Products > Test Equipment
Measuring ~ 400V on oscope - 10:1 OK or differential probes ?
Fungus:
--- Quote from: tggzzz on November 01, 2023, 12:50:56 pm ---Personally I'd invest in a HV differential probe, so I could have peace of mind.
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It's worth it if you do this a lot. The Micsig ones aren't expensive for what you get.
Speaking of Micsig: My STO1104C came with four fixed 10x probes. Smart decision, IMHO.
TomKatt:
As mentioned, I have a Micsig DP10007 10X/100X differential probe - it's just that I understand it to be noisier than conventional probes, and noise/distortion is exactly what I'm investigating.
I'll probably pick up a set of fixed 10X ProbeMasters at some point - they are really nice and have the best set of optional adapters I've seen for probes. But it's not often I measure voltages approaching my scopes limit.
tggzzz:
--- Quote from: Fungus on November 01, 2023, 12:54:56 pm ---
--- Quote from: TomKatt on November 01, 2023, 12:22:34 pm ---I do pay special attention to that, and fortunately the ProbeMaster design is such that the small switch is quite stiff and not easily moved by mistake - you really need to intentionally move it.
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Re-check it after you've had visitors. Or every time you pick it up if there's children around. :)
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Or there are cats around.
Or - perhaps especially - if there is you around. Don't ask me how I know; you would get an essay rather than a bullet point :(
KungFuJosh:
--- Quote from: TomKatt on November 01, 2023, 12:22:34 pm ---Actually, my ProbeMaster set is 1X/10X. I'm probably one of the minority that frequently uses 1X for low impedance power measurements.
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Oh, you only mentioned the 10X, so I assumed. My bad. I have 4 fixed PM 10X probes. I'm going to get a fixed 1X probe or two soon. I don't like the switches, not because of their quality, but because I don't want to be able to forget what position it's in. 😉
TomKatt:
--- Quote from: KungFuJosh on November 01, 2023, 03:00:00 pm ---Oh, you only mentioned the 10X, so I assumed. My bad. I have 4 fixed PM 10X probes. I'm going to get a fixed 1X probe or two soon. I don't like the switches, not because of their quality, but because I don't want to be able to forget what position it's in. 😉
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Yeah, if I had it to do over again I'd probably have got 2 pairs each fixed. Oh well.
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