Products > Test Equipment
Brymen meters "beep" on diode check?
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CDaniel:
Diode mode beep for shorted semiconductors is a "must have" if you work with a meter , you can't watch and wait the screen to settle all the time .
Many many cheap meters ( and expensive ) begining from a long time ago have the function .
That extra short beep from some Fluke models when the diode is good I don't consider particulary usefull , I allways think that something isn't right and could be a shorted component  :D . Maybe I'm too used not to have this feature
xavier60:
I find the short beeps useful for quickly identifying the polarity of PN junctions.
james_s:
The short beep on a good junction is extremely useful, it's the sole reason I recently bought a 87V to replace my 87III. It's a huge time saver when troubleshooting or reverse engineering anything that has diodes and transistors. Use it for any period of time and you'll wonder how you ever got by without it.
xavier60:
I sent Brymen an email to let them know that a model without diode test beeps will not be my primary multimeter.
In case they did not already know this.
xavier60:
I received a reply from Brymen. There will be a new multimeter series that will have diode test beeps and back light flashing, if I have understood properly.
I hope that access to diode test will not be buried too deeply, I prefer it to be a primary selection.
I did some tests on my BM857S's diode test. It appears to be a resistor dropper from a 3V source.
The voltage source should have been made higher. The short circuit current is about 400µA and drops to 70µA at the 2.4V across a white power LED.
The display shows "OL"  over 2V. Why?
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