Assembly Instructions
5
Page 62 of 97
Operating Instructions
enCore FC1
5.4.12 HART Measurement Transmitter (EEx i) via MFE7 Board
(redundant)
Hazardous Area
Safe Area
enCore device 1
MFE7 board
A1+ or A2+
A1- or A2-
SH
HART transmitter,
EEx i
enCore device 2
MFE7 board
A1+ or A2+
A1- or A2-
SH
0V 24V
Isolated current
repeater barrier
(HART compatible,
active output)
HART
communicator
Fig. 5-17: HART transmitter (EEx i) via MFE7 (redundant)
Characteristics:
•
a galvanically isolated input safe circuit for a transmitter with HART
interface for every device
•
a passive signal and protocol converter integrated in input of both
the devices:
in passive operation:
approx. 300 Ω load