Operating instructions

separate power supply (sensors in four-wire version). The
connection and operation in Ex ia is not permitted on the
passive input.
Note:
VEGAMET 625 is designed for connection of two HART
sensors. Because they are accessed via different addresses in
the HART multidrop mode, both sensors are connected to the
same sensor input. These are either terminals 1/2 (active
input) or terminals 3/4 (passive input). Simultaneous mixed
operation on active and passive input is not possible. Because
this is a digital bus system, only one two-wire cable should
lead to the two sensors. A distributor can be connected directly
in front of the sensors. As an alternative, the connection to the
next sensor can be continued via the second cable entry in the
sensor housing.
14 VEGAMET 625 - Double channel Hart signal conditioning instrument
Connecting to power supply
28970-EN-050616