Products > Test Equipment
UNI-T UT61E Multimeter teardown photos.
Monkeh:
--- Quote from: form on October 08, 2013, 05:58:34 pm ---Has anybody seen software-bugs on that DMM, too?
--- End quote ---
It has no software.
--- Quote ---Sometimes the autoranging fails and instead of changing the range, the displayed value is just wrong.
Very dangerous...
--- End quote ---
I have yet to have this occur.
mariush:
--- Quote from: Monkeh on October 08, 2013, 06:03:21 pm ---
--- Quote from: form on October 08, 2013, 05:58:34 pm ---Has anybody seen software-bugs on that DMM, too?
--- End quote ---
It has no software.
--- Quote ---Sometimes the autoranging fails and instead of changing the range, the displayed value is just wrong.
Very dangerous...
--- End quote ---
I have yet to have this occur.
--- End quote ---
The update rate is 2 times per second on the UT61E.
When changing ranges, it happens that one update is messed up (sometimes it just moves the dot instead of dropping a decimal, for example when going from 22.124v to 25.12v, you get 251.24 or something like that). But this is basically shown for half a second (one update) with the next update half a second later, the correct value is shown.
Once you get used to it, it's not dangerous at all and these erroneous values can be easily scrubbed out of log file, if you do data logging.
Monkeh:
--- Quote from: mariush on October 08, 2013, 09:41:08 pm ---
--- Quote from: Monkeh on October 08, 2013, 06:03:21 pm ---
--- Quote from: form on October 08, 2013, 05:58:34 pm ---Has anybody seen software-bugs on that DMM, too?
--- End quote ---
It has no software.
--- Quote ---Sometimes the autoranging fails and instead of changing the range, the displayed value is just wrong.
Very dangerous...
--- End quote ---
I have yet to have this occur.
--- End quote ---
The update rate is 2 times per second on the UT61E.
When changing ranges, it happens that one update is messed up (sometimes it just moves the dot instead of dropping a decimal, for example when going from 22.124v to 25.12v, you get 251.24 or something like that). But this is basically shown for half a second (one update) with the next update half a second later, the correct value is shown.
Once you get used to it, it's not dangerous at all and these erroneous values can be easily scrubbed out of log file, if you do data logging.
--- End quote ---
I'm well aware of that particular issue, that is not what he described.
safetyfirst:
See page 41 of the Uni-T Series 61x Operating Manual. The 61E does NOT have a Backlight or a Sleep mode / Auto Power Off (APO). I cannot post the entire manual as the pdf is almost 5MB.
Lightages:
The UT61E is a nice meter for the price, but don't expect too much out of it. For a 22,000 count meter with many good features it is a good buy. Keep it on the bench and don't even show anything high energy or high voltage. If you want something safer, then you have to do with lower specs or higher price to keep the same specs.
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