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| Best handheld dmm, at any price? |
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| MosherIV:
Hi I already have my dream dmm........Fluke 187 :D Sadly, you can no longer get them :'( |
| janoc:
--- Quote from: Fungus on March 31, 2018, 01:33:12 pm ---OK, I have a doubt. I was just looking at the datasheet and the diode test voltage of the BM869S is listed as 2V. Can it light up a white LED? --- End quote --- My 867 certainly can, even with old batteries - just tested it. Measured the test voltage and it was more like a 2.98V and not 2V. Unless they changed the circuitry for this in 869, I would say it can do it too (the meters are almost identical). |
| janoc:
--- Quote from: IanB on March 31, 2018, 01:42:41 pm --- --- Quote from: Fungus on March 31, 2018, 01:33:12 pm ---Can it light up a white LED? --- End quote --- Diode test is a weak point of the 869s. It has a low test voltage and it doesn't beep on short circuit. --- End quote --- That's not true, at least on my 867 (almost identical meter, just doesn't measure temperature). It has 3V diode test voltage and it does beep on shorts (and the beeper is pretty fast at that) - you just need to select the continuity, not diode mode (don't know many meters beeping in diode mode). |
| Fungus:
--- Quote from: janoc on March 31, 2018, 04:37:58 pm ---My 867 certainly can, even with old batteries - just tested it. Measured the test voltage and it was more like a 2.98V and not 2V. Unless they changed the circuitry for this in 869, I would say it can do it too (the meters are almost identical). --- End quote --- Brymen lists the 867 test voltage as 2.0V, just like the 869. I guess I'd be safe buying one then (assuming I ever feel the need to buy a high-end meter). |
| IanB:
--- Quote from: janoc on March 31, 2018, 04:41:06 pm --- --- Quote from: IanB on March 31, 2018, 01:42:41 pm ---That's not true, at least on my 867 (almost identical meter, just doesn't measure temperature). It has 3V diode test voltage and it does beep on shorts (and the beeper is pretty fast at that) - you just need to select the continuity, not diode mode (don't know many meters beeping in diode mode). --- End quote --- --- End quote --- From memory my 869s does not report the forward voltage for any LED over 2 V. It may light the LED, but the display shows OL. I think the idea of beeping in diode mode is that you can probe around a circuit board looking at forward junctions in transistors etc. and the meter will beep if any junction is a short circuit instead of a diode. The beep is handy to save having to switch your eyes back and forth between the probes and the meter display. Some people really like that feature, although I have not had cause to use it myself. |
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