Author Topic: NEW 100MHz Keysight Scope Release on 1st March 2017  (Read 164864 times)

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Offline madires

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #750 on: May 29, 2017, 03:24:38 pm »
Is that probe genuine (possibly rebranded) or a counterfeit?
 

Offline serggio

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #751 on: May 29, 2017, 03:42:33 pm »
Is that probe genuine (possibly rebranded) or a counterfeit?
How I can say? I do not made any molecular analyses for probe/parts/package... I do not see any issue at package, printing, included part, except what inside probes itself.
I bought it on eBay from UK, I bought my scope at Amazon from US, but is this really matter?
I can make any Hi-Res photos for each parts, I can sent it directly to Keysight office, but I really have interest before it, is all this probes are the same? May be someone have same probes
 

Offline serggio

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #752 on: May 29, 2017, 03:50:48 pm »
This is N2140A probe that been included with my scope.
No need much experience for move rubber sleeve and look what inside







Interesting to see central conductor under capacitor body, right?

And another one

« Last Edit: May 29, 2017, 03:55:42 pm by serggio »
 

Online PA0PBZ

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #753 on: May 29, 2017, 06:15:05 pm »
One of the four N2890A I got with my 3000X directly from Keysight. Bag says made in China, soldering looks a bit better but nobody cared to remove the flux, and the top and bottom shields also not soldered.





Keyboard error: Press F1 to continue.
 

Offline Amazing

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #754 on: May 29, 2017, 06:42:48 pm »
I was pretty surprised by serggio's photos, so I took apart one of the N2843A probes that came with the 3104T that I purchased in December 2016.

I don't have time to take photos right now, but it was similar to what serggio posted;  Slightly better in some respects.  Mine also had blobby solder, misaligned components, flux everywhere, and the shield covers were not soldered down.  :--

My probes came direct from the Keysight factory in Malaysia so it's unlikely that they are fakes.

I REALLY wasn't expecting this lack of quality from Keysight. 


« Last Edit: May 29, 2017, 06:50:41 pm by Amazing »
 
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Offline serggio

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #755 on: May 29, 2017, 06:58:37 pm »
Hi Amazing,
Many thanks for confirmation!
I also contacted with seller and he confirmed that this probes was supplied by Keysight.
I do not see any reason that this is counterfeit, but I can say:
Keysight want to much money when established price for that at $191  :-- No way, probably $19,10 will be enough.

As for noise when you touch probe's body... Probably this is not seen at DSOX 2000/3000 series when probe's readout actuator connected to the scope contact, but my scope don't have this connection, that is because bad shield inside probe was very sensitive to noises. Don't know, probably another one "two months task" for Keysight probe's team.
« Last Edit: May 29, 2017, 07:16:15 pm by serggio »
 

Offline Amazing

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #756 on: May 29, 2017, 07:36:45 pm »

I did a quick test and I'm not seeing any noise on the 3000T when I tap the probe body (scope end).  I have to wiggle it quite a bit to get any trace disturbance, much more than I would in any normal situation.

Yes, it's ugly inside but this is still much better than a $19 probe.  I've had quite a few of those cheap probes in the past and they all just seem to fall apart at some point even with no abuse. 

On the other hand, the probes that came with my Rigol DS1202CA have been fantastic, and it's been almost a decade...
 

Offline serggio

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #757 on: May 29, 2017, 07:45:13 pm »
Just connect it to Probe Comp terminal, setup 10-50 mV/div and tough it from probe compensation side.

http://radikal.ru/video/8TqXPso01OG
« Last Edit: May 29, 2017, 07:50:53 pm by serggio »
 

Online nctnico

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #758 on: May 29, 2017, 07:58:59 pm »
Yes, it's ugly inside but this is still much better than a $19 probe.  I've had quite a few of those cheap probes in the past and they all just seem to fall apart at some point even with no abuse. 
What is cheap? Testec makes decent probes and you can buy a set for less than 50 euro or so. Remember these kind of high-Z passive probes are consumables anyway. Sooner or later they will break.
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Offline Amazing

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #759 on: May 29, 2017, 08:10:24 pm »
serggio,  I duplicated your noise test but it's not happening for me.
 

Offline serggio

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #760 on: May 29, 2017, 08:29:32 pm »
Thank Amazing!
As I assumed, this is probably my scope do not have readout actuator connection, and before soldering shield covers to body that's been pretty much bad than in my video... They been sensitive at 1v/div.  :palm:
But, regarding to Keysight web site this probes compatible with my scope too..
http://www.keysight.com/en/pc-1659288/oscilloscope-probes?pm=SC&nid=-32557.0&cc=US&lc=eng

Updated:
Noises, when touching N2843A probe body close to BNC appears only if scope isolated from ground. Same time N2140A probe do not sensitive to touching in same condition with same scope
« Last Edit: June 06, 2017, 09:52:15 pm by serggio »
 

Offline serggio

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #761 on: June 06, 2017, 09:31:00 pm »
Dear Keysight!
Any news with N2140A probes compensation drift issue?
My warranty limited, it's not lifetime.
I understand that you have nothing to say about "quality" N2843A probes, but it not have this issue with temperature drift compensation at least.
« Last Edit: June 06, 2017, 09:43:18 pm by serggio »
 

Offline pascal_sweden

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #762 on: June 14, 2017, 06:14:35 pm »
The probe compensation drift issue has been reported on April 27th.

Still no clear resolution from Keysight up to now. We are talking about more than 5 weeks!

Any update dear Keysight? Are you still actively working on this, or have you dropped the investigation?
 

Offline Keysight DanielBogdanoff

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #763 on: June 14, 2017, 07:02:36 pm »
Sorry, I thought I had commented on this last week. It's still being worked on, but that's all I can say at this point.

-Daniel
 

Offline serggio

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #764 on: June 14, 2017, 07:18:52 pm »
Hi Daniel,
Probably you seen my photos for N2843A probes.
Could you comment it, pls?

Regards
 

Offline Keysight DanielBogdanoff

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #765 on: June 20, 2017, 07:44:06 pm »
Good question on the probes - we don't solder the shielding in for a variety of manufacturing reasons and leave it as a snap-together part. When talking with the probes team, they agreed that soldering them would make a better shield, but the current non-soldered option still performs quite well unless you have a significant noise source nearby. And, if you have a significant noise source nearby, it'll likely be causing issues beyond the probe shielding.
 

Offline dentaku

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #766 on: July 08, 2017, 03:00:17 am »
This is N2140A probe that been included with my scope.
No need much experience for move rubber sleeve and look what inside


Interesting to see central conductor under capacitor body, right?

And another one


It's good to see photos of what's inside one of those probes. One of mine was defective right out of the box and I just got an email from someone at Keysight saying that he would RMA it.
« Last Edit: July 12, 2017, 03:29:19 pm by dentaku »
 

Offline serggio

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #767 on: July 08, 2017, 09:49:56 am »
It's good to see photos of what's inside one of those probes. One of mine was defective right out of the box and I just got an email from someone at Keysight saying that he would RMA it.
Seems, in race of profit some manufacturers forget what Quality control is.  :--
 

Online ebastler

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #768 on: July 08, 2017, 10:56:38 am »
It's good to see photos of what's inside one of those probes.

But it's not so good to see them twice, due to your full quote.  :P

Please limit quotes to what is necessary to provide a reference for your post, especially if they have lots of pictures. Thanks!
 

Offline Fred27

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #769 on: July 08, 2017, 01:17:13 pm »
Personally it bugs me when people quote a long post that's directly above their reply. In that case there's no quote need at all.
 

Offline David Hess

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #770 on: July 08, 2017, 05:05:57 pm »
It's good to see photos of what's inside one of those probes. One of mine was defective right out of the box and I just got an email from someone at Keysight saying that he would RMA it.

Seems, in race of profit some manufacturers forget what Quality control is.  :--

Many of the probes Keysight sells are OEMed by Texas based in Hong Kong and Texas OEMs probes for others also.  However, I am not sure who makes the N2140A probe.

Tektronix has not made their own probes or cable since the 1990s or something; they sold off the equipment and outsourced it all.
 

Offline serggio

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #771 on: July 08, 2017, 05:15:41 pm »
Many of the probes Keysight sells are OEMed by Texas based in Hong Kong and Texas OEMs probes for others also.  However, I am not sure who makes the N2140A probe.

Tektronix has not made their own probes or cable since the 1990s or something; they sold off the equipment and outsourced it all.
Is this really matter? Car actually consist from tens OEM components, but car manufacturers responsible for their final product. You as customer should no worry who is supplier for this OEM parts.
If Keysight offering OEM probes under their brand, they should make quality control. If they not able to send quality control engineer to their OEM parts supplier facility, that is no means that they not responsible for "their" products.
« Last Edit: July 08, 2017, 05:17:16 pm by serggio »
 

Offline David Hess

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #772 on: July 08, 2017, 06:35:51 pm »
Many of the probes Keysight sells are OEMed by Texas based in Hong Kong and Texas OEMs probes for others also.  However, I am not sure who makes the N2140A probe.

Tektronix has not made their own probes or cable since the 1990s or something; they sold off the equipment and outsourced it all.

Is this really matter? Car actually consist from tens OEM components, but car manufacturers responsible for their final product. You as customer should no worry who is supplier for this OEM parts.

If Keysight offering OEM probes under their brand, they should make quality control. If they not able to send quality control engineer to their OEM parts supplier facility, that is no means that they not responsible for "their" products.

It matters insofar as Keysight apparently has a quality control problem with their probes; the reports of drifting compensation and microphonic effects involving the shielding and the photographs showing the poor construction of the probes are not reassuring.  I have a few of the Texas probes and do not consider them equal in quality to the probes Tektronix used to make but they are acceptable for their low price.
 

Offline pascal_sweden

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #773 on: July 16, 2017, 06:41:32 am »
Any update on the probe compensation drift issue which has been reported on April 27th?
 

Offline Fred27

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Re: NEW 100MHz Keysight Scope Release on 1st March 2017
« Reply #774 on: July 16, 2017, 08:13:52 am »
@pascal_sweden You haven't even got one. Time to shut up about it now.
« Last Edit: July 17, 2017, 10:14:52 am by Fred27 »
 
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