Teardown of an Extech MM570A (=Brymen BM859) 5.5 Digit Multimeter

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Excellent built- and design-quality in this 4.5/5.5 digit multimeter with Brymen as the OEM.
You can skip to 16:45 for the most interesting parts on the main PCB.
Supplementary Videos:
HRC-Fuses: • What are HRC-fuses use...
Multimeter Input Protection: • EEVblog #373 - Multime...
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Опубликовано:

8 сен 2024

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Комментарии : 7

@henkvandeleur6872 6 лет назад

toch weer mooi voor elkaar gekregen

@zx8401ztv 6 лет назад

Nice multimeter :-D. It's likely that the variable trimmer capacitors in the metal box are a.c compensation capacitors, high frequency amplitude is lost in the precision resistor attenuator. Trimmer capacitors are mostly connected across the top resistor values.

@KainkaLabs 6 лет назад

You are probably right. I didn´t see that they are little capacitor trimmers instead of resistor trimmers.

@muharraqi55 6 лет назад

Hi boss can you make a video how to use oscilloscope rigol 1054 like ( voltage readings , x.y,spi, i2c ,etc..) i like the way when you explain it and i appreciate your effort

@kyoadam1593 6 лет назад

What about accuracy is it the same as brymen and other dmm u mentioned ? I hope there will be a video about that with a reference test keep up.

@frankh.1551 3 года назад

Hallo Roger , I would like to know the idle current , which the Multimeter draws from the 9 V Battery, when the rotary switch is in OFF Position. Could you measure that with another mulimeter?

@KainkaLabs 3 года назад

It could even be that the battery is physically disconnected in the "OFF"-position. What do you need the exact value of the standby-current for?