Honeywell Searchline Excel Open-Path Technical Handbook page 23

MAN0530 Issue 09 October 03
2104M0506
3. INSTALLATION AND OPERATION
Wiring with DX100 (M)
See also DX100 Termination Units Technical Handbook.
Receiver
The earth bonding arrangement must ensure that the maximum peak
voltage between the unit case earth and any field cable conductor is less
than 350V. Voltages in excess of this can cause permanent damage to the
unit's RFI protection filters.
Control cabinet
Screen - Modbus Drain
(mounted on Receiver mounting plate)
Blue
Orange A
Black 0V
White 4-20
Red
Green/ GND
Yellow
Safety/protective ground
connections
Modbus A
Modbus B
Cable shield
Instrument (clean)
earth
+24VDC in
4-20mA - out
0VDC - in
Instrument (clean)
earth
Green/Yellow GND
Black 0V
White 4-20
Red +24V
Orange A
Blue B
Local junction box
B
+24V
DX100 (M) junction box
(mounted in a convenient and
accessible position)
TB1
TB2
1
Cable shield
23
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