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Registered Member #289
Joined: Mon Mar 06 2006, 10:45AM
Location: Conroe, TX
Posts: 154
I have two p6015s I filled with mineral oil and re-compensated about 5 years ago. I routinely use them up to ~3MHz (sine and square waveforms) with no problems. I'm currently using one to monitor pulse cap switching at 16kv and have no flash over issues. If you have a dry probe give mineral oil a shot, you can always drain it if you're not happy with the results....
Registered Member #3271
Joined: Mon Oct 04 2010, 02:29AM
Location: Canada
Posts: 159
hvguy wrote ...
I have two p6015s I filled with mineral oil and re-compensated about 5 years ago. I routinely use them up to ~3MHz (sine and square waveforms) with no problems. I'm currently using one to monitor pulse cap switching at 16kv and have no flash over issues. If you have a dry probe give mineral oil a shot, you can always drain it if you're not happy with the results....
I was unable to compensate mine when I tried using dielectric oil a few years ago. Unfortunately I dont remember what kind but it was meant for high voltage use. Perhaps too high a dielectric constant?
The mineral oil you used is the (non perfumed, I hope) that you can get in a pharmacy?
Registered Member #195
Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
Hi Patrick, I happen to talk to a pulse power engineer at work and if you have any diala oil that would work and you would have to readjust the probe. the dialectric constant is about 2
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
thanks TeraVolt, i dont use the real oil, i usually just snag food oil, but thanks anyway, i bought HV resistors which will be here in 2 days, ill make my own probe, or i will buy the p0615A soon.
Registered Member #162
Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140
If you can find a p6015(a) cheaply go fo it, you would spend many many hours to get similar stability, accuracy, bandwidth, low capacitance and shielding - oh, and insulation too ;)
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Sulaiman wrote ...
If you can find a p6015(a) cheaply go fo it, you would spend many many hours to get similar stability, accuracy, bandwidth, low capacitance and shielding - oh, and insulation too ;)
ok well ill compare them and see... ive been told that the NorthStar probes are even better, and they have fewer adjustments nthen the tektronics, but ill snag a p6015 if i can.
Registered Member #195
Joined: Fri Feb 17 2006, 08:27PM
Location: Berkeley, ca.
Posts: 1111
hi Patrick those NorthStar probes are expensive but nice. maby you are aproching this wrong what kind mesurement are you trying to make. do you want a scope tool
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
yeah ive got qoutes from $1840 to $2400 for the pvm series ones.
and i need a o-scope probe w/oscope... i need to see 2 and 4 channels of 4 different signal and HV traces, so i can see arrival time and phase type relations @ sine waves and square waves at about 3000Hz - 40kHz, @20-40kV for my DeSeversky lifters graduate project.
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fluorocarbon for a tektronix p6015 hv probe .....
