Author Topic: New EEVBlog-Branded Multimeter Coming?  (Read 113450 times)

0 Members and 1 Guest are viewing this topic.

Offline Fungus

  • Super Contributor
  • ***
  • Posts: 10488
  • Country: 00
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #325 on: January 09, 2018, 01:25:53 pm »
Dave
   What brand and type of fuse is in it, that enables it to handle readings in the 121GW range? You’ll be supplying extra fuses for it? Leads/probes?

It'a almost as if you're intending to buy one of these without watching the informational videos that Dave is uploading.

 

Online BU508A

  • Super Contributor
  • ***
  • Posts: 1381
  • Country: de
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #326 on: January 09, 2018, 02:19:08 pm »
Shorter answer: No, you can't have one yet. Go to the back of the queue and wait.  :popcorn:

I am backer #892.
Perhaps I want another one.
“Chaos is found in greatest abundance wherever order is being sought. It always defeats order, because it is better organized.”            - Terry Pratchett -
 

Offline GameProgrammer79

  • Contributor
  • Posts: 31
  • Country: ae
    • IoT Daemon
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #327 on: January 09, 2018, 05:47:24 pm »
I am willing to buy if some one is done after review  :-DD.. it is a toy for electronics adults who play and play and rotate and rotate then give up after doing all voltage and current tests on youtube ;D :-DD
Folks I am getting back in Electronics game after 18 odd years :)
 

Offline GameProgrammer79

  • Contributor
  • Posts: 31
  • Country: ae
    • IoT Daemon
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #328 on: January 09, 2018, 06:05:09 pm »
 >:D Shocking   >:D Some fraud created a Indigogo campaign copying Daves credentials for 121GW and he is selling for a $50 discount ..  :palm:
Folks I am getting back in Electronics game after 18 odd years :)
 

Online rsjsouza

  • Super Contributor
  • ***
  • Posts: 3690
  • Country: us
  • Eternally curious
    • Vbe - vídeo blog eletrônico
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #329 on: January 09, 2018, 07:45:40 pm »
Wow, $1k already. Not bad for the scammers if it went unnoticed.
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 Rbastler

  • Frequent Contributor
  • **
  • Posts: 286
  • Country: it
  • Wörk Wörk
    • Rbastlers Blog
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #330 on: January 09, 2018, 07:52:32 pm »
http://rbastlerblog.jimdo.com/
Gamma spectrometer works. Now some yellow crystals need regenerating and testing.
 

Offline dcac

  • Regular Contributor
  • *
  • Posts: 178
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #331 on: January 09, 2018, 08:07:22 pm »
I’m a bit concerned/surprised with the initial reports that auto-ranging seems slow on the 121GW. I seem to remember Dave often pointed out if a DMM seemed slow in his reviews, and also the Brymen meters seems quite fast both in update-rate and auto-ranging so I was hoping the 121GW would at least have similar speed as the Brymen.

I’m backer 924 btw, so I’ve yet to test anything myself. And my initial impression was that the 121GW did not really seem slow when Dave used one of the prototypes in his videos.
 

Offline Fungus

  • Super Contributor
  • ***
  • Posts: 10488
  • Country: 00
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #332 on: January 09, 2018, 08:11:54 pm »
I’m a bit concerned/surprised with the initial reports that auto-ranging seems slow on the 121GW. I seem to remember Dave often pointed out if a DMM seemed slow in his reviews

Just because he's a qualified multimeter critic doesn't mean his own meter has to be perfect. Maybe he's just trying to sell a decent meter and make some money while he's at it.

(He'd have to charge a lot more for the mythical 100% perfect meter.  :popcorn: )

« Last Edit: January 09, 2018, 08:14:57 pm by Fungus »
 

Offline dcac

  • Regular Contributor
  • *
  • Posts: 178
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #333 on: January 09, 2018, 08:22:19 pm »
I’m a bit concerned/surprised with the initial reports that auto-ranging seems slow on the 121GW. I seem to remember Dave often pointed out if a DMM seemed slow in his reviews

Just because he's a qualified multimeter critic doesn't mean his own meter has to be perfect. Maybe he's just trying to sell a decent meter and make some money while he's at it.

(He'd have to charge a lot more for the mythical 100% perfect meter.  :popcorn: )

should I take your statement as a confirmation that the 121GW is indeed slow?

and btw, did I ask for a mythical 100% perfect meter(?)

 

Online IanB

  • Super Contributor
  • ***
  • Posts: 9632
  • Country: us
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #334 on: January 09, 2018, 08:25:39 pm »
should I take your statement as a confirmation that the 121GW is indeed slow?

It didn't seem slow when I watched someone test it.
I'm not an EE--what am I doing here?
 

Offline Fungus

  • Super Contributor
  • ***
  • Posts: 10488
  • Country: 00
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #335 on: January 09, 2018, 08:32:46 pm »
should I take your statement as a confirmation that the 121GW is indeed slow?

I wouldn't know.

I'm just saying that because Dave has criticized speed in his reviews doesn't necessarily mean his own meter has to be faster than every other meter ever.
 

Offline dcac

  • Regular Contributor
  • *
  • Posts: 178
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #336 on: January 09, 2018, 08:36:33 pm »
should I take your statement as a confirmation that the 121GW is indeed slow?

It didn't seem slow when I watched someone test it.

I guess everything is relative but here it seemed slower than I was expecting from a meter with 5 updates/sec.



 

Online rsjsouza

  • Super Contributor
  • ***
  • Posts: 3690
  • Country: us
  • Eternally curious
    • Vbe - vídeo blog eletrônico
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #337 on: January 09, 2018, 09:00:08 pm »
I’m a bit concerned/surprised with the initial reports that auto-ranging seems slow on the 121GW. I seem to remember Dave often pointed out if a DMM seemed slow in his reviews, and also the Brymen meters seems quite fast both in update-rate and auto-ranging so I was hoping the 121GW would at least have similar speed as the Brymen.

I’m backer 924 btw, so I’ve yet to test anything myself. And my initial impression was that the 121GW did not really seem slow when Dave used one of the prototypes in his videos.
I don't know about the 121GW, but I don't recall seeing anything faster than the Brymen meters I have used (I currently have a BM857) and the Fluke 179 I had.

Keysight U1233A/U1273A are quite fast as well, in contrast to their new flagship model U1282A.

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 dcac

  • Regular Contributor
  • *
  • Posts: 178
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #338 on: January 09, 2018, 11:08:02 pm »
I’m a bit concerned/surprised with the initial reports that auto-ranging seems slow on the 121GW. I seem to remember Dave often pointed out if a DMM seemed slow in his reviews, and also the Brymen meters seems quite fast both in update-rate and auto-ranging so I was hoping the 121GW would at least have similar speed as the Brymen.

I’m backer 924 btw, so I’ve yet to test anything myself. And my initial impression was that the 121GW did not really seem slow when Dave used one of the prototypes in his videos.
I don't know about the 121GW, but I don't recall seeing anything faster than the Brymen meters I have used (I currently have a BM857) and the Fluke 179 I had.

Keysight U1233A/U1273A are quite fast as well, in contrast to their new flagship model U1282A.

Thanks for your input, yeah I agree the Brymen are fast. And the 121GW also goes all the way down to milli-ohms resolution so taking a bit longer would be understandable, still -  auto-ranging from open circuit to short seems about 5-6 sec, ouch!

I’m surely hoping that a fastmode with lesser resolution can/will be implemented, that i.e. puts the meter in a 5000 count mode. If it isn’t a FW bug that’s slowing the meter down.

 
The following users thanked this post: rsjsouza

Offline fanOfeeDIY

  • Supporter
  • ****
  • Posts: 331
  • Country: jp
    • YouTube Channel
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #339 on: January 10, 2018, 12:02:45 am »
Just uploaded another video of the 131GW Multimeter. This time it is joke video for fun :)

EEVBlog Meter Joke Review
https://youtu.be/zlYwwf2PTvg
 
The following users thanked this post: rsjsouza, ez24

Offline GameProgrammer79

  • Contributor
  • Posts: 31
  • Country: ae
    • IoT Daemon
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #340 on: January 10, 2018, 12:20:41 am »
cant use 121GW to eat .. such a shame.. imagine forgetting to bring chopsticks to office ..  :-DMM
Folks I am getting back in Electronics game after 18 odd years :)
 
The following users thanked this post: fanOfeeDIY

Offline joeqsmith

  • Super Contributor
  • ***
  • Posts: 6211
  • Country: us
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #341 on: January 10, 2018, 01:53:37 am »
should I take your statement as a confirmation that the 121GW is indeed slow?
It didn't seem slow when I watched someone test it.
I guess everything is relative but here it seemed slower than I was expecting from a meter with 5 updates/sec.

I had wondered if it could not run in a low res mode then switch to high res to get it to lock in faster.  The 121GW uses the same front end chipset used in another meter that Dave had reviewed and I though the settling time was discussed back then.   I would guess some of the people who bought one have more than one meter.  Maybe others will do a side by side comparison to give you a better idea how it compares.       
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline Fungus

  • Super Contributor
  • ***
  • Posts: 10488
  • Country: 00
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #342 on: January 10, 2018, 02:08:59 am »
I had wondered if it could not run in a low res mode then switch to high res to get it to lock in faster.

Even better: Do a binary chop instead of a linear search (ie. start in the middle)  :popcorn:

 
The following users thanked this post: exe

Offline joeqsmith

  • Super Contributor
  • ***
  • Posts: 6211
  • Country: us
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #343 on: January 10, 2018, 03:08:04 am »
SAR?
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline markb82

  • Regular Contributor
  • *
  • Posts: 61
  • Country: ca
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #344 on: January 10, 2018, 03:11:15 am »
I looked at the chipset and I think you could do a lower count fast sampling mode which could help with auto-ranging.  Even if it doesn't, it would be nice to have a faster sampling mode.
 

Offline joeqsmith

  • Super Contributor
  • ***
  • Posts: 6211
  • Country: us
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #345 on: January 10, 2018, 03:23:03 am »
Looks like the UNI-T UT171B also uses that front end along with the HPAK U1282A.   These would be good comparisons.   
How electrically robust is your meter?? https://www.youtube.com/channel/UCsK99WXk9VhcghnAauTBsbg
 

Offline markb82

  • Regular Contributor
  • *
  • Posts: 61
  • Country: ca
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #346 on: January 10, 2018, 05:36:01 am »
AD1 of the HY3131 chip has a max sample rate of 640 sps (using 4.915Mhz crystal and the lowest prescalar of 256).  :popcorn:
 

Online exe

  • Supporter
  • ****
  • Posts: 1474
  • Country: nl
  • self-educated hobbyist
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #347 on: January 10, 2018, 09:15:52 am »
Even better: Do a binary chop instead of a linear search (ie. start in the middle)  :popcorn:

Yeah, this also surprised me why using linear search? :(. With 50k counts just one measurement at mid-range it is enough to fully determine the required range, imho. So, no need for search most of the time.

I was also thinking about a dedicated comparator that would just "know" which range is needed. But it might be possible to just activate a high sample rate at an overload event (if available, the manual says max sample rate is 5 samples/s, but there might be a higher rate at reduced resolution).

I'd also try to align numbers to the left so when it down-ranges it would just display extra digits of resolution at right.
 

Offline mikeselectricstuff

  • Super Contributor
  • ***
  • Posts: 12104
  • Country: gb
    • Mike's Electric Stuff
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #348 on: January 10, 2018, 11:38:01 am »
Looking at the video, that autorange time on ohms is totally unacceptable.
Fluke 87 takes a second.
Any more than this is simply broken.
Youtube channel:Taking wierd stuff apart. Very apart.
Mike's Electric Stuff: High voltage, vintage electronics etc.
Day Job: Mostly LEDs
 

Offline mikeselectricstuff

  • Super Contributor
  • ***
  • Posts: 12104
  • Country: gb
    • Mike's Electric Stuff
Re: New EEVBlog-Branded Multimeter Coming?
« Reply #349 on: January 10, 2018, 11:59:56 am »
should I take your statement as a confirmation that the 121GW is indeed slow?
It didn't seem slow when I watched someone test it.
I guess everything is relative but here it seemed slower than I was expecting from a meter with 5 updates/sec.

I had wondered if it could not run in a low res mode then switch to high res to get it to lock in faster.  The 121GW uses the same front end chipset used in another meter that Dave had reviewed and I though the settling time was discussed back then.   I would guess some of the people who bought one have more than one meter.  Maybe others will do a side by side comparison to give you a better idea how it compares.       
Presumably it's already doing fast sampling for the bargraph display - it should be using this for ranging.
Does kinda bring up questions of firmware quality if it's doing such basic things so obviously wrong..
Youtube channel:Taking wierd stuff apart. Very apart.
Mike's Electric Stuff: High voltage, vintage electronics etc.
Day Job: Mostly LEDs
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf