I need a schematic for a gadget that can locate the EXACT point where a heating wire element is broken beneath floor tiles . I have built many detectors like FOX & HOUND tracers , SIGNAL GENERATORS & DETECTORS etc. All work ok if i probe VERY near the wire , but fail hopelessly once the wire is under a floor tile with cement , screet etc.
I am currently using an imported frequency generator & detector , but i cannot copy the circuit as the warranty seals are intact & my manager refuses to let me tamper with them
This unit works extremely well , can anyone please help in this regard ?
A metal detector can yield a good path of the heating element but will not reveal the opening in the circuit.
If the fox&hound does not work, first make triple sure the end element connections/splices to the power source are truly powered by paralleling a plain light bulb, not measuring with a meter.
Or put high AC voltage (like from a neon sign transformer or an electronic air cleaner power supply) low current into the wire and detect the arcing with an AM radio.