Nice video but one thing I notice on various videos, not just here, is people switching units while they are explaining things. That’s fine for me, but guys and girls who aren’t familiar with this can cause confusion. Volts and amps are to different things , are measured two different ways.
Excellent work guys, thanks for all your efforts. Could you gear towards some Lpg? It would be nice if you could refresh on the BBU's and also warm air units 👍
I'm a little confused. What is the lead that you attached the Multi Meter to? You said you removed it from the rectification probe, but surely, if you removed the lead then the rectification probe is not connected & so the system would go into lock-out - but it didn't lock-out (until you turned off the gas supply). Why is this?
Question for Roy: assuming one has a meter capable of reading down to microamps, would it be better to measure the current flowing through the sensor circuit, or, as you've described, measure the voltage of the sensor circuit? Thanks for all of the fantastic videos they've been a massive help.
Hi Philip, Thanks for the feedback, it's much appreciated. I have used both methods, it all depends on the Multimeter, and what scales it has. I find most new engineers understand voltages better than microamps.
Measure what the pcb is measuring, which is micro amps. Voltage will not tell you anything worth knowing, measuring micro amps will inform you of the ionisation occurring which if your clever enough can tell you so much information regarding flame ferocity, burner pressure, perfect combustion and the stochiometric point etc.
I thought that doing that test with the test leads being inline it you would be in amps scale and not DCV but you have a viable reading I will try this along with reading in milliamperes
