Campbell Scientific OBS-3+ and OBS300 Suspended Solids and Turbidity Monitors User Manual
Page 50
Appendix C. Electrical Connections Details
TABLE C-1. Pin numbers, electrical functions and wire color codes for OBS sensor bulkhead
connectors.
MCBH-5-FS/MCIL-5-MP
Contact Number
Electrical
Function
Wire Color
(MCBH)
Wire Color
(8425)
1
Power (5 – 15V)
Red
Red
2
Power Ground
Black
Black
3
Signal Common
Green
Green
4
High Range Signal (4X)
White
White
5
Low Range Signal (1X & 4-20 mA)
Blue
Blue
No Connection
Cable Shield
Clear/Braid
C-2
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