VEGA VEGAPULS 56K - Manual (Page 32)

32 VEGAPULS 56K
22915-EN-041227
4
+
4 ... 20 mA
VEGADIS
371 Ex
2
2
2
-
Measuring system with VEGAPULS 56K Ex, 56K Ex0 on VEGADIS 371 Ex
indicating instrument with current and relay output
• Two-wire technology (loop powered), intrinsically safe ia supply via the signal cable of the
VEGADIS 371 Ex indicating instrument for operation of the sensor in Ex zone 1 (VEGAPULS
56K Ex) or in Zone 0 (VEGAPULS 56K Ex0)
• Optional external indicating instrument with analogue and digital display (can be mounted
up to 25 m away from the sensor).
• Adjustment with PC, HART ® handheld or adjustment module MINICOM (can be plugged into
the sensor or into the external indicating instrument VEGADIS 50)
• Max. resistance of the signal cable 15
Ω per wire
Electrical connection
passive 1)
VEGADIS 50 Ex
0/4 … 20 mA
Relay
certified,
intrinsically safe
HART
® handheld
Ex area Non Ex area
VEGA-
CONNECT 2
EEx ia EEx ia
1) 4 … 20 mA passive means that
the sensor consumes a level-
dependent current of 4 … 20 mA.
The sensor reacts electrically like
a varying resistor (consumer) to
the PLC.