Products > Test Equipment
EEVBlog 121GW Multimeter Firmware Details
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1anX:

--- Quote from: EEVblog on December 08, 2018, 03:07:12 am ---For those interested, we (Kane & EEVblog) are now setting up a shared git (not public) for firmware version control with the intention that we (EEVblog) now have full visibility on all firmware changes, and in time will be able to make our own changes and compile ourselves etc.
At present we have almost no real visibility into their internal firmware environment.

--- End quote ---

Thats great news Dave!

This meter carries your name and brand, (EEVBlog) so its good that you are in the loop with the development of the firmware. It seems to me that with responsible management this meter could develop to its true potential.

The hardware too requires your input and direction toward meeting quality and performance requirements. If UEI want to carry on with 700 out of spec PCBs requiring shims then maybe they should put their brand on it. IMHO get quality into the meters that carry your branding and be prepared for a lot more sales.
EEVblog:

--- Quote from: 1anX on December 08, 2018, 03:31:43 am ---The hardware too requires your input and direction toward meeting quality and performance requirements. If UEI want to carry on with 700 out of spec PCBs requiring shims then maybe they should put their brand on it. IMHO get quality into the meters that carry your branding and be prepared for a lot more sales.

--- End quote ---

I've heard you a dozen times now, no need to continue to repeat it.
1anX:

--- Quote from: EEVblog on December 08, 2018, 03:36:05 am ---
--- Quote from: 1anX on December 08, 2018, 03:31:43 am ---The hardware too requires your input and direction toward meeting quality and performance requirements. If UEI want to carry on with 700 out of spec PCBs requiring shims then maybe they should put their brand on it. IMHO get quality into the meters that carry your branding and be prepared for a lot more sales.

--- End quote ---

I've heard you a dozen times now, no need to continue to repeat it.

--- End quote ---

Its called customer feedback Dave!

I've never seen you shy away from voicing your opinions on products. I was suggesting something a little different in my last post and that was to separate the out of spec PCBs from the meters carrying your brand.

You have said before that UEI are engineering the meter that incorporates some of your design ideas, (good ideas) all I'm suggesting is that if you have some control in the manufacture then opt for quality. Sure they are built to a cost of around $300, but hell, how much does the PCB cost as a percentage of the bill?

I'm participating in the forum and if you dont like my suggestions thats fine, but I dont think I'm repeating myself as much as many others do around here.
Brumby:
Dave's heard you, I've heard you and I'm sure there are a bucketload of other members who have heard you - so give it a rest, please!

As for the PCB's - what is the problem?  The fact that they aren't picture perfectly identical to the original?

If I could be so bold (as a person who does not own a 121GW - but has read all these threads) - from what I've read to date - IT DOESN'T MATTER!

There is a mechanical requirement in the range switch and PCB which is accomplished by one of two configurations:
 1. Thicker PCB and no shim
or
 2. Thinner PCB with a shim
Either appear to be as good as the other

Brumby:

--- Quote from: 1anX on December 08, 2018, 04:29:39 am ---... how much does the PCB cost as a percentage of the bill?

--- End quote ---

A crapload more than a shim, that's for sure.

BUT that isn't the sole reason.

Many meters were sent out with the thinner PCB and the shim solution dealt with the problem with a user serviceable field change.  The alternative would be a complete recall - as I don't think Dave or UEI would be sending out replacement PCBs - populated, tested and calibrated!

Sending out the shim with instructions as to how to fit it was simple, inexpensive and only inconvenienced the user for the length of time it took to fit the shim.

The shim solution was found to be good enough to be used in the construction of new units out of the factory - so the engineering has been proven.


Your pedanticism is inappropriate here.  The shim solution works well.  Please .... move on.


Edit:
Dave:  If I've overstepped the mark or got something wrong, please feel free to castigate and correct me!
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