Xylem WQ pH SENSORS User Manual download pdf (Page 6)

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IV. Temperature Sensor

a. Temperature sensor specifications.

Output: 4-19mA

Range: -50° C to + 50° C

Accuracy: ±0.2° F or ±0.1° C

Operating Voltage: 10-36VDC

Current Draw: Same as sensor output.

Warm Up Time: 5 seconds minimum

Operating Temperature: -50°C to +100°C

Size of Probe: 3/4" diameter x 4 1/2" long

Weight: 1/2 lb.

b. The sensor is a two-wire sensor using the red wire for power and the

black wire for the output signal. Warning: Always connect the

sensor with the power turned off.

c. The temperature sensor may be stored without any special provisions.

Place the sensor inside a bag to keep the sensor clean and store on a

shelf or hang it on a wall.

d. To check the temperature sensor calibration you will need:

1 thermometer

3 containers of water

1 power supply

1 current meter

Connecting wires as necessary

Connect the sensor to the power supply and current meter in

the following way. Attach the black wire to the positive input of the

current meter. Connect the ground terminal of the power supply to the

ground of the current meter. Attach the red wire to the positive

terminal of the power supply. See Appendix B. Warning: Always

connect the sensor with the power turned off.

See Appendix A for the temperature calibration worksheet.

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Xylem WQ pH SENSORS User Manual Page 6