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Crap, then I skipped a great price for a 179, it was sold for $125 last night. Oh well, good reason to go on a 189.
I saw another 189 on eBay this morning, no original package (no probes, like-new condition, probably going for under $170, do you guys think its a good deal?
Thanks,
Peter
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Home Rig: Computer -> DIY PCM1794 DAC -> DIY Milllet -> HD 497 or DIY Passlabs A30 -> NHT Classic 3
Portable Rig: Apple iPod 5G 20G -> (Dock) -> Mini^3 -> Shure e3c
DIY in the queue: Beta22
HP purchase in queue: AKG k701, Senns HD 650, a closed woodie from Audio Technica if I have a chance to go to Hong Kong
Contributor Headphoneus Supremus: Top Mall-Fi poster. The "T" in META42. Member of the Trade
Originally Posted by peterpan188
Measurements should including...ohmic values in single digit
I'm not certain, but I think you can get accuracy better than 1 ohm on the Fluke 189. From my reading of the specs page, it looks like the worst case error on the lowest range is +/- 0.35 ohms.
This assumes you keep it calibrated, of course. Budget $50 per year for calibration services if maintaining this level of accuracy is important to you.
I know there is something called 4 wires resistance measurement
From what you wrote, I don't think you can afford 4 wire measurement. The cheapest name brand meter I'm aware of that will do that is a Keithley model 2000, which will run you over $1000 new.
You can find used 4-wire meters for less money, but they'll probably be less accurate than a Fluke 189, if they're in your price range.
How much difference do 179 and 189 work out in real life?
The 179 is a 6,000 count instrument, whereas the 189 is a 50,000 count instrument. All else being equal, that means that the 189 can give readings that are over 8x more accurate. All else probably isn't equal, but the main point remains.
If you're looking to save money, go with the 187 over the 189. I don't believe I've ever used the data logging feature of my 189, which I believe is the only thing it has over the 187.
189 is the best DMM fluke makes.
Ah, no. This is the best DMM Fluke makes. It'll run you about $9,500.
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"Give a man a fish and he eats for a day. Teach a man to fish and he knows what tackle to buy."
If you can afford it, a Fluke 189 is nearly a lifetime investment.... like my HP calculator.
ROFL... HP ???
My HP 39G+ calculator died inexplicably a month or two out of warranty. Serious firmware issues... it would turn on but I'd get a computer style "blue screen of death" amongst other issues.
I wasn't the only one either. Many people back in high school had issues with it.
A little OT but yeah... that was hardly a lifetime investment. More like a short term loss.
Contributor Headphoneus Supremus: Top Mall-Fi poster. The "T" in META42. Member of the Trade
Originally Posted by splaz
My HP 39G+ calculator died inexplicably a month or two out of warranty.
I'm certain that our resident metrologist was talking about pre-Carly HP. I have both an HP 48GX and a 49G+, and the "old" 48 is far and away a better built unit. I'm also a fan of the 20S as a programmer's calculator, which totally dominates its modern replacement, the 30S, from a durability standpoint.
EDIT: They shoulda given the calculator division to Agilent when they split that off. Agilent kept the HP ethic alive.
So using that to segue this thread back on topic... bigcat39, what do you think of Agilent's lower end DMMs? From my investigations of the entry level 4-wire DMMs, it looks like the 34410A is the best thing going right now. The Keithley Model 2000 is the only other unit that caught my attention, and it doesn't seem to be a big enough step up from a Fluke 189. Keithley's line seems to get too steep going up from there -- their higher-end models seem more oriented toward ATE applications. And Fluke doesn't even offer a reasonably priced 4-wire DMM.
Are there other options you'd consider in the 34410A's range?
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"Give a man a fish and he eats for a day. Teach a man to fish and he knows what tackle to buy."
True. I had heard good things about the old models and nobody I knew had trouble with them. Just pointing out that some of the new HP calculators have quality issues.