ropeWater Detector
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3. Continuity Test
. Refering to the picture of the connector above. Disconnect the module from the green terminal block
then using a multimeter:
A. Measure the resistance between A-B.
B. Measure the resistance between A-C.
C. Measure the resistance between A-D.
D. Measure the resistance between B-C.
E. Measure the resistance between B-D.
F. Measure the resistance between C-D
Recheck A-B with a multimeter. The value should be near C-D. A-B should not be infinite otherwise it will return a sensor
error. Please send these testing results to
and include the length of the rope and the serial # which is
located on the side of the black electronics module.
Notes on the Impedance and Sensitivity of the ropeWater Sensors
T
he rope sensors come with the impedance value in the package. If they don’t have this then this is how it is calculated:
Regarding the sensing impedance, please find below the instruction to calculate it for more custom value.
Sensing Impedance = [ (Rope resistance between pin 1 and 2 + Rope resistance between pin 3 and 4) / 2] / Water Rope
length in meter
Pin 1 is the red wire on the green phoenix connector and pin 4 is the yellow wire.