Products > Test Equipment
AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
mnementh:
--- Quote from: prof on August 30, 2017, 11:18:09 pm ---
--- Quote from: Mark Hennessy on August 30, 2017, 07:32:53 pm ---
--- Quote from: prof on August 30, 2017, 06:33:52 pm ---Doesn't matter how they do it. My point is it's better than the Fluke despite operating under worse conditions. ;)
--- End quote ---
Surely it's interesting to know what's happening?
--- End quote ---
Thanks for free education, I guess. But it's not like I haven't implemented my own LED testers before. ;) There was also a LED tester as a Boldport project a short while ago: https://www.boldport.com/products/ligemdio/
--- Quote ---Anyway, my point is that there is a misconception that the diode test voltage is equal to the battery voltage.
--- End quote ---
I never claimed that. I only said it works better than my Fluke (17B+) despite running on a lower input voltage.
Just FYI, I just measured the current (using a third DMM of course), the Fluke allows 0.165mA while the Aneng will supply 0.765mA; the Aneng also shows a higher Forward voltage of 1.95V which should be closer to reality than the Fluke which reads 1.83V but I'm too lazy to really measure that LED right now.
Anyway, I can't (easily) change the internal implementation so I have to accept it as it is.
So far I found the Aneng to be a remarkable device for what it is. I've also tested the speed of the continuity tester now and it is a lot quicker than the Fluke (using the same Brymen probes) as well; with this little device I can swipe swiftly over pads on the board without missing the connection(s) where the Fluke needs a much slower motion. It would be great if it would unlatch a bit quicker though...
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Actually... I'd been thinking about this very thing myself; and I came to the contusion that it was worth taking a $13 gamble to see if my AN8002 could be powered by a small LiPo. I even bought a few of these: http://www.ebay.com/itm/322600343728 to make it a complete solution with LVP and convenient charging in one board; just cut the divider out of the battery box and hack it all in there. Now I'll probably do it as a pretest against using the same circuit in my AN8008.
That said... after keeping the AN8002 in my little bag of dirty tricks for a while, I think the funky shape and "bar of soap" thing is a for real issue... but something best resolved with some 3D Printing abuse and a decent set of modular leads. Maybe an oversized jacket printed out of TPU with a cord-wrap and nacelles for the probes and an oversized flip-out stand... or even just cut the pretense and make it a big wedge so when you knock it off the bench it bounces... :P
Cheers,
mnem
*toddles off to ded*
Gandalf_Sr:
--- Quote from: Fungus on August 30, 2017, 01:46:09 pm ---How accurate are everybody's AN8008s?
Mine seems to be about 4 or 5 counts high on most readings. Within spec, but not impressive.
Even my AN860B+ is much better than that.
eg. For 5V DC: AN8008 reads 5.004V, AN860B+ reads 5.000V
For 1kOhms: AN8008 reads 1003 \$\Omega\$, AN860B+ reads 1001 \$\Omega\$
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You can calibrate the AN8008 like I did using this process. I don't know if I caused my inaccuracies as I 'fixed' the poor soldering around the fuse holders as soon as I got mine and that almost certainly changed the current readings, probably less so the voltage readings.
Fungus:
--- Quote from: Gandalf_Sr on September 01, 2017, 08:54:17 am ---I don't know if I caused my inaccuracies as I 'fixed' the poor soldering around the fuse holders as soon as I got mine and that almost certainly changed the current readings, probably less so the voltage readings.
--- End quote ---
It shouldn't do, otherwise you'd need to recalibrate every time you changed the fuse.
mnementh:
Bang-em-good has them on sale again for $17.77 for the next 9 days (actually, until they sell out, which took about 10 hours last time) with free "Slow boat From China" shipping or 7-12 day Priority shipping for an additional 56ยข.
https://www.banggood.com/ANENG-AN8008-True-RMS-Digital-Multimeter-AC-DC-Current-Voltage-Resistance-Frequency-Capacitance-Test-p-1157985.html?p=GI031609948520121218
This URL has my affiliate code; it costs you nothing but I get a few affiliate points I can use to buy stuff a little cheaper. Full disclosure, etc.
https://www.banggood.com/ANENG-AN8008-True-RMS-Digital-Multimeter-AC-DC-Current-Voltage-Resistance-Frequency-Capacitance-Test-p-1157985.html
This URL is completely unsullied for those purists out there. ;)
Cheers,
mnem
Honey, where are my pa-a-a-ants?
ez24:
--- Quote from: MacMeter on August 01, 2017, 07:11:44 pm ---I ordered one on Amazon, knowing it would be slow from China.
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There are several Amazon sellers. You can find one that has them in the Amazon warehouse and can get one in a few days (Prime member). Mine took 3 days. This comes from the warehouse:
https://www.amazon.com/gp/product/B072JMBLJS/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
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