How do I replace the sensor in my Triplett RLD400 Refrigerant Leak Detector

[LeCourtney]

Replacing the sensor in your Triplett RLD400 refrigerant leak detector is a straightforward process. Here's how to do it:

1. Power Down: Begin by turning OFF the leak detector to ensure safety.
2. Remove the Probe Tip Collar: Unscrew the probe tip collar (part 6 in the manual) by turning it counterclockwise. This will loosen and allow you to remove it.
3. Extract the Old Sensor: Gently remove the existing sensor (part 7) from the device. You might need small pliers or a similar tool for a secure grip. Carefully pull the sensor out until you expose its connector, being careful not to damage any wires.
4. Disconnect the Old Sensor: Unplug the old sensor from the 3-conductor connector. Make sure to note the correct orientation. The black wire on the connector should align with the black dot on the sensor.
5. Install the New Sensor: Insert the new sensor into the connector, ensuring correct alignment. The black wire on the connector must align with the black dot on the new sensor.
6. Reattach the Protective Collar: Securely place the protective collar back onto the probe tip, and tighten it by turning it clockwise.
7. Power Up: Once the new sensor and protective collar are correctly in place, you can power ON the leak detector.

Important Note: Always consult the Triplett RLD400 user manual for detailed instructions and illustrations. Proper sensor replacement is critical for the accurate and reliable function of your refrigerant leak detector.