Products > Test Equipment

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

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crazyguy:

--- Quote from: kalel on July 12, 2017, 05:02:35 am ---Neat images guys. Good to know about the accuracy too.

About the "True RMS" thing written, is it real or is it there just to look nice?

It seems they like to add it on a lot of meters, including this sub $10 one:


--- End quote ---

It is real, all these cheap DMM are based on Hycon HY12P65 DMM chipset.

datasheet
http://www.hycontek.com/wp-content/uploads/DS-HY12P65-EN.pdf

T-RMS Bandwidth ~ 1.5kHz

kalel:
Thanks crazyguy, good to know it's real for better AC reading.

floobydust:

--- Quote from: crazyguy on July 12, 2017, 06:28:18 am ---It is real, all these cheap DMM are based on Hycon HY12P65 DMM chipset.

datasheet   http://www.hycontek.com/wp-content/uploads/DS-HY12P65-EN.pdf

T-RMS Bandwidth ~ 1.5kHz

--- End quote ---

Neat multimeter IC and.. it has UART pins...

AC measurement bandwidth is lower than I thought:
AC sine wave 0.5% error 20-1,500Hz and -3dB at 6kHz.
Square wave 0.5% error max. 100Hz
Triangle wave 0.5% error max. 1.2kHz

But the IC's filter settings can maybe tweaked in app firmware to do better.

Fungus:

--- Quote from: ocw on July 12, 2017, 03:00:01 am ---I received my AN8008  today.  It was ordered on June 29

--- End quote ---


--- Quote from: Mark Hennessy on July 11, 2017, 11:18:47 pm ---Mine arrived today. Ordered 1st July.

--- End quote ---

 >:(

tronde:

--- Quote from: kalel on July 12, 2017, 05:02:35 am ---Neat images guys. Good to know about the accuracy too.

About the "True RMS" thing written, is it real or is it there just to look nice?

It seems they like to add it on a lot of meters, including this sub $10 one:


--- End quote ---
Spend some time here:

https://www.eevblog.com/forum/testgear/hacking-the-victor-vc-921/

As you can see from the images AN8203 and VC921 looks slightly different. Don't know about the internal of the AN, but you can find some useful info around regarding the VC921. If you stay away from mains, it is certainly worth the price. Especially if you hack it and enable serial out and 6000 or 8000 scale lenght. Seems like the Chinese have come up with some really interesting chipsets for small money.

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