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| New EEVblog BM786 Multimeter |
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| EEVblog:
--- Quote from: bdunham7 on January 11, 2022, 01:28:02 am --- --- Quote from: EEVblog on January 11, 2022, 12:57:50 am ---And having such a thing selectable/adjustable might sound like a good solution, but then you have to check it before you start and decide what mode you want (often you won't know unless you start and get some results), and then you also risk forgetting to do that and thinking you are in a mode you aren't. --- End quote --- Having the threshold be precise and selectable is very handy, but I'm not feeling any urge to adjust the response time or test current. --- End quote --- I think the Keysight meter allows you to adjust the threshold. The 121GW also allows threshold adjustment. Never heard of a meter that allows response time adjust. |
| floobydust:
I have seen multimeters malfunction doing Ohms measurement on a DC rail with capacitance and semiconductors present. Starting at the lowest Ohms range, beep and charging happens until the multimeter upranges with the corresponding lower compliance current then causing the capacitor's voltage to start dropping. This can also be aggravated due to semi's becoming biased on and current drain increases as the voltage goes up. It's a non-linear load. Auto-ranging will oscillate between ranges hunting all the time. I believe the test current on the Brymen is quite low now at 0.3mA compared to 1-4mA on other multimeters. I just manual range to look for shorts. |
| Neutrion:
Reading all this makes me wonder how come, that non of the manufacturers tried to solve this so far. I think it would be possible, even if not trivial. The function could be called "True silence continuity function". Or ZEN buzzer. :) Edit: --- Quote from: floobydust on January 11, 2022, 02:25:07 am --- I just manual range to look for shorts. --- End quote --- How do you do that? |
| EEVblog:
I've split out the Low Ohms discussion to it's own thread: https://www.eevblog.com/forum/testgear/multimeters-with-low-ohms-function/ |
| RissViss:
Just wondering if you will be writing a manual for the BM786? I found a pdf manual that Brymen made, but it is a mixed manual for three different models. |
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