Assembly Instructions
5
Page 58 of 97
Operating Instructions
enCore FC1
5.4.10 HART Measurement Transmitter (EEx i) via MFE7 Board
Hazardous Area
Safe Area
enCore device
MFE7 board
A1+ or A2+
A1- or A2-
SH
0V 24V
Isolated current
repeater barrier
(HART compatible)
HART pressure
transmitter, EEx i
HART temperature
transmitter, EEx i
HART
communicator
Fig. 5-15: Example – HART pressure and temperature transmitter (EEx i) via MFE7
Characteristics:
•
a galvanically isolated input safe circuit for a transmitter with HART
interface;
an active or passive signal and protocol converter integrated in
input:
− in active operation:
approx. 24 V feeding voltage
− in passive operation:
approx. 300 Ω load
•
Multidrop mode:
4 transmitters (max.)
Burst mode:
1 Transmitter
•
maximum cable length:
250 m