General > General Technical Chat
What's the point of hold or auto-hold in DMMs? Ever seen a properly working one?
bdunham7:
--- Quote from: RoGeorge on April 21, 2023, 04:05:23 pm ---Could be, as well, that I have a defective mtx3283, while other mtx3283 are working just as expected. :-//
--- End quote ---
It doesn't sound like the sort of thing that would go wrong, but it might sound like the sort of thing that would be addressed with an update and nothing mentioned if it was not feasible to apply the update to existing units. So if other (newer?) ones do work correctly, that's why.
RoGeorge:
Seems it's dumb by the factory, and not something fixable. Mine has firmware v1.17, the one in this video has firmware v2.03 and still has the Auto-Hold the dumb way, see at minute 38:40
https://youtu.be/BtlWO8TIkO8?t=2320
thm_w:
What a joke, and regular hold is useless too unless you have three hands. Making the entire button never used by 99% of people.
Wasn't there some patent? They trademarked the name but not sure if the behavior was patented, can't seem to find it.
https://patents.google.com/patent/US20090140721A1/en
https://patents.google.com/patent/GB2194348A/en
tautech:
Just basic functionality that should work as intended and standard requirement for any decent bench DMM.
AVGresponding:
--- Quote from: RoGeorge on April 21, 2023, 05:25:33 pm ---Seems it's dumb by the factory, and not something fixable. Mine has firmware v1.17, the one in this video has firmware v2.03 and still has the Auto-Hold the dumb way, see at minute 38:40
--- End quote ---
That's very disappointing, a clear step backwards from earlier designs. Is there anyone here with knowledge of how responsive C-A are to technical enquiries? This would seem to be a faulty implementation requiring a FW update.
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