Xylem WQ730 TURBIDITY SENSOR - Manual (Page 4)

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II. Sensor Specifications
a. Specifications.
Outputs: Two, 4-20mA
Ranges: 0-50 NTU (Green Wire)
0-1000 NTU (White Wire)
Accuracy: 1% of full scale
Pressure: 30 psi maximum
Power Requirements: 10-36 VDC
20ma plus sum of both 4-20mA outputs
Warm Up Time: 3 seconds minimum
8 seconds recommended
Operating Temperature: 0°C to +50°C
Storage Temperature:
-10°C to +60°C
Dimensions: 1-1/2" diameter x 7-1/2”" long
Weight: 1 lb plus cable
b. Connections:
Red: 10-36 VDC
Black: Ground
Green: 4-20 mA low range output (50 NTU)
White: 4-20 mA high range output (1000 NTU)
Note:
The stainless steel body of the sensor is connected to
the circuit ground and must be in contact with the test
solution.
Warning: Always turn off the power when connecting or disconnecting
the sensor or it could be damaged.