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Two €200 meters: Brymen vs. UNI-T

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Fungus:

--- Quote from: sonpul on March 28, 2023, 06:09:38 pm ---It is very difficult for me to imagine any truly useful task for data logging.

--- End quote ---

Doesn't mean nobody else has a use for it. You might need to leave something running all night and record the voltage (eg. to make a battery  discharge graph).


shapirus:

--- Quote from: Fungus on March 28, 2023, 06:52:22 pm ---Doesn't mean nobody else has a use for it. You might need to leave something running all night and record the voltage (eg. to make a battery  discharge graph).

--- End quote ---
As well as current, temperature, frequency, basically anything that can be measured. There can be a use case for everything.

robdejonge:

--- Quote from: Fungus on March 28, 2023, 06:52:22 pm ---
--- Quote from: sonpul on March 28, 2023, 06:09:38 pm ---It is very difficult for me to imagine any truly useful task for data logging.

--- End quote ---

Doesn't mean nobody else has a use for it. You might need to leave something running all night and record the voltage (eg. to make a battery  discharge graph).

--- End quote ---
Exactly what I've done before, for logging I used an old smartphone with interval photos. Tedious.

robdejonge:
After reading some posts comparing the newer 780 series meters by Brymen, I went and did a bit of a datasheet comparison this morning to see if anything else would jump out. BeepLit, longer backlight and batteries used are differentiating features I like about the 780 series. Data logging one I like about the 870 series, plus (and this is perhaps silly, as it's not for the dual reading) visually I prefer the display on the 870. Overall, as mentioned, spec comparison is a mixed bag in that some is better here, other is better there. Both meet my needs.

At this moment, I'm learning towards the 860 series.

What I can't judge from spec sheets is how the meters compare in daily driving. Were the little issues listed by @shapirus below addressed in the new series? Is the 780 series overall just a much faster meter?

J-R:
Absent of a specific feature you need that might be lacking, in general my vote is the BM869s due to the relatively extensive dual display functionality.  The various AC/DC/frequency dual display modes and dual temperature are perhaps expected, but I was kind of surprised to see AC current with frequency (secondary), AC+DC current with AC current (secondary), and DC current with AC current (secondary).  Of course the BM789 can display those values, just not at the same time.

I don't think the BM789 is "faster", and matter of fact, when switching functions on the BM789 it is very slow to switch, a full second or so.

Having to remove the case on the BM869s to change the battery is a pain, and the stand is attached to it so you can't just leave it off.  The battery cover screws are tiny, as are the ones on the BM789!  If you plan to use these 8 hours a day, bench meter for the win...

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