| Products > Test Equipment |
| AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter |
| << < (99/172) > >> |
| prof:
Just received mine. A very nice device. Although I'm using 2 rechargeable AAAs the diode tester has more Oomph than my Fluke. I only did a few quick tests, e.g. I tested the frequency tester quickly against my new frequency generator and it is spot on over the full frequency range it support (seems so be up to around 27MHz here). |
| Mark Hennessy:
--- Quote from: Fungus on August 30, 2017, 03:16:01 pm --- --- Quote from: Kalvin on August 30, 2017, 03:00:12 pm ---If you happen to have an excellent AN860B+ and an average AN8008, then the AN8008 may appear to be inferior. --- End quote --- That's why I asked what everybody else is seeing. (I noted in my original post that I'm aware that the meter is in spec) --- End quote --- My AN8008 and AN860B+ agree to within +/-1 count on DC volts, and those are within +/-2 counts of the Fluke 187 and BM235 that I've just checked them against. Just a quick test, but earlier, more exhaustive testing didn't raise any concerns. Quite the opposite... |
| Mark Hennessy:
--- Quote from: prof on August 30, 2017, 06:13:18 pm ---Although I'm using 2 rechargeable AAAs the diode tester has more Oomph than my Fluke. --- End quote --- The voltage for diode test is generated by a charge pump and regulator circuit, so is independent of the battery voltage. In a way, it's a shame they didn't make it fractionally higher - say, 3.3V - so people wouldn't assume they're seeing the battery voltage. On the other hand, the square wave output is a function of the battery voltage. |
| prof:
--- Quote from: Mark Hennessy on August 30, 2017, 06:27:12 pm --- --- Quote from: prof on August 30, 2017, 06:13:18 pm ---Although I'm using 2 rechargeable AAAs the diode tester has more Oomph than my Fluke. --- End quote --- The voltage for diode test is generated by a charge pump and regulator circuit, so is independent of the battery voltage. In a way, it's a shame they didn't make it fractionally higher - say, 3.3V - so people wouldn't assume they're seeing the battery voltage. --- End quote --- Doesn't matter how they do it. My point is it's better than the Fluke despite operating under worse conditions. ;) |
| Kalvin:
Quick test: My AN860B+ shows 1.553V, my two AN8008s show 1.555V and 1.554V. |
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