6 Assembly Instructions
6.4.4 Analog Measurement Transmitter (EEx i) via ExMFE5 Board
Hazardous Area Safe Area
enCore device
ExMFE5 board
P+
SH
Analog pressure
transmitter
4...20 mA, EEx i
P−
Fig. 6-9: analog pressure transmitter (EEx i) via ExMFE5 – example
Characteristics ExMFE5:
• intrinsically safe, galvanically isolated input safe circuits of the
category [Ex ib Gb] II C for transmitter with 4 ... 20mA interface
• active signal converter integrated of the category “associated
electrical equipment” according to EN50020 in input:
− open-curcuit voltage: approx. 18 V
− voltage at 20mA: approx. 10.6 V
− max. load: 300 Ω
• max. measurement error: ±0.05
% of the measurement
(in the measuring range 4 to 20 mA and between 0 to +40 °C
ambient temperature)
• max. cable length: 500 m
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