Honeywell enCore FC Series - FLOWSIC600 Ultrasound Gas Meter: Serial RS485 (Eex D); FLOWSIC600 Ultrasound Gas Meter: Serial RS485 (Eex D) Via MFE7 Board

6 Assembly Instructions
enCore FC
Operating Instructions
Page 89 of 120
6.4.23 FLOWSIC600 Ultrasound Gas Meter: Serial RS485 (EEx d)
via MFE7 Board
Hazardous Area Safe Area
enCore device
MFE7 board
RSA
USM
FLOWSIC600
(EEx d)
RSB
0V24V
1+ (12..24V ±20%)
2-
34
33
RS232C
service
RS485 to RS232
converter
e.g. ADAM 4520
0V 24V
Data +
Data -
81
82
RSA
SH
GND
RSB
Fig. 6-28: Interface for ultra sound gas meter (FLOWSIC600):
serial RS485 (EEx d) via MFE7
Consider the recommendations made with regards to cable length
and connection resistors in  refer to chapter 6.4.1 General
Recommendations for Signal and Data Cable (p. 55).