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

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Electro Fan:

--- Quote from: Dave Wise on April 20, 2024, 09:22:40 pm ---Apologies if this has been discussed.  Is the continuity test fast like the early Fluke handhelds that did it in hardware, or slow and IMO useless?

--- End quote ---

Not super fast, not as sensitive and as fast as a Fluke 179 or a Brymen 789 but fast enough unless continuity is the only thing or the primary thing you are measuring.  What it's good at is supporting basic DMM functions in a small package and measuring reasonably accurately in the millivolt and milliamp range - and even down to hundreds of microamps. It isn't going to compete with a Keysight bench meter but it's surprisingly good for ~$30.  If someone wanted to get started with two meters to simultaneously measure low voltage and low current and didn't need industrial strength durability, it would be hard to find a better way to get this done with better accuracy for $60.  If you want industrial strength or measure high voltage it's not the right meter.  For entry level low voltage electronics it's a good deal.

Edit:  after re-reading my post I was concerned that maybe I overstated the voltage accuracy.  I just did some measurements with an old (not recently calibrated) DMMCheck reference from voltagestandard.com set for 2.0840V.  Nothing was warmed up for more than a few minutes but this is consistent with what I've seen over the years:  Fluke 179 2.047V, Aneng 8008 2.048V, Keysight 34465A 2.04824V.  The Aneng 8008 is pretty neat.

===

Edit:  per Fungus' post just below, here is a video showing a DT9205A - looks like a potential dedicated continuity tester  :-+

Fungus:

--- Quote from: Dave Wise on April 20, 2024, 09:22:40 pm ---Apologies if this has been discussed.  Is the continuity test fast like the early Fluke handhelds that did it in hardware, or slow and IMO useless?

--- End quote ---

Fast enough to not be in the "slow and useless" category.

If you want fastest possible continuity then an AN9205A is the one to get. Nothing is faster, at any price.
. It also has a really bright LED on the front that lights up for continuity.

For $8 you can afford to own one just for that. :-)

(I've considered pulling the PCB out of one and making a dedicated continuity tester in a 3D printed box but I never get around to it...)

ne_yo_0202:

--- Quote from: andyB2022 on February 22, 2023, 07:56:29 pm ---Yep, I have them exactly like that...

--- Code: ---FF FF FF FF FF FF FF FF FF 52 0 FA 0 0 BE 3
10 17 F 27 52 3 6E 50 64 4B 3C 3C A FF 40 FF
7 9A D6 81 64 0 96 0 0 80 A4 80 0 80 FB 78
4E 2 9 D3 FA 9 EE FE 9 8B EC 9 C9 19 A 0
0 1 0 1 0 7 98 0 64 0 64 0 64 0 0 0
0 80 0 80 0 80 0 80 0 80 0 80 0 80 0 80
9B 7E EE 7F A 0 EF 2A 0 0 0 0 0 0 0 0
6C 81 0 80 5C 84 E0 7C 18 1 0 0 0 0 0 0
0 0 0 0 0 16 0 10 0 C 0 7 13 1 12 3
0 0 0 0 0 0 0 11 0 D 0 9 15 2 0 4
0 0 0 0 0 0 0 0 0 0 0 A 0 13 0 0
0 0 0 0 0 0 0 0 0 0 0 B 0 0 0 0
D 0 2 10 D 0 3 20 20 0 3 20 20 0 3 10
0 80 0 80 0 80 0 80 41 0 3 5 D 0 2 20
0 80 0 80 0 80 0 80 0 80 0 80 0 80 0 80
0 80 FF FF FF FF FF FF 5A C7 CC F 78 B2 0 0
--- End code ---

As someone on the forum experienced same issue Ive found thsee 3 values:

FA 00 C0 CE 03
E6 00 00 BD 03
F0 00 48 CE 03

8008
FA 00 00 BE 03 < this is the default value in the datasheet

FA 00 C0 CE 03 seemd that fixed it. I will try and come with an update.

--- End quote ---

Thank you very much, i try many dump file but LED light is not working, only your hex can save my AN8008.
For anyone who have AN8008, i have collect some dump from many post, i'm attach it here, hope one of it can save your AN8008

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