Honeywell Searchline Excel Open-Path Technical Handbook page 67

MAN0530 Issue 09 October 03
2104M0506
4.5.3 Connections using DX100 (M)
Control cabinet
connections
Cable shield
Modbus A
Modbus B
Screen - Modbus Drain
Instrument (clean)
earth
+24VDC in
4-20mA - out
0VDC - in
Cross-Duct
Transmitter
connections
4.5.4 Connections using Non DVC/DX100/DX100 (M) Junction Box
SHC
Protection
Device
SHC1
Transmitter
Connections
4. CROSS-DUCT EXCEL
DX100 (M) Junction Box
1
TB1
TB2
red (+24VDC)
green/yellow (earth)
Ex d or Ex e
Junction Box
Flying
lead
(temporary
connection)
BLU
Black 0V
Red +24V
Green/ GND
2-wire
crimp ferrules
6
1
6
black (0V)
Safety/
protective
ground
4-20mA
BRN
A
B
Cable
Earth Terminal
GRN/YEL GND
WHITE 4-20mA
ORANGE A
BLUE B
RED +24V
BLACK 0V
67
Cross-Duct
Receiver
connections
blue (B)
orange (A)
red (+24VDC)
white (4-20mA)
black (0V)
green/yellow (earth)
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.
4-20mA
Controller
GND
0V
Connections
+24V
Shield
Earth
Receiver
Connections
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