Author Topic: Issue with Siglent PP215 Passive Scope Probe  (Read 300 times)

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Offline mawyatt

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Issue with Siglent PP215 Passive Scope Probe
« on: June 19, 2021, 07:38:19 pm »
I've become a fan of Siglent equipment, but not because of any bias or financial gain, but simply because the Siglent equipment performs (well almost) and is reasonable. I've been delighted with the 1st Siglent DSO and this set a baseline for expectations which generally have been met by other Siglent gear we've purchased, almost $6K to date and more expected soon.

However, I am not happy with the output jack spacing on the SDP3303X, nor the menu and touch screen on the SDG2042X, not what I have come to expect from Siglent. Recently we became involved with a difficult & complex design which hopefully will lead to a custom chip developed in the future. During some testing we were tracing a problem with the DSO, only to find after many hours of swearing and frustration it was the DAMN PP215 Scope Probe causing the issue!! It was/is intermittent and wiggling the base causes the trace to jump around, not good thing to trace precision low level sensitive analog signals  :P

When I was still working a regular job (retired a few years ago), any of this non-sense would get cut in half and tossed into the garbage, had no time for faulty equipment, test leads or probes. Almost grabbed the snippers, but decided to tie the probe in a knot instead!!

Think some others have had issues with these PP215 probes, so going to get some SP2030A probes instead. Lesson learned again, and again, and again....... always check your equipment even when doing development work. It's always easy to blame yourself, your design, or someone else, when it's faulty equipment that has Murphy laughing at you |O

Do my best to keep the door closed and locked for Murphy, but he seems to find a way in now and then :o

Best,
Research is like a treasure hunt, you don't know where to look or what you'll find!
~Wyatt Labs by Mike~
 

Online bdunham7

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Re: Issue with Siglent PP215 Passive Scope Probe
« Reply #1 on: June 19, 2021, 07:54:21 pm »
I haven't had issues yet with the PP215, but I don't use them very hard or very much.  My PP510 is falling-apart junk by now.  I'd  recommend you look at Probemaster.

https://probemaster.com/4900-series-oscilloscope-probes/
A 3.5 digit 4.5 digit 5 digit 5.5 digit 6.5 digit 7.5 digit DMM is good enough for most people.
 

Online tautech

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Re: Issue with Siglent PP215 Passive Scope Probe
« Reply #2 on: June 19, 2021, 08:15:07 pm »
Think some others have had issues with these PP215 probes, so going to get some SP2030A probes instead.
215 failures are rare IME but I have had just 1 dud from new and several 510 but recently duds are nonexistent although we now keep stock of a few of each as we check and compensate every probe before they go out the door.
510 have leapt in price where RRP is $25 now where once they were just $15 yet I have found some nice and more compact 100 MHz 10x autosense probes for just $15 our cost.

300 MHz 10x autosense 2030A are indeed the best bang for buck of probes Siglent offer but @ $59ea I went looking for better deals from Pintek where I found 350 MHz autosense 10x CP-3351R for $40 (our cost) so grabbed a few to properly evaluate them that I have yet to do.
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Offline mawyatt

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Re: Issue with Siglent PP215 Passive Scope Probe
« Reply #3 on: June 19, 2021, 08:43:36 pm »
I'm not easy on equipment, but not abusive either. See no reason this probe should have become intermittent.

Had already ordered more probes (P2030A) and other equipment before I posted this, this included another SDS2104X+ (already have a 2X+) & SDP3303X-E (already have a 3303X_E also), these will supplement other equipment (lots of PS & Reference voltages involved, +75~150V, -75~150V, +13.75V, -13.75V, +12V, two +5Vs, +3.3V, +2.5V, and a few others!).

Curious to see what you find Rob, keep us informed.

Now back to designing ::)

Best,
Research is like a treasure hunt, you don't know where to look or what you'll find!
~Wyatt Labs by Mike~
 

Online tautech

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Re: Issue with Siglent PP215 Passive Scope Probe
« Reply #4 on: June 19, 2021, 09:01:50 pm »
I'm not easy on equipment, but not abusive either. See no reason this probe should have become intermittent.
Yes there's no reason why they shouldn't last a few years of normal wear and tear.

Quote
Curious to see what you find Rob, keep us informed.
I have 100, 350, 500 and 600 MHz passive 10x autosense probes from Pintek and one of their current probes to evaluate against Siglent's comparable offerings so there's a good bit of work to do that can only be done justice to over quiet spells during our winter months. Also a reasonably compact 1000x 8KV probe that I should write a little about too.
Wifes Bday in a few days and a road trip in the planning will both put any investigations on hold for a couple of weeks.  ::)
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