Poll

Are you interested in seeing more handheld meters tested?

This testing is pointless! Please STOP damaging these meters!
3 (6.4%)
 Yes, I would like to more meters tested.
44 (93.6%)

Total Members Voted: 47

Author Topic: Handheld meter electrical robustness testing.  (Read 515987 times)

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Online joeqsmith

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Re: Handheld meter electrical robustness testing.
« Reply #2850 on: September 14, 2018, 01:13:03 am »
A few questions and comments.

How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 
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Online joeqsmith

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Re: Handheld meter electrical robustness testing.
« Reply #2851 on: September 16, 2018, 02:52:46 pm »
Brand new Brymen / AMPROBE arrived. 
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline malagas_on_fire

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Re: Handheld meter electrical robustness testing.
« Reply #2852 on: September 16, 2018, 04:07:26 pm »
Chances are that it will survives 4kv that pocket brymen/Amprobe,
If one can make knowledge flow than it will go from negative to positve , for real
 

Online IanB

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Re: Handheld meter electrical robustness testing.
« Reply #2853 on: September 16, 2018, 04:11:39 pm »
Brand new Brymen / AMPROBE arrived.

This is the one that is reported to fail without apparent cause after a certain amount of time?
I'm not an EE--what am I doing here?
 

Online joeqsmith

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Re: Handheld meter electrical robustness testing.
« Reply #2854 on: September 16, 2018, 04:39:58 pm »
Brand new Brymen / AMPROBE arrived.

This is the one that is reported to fail without apparent cause after a certain amount of time?

True reported four of them failed the same which makes me wonder.   Maybe they will chime in with some additional information.
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline 001

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Re: Handheld meter electrical robustness testing.
« Reply #2855 on: September 16, 2018, 06:21:32 pm »
Hi!
IMHO it is a sort of populism or show

No reason to destroy gear  :palm:

See hysteric tread here https://www.eevblog.com/forum/testgear/dangerous-multimeter-mastech-m890g-m890g2-(aka-dc-electronics-dc03)/

NO PROBLEM with meter but topicstarter is angry!!!  :-DD

I also use some DMM for about 18 years. Yes, it is not masterpiece - you got what you pay for. But it WORKS anyway.
« Last Edit: September 16, 2018, 06:23:15 pm by 001 »
 

Offline malagas_on_fire

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Re: Handheld meter electrical robustness testing.
« Reply #2856 on: September 16, 2018, 06:47:17 pm »
Yeah that's the kind of the multimeters that are very disposable :P You pay what you get. Sometimes you get good stuff or not :P

Some pocket meters actually have more protection input than the one on the link .

https://www.eevblog.com/forum/blog/eevblog-1083-pocket-mutimeter-shootout/?action=dlattach;attach=451189

If one can make knowledge flow than it will go from negative to positve , for real
 

Online joeqsmith

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Re: Handheld meter electrical robustness testing.
« Reply #2857 on: September 16, 2018, 07:37:05 pm »
Hi!
IMHO it is a sort of populism or show

Hello.  All of the testing has created a small channel.  I wouldn't say it was popular. If you are suggesting that the tests are somehow skewed based on popularity of a product, I am interested in understand why you would feel this way.  They basically all see the same transients.

No reason to destroy gear  :palm:
I have talked about the reasons why I run these tests.  It does not mean that you personally will find any value in the data.  That's not one of my goals. 

See hysteric tread here https://www.eevblog.com/forum/testgear/dangerous-multimeter-mastech-m890g-m890g2-(aka-dc-electronics-dc03)/

NO PROBLEM with meter but topicstarter is angry!!!  :-DD

I also use some DMM for about 18 years. Yes, it is not masterpiece - you got what you pay for. But it WORKS anyway.
I have not had a low end meter survive nearly this long.   I have a Mastech that has various problems.  I'm on my third one now in the last 10 years or so.

They seem upset about the rating on the meter.  I personally am not too concerned about the safety ratings. I seldom work do anything that would require it.  At home for my hobby, I dare say it's never.   Which again is why you see me testing at such low energy levels.  I am more interested in a meter's ability to survive some basic low energy transients that how safe it would be with an arc flash for example.   
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Online joeqsmith

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Re: Handheld meter electrical robustness testing.
« Reply #2858 on: October 14, 2018, 11:20:28 pm »
Looks like True stopped posting.   I started to look at the Amprobe meter today and would have liked to have had them check a few things.  I hope to run it this week some time.  If anyone has any special tests they would like to have ran, let me know in the next day or so and I will see if I can include it. 
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline malagas_on_fire

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Re: Handheld meter electrical robustness testing.
« Reply #2859 on: October 15, 2018, 09:45:51 pm »
Humm interesting pocket meter, EMC Meets EN61326 , Hit with the ESD gun :P

Test if it is susceptible to RF ... and also check size comparisson with previous pocket meters,
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Offline malagas_on_fire

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Re: Handheld meter electrical robustness testing.
« Reply #2860 on: October 16, 2018, 09:49:30 am »
I believe that in that videos where Dave selected the best pocket meter of price range didn't include the amprobe pm55 and voltlog it had an aneng, mastech and the uni-t 120c. In that case can you put the aneng like meter or fluke 101 ?

 Sorry to be persistent but it looks to me a little bigger in height than the ones that have being tested.


Well i have my offered pocket meter ut-120c and it's has less usability than i expected :( The probes don't stick inside wago's connectors so no 230V experiences :P Yes they can be placed on the test pins but metal gets exposed..
If one can make knowledge flow than it will go from negative to positve , for real
 

Online joeqsmith

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Re: Handheld meter electrical robustness testing.
« Reply #2861 on: October 16, 2018, 10:52:48 am »
I believe that in that videos where Dave selected the best pocket meter of price range didn't include the amprobe pm55 and voltlog it had an aneng, mastech and the uni-t 120c. In that case can you put the aneng like meter or fluke 101 ? 

Sorry to be persistent but it looks to me a little bigger in height than the ones that have being tested.

I am not sure what you are asking.  Are you wanting to know if the Fluke 101 will fit inside the case that was supplied with the PM55A? 

The dimensions are normally in the manuals which are on-line.  The PM55A is 113 x 53 x 10.2 mm.   The Fluke 101 is 130 mm x 65 mm x 27mm.   The internet is powerful.   :-DD
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline malagas_on_fire

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Re: Handheld meter electrical robustness testing.
« Reply #2862 on: October 16, 2018, 03:54:47 pm »
Yes there are manuals and specs but for example if you look at the manual of the unit 204a the picture of the meter does appear like the 203 more because of the curved lcd.

A visual comparisson always helps more. I was suggesting putting side by side the amprobe and fluke 101. 

My print is out of inks to do a real size comparrison  :-DD
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Online rsjsouza

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Re: Handheld meter electrical robustness testing.
« Reply #2863 on: October 16, 2018, 04:13:55 pm »
Looks like True stopped posting.
001 as well.  ;D

Joe, one interesting meter that you may consider testing in the future is the nice PM300 from Sanwa; it is rated for CATIV 300V / CAT III 600V and is quite well built. It is protected by a GDT and a Varistor on a string of resistors.


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Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Online joeqsmith

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Re: Handheld meter electrical robustness testing.
« Reply #2864 on: October 16, 2018, 05:10:16 pm »
A visual comparisson always helps more. I was suggesting putting side by side the amprobe and fluke 101. 

No problem.  I will show it next to the 101 and a few others.   
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 
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Online joeqsmith

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Re: Handheld meter electrical robustness testing.
« Reply #2865 on: October 16, 2018, 05:13:19 pm »
Looks like True stopped posting.
001 as well.  ;D

Joe, one interesting meter that you may consider testing in the future is the nice PM300 from Sanwa; it is rated for CATIV 300V / CAT III 600V and is quite well built. It is protected by a GDT and a Varistor on a string of resistors.


Think the SANWA would survive to higher levels than this little Brymen?  Did Dave do anything to it electrically in his reviews?   
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Online rsjsouza

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Re: Handheld meter electrical robustness testing.
« Reply #2866 on: October 16, 2018, 07:15:25 pm »
Looks like True stopped posting.
001 as well.  ;D

Joe, one interesting meter that you may consider testing in the future is the nice PM300 from Sanwa; it is rated for CATIV 300V / CAT III 600V and is quite well built. It is protected by a GDT and a Varistor on a string of resistors.


Think the SANWA would survive to higher levels than this little Brymen?  Did Dave do anything to it electrically in his reviews?   
Just a hunch but I suspect so, given that Sanwa is a very reputable japanese brand that would not lie about CAT ratings.

Dave did not put it through its paces, though.
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline malagas_on_fire

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Re: Handheld meter electrical robustness testing.
« Reply #2867 on: October 16, 2018, 09:05:33 pm »
And if you think the harbor freight meter is bad , then check this:

https://youtu.be/R693vS09hoo

Lucky one on the mains :P
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Online rsjsouza

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Re: Handheld meter electrical robustness testing.
« Reply #2868 on: October 16, 2018, 10:35:34 pm »
This is the same model that Harbor Freight sells. They and many other no-name brands around the globe.

I did a comparison with a few models manufactured over the years (in portuguese) - you can tell the similarities.

https://youtu.be/eskV_OJtH48

(Joe, sorry for the plugs, but it is quite rare that I can link a video to someone that understands what I am actually talking on my videos :D )
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline malagas_on_fire

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Re: Handheld meter electrical robustness testing.
« Reply #2869 on: October 16, 2018, 11:41:17 pm »
Thanks for sharing the video. At 12:32 the rotary switch was a bit loose :P

jesus mine that blow on the mains was from mastech, in 2000 .  input voltage was blown away.. PTC, traces :P



And they tend to be minimal has years go... The other 3 dollar meter didn't have a fuse :P and had some resistors that may no be good to handle the input voltage.

If one can make knowledge flow than it will go from negative to positve , for real
 

Offline bitseeker

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Re: Handheld meter electrical robustness testing.
« Reply #2870 on: October 17, 2018, 12:06:12 am »
Yep, they get more and more simplified with each revision. It's the art of cost shaving.
I TEA.
 

Online joeqsmith

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Re: Handheld meter electrical robustness testing.
« Reply #2871 on: October 17, 2018, 02:06:01 am »
Looks like True stopped posting.
001 as well.  ;D

Joe, one interesting meter that you may consider testing in the future is the nice PM300 from Sanwa; it is rated for CATIV 300V / CAT III 600V and is quite well built. It is protected by a GDT and a Varistor on a string of resistors.


Think the SANWA would survive to higher levels than this little Brymen?  Did Dave do anything to it electrically in his reviews?   
Just a hunch but I suspect so, given that Sanwa is a very reputable japanese brand that would not lie about CAT ratings.

Dave did not put it through its paces, though.

I've had meters that were certified to the safety standards do very poorly in my tests.  I've never looked at any Sanwa products but this is going to be the 6th Brymen I've looked at.   We have yet to see one fail on the new generator.   Now what's going on with all these meter's True has seen get damaged, hard to say.   Maybe they live in a very humid environment.  Maybe next to a large body of salt water.   Perhaps they are a Fluke fanboy and just don't like seeing these Brymen's hold up so well.  Hard to say.

The PM300 does not appear to be available off Amazon. Maybe it's not popular.  Dave does seem to stock them but doesn't seem to offer them on Amazon.   Maybe once the 121GW is stable  I will add one to the order. 
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline floobydust

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Re: Handheld meter electrical robustness testing.
« Reply #2872 on: October 17, 2018, 06:25:24 pm »
I found no evidence the Sanwa PM300 has 61010 certification. I thought the manual says "designed to" or some other ballyhoo.
 

Online rsjsouza

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Re: Handheld meter electrical robustness testing.
« Reply #2873 on: October 17, 2018, 06:34:15 pm »
I found no evidence the Sanwa PM300 has 61010 certification. I thought the manual says "designed to" or some other ballyhoo.
https://overseas.sanwa-meter.co.jp/items/detail.php?id=405#
https://www.sanwa-meter.co.jp/prg_data/goods/img/PH61491811587.pdf
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline floobydust

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Re: Handheld meter electrical robustness testing.
« Reply #2874 on: October 17, 2018, 06:59:09 pm »
Yup, you're getting fooled. You have to be hard-ass with manufacturers and safety claims.
"This instrument is a pocket-type digital multimeter with rms value response, designed for measurements within the range specifed as CAT.IV 300 V / CAT.III 600 V in IEC61010."
No file or certificate number, no agency approval logo. The approvals report Dave has is only for 61000 EMC. So I believe the muiltimeter is not certified.
 


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