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SPECIFICATIONS
Mounting: 2 in 1 bracket for standard at and gutter installation
Sensor Type: Industry-standard hygroscopic disc stack with adjustable rainfall sensitivity
Rating: 3 amp, 24 V AC, NC (Normally Close contacts)
Operating Temperature Range: 14°F to 149°F (-10°C to 65°C)
Hardware: Stainless steel
Housing: UV-resistant engineered polymer
Rain Sensor Warranty: Two years
ADDITIONAL SPECS FOR WIRELESS VERSION:
Rain/Freeze Wireless Range: Up to 400 feet or 120 meters (Line of Sight)
Freeze Set Point: 37°F for 3208-WRFS (Wireless Rain Freeze Sensor)
Average Battery Life: Designed to operate up to 8 years (under normal conditions)
ADDITIONAL SPECS FOR WIRED VERSIONS:
Control Wire: 25' outdoor-rated, 2-wire cable, UL approved
Freeze Set Point: 37°F for 3208-HRFS (Rain Freeze Sensor)
TROUBLESHOOTING
Follow these simple steps before replacing your rain sensor:
System will not turn on:
a. Check to see that the rain sensor discs are dry and switch “clicks” on and off freely by
pressing the top of the spindle.
b. Look for breaks in the wire leading to the rain sensor and check all wire junctions.
c. If the rain sensor is dry and the wire leading to it is good, check the rain sensor switch by
nicking the insulation of the two “outer” wires near the unit to expose copper. Turn one
sprinkler zone on, and apply a “jumper wire” across the two exposed wires. If the sprinkler
now comes on, the switch is bad. Wrap all nicked wires with electrical tape.
d. The rain sensor is wired to function with most controllers (normally closed). If you are
unable to make the sensor work with the suggestion above you may have a unique controller
(normally open).
System will not shut off even after heavy rainfall:
a. Check wiring for correct installation (See “Adjustments and Operation” section).
b. Check sensitivity setting on rain sensor, and move the cap to a more sensitive setting. The
rain sensor is an accurate rain gauge and can be veried by setting up a “tube” type rain
gauge in the same vicinity and making periodic readings.
c. Check for obstructions to rainfall such as overhangs, trees or walls.
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