6 Assembly Instructions
6.4.10 HART Measurement Transmitter (EEx d) via MFE7 Board
(without barrier, external Power Supply)
Hazardous Area Safe Area enCore device
MFE7 board
A1+ or A2+
A1− or A2−
SH
HART pressure
transmitter, EEx d
HART temperature
transmitter, EEx d
HART
communicator
0V24V
+
−
(sink mode)
Fig. 6-15: HART pressure and temperature transmitter (EEx d) via MFE7 – example
Characteristics MFE7:
• a galvanically isolated input safe circuit for a transmitter with HART
interface
− load: approx. 300 Ω
• protocol converter integrated in input:
max. 4 transmitters:
thereof max. 1 transmitter in burst mode
13,
14
• max. cable length: 250 m
13
Up to and including basic system version 03-24, you could use either up to
4 × t
ransmitters in multidrop mode or 1 × transmitters in burst mode.
14
Burst mode is not supported by all transmitters.
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