Global Water WL400 Manual page 8

800-876-1172  globalw.com
Cable O.D.:
Vent tube:
Shield:
Temperature range:
Weight:
a. 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.
b. The water level 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.
c. To check the water level sensor calibration the following supplies are
needed:
1 column of water (the closer the depth is to the maximum range of the
sensor the better the calibration will be)
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 water level calibration worksheet.
Global Water
7.8mm (0.307")
HD Polyethylene
Aluminum Mylar
-30 to 85°C (-22 to 185°F)
~65g/m (0.7 oz/ft)
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