14 • 65-2435RK CO Transmitter
10. Install the rubber boot with charcoal filter onto the replacement sensor’s face.
11. Carefully plug the replacement sensor into the socket pattern that is located in the top
section of the detector housing.
NOTE:
Match the sensor’s male pins with the four female sockets as you plug the sensor into
the socket.
12. Screw the bottom section of the detector housing onto the top section.
13. Turn on or plug in incoming power at the power source end.
14. Turn on the controller.
CAUTION:
Allow the replacement sensor to warm up for 5 minutes
before you continue with
the next step.
15. Set the null potentiometer on the amplifier as described in the Setting the Null
Potentiometer section.
CAUTION:
The null potentiometer must be set whenever a sensor is changed or the
hydrogen compensation may not work properly.
16. Calibrate the replacement sensor as described in the Calibration section of this manual.
Replacing the Charcoal Filter
1. Turn off the controller.
2. Turn off or unplug incoming power at the power source end.
3. Unscrew the bottom section of the CO detector housing from the top section.
NOTE:
Be sure the two cap gaskets remain seated and that they don’t fall out.
4. Unplug and remove the CO sensor with the boot and charcoal filter attached.
5. Remove the rubber boot that secures the charcoal filter to the CO sensor.
6. Remove the charcoal filter from the rubber boot.
7. Place the replacement filter in the rubber boot in the same position as the filter you
removed in the previous step.
8. Reinstall the rubber boot with charcoal filter to the CO sensor.
9. Carefully plug the replacement sensor into the socket pattern that is located in the top
section of the detector housing.
NOTE:
Match the sensor’s male pins with the four female sockets as you plug the sensor into
the sockets.
