicating And Adjustment Unit; Adjustment System - VEGA VEGAMET 381 Betriebsanleitung

Setup with the integrated indicating and adjustment unit

Information:
In the menu, it is possible to switch over
between active and passive operation of
the measurement data input:
In active mode, VEGAMET 381 provides the
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power for the connected sensors. Power
supply and measurement data are transmitted
over the same two-wire cable. This mode is
provided for connection of measuring trans-
ducers without separate operating voltage
(sensors in two-wire version).
In passive mode the sensors are not powered,
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only the measured value is transmitted. This
input is for connection of transmitters with their
own separate operating voltage (sensors in
four-wire version). The VEGAMET 381 can be
also looped into the existing circuit like a
normal ammeter.
Tip:
For parameter adjustment of connected
HART sensors, the sockets are integrated
in the terminals of the meas. data input. A
VEGACONNECT can be directly plugged in
without the need of an additional HART
resistor.
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6 Setup with the integrated
indicating and adjustment
unit

6.1 Adjustment system

The integrated indicating and adjustment unit is for
measured value display, adjustment and diagnosis
ofVEGAMET 381. Indication and adjustment is
carried out in the front via a clear LC-display and a
function switch as well as two keys.
To open the cover, insert a screwdriver in the two
slots on the top and turn it slightly.
1 2
7
6
Fig. 13: Indicating and adjustment elements
Status indication operating relay 1 and 2
1
Status indication fail safe relay
2
Status indication operation
3
Adjustment keys +/-
4
Insertable tag for identification of the measurement loop
5
Function switch
6
LC display
7
Key functions
[Function switch] for selection of:
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Adjustment
-
Relay switching points
-
Indication scaling
-
Current output
-
Integration time
-
Offset correction
-
Current input active/passive
-
1
2
3
+
-
4
5
VEGAMET 381