Vega VEGAPULS 56K, Инструкция по эксплуатации

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VEGAPULS 56K 13
4
4 ... 20 mA
2
2
2
2
1)
Measuring system with VEGAPULS 56K on active DCS
• Two-wire technology, supply from active DCS
• Output signal 4␣ …␣ 20␣ mA (passive)
• Measured value indication integrated in the sensor
• Optionally external indicating instrument (can be mounted up to 25␣ m separated from the
sensor)
• Adjustment with PC, HART
®
-handheld or adjustment module (can be plugged into the sensor
or into the external indicating instrument)
HART ® -
handheld
VEGA-
CONNECT 2
Types and versions
1)
If the resistors of the processing
systems connected to the
4␣ …␣ 20 mA-signal output are less
than 200
Ω
, a resistor of 250
Ω
to
350
Ω
must be connected to the
connection line during adjust-
ment.
Otherwise the digital adjustment
signal would be extremely
damped or short-circuited via too
small input resistors of a
connected processing system so
that the digital communication
with the PC would no more be
ensured.
2) 4␣ …␣ 20␣ mA passive means that
the sensor takes level dependent
a current in the range of
4␣ …␣ 20␣ mA. The sensor reacts
then electrically like a consumer
on the DCS.
VEGADIS 50
passive 2)
DCS