| Products > Test Equipment |
| AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter |
| << < (167/172) > >> |
| bobale:
Bad choice of words :D I don't usually measure high voltages, but if I go HV, that's as far as I will go. |
| TurboTom:
Just make sure there's no charring left on the PCB. Any amount of carbon deposition will lower the break-down voltage tremendously. This effect is deliberately used on most modern turbine engine spark plugs ("shunted spark plugs") to be able to run the plugs on 2000V exciters instead of the 10+kV required to break down a conventional spark plug, with the accompanying reduced requirements for interconnection, wiring and so on (lower installed weight). It's impossible to tell at what voltage the "dirty" insulation gap of your DMM will fail, but if you ever use the instrument on mains (I hope only on properly fused indoor circuits) or other similarly elevated voltage / energy circuits, it is reason to worry. Even more so since the AN8008 cannot be considered the most appropriate (read: safe) instrument for this kind of measurement anyway. |
| bobale:
Thanks for all the advice, I will definitely take more care next time. I bought it for low voltage use mostly anyway. |
| francisroan:
Hello, This is my first post on the blog (YAY!). Unfortunately, my Aneng AN8009 has sort of miscalibrated somehow, it was showing values off the usual case and so upon reading few threads(including this one) I came to realize that the meter can be re-calibrated by jumping the J2 pins. Which I did and fiddled around the values. But me being stupid, didn't think of getting an accurate calibration tool( don't have access to one anyway) and made the problem worse. No the meter is pretty much useless as it gives some gibberish value (like 830mV for a 3.86V supply). Even the NCV function doesn't seem to work anymore. So, basically, I was wondering whether I could flash the EEPROM with the stock calibration value dump? If so, where can I find the dump? I looked everywhere and I couldn't find it. I did look at Kerry D. Wongs blog on extracting the EEPROM dump and I have the necessary stuff to do it as well (Arduino and wires :P )but there is no EEPROM dump for the AN8009 model. Will the AN8008 work with this? I just need this working again ASAP. Any help is appreciated :) Thanks & Regards |
| exe:
--- Quote from: francisroan on July 10, 2020, 09:16:59 pm ---stock calibration value dump? --- End quote --- I might be able to do it tomorrow evening, but no promises. |
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