Hach LDO AQS sensors, User Manual

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Figure 3 Installation options
1 Rail mount 4 Chain mount
2 Float mount 5 Union mount (not seawater probe compatible)
3 Air blast system mount (not seawater probe
compatible)
Electrical installation
N O T I C E
Make sure to energize the sensor with a 12 VDC, 0.25 A, 3 W compliant power supply (Hach item no. 6632500 or
equivalent), or damage to the sensor can occur because of insufficient suppression of electrical surge or
transients.
The sensor cable has five stripped wires and connects directly to the control system sensor input
terminal. Refer to
Table 1 to connect the sensor to the control system.
Table 1 Wiring information
Wire color Description
Brown 12 VDC power (+)
Black 12 VDC power (–)
Blue Communication (+)
White Communication (–)
Shield (bare stranded wire) Earth ground
English 7