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| Best handheld dmm, at any price? |
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| hgjdwx:
--- Quote from: Synthtech on April 11, 2018, 10:15:38 am ---Interesting. I find that the capacitor autoranging in my DT4282 is much, much faster than my Keysight. --- End quote --- It is obviously slow than F187 and U1272A |
| Synthtech:
For autoranging and settling in the capacitance mode the Hioki leaves my U1282A for dead. The keysight is much slower. I wish the Hioki had a longer auto-shutdown time though. I would like to see a “lab mode” option on high end hand held meters where the meter would just stay on until it is manually turned off by the user. |
| VEGETA:
--- Quote ---None, basically. Between ANENGS and $100 there's no real advantage. --- End quote --- Really? Dave made 50$ and 100$ shootouts so I thought it would be some real differences. Ok, so what are the real advantages beyond that? --- Quote ---No DMM is going to measure capacitors accurately. You need an LCR meter for that. --- End quote --- I wish to understand this. Why would it be like this? not even the high quality meters? So why they put such a feature if it is not accurate (not reliable)? --- Quote ---Because it just works. And keeps on working. --- End quote --- Isn't this what nearly all meters are? I asked because I really see using Fluke 87 being used like this, so it is not a coincidence. There must be a true reason for it and I wish to know it. |
| hgjdwx:
The DT4282 can accurately measure the DC component of AC and DC mixed signals (such as the DC voltage of the MOS's D pole in the switching power supply), which is very accurate! Most true-rms multimeters do not do this well. It also accurately measures the tiny DC components in the AC signal. |
| Fungus:
--- Quote from: VEGETA on April 11, 2018, 12:35:04 pm --- --- Quote ---None, basically. Between ANENGS and $100 there's no real advantage. --- End quote --- Really? Dave made 50$ and 100$ shootouts so I thought it would be some real differences. --- End quote --- That was long ago, before those ANENGs appeared. --- Quote from: VEGETA on April 11, 2018, 12:35:04 pm --- --- Quote ---No DMM is going to measure capacitors accurately. You need an LCR meter for that. --- End quote --- I wish to understand this. --- End quote --- Homework: Find out what an LCR meter does. --- Quote from: VEGETA on April 11, 2018, 12:35:04 pm --- --- Quote ---Because it just works. And keeps on working. --- End quote --- Isn't this what nearly all meters are? --- End quote --- Sure, with light use on a nice clean table and never exposed to any dangerous voltages. There's a whole thread on "robustness" here, with a lot of useful information: https://www.eevblog.com/forum/testgear/hear-kitty-kitty-kitty-nope-not-that-kind-of-cat/ People buy F87s because they do enough, they do nothing badly and they last a long time. F87s are a bit overpriced but if you use your meter a lot or it's used for paid work then maybe that doesn't matter. They should last 20 years or more so you can do the math on how much they cost per year, decide if it's worth it. Me? I'll probably never own one*. They're expensive and I simply don't need an industrial meter. (*) Not unless somebody else pays for it. |
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