6
Assembly Instructions
enCore FC
Operating Instructions
Page 67 of 120
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
0V
24V
+
−
(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,
•
max. cable length:
250 m
13
Up to and including basic system version
03-24
, you could use either up to
4 × transmitters in multidrop mode or 1 × transmitters in burst mode.
14
Burst mode is not supported by all transmitters.
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