AN8008 US $19, 9999count, 1uV, 0.01uA, 0.01Ohm, 1pF resolution meter

[Fungus]

fuses are only for reading current

That part's true.

the CAT ratings are only for reading voltage.

*and i'm pretty sure they dont cover the ability to do something stupid like spining the rotary switch while the leads are hot.

This part? You made it up.

CAT ratings do cover doing stupid things like spining<sic> the rotary switch while the leads are hot.

[alm]

fuses are only for reading current, the CAT ratings are only for reading voltage.

*and i'm pretty sure they dont cover the ability to do something stupid like spining the rotary switch while the leads are hot.

Do you have a reference for your definite statement? IEC 61010-1 2nd edition is directly contradicting your statement (see attachment). I do not have access to the third edition, so feel free to post a quote if they relaxed that requirement. I do not believe the impulse voltage tests have to be applied at the current inputs, only the maximum rated voltage (i.e. 1000 V DC and AC in this case).

[tronde]

alm:

What is the full title of the document you have?

I have found the general part of 61010-1, 3rd ed, but there are several parts.

http://www.china-gauges.com/download/IEC-61010-1-2010-06.html

[alm]

ANSI/ISA-61010-1 (82.02.01)
CSA C22.2 No. 1010.1
ANSI/UL 61010-1
Formerly ANSI/ISA-82.02.01-1999 (IEC 61010-1 Mod)

Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use Part 1: General requirements

[...]

This standard is based on IEC 61010-1, Second Edition (2001).

In the second edition, the test and measurement section was still part of 61010-1. In the third edition, it was moved to IEC 61010-2-030, so it would not be included in the document you linked. IEC 61010-2-033 may also be relevant.

[Nusa]

In the case of the CAT markings on the AN8008, the ratings are clearly not claimed for the fused A/mA input jack, so there's no requirement for fuses to meet that rating. I think you're arguing about a moot point.

[Fungus]

In the case of the CAT markings on the AN8008, the ratings are clearly not claimed for the fused A/mA input jack, so there's no requirement for fuses to meet that rating. I think you're arguing about a moot point.

a) There's a fuse in the uA input path, shared with the voltage ranges.

And ... (b) I'm fairly sure the CAT rating doesn't only apply to specific input jacks no matter how they draw it on the front.

The standard doesn't seem ambiguous: "The maximum voltage for any function is applied to each pair of terminals..."

[tronde]

Found Russian edition of IEC 61010-2-030-2013 and IEC 61010-2-033-2013

Google translate seems to make sense, and it seems like both standards are identical to the original text according to translate.

61010-2-030
http://docs.cntd.ru/document/1200110355


61010-2-033
http://docs.cntd.ru/document/1200107023

Maybe some of our Russian speaking members can take a look at it and tell us what they think?

A IEC site:docs.cntd.ru/document/ search reveals other standards as well.

[Gandalf_Sr]

Guys, It's a $20 meter FFS!  If I had to test a 1,000V system or a 15kA supply, I wouldn't be happy using my Fluke or Agilent meters.  I bought an AN8008 so I could measure mA, uA, and a few volts on small embedded systems. For $20 they could write anything they like on the case.

[tronde]

Two more from Russia worth looking at

IEC 61010-2-032-2014
Safety of electrical equipment for measurement, control and laboratory use. Part 2-032. Particular requirements for hand-held and hand-manipulated current sensors for electrical tests and measurement

http://docs.cntd.ru/document/1200114258



 IEC 61010-031-2013
Safety requirements for electrical equipment for measurement, control and laboratory use. Part 031 Safety requirements for hand-held probe assemblies for electrical measurements and tests

http://docs.cntd.ru/document/1200110262

[MacMeter]

Searched the Internet, could not find a PDF manual for this "AN8008 True-RMS Digital Multimeter". Anyone know of a download link? Thanks!

[stj]

here:

[stj]

they seem pretty proud of it. (the meter)

http://www.szzotek.com/en/col.jsp?id=144

[crazyguy]

Searched the Internet, could not find a PDF manual for this "AN8008 True-RMS Digital Multimeter". Anyone know of a download link? Thanks!

ANENG AN8008 is re-branded model of the Shenzhen ZOTEK Instruments ZT-109

ZOTEK ZT-109
http://szzotek.com/en/col.jsp?id=144

[janekm]

Searched the Internet, could not find a PDF manual for this "AN8008 True-RMS Digital Multimeter". Anyone know of a download link? Thanks!

ANENG AN8008 is re-branded model of the Shenzhen ZOTEK Instruments ZT-109

ZOTEK ZT-109
http://szzotek.com/en/col.jsp?id=144

The funny thing is that the ZT-109 is a lot more expensive than the AN8008 

[WhichEnt2]

I can hardly understand, what current someone can measure on the cat III or IV equipment with 500 mA and 10 A ranges. Wire up a kettle for test purposes? Short probes across the phases?

[Gandalf_Sr]

I can hardly understand, what current someone can measure on the cat III or IV equipment with 500 mA and 10 A ranges. Wire up a kettle for test purposes? Short probes across the phases?

LOL, VERY funny    How about - test the control rod mechanism in a nuclear power plant?

Mine is still in transit - I ordered an AN8008 from Amazon on July 16th thinking that it was shipping from the USA.  It says "Package received by carrier CHINA" as of July 19th and is supposed to arrive with me in the US between 4-25 August!  I paid a couple of dollars extra at Amazon but they don't specifically make it clear when something is coming from China which eBay does    but my experience is that stuff often arrives much sooner than estimated when coming from China.

[plazma]

Searched the Internet, could not find a PDF manual for this "AN8008 True-RMS Digital Multimeter". Anyone know of a download link? Thanks!

ANENG AN8008 is re-branded model of the Shenzhen ZOTEK Instruments ZT-109

ZOTEK ZT-109
http://szzotek.com/en/col.jsp?id=144

The funny thing is that the ZT-109 is a lot more expensive than the AN8008 

Are they totally identical inside? I wonder if the TX pin is bonded in the more expensive Zotek version.

[WhichEnt2]

LOL, VERY funny    How about - test the control rod mechanism in a nuclear power plant?

Too much exotic thing.
My imagination on these categories ends on the simple substation stuff. Large busbars, high current, etc.

[alm]

I can hardly understand, what current someone can measure on the cat III or IV equipment with 500 mA and 10 A ranges. Wire up a kettle for test purposes? Short probes across the phases?

I agree that the risk of disrupting a conductor sounds strange for a high-energy circuit. There are some adapters that allow interruption of mains conductors without exposed wiring. In addition, some AC current clamps have an output of 1 mA/A, so they require a mA jack to use.

There is also the current that flows if you accidentally leave it set to current and connect it across a voltage source (or even set it to voltage with the leads in the current jacks for meters that do not have a jack alert)? Humans make mistakes, and a good safety systems are there to prevent people from getting injured/killed by those mistakes.

If you want to prevent those mistakes, then you can use meters without current jacks like the Fluke 101 or Fluke T5-600/1000. No expensive fuses to blow either .

[WhichEnt2]

some AC current clamps have an output of 1 mA/A, so they require a mA jack to use.

Didn't know that. Thanks for clarification.

If you want to prevent those mistakes, then you can use meters without current jacks like the Fluke 101 or Fluke T5-600/1000. No expensive fuses to blow either .

Thanks, but I never had a problem with the choice of dmm.

Also those type of adapters is great. I use this: http://www.pinsonne-elektronik.de/media/images/ut71_poweradapter.jpg with the ut71e for a couple of years.

[crazyguy]

Searched the Internet, could not find a PDF manual for this "AN8008 True-RMS Digital Multimeter". Anyone know of a download link? Thanks!

ANENG AN8008 is re-branded model of the Shenzhen ZOTEK Instruments ZT-109

ZOTEK ZT-109
http://szzotek.com/en/col.jsp?id=144

The funny thing is that the ZT-109 is a lot more expensive than the AN8008 

Are they totally identical inside? I wonder if the TX pin is bonded in the more expensive Zotek version.

don't expected too much

In Dave's teardown video, the PCB version already exposed the true identity of the Aneng AN8008.

The PCB version is ZT109 V0.4 170213

7:59


Zotek VC17B+, it is much easier to add the RS232 connection
http://kazus.ru/forums/showthread.php?t=112135&page=171#

[plazma]

Zotek VC17B+, it is much easier to add the RS232 connection
http://kazus.ru/forums/showthread.php?t=112135&page=171#

Aneng rebrand model is AN860B+. The non plus version AN860B had a bug when switchin from DC to AC. I don't know if it is fixed in the + model.

[MacMeter]

I can hardly understand, what current someone can measure on the cat III or IV equipment with 500 mA and 10 A ranges. Wire up a kettle for test purposes? Short probes across the phases?

LOL, VERY funny    How about - test the control rod mechanism in a nuclear power plant?

Mine is still in transit - I ordered an AN8008 from Amazon on July 16th thinking that it was shipping from the USA.  It says "Package received by carrier CHINA" as of July 19th and is supposed to arrive with me in the US between 4-25 August!  I paid a couple of dollars extra at Amazon but they don't specifically make it clear when something is coming from China which eBay does    but my experience is that stuff often arrives much sooner than estimated when coming from China.

I did exactly the same Amazon order. Thought I might get it quicker, not the case.

[kalel]

Just be careful if buying from eBay for a suspiciously low price. From time to time, they pop up. I guess you can get the money back, but still.

[MacMeter]

Just be careful if buying from eBay for a suspiciously low price. From time to time, they pop up. I guess you can get the money back, but still.

Indeed, EBay is my last choice when shopping, though at times it's the only place to find "odd" items.