Author Topic: Rigol DS2072A probe compensation  (Read 3790 times)

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Offline Prime73Topic starter

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Rigol DS2072A probe compensation
« on: September 06, 2014, 02:30:22 am »
Trying to compensate a probe on my Rigol DS2072A ( the probe is Rigol RP330A that came with it) and on both channels just can't do it. It either overcompensate or under compensate. Here is a screenshot #1 off the scope showing the best I get with the probe.

Below is a screenshot #2 taken with another Rigol RP330A probe connected. I've adjusted this one just fine without any issues.

Is it a faulty probe or I just miss something obvious?
 

Online Simon

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Re: Rigol DS2072A probe compensation
« Reply #1 on: September 06, 2014, 07:14:05 am »
You are using a plastic screwdriver ?
 

Offline Prime73Topic starter

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Re: Rigol DS2072A probe compensation
« Reply #2 on: September 06, 2014, 11:54:33 am »
You are using a plastic screwdriver ?
yes, the one that came with it.
 

Offline Prime73Topic starter

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Re: Rigol DS2072A probe compensation
« Reply #3 on: September 06, 2014, 03:29:22 pm »
here are two more screenshots

#1 possibly "faulty" probe is connected to channel 1 and a good one is on channel 2

#2 probes are swapped (faulty probe is on channel #2)
 

Online Simon

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Re: Rigol DS2072A probe compensation
« Reply #4 on: September 06, 2014, 07:15:41 pm »
Does sound like a faulty probe.
 

Offline tautech

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Re: Rigol DS2072A probe compensation
« Reply #5 on: September 06, 2014, 08:05:33 pm »
Most probes are modular to some degree. Some dismantle completely.
You could detach the cable from the probe and swap with another to find where the fault is.

Some tips unscrew, insulation tube on tip slides off, cable plugs in, BNC compensation unplugs etc. etc.
Have a "play" with the faulty one first to understand how they are put together.
Check reference (GND) continuity from tip to BNC.
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Offline miguelvp

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Re: Rigol DS2072A probe compensation
« Reply #6 on: September 07, 2014, 05:12:29 am »
I've purchased these to have spares, but I like them so much that the rigol probes became the spares.

https://www.mortoncontrols.com/index.php/clearance/utp06.html

Only downside is that the 1x 10x slider moves too easy .
 

Offline Prime73Topic starter

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Re: Rigol DS2072A probe compensation
« Reply #7 on: September 07, 2014, 12:45:15 pm »
I've purchased these to have spares, but I like them so much that the rigol probes became the spares.

https://www.mortoncontrols.com/index.php/clearance/utp06.html

Only downside is that the 1x 10x slider moves too easy .

thanks for the tip. these seem nice, however they want $30 for shipping to Canada.
I'm thinking to get these instead: http://www.ebay.ca/itm/1PC-150-200-250-300-350-400-Or-500-MHz-Oscillo-Scope-Clip-Probe-Kit-X10-X1-600V-/360940774562?pt=US_Cell_Phone_PDA_Cables_Adapters&var&hash=item5409bf24a2&_uhb=1

The only question I have - should I buy 400 MHz or 300 MHz version ( I think that extra probe's bandwidth wouldn't hurt)?
« Last Edit: September 09, 2014, 02:40:08 pm by Prime73 »
 

Offline David Hess

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Re: Rigol DS2072A probe compensation
« Reply #8 on: September 07, 2014, 07:23:34 pm »
I'm thinking to get these instead: http://www.ebay.ca/itm/1PC-150-200-250-300-350-400-Or-500-MHz-Oscillo-Scope-Clip-Probe-Kit-X10-X1-600V-/360940774562?pt=US_Cell_Phone_PDA_Cables_Adapters&var&hash=item5409bf24a2&_uhb=1

The only question I have - should I buy 400 MHz or 300 MHz version ( my scope is upgraded to 300 however I think that extra probe's bandwidth wouldn't hurt)?

There was another discussion thread on EEVBlog about these and test results showed that they are junk.
 


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