Refrigeration gas leak tracer teardown

This unit uses the variable ionisation of the air to detect specific refrigeration gasses. It uses fairly complex linear circuitry to create a two speed pulsed tone that can be tuned to increase and decrease sensitivity as needed.

This unit is only intended for specific refrigerants like CFCs and HFCs. For other gases a more sophisticated sensor like a heated diode sensor may be required.

This application is where a microcontroller could have been used to provide a much more useful rising and falling tone or click speed with minimal component count. Literally just a classic 8 pin MCU.

The channel I mentioned - HVACR videos is here:-
https://www.youtube.com/@HVACRVIDEOS
Chris videos service calls and gives a lot of detail while he's working.


If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- https://www.bigclive.com/coffee.htm
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