Irritrol RainSensor - Manual (Page 10)

Sensor/Transmitter Battery Replacement
1. Remove the bottom cover of the Sensor/Transmitter by pressing down on the
thumb-release lever on the side of the unit. Carefully slide the circuit board out.
See Figure 13.
2. Remove the battery cover and replace using two
3V CR2032 (or equivalent) batteries. Install with
positive (+) side of the batteries facing up.
3. Reassemble the unit in reverse order.
Changing the Sensor/Transmitter Code
The transmission code for the unit is identified by
stickers on the Sensor/Transmitter and Receiver.
Although, in most cases, even if two identical units
are installed, unwanted activations would only
occur if the two sensors are set for different rainfall
amounts. However, the code may be
manually changed as follows:
1. Remove the bottom cover of the
Sensor/Transmitter by pressing down on the
thumb-release lever on the side of the unit.
Carefully slide the circuit board out.
See Figure 13.
2. Identify the code wire loops (small black wire
and white wire loops) and cut one or both loops
using end-cutting pliers.
3. Reassemble the Sensor/Transmitter and follow
the procedures provided in “Receiver Learn
Mode” above.
10
CR2032
Batteries
Transmitter
Code Wire
Loops
Figure 13
Battery
Cover