ANENG AN870 19,999 Count True RMS Multimeter Review and Teardown
ฝัง
- เผยแพร่เมื่อ 28 มิ.ย. 2024
- In this video, I did a review and teardown of an ANENG AN870 19,999 count true RMS multimeter. You can find this meter on Banggood's website here: bit.ly/3m44y8j
00:00 Introduction/Overview
04:37 Range Switch/Display
05:23 AC Measurements
05:53 DC Volt Measurements
07:00 DC mV Range
10:32 DC mV Range Compared with a Keithley 196
12:39 Ohm/Continuity/Capacitance/Diode Measurements
16:09 Frequency Measurements
18:23 Current Measurements
21:00 NCV Tests
22:07 Teardown
Some of the test equipment and electronics are currently on sale at Banggod: bit.ly/39UxSsR
Here is a a link to the REF200 current source I built: www.kerrywong.com/2013/07/13/u... - วิทยาศาสตร์และเทคโนโลยี
![[LIVE] : ONE ลุมพินี 68 | คู่เอก "พระจันทร์ฉาย vs โจนาธาน"](http://i.ytimg.com/vi/F3IM3w-XchI/mqdefault.jpg)
Thank you for this very detailed review.
@22:30 Hi Kerry, great review. I believe the input jacks are supported by the risers on the B-side of the case that meet the bottom of the metal jacks.
I mainly use my Uni-t ut139s with the ut61+ as my second meter. However, I recommend the an870 as a first meter. There’s too many Flukes on eBay with the line 'I bought this two years ago and thought I’d use it more, it’s been in a drawer ever since.' At £30 you get a decent meter with a temperature setting which helps a lot when you’ve not got a thermal camera. The NCV is also far better than the Uni-t multimeter. When doing microvolts you need to reset any multimeter with the RELΔ button, this wasn’t the meter in the wrong it was simply used incorrectly.
Have you also seen AN9002? It's even cheaper and I'm not sure which one to pick - AN9002 or AN870.
@@camelCasedan870 is better for like only a 5 dollar difference
Good review, you are not a snob like the EEVBLOG guy.
Why snob?
HE IS WAY TO PICKY WHINES ABOUT NOTHING.
Excellent review thanks
Thanks for reviewing 👍I ordered this MM over Kaiweets because this one has range button to select the range manually which I want. I have a good clamp meter for HV vorks with proper CAT4 internals.
Very good!
I wish they made either a hand held or bench model that all the features of the AN999S minus the bluetooth speakers.
спасибо за обзор
It's great that you pointed out that the banana sockets are shallow.
What is the size of the fuses? I was not able to find this information on the web, I am curious because 25mm fuses are not very popilar in my region.
The fuses measure about 30mm x 5.7mm
@@KerryWongBlog Thanks a lot
Question, would you recommend this dmm to a beginner?
Hi, is there any chance/way to modify the ROM, and so this AN870 will be able to produce the Square Wave Output? I can see the LCD display is ready with the Square Wave Output segment... If so, this AN870 will be the best replacement for AN8008 + AN8009.
wouldn’t it be easier to just buy a cheap signal generator?
Po 2 latach użytkowania - zużyte "ścieżki" pod przełącznikiem zakresów.(brak
ohm-dioda-pojemność-zwarcie)
Very nice review. I got some questions answered. As beginner i am going to moove from 5$ mm to this one :)
Question: When DMM 'accuracy' is stated as ±X% and ±N digits it is clear that the TRUE value is the displayed value ±N digits, and to this we must add the percentage value. But is that X% of the full scale value or X% of the displayed value? For example: X=0.5, N=8; 2 Volt range (1999 count), displayed value is 1.234. So, applying the digits of uncertainty we have a value between 1.226 and 1.242 Volts. Easy. Now 0.5% of 1.234 is 0.006 but 0.5% of 2 (the FSD) is 0.010. Which should we apply?
Unless explicitly specified, the error percentage is always relative to your reading rather than the range
My rule of thumb when dealing with Chinese specifications for cheap products is divide by 2 to get peak value, divide by 4 to get usable spec. In this case, take 0.5% and multiply by 8 to get typical error of 4%, so I wouldn't trust the last two digits basically. If you want precision tools that can be trusted, save money and buy a real multimeter.
What voltage reference are you using? I didn’t get it from the audio.
EDC MV216A
UT61E+ is a much superior meter in both price, build quality, and "spec" and hopefully in reliability too. Dave Jones from EEVblog should have made a similar comparison video as you did.
UT61E+ is the double price of AN870 with a set of probes. There's also AN9002 even cheaper, but not sure about its quality.
Overall how do you like this meter?
Thank you and have a most awesome day!
I do like it for its price. But the market segment is pretty clear, it is geared towards the most budget conscious group. I personally, would use a slightly more rugged meter for daily use.
@@KerryWongBlog Kerry, What would you suggest for a better budget alternative? Thank you for the expeditious reply, have a most awesome evening!
@@jeffalessi At this price, there isn't a lot of choices, but you can check out the latest UT61E+ (check out my previous video), that is definitely a more solid meter. I will do a side by side comparison shortly.
@@KerryWongBlog Kerry, I look forward to the new review, Thank you and have a most awesome evening!
I think the original ut61e is a better meter, seems to be more accurate. The new ut61e+ has become too pricey and it's great that Aneng filled the gap left by the original ut61e. It's all about what you want in a meter, but for 95+ % of use cases this meter is fine. My Bryman 869s fills my need to geek out with a meter that does half a million counts (and accurately). My Fluke 87V fills my need to have a meter that feels like a brick in your hand.
Why the hell do you get so much stupid comments for a fair and detailed video review?
Based on the poor sensitivity at low voltages and the lack of protection, personally I would probably save a bit more money for a couple of weeks and buy a bit higher in the market, but that's just me !...cheers.
Although there are some issues in low nV range measurements, personally I don't think that is an issue for the majority of people as most of time you are not going to go down beyond decimal places in mV measurements. IMO, the maker should've just limited the resolution in all mV ranges to 10nV. Other meters like the UT61E+ I recently reviewed only go down to 10nV in all ranges although it is a 22,000 count meter.
@@KerryWongBlog, when you switch the range to DCA (mA, uA) with no probes connected, the display shows -.0003 practically all the time. Is this the normal behavior of the an870 multimeter?
@@yankovalsky7696 Mine does the same. This is not unusual even among much higher end multimeters.
@@KerryWongBlog, thanks. I like this multimeter, it has many more functions and is more precise than my old ut33c. I just don't know if the aneng shows the correct amperage. I have a Korad ka3005d laboratory power supply, during its calibration the ut33c shows 4.93A, while the an870 shows 5.000A. The cheapest "yellow" dpm multimeter shows 4.99A. I got used to the spacing of ut33c sockets and earlier, by mistake, I connected the probes in a similar way to the an870, ie the black one to the socket marked "V, ohm ...", and the red one to the socket marked "20A". I ran a small current through the probes. Could such action damage the an870? Unfortunately, I was doing it late at night and I wasn't really thinking. I hope you understand what I wrote, because I also help myself with a google translator - I am better at reading than writing in English :)
@@yankovalsky7696 A properly designed DMM should be able to handle the situation you mentioned even when the leads are in the wrong sockets. To see if your meter is in spec you will need to have a reference voltage source.
Hello, this multimeter have two decimal points, but whether it will show an improved value of 0.10R or 0.02R? I need something not expensive to measure my shunt resistor.
Good multimeter, but epoxy-coated chip-on-pcb very disappointing.....So, my choice are Aneng Q10 and UNI-T UT39E+. Both are build around normal traditional package ADC chip🙂
Information for poor people like me.
If want use up to 5-10 years = Uni-T
If want use 1-3 years = Aneng
I have both..
My aneng already die after 2 years...
My Uni-T already 5 years. Still ok until now
You must set .0000 if testing that, not 0.000 😅
So: "I don't think there's enough protection, but I'm not going to look on the other side of the PCB". Sort of defeats the purpose of a teardown.
We also don't get to see the quality of the switch contact layout, something that's important for judging the long-term wear of the switch.
Sorry Brian.... I did see a teardown posted elsewhere that confirmed there's nothing on the other side.
Очередной идиотизм от китайцев. Отдельная позиция Hz, хотя есть функциональная кнопка. А рядом позиция с 4! режимами, которые придется гонять по кругу.
Китай, он и в Африке - Китай.
Unfortunately I haven't learned something new.
Thanks for watching the video. I doubt anyone knew before hand that this meter was not able to register voltage readings below 10 microvolts....
What?
Is a multimeter review! Go to MIT dude. And learn something.