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EEVblog 121GW Multimeter Issues

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jancumps:

--- Quote from: J-R on May 28, 2021, 12:26:17 am ---
--- Quote from: jancumps on May 27, 2021, 01:07:48 pm ---I've tried to make a bit more targeted photos of my meter (SN 180701835 that is behaving well).

I can see some damage on that PTC and the shrink around it.

(the DMM case side is not damaged. What looks like damage is shadow of the component)

--- End quote ---

Not sure if you're asking for info or just pointing this out, but of course future readers should push the metal shield tight against the side of the bottom case before re-assembly to avoid damaging the PTC.

--- End quote ---
I wasn't asking. Just showing how the PTC area and shield looks like in my meter. It may help in the analysis.

BrianG61UK:

--- Quote from: EEVblog on January 25, 2021, 01:54:24 am ---NOTE: I moved the battery mod discussion to it's own thread:
https://www.eevblog.com/forum/testgear/121gw-multimeter-battery-mod/

--- End quote ---
Seems to me that you only moved the end of the discussion.
Could you move (or copy?) the first part too?
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3402138/#msg3402138
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3405064/#msg3405064
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3405178/#msg3405178
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3405606/#msg3405606
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3405824/#msg3405824
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3406222/#msg3406222
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3406354/#msg3406354
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3411872/#msg3411872
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3412058/#msg3412058
https://www.eevblog.com/forum/testgear/eevblog-121gw-multimeter-issues/msg3412070/#msg3412070

Archon:
Hi, new user here. Is this the right place to ask if the above issue was related to manufacturing during the kickstarter? Did it result in a fix of some sort? If I were to order a 121GW right now, can I have confidence it won't have such an issue?

HKJ:

--- Quote from: Archon on June 04, 2021, 06:23:38 pm ---Hi, new user here. Is this the right place to ask if the above issue was related to manufacturing during the kickstarter? Did it result in a fix of some sort? If I were to order a 121GW right now, can I have confidence it won't have such an issue?

--- End quote ---

As far as I know the only real issue was with the rotary switch and it was fixed in a couple of months.
Over time there have been some software issues, but nothing you could not get around by using manual range and because the 121GW allows software updates it has been possible to fix these issues on all meters sold.

Note: I do not rate the 121GW as the best DMM ever, but it is a very good meter and like any meter it is not perfect. I do have about all high end meters on the market and I would not rate any of them a clear winner.

EEVblog:

--- Quote from: Archon on June 04, 2021, 06:23:38 pm ---Hi, new user here. Is this the right place to ask if the above issue was related to manufacturing during the kickstarter? Did it result in a fix of some sort? If I were to order a 121GW right now, can I have confidence it won't have such an issue?

--- End quote ---

The PCB shim issues was limited to the first few thousands PCB's. That included all the Kickstarter units and a bunch of the first normal production units. All future PCB's have been the correct thickness and the issue was resolved. All units bought today do not have this issue, no one has old stock.

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