Vega Vegamet 381, Руководство по эксплуатации

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5 . 3 W iring plan
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F ig . 13 : T erminal assignment VEGAMET 381
1 M eas . data input / sensor power supply with sockets
for VEGACONNECT
2 C urrent output
3 F ail safe relay
4 R elay 2
5 R elay 1
6 V oltage supply
I nformation :
I n the menu , it is possible to switch over
between active and passive operation of
the measurement data input :
l
I n active mode , VEGAMET 381 provides the
power for the connected sensors . P ower
supply and measurement data are transmitted
over the same two - wire cable . T his mode is
provided for connection of measuring trans -
ducers without separate power supply ( sen -
sors in two - wire version ).
l
I n passive mode the sensors are not powered ,
only the measured value is transmitted . T his
input is for connection of transmitters with own ,
separate voltage supply ( sensors in four - wire
version ). T he VEGAMET 381 can be also
connected into the existing circuit like a normal
current meter .
T ip :
F or 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 .
6 S etup with the integrated
indicating and adjustment
unit
6 . 1 A djustment system
T he integrated indicating and adjustment unit is for
measured value display , adjustment and diagnosis
of VEGAMET 381 . I ndication and adjustment is
carried out in the front via a clear LC - display and a
function switch as well as two keys .
T o open the cover , insert a screwdriver in the two
slots on the top and turn it slightly .
22 VEGAMET 381
S etup with the integrated indicating and adjustment unit
27567
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01
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070216