Products > Test Equipment
Brymen BM789
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Constantin:
I have  Brymen BM 789, firmware 09 and It has no problems with the 650 Ohm and 6.5 kOhm measurement.
Antrus:
Try measuring the variable resistor. In the range of 650-660 ohms in automatic mode, he goes crazy.
joeqsmith:

--- Quote from: Antrus on August 07, 2022, 09:13:34 am ---I have firmware 8. The person on YouTube has firmware 10. Of course, I haven't updated anything. The multimeter is almost 2 years old, but the manufacturer has not yet noticed such an obvious error in the firmware. Perhaps this resistance range is not needed by anyone.

--- End quote ---
Did you bring it to their attention, or assume that posting to the EEVBLOG forum was the correct way to handle it? 
***
If you did write them, what was their response?  They have been very responsive when I have ask them questions in the past.
Constantin:
Yes, I was able to find magical resistance, about 653 Ohms in my case :-)
NoMoreMagicSmoke:

--- Quote from: Antrus on August 07, 2022, 03:50:54 pm ---Try measuring the variable resistor. In the range of 650-660 ohms in automatic mode, he goes crazy.

--- End quote ---

I wonder if this is an issue with just some meters? I just tried with a potentiometer and s sweep from 600-700 6.0k - 7.0k could not cause the meter to freak out. My meter is 08 and it ranges up at 66000 counts and down at 61000 counts.

I did only have a 1 turn pot available though so it's possible it's a very narrow range and I didn't have the resolution on the potentiometer to hit the sweet spot.
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