Author Topic: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter  (Read 299262 times)

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Offline tautech

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #75 on: July 14, 2017, 08:31:12 am »
I just did a 20min review video of the AN8008

Shorten it to two minutes and post it in the thread linked below, you might be in with a shot, you never know.   ;) :D ;D

https://www.eevblog.com/forum/contests/giveaway-rohde-schwarz-rtb2004-oscilloscope/
:-DD

Good to see you back on form Muttley.  :-+
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Offline evavaTopic starter

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #76 on: July 14, 2017, 09:52:08 am »
If they can sell meters this complete for $17, how much would it cost to put in some MOVs, proper fuses, etc.?

Could somebody make a super-meter and sell it for $50?

How many UT-61Es are sold every year? That's the potential market size.  :popcorn:

That would be something  ;)
 

Offline EEVblog

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #77 on: July 14, 2017, 10:20:30 am »
I intended too but completely forgot to put mains up its clacker.

 
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Offline Wytnucls

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #78 on: July 14, 2017, 10:54:24 am »
It is supposed to have a hidden range for temperature on the mV selector. Is that true?

« Last Edit: July 14, 2017, 11:03:31 am by Wytnucls »
 

Offline sleemanj

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #79 on: July 14, 2017, 11:24:11 am »
It is supposed to have a hidden range for temperature on the mV selector. Is that true?



I think you have to enable that in the EEPROM, not enabled from factory for that model.
( See my post on a previous page with links - https://www.eevblog.com/forum/testgear/an8008-us-$19-10000count-1uv-0-01ua-0-01ohm-resolution-meter/msg1245000/#msg1245000 )

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Offline Wytnucls

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #80 on: July 14, 2017, 11:39:01 am »
That makes sense. It is advertised as a bonus on a Russian site. Feature not available on the standard model:

http://www.olx.ua/obyavlenie/tsifrovoy-multimetr-true-rms-zt109-an8008-9999-otschetov-bonus-IDsPpev.html
 

Offline Fungus

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #81 on: July 14, 2017, 11:46:57 am »


You paid $25?

You can get them for a lot less than that.

I intended too but completely forgot to put mains up its clacker.

Doesn't matter in the slightest.
 

Offline kalel

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #82 on: July 14, 2017, 11:49:15 am »
Nice video. It definitely does seem like a nice meter.

That makes sense. It is advertised as a bonus on a Russian site. Feature not available on the standard model:

http://www.olx.ua/obyavlenie/tsifrovoy-multimetr-true-rms-zt109-an8008-9999-otschetov-bonus-IDsPpev.html

Do you think we can expect a more expensive model with just this feature factory enabled? Or with some other small addons.

« Last Edit: July 14, 2017, 11:51:35 am by kalel »
 

Offline Fungus

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #83 on: July 14, 2017, 11:57:27 am »
Do you think we can expect a more expensive model with just this feature factory enabled? Or with some other small addons.

Lets hope so!
 

Offline kalel

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #84 on: July 14, 2017, 01:40:22 pm »
Do you think we can expect a more expensive model with just this feature factory enabled? Or with some other small addons.

Lets hope so!

If you're considering value for the money, a temperature option has nice value (at least that's my personal opinion).
It appears also under the name "RM109", but the price is a bit high, about $30 on Ali and $50 on eBay right now.
 

Offline Mark Hennessy

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #85 on: July 14, 2017, 05:13:17 pm »
I did some more basic testing last night - the write-up is here: http://golbornevintageradio.co.uk/forum/showthread.php?tid=5501&pid=69844#pid69844

As you'll see, I found a bug when measuring frequency when the selector is set to V (not a problem on the AN8002). It's OK on Hz though. It's not as sensitive as the AN8002. In terms of frequency, it goes out to 80MHz. It might go further, but my RF generator tops out at +17dBm. Joe Smith got 200MHz from the AN8002, but the level wasn't stated.

The amplitude of the square wave is very much equal to the battery voltage.

The AC -3dB point is 3kHz. I did some testing at 100Hz to see how good the RMS converter is. As good as a Fluke 87V, in short. Obviously the Fluke is better at higher frequencies - the AN8002/8 is specified to 200Hz.

As far as I can tell, before these Aneng/Zotek meters came along, this sort of money only got you 2000-count meters, and certainly no sign of true-RMS. These really have shook up the £10-15 market. My AN8002 has been flawless over the last few months, and despite the expected lack of safety features, it appears to be pretty rugged according to Joe Smith's tests. Indeed, it appeared to pass tests that the Fluke 87V didn't. OK, more sampling would be required before anyone reached any conclusions, but first impressions are very positive indeed.

Does anyone know anything about the internal switch? On the AN8002, it's range.
 

Offline PartialDischarge

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #86 on: July 14, 2017, 06:15:37 pm »
Well, after watching Daves video I just.... bought another one  :popcorn:
 

Offline deflicted

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #87 on: July 14, 2017, 06:32:05 pm »
Well, after watching Daves video I just.... bought another one  :popcorn:

I'd be interested to see how well they compare. With everyone buying these and putting them through various tests, it's still somewhat of an open question whether the results are repeatable from one unit to the next. I ordered one yesterday, and was almost tempted to buy a second, just for an extra measure of confidence. Especially with the uV/uA resolution being so rare for meters at this price level.
« Last Edit: July 14, 2017, 06:34:52 pm by deflicted »
 
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Offline stj

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #88 on: July 14, 2017, 07:03:28 pm »
Does anyone know anything about the internal switch? On the AN8002, it's range.

it was tried in a utube review, it is fully funtional manual range override.
more interesting question is why it's there - is it used in the calibration process??
 

Offline stj

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #89 on: July 14, 2017, 07:06:16 pm »
just arguing with someone here,
the fuse in a meter is to save the user - not the meter.

person here had mA range selected and accidentally probed a 1.5A 5v supply - blew the fuse and the switch-pad off the board.  :palm:
now he says the meter is shit - LOL  :-DD
 

Offline PartialDischarge

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #90 on: July 14, 2017, 07:29:49 pm »
now he says the meter is shit - LOL  :-DD

Well, I like to believe that everyone here knows what we are buying, at least I do, the merits and limitations of the meter.
 

Offline stj

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #91 on: July 14, 2017, 07:31:52 pm »
my point is, if you exceed the spec and it blows - that does not mean it's shit, the specs are there for a reason!
 

Offline ocw

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #92 on: July 14, 2017, 07:41:44 pm »
Quote
person here had mA range selected and accidentally probed a 1.5A 5v supply - blew the fuse and the switch-pad off the board.

Aneng is making an educational product.  For merely $20 that person will now be much more likely to remember what not to do next time...
 
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Offline stj

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #93 on: July 14, 2017, 08:30:46 pm »
i doubt that, we was complaining that his fluke could handle 20A pulses on the 10A range, therefore any meter that cant must be shit.
makes me wonder what that fluke has in it's fuse clips!!!
 

Offline Nusa

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #94 on: July 14, 2017, 09:02:59 pm »
A 10A fuse SHOULD be able to handle 20A pulses, if the pulse is very short.
 

Offline floobydust

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #95 on: July 14, 2017, 09:17:46 pm »
just arguing with someone here,
the fuse in a meter is to save the user - not the meter.

person here had mA range selected and accidentally probed a 1.5A 5v supply - blew the fuse and the switch-pad off the board.  :palm:
now he says the meter is shit - LOL  :-DD

This guy is full of it, how do you blow a 10A fuse when the burden resistor (on mA) is kinda high, and on 5V?!
 

Offline Fungus

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #96 on: July 14, 2017, 09:21:54 pm »
Well, after watching Daves video I just.... bought another one  :popcorn:
I'd be interested to see how well they compare. With everyone buying these and putting them through various tests, it's still somewhat of an open question whether the results are repeatable from one unit to the next.

Are you saying Dave just got lucky? On all ranges?
 

Offline stj

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #97 on: July 14, 2017, 09:33:03 pm »
just arguing with someone here,
the fuse in a meter is to save the user - not the meter.

person here had mA range selected and accidentally probed a 1.5A 5v supply - blew the fuse and the switch-pad off the board.  :palm:
now he says the meter is shit - LOL  :-DD

This guy is full of it, how do you blow a 10A fuse when the burden resistor (on mA) is kinda high, and on 5V?!

read it again,

he blew the aneng8002 with 1.5A on the mA setting,

the 20A on the 10A range was on a fluke.
he's a meter-abuser!
 

Offline floobydust

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #98 on: July 14, 2017, 09:41:23 pm »
Oh, I was trying to figure out how the person wrecked it.

On that note, I don't see these tiny fuses for sale or a name for the series?
 

Offline stj

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Re: AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter
« Reply #99 on: July 14, 2017, 09:47:47 pm »
i'v seen them for sale, no idea on the spec though.

on the bright side, looking at the meter i think if you move the bottom clip down to the terminal you can use 20mm fuses.
 


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