Author Topic: Hantek 2000 series - 2C42/2C72/2D42/2D72  (Read 30075 times)

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Offline ataradov

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #125 on: July 31, 2019, 04:06:04 pm »
Buttons are too overloaded with functions, so it is very hard to control the UI and trace parameters (V/div, time/div, offset). The screen is very small for a real every day use tool.

If you absolutely need battery power, then I have no idea. Otherwise Rigol 1054z or similar offerings from Siglent.

Also for this scope 3K memory is plenty, given the nightmarish navigation, you won't be scrolling past what's on the screen a lot anyway.
Alex
 

Offline cliffyk

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #126 on: July 31, 2019, 04:42:49 pm »
I would not buy one unless my budget was such that it was what I could afford--while it is better than no 'scope, and one step above the silly "toy" ARM/NANO based things it is just a small step. If you can swing it get one of it's big brothers, like the DSO1000B series instruments...
-cliff knight-
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Offline scatterandfocus

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #127 on: July 31, 2019, 05:07:35 pm »
Thanks ataradov.  I think my needs are pretty lowly at this point, and I don't see that changing any time soon.  I do want battery power for portability and isolation.  I'm surprised that the bench dso's don't off a low power mode for running from battery power.  They look to be small and light weight, but being tied to ac power limits mobility.  I'm also surprised that there aren't any small tablet format scopes in the lower price range.  It could be a very handy device.  As you said, the display on the 2XX2 scopes (and the mini dso's) is too small.  Looks like the lowest cost option for a tablet format is from Micsig at 3-4x the price of a 2D42.  Sure the specs are better, but if you don't need the higher specs, you are paying 3-4x the price for only a bigger display.
 

Offline ataradov

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #128 on: July 31, 2019, 05:39:44 pm »
It is up to you, of course, but for a first DSO I would strongly advice against buying this. Really, I operated dozens of real DSOs of all price ranges, and this thing frustrates me to no end. I know exactly what I want to do, and I constantly get confused and change stuff I don't want to change. I'm not sure it will be able to figure it out if you don't know how to operate a scope.
Alex
 

Offline scatterandfocus

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #129 on: July 31, 2019, 06:08:24 pm »
Well I have a lowly analog scope, so maybe for now I will just video that if I need to look back at waveforms and nevermind mobility for now.   Either that or get an Owon VDS1022I connected to an old laptop to compliment my analog scope.  Too bad the Owon isn't compatible with android tablets.

I guess my problem is that I know what I want in a dso, but no one makes it yet.  And I think I'm far from being alone.  Tons of those toy mini dso's have been sold because they are low cost and battery powered, even though they aren't a decent tool.  There is definitely a want for that sort of format at the lower cost bracket.  And multi-functionality (scope, awg, meter) adds alot of value.
 

Offline Microcheap

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #130 on: August 01, 2019, 05:48:38 am »
I have being using a 2D42 on my bench for some hobby grade stuff, things like microcontrollers and basic analog circuits and I would not call it junk, instead prefer to say that it is just a basic tool so, people who need it for more advanced stuff might find it some what limiting.
I also have a Rigol DS1054Z as my main oscilloscope but many times I find the Hantek2d42 very practical to just quickly check a signal on a board I am working and I like the fact that I can easily change between scope and DMM function.

I agree that the screen is a bit small and that you might need some time to get used to the controls but i think it is just a trade off of a device that was intended to be portable an cheap. I also don't know an option that will battery powered, packed with functions and cheap at the same time.

I spotted this little scope on Aliexpress another day: https://www.aliexpress.com/item/33021370646.html?spm=a2g0s.9042311.0.0.46064c4dYIVz1v I haven't tried it, but the specs looks interesting although the display is the same size as the Hantek's, it has only one channel and looks more a toy. There was a thread about it here in the forum a few days ago.

Regarding the VDS1022, you can try the app HSscope for Android http://hscope.martinloren.com/ if your tablet is compatible with USB OTG.
 

Offline scatterandfocus

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #131 on: August 01, 2019, 04:21:50 pm »
Thanks Microcheap.  It seems that opinions are divided on the Hantek 2XX2.  In your opinion, is scrolling and zooming adequate on the 2D42?

On the Owon VDS1022i, I thought that it wasn't working on Linux, so I'm surprised to see that it is listed as being compatible with an Android app.  That is pretty interesting.  Maybe it is the case that only the Owon software doesn't yet run on Linux.  So if the Owon hardware does run with Linux/Android, that device could be useful even with a smartphone.

 

Offline Microcheap

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #132 on: August 05, 2019, 11:36:13 pm »
You can easily analyze a signal by pausing the acquisition and using the arrow keys on the center of the keypad to zoom in or scroll a waveform, but the level of details you will be able to see will be limited by the amount of memory lengh available (6k single channel).
 

Offline Gorkde

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #133 on: August 12, 2019, 10:29:38 am »
Guys I got a problem and maybe you experts can help me.

I lost my job because and have nearly no money but needed a scope.

I bought a 2D72 at aliexpress and the scope measures are off.
When measuring a battery with 7.6v the scope shows 8.4 or so volts.
Also when measuring the AWG signal the scope is higher than the signal.
This offset seems to change when I change the measuring range. The larger the range the larger the offset.
See here:  https://www.eediscuss.com/forum.php?mod=viewthread&tid=14904&page=1&extra=#pid18698

Calibration with nothing attached did not change anything (did 3 times).

I bought this with shipping from Spain but the seller wants me now to return it to China, which would be as expensive as the unit.

Questions:
- Can I calibrate with probe attached? And if so shorted? Or will this destroy the unit?
- What might be the reason?
- How might I fix this?

My problem is I got no further measuring equipment besides an cheap multimeter.
« Last Edit: August 12, 2019, 10:32:44 am by Gorkde »
 

Offline Microcheap

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #134 on: August 14, 2019, 02:44:07 am »
I bought a 2D72 at aliexpress and the scope measures are off.
When measuring a battery with 7.6v the scope shows 8.4 or so volts.

https://www.eevblog.com/forum/projects/why-are-oscilloscopes-so-inaccurate/msg2605881/#msg2605881

A small offset in the channels is normal and should be compensated by the calibration. Can you post a picture of the traces of your scope showing the level of the offset?
 

Offline Gorkde

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #135 on: August 14, 2019, 06:35:31 am »
But this is 15% also as I said calibration did nothing.

What about connecting a probe at calibration? Maybe this changes it?

The scope line does show the same offset. As well as the cursor measurements
 

Offline gongye5776601

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #136 on: August 26, 2019, 06:00:07 am »
Hello, I have a HANTEK 2D72 turned off now.Now you can't get into DFU mode anyway. I want to ask if you have any HEX files read by stlink. I want to revive my machine. Thank you!
 

Offline Andbro

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #137 on: September 01, 2019, 05:38:23 pm »
Hi,

Does the oscilloscope part Hantek is better than Jinhan and the FNRSI 5012-H ?

Thank
 

Offline Dainis

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #138 on: September 04, 2019, 12:02:12 pm »
Carefully reading the forum, I couldn't find a 100% answer, is the hardware of 2X42 and 2X72 series identical or different?
 

Offline Microcheap

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #139 on: September 04, 2019, 03:12:22 pm »
Does the oscilloscope part Hantek is better than Jinhan and the FNRSI 5012-H ?

I don't know about the Jinhan, but I have a 2D42 and I just got one of these 5012h with the only intention to compare it to the Hantek. I didn't have time to play with it yet though but, my first impression is good. If you only need the scope and 1 channel is enough for you, I think the 5012 can be considered.

I will try to do a comparative later and post more details here.

Carefully reading the forum, I couldn't find a 100% answer, is the hardware of 2X42 and 2X72 series identical or different?
As far as I can tell they are identical. The only difference is that the "C" models don't have the components for the function generator soldered on the PCB.
« Last Edit: September 06, 2019, 09:49:41 pm by Microcheap »
 

Offline PKTKS

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #140 on: September 06, 2019, 01:56:29 pm »
Hi,

Does the oscilloscope part Hantek is better than Jinhan and the FNRSI 5012-H ?

Thank


This one is new to me  (HANTEK and JINHAN I was already  aware...)

Does anyone already reviewed or made a good tear down  or bought this one ?

for comparison as the BW is far better for the price...

And.. SIGROK does not count with neither one of these scopes
(besides  classic Hantek 6022 which is well supported in sigrok)

Tnx
Paul
« Last Edit: September 06, 2019, 02:06:15 pm by PKTKS »
 

Offline richieHH

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #141 on: September 09, 2019, 02:39:53 pm »
Just a quick confirmation regarding the stand. Boy, I had to massage that thing for ages before it would pop open: I was terrified I would break it as I am thinking of returning the unit - the typical chinglish Amazon description said it was a 2D72 (or seemed to) and I got a 2D42. That said, the unit is very nice and the price is still ok.

Tell me, how accurate have you found the voltmeter? Its telling my a brand new Duracell 9v is 9.25 v and a 1.5v is 1.73v - this seems WAY out to me.
 

Offline Gorkde

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #142 on: September 09, 2019, 03:08:46 pm »
My Voltmeter is very precise but my Oszilloskop is way off
 

Offline richieHH

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #143 on: September 09, 2019, 03:22:39 pm »
I think the build quality is superb. It's solid. The display is eminently readable. The connectors do the job.
 

Online tooki

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #144 on: September 09, 2019, 03:56:24 pm »
 

Offline richieHH

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #145 on: September 09, 2019, 05:19:19 pm »
I've had mine plugged into the mains via the supplied USB plug and cable and its still on one bar after 4 hours. This is ridiculous.
 

Offline ataradov

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #146 on: September 09, 2019, 05:32:11 pm »
I had the same problem. There is a power manager/selector IC that dies and it stops charging. ICs are available, but I never bothered to replace it, so I don't know if it is the only problem.
Alex
 

Offline Microcheap

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #147 on: September 09, 2019, 09:57:40 pm »
Tell me, how accurate have you found the voltmeter? Its telling my a brand new Duracell 9v is 9.25 v and a 1.5v is 1.73v - this seems WAY out to me.
The multimeter is precise, but a few months ago there was a batch of devices with problems in DMM mode.

Do this tests: put the multimeter in DC V mode and short the test leads to see if the display show only 0.000V, do the same with mV. After that, check the resistance (OHM), short the leads and you should see 0 ohm or a very low value. Then, test the diode mode, with nothing connected you should see 0L. Let me known the results.

 

Online Pinkus

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #148 on: September 10, 2019, 08:27:38 am »
Do this tests: put the multimeter in DC V mode and short the test leads to see if the display show only 0.000V, do the same with mV. After that, check the resistance (OHM), short the leads and you should see 0 ohm or a very low value. Then, test the diode mode, with nothing connected you should see 0L. Let me known the results.
Mine does all this ^^^ and it is consistent with my other multimeter. I am using this tool only as a backup scope (for car, remote quick checks, AC power lines etc.) and so far I am satisfied. It has exceeded my (not too high) expectations. It is definately usable (not like the toy crap you can get for $50).
However, I would not recommend it as your main oscilloscope, as the operation (due to the UI / missing knobs) proved to be too complicated and lengthy. If you want a cheap entry level scope better go with desktop with designated knobs for misc. functions, e.g.: a Keysight 1000x or a cheap Rigol or Siglent. Using this Hantek (or all the other hand held device from other manufacturers) as your one and only oscilloscopes will drive you crazy soon and you will buy a real oscilloscope soon after anyway. As I said: for using it as a 2nd / backup scope it is fine (or if you need an oscilloscope only once a year).

P.S.
Hint: I tried three times to purchase the 2C42 (the cheapest variant) from (different) sellers on Ali with the lowest prices and three times they tried to fu** me by sending me fake tracking # and talking me to trust them and not to complain at Ali but wait. Of course none of these devices ever showed up (I got my money back from Ali). I then ordered at Ebay and had my device delivered within a week (paid 10% more than at the cheapest seller on Ali).
« Last Edit: September 10, 2019, 08:36:21 am by Pinkus »
 

Offline jake@cs

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Re: Hantek 2000 series - 2C42/2C72/2D42/2D72
« Reply #149 on: September 13, 2019, 11:37:03 pm »
I've dumped the firmware from a new 2D72, and stored in on our GitHub at https://github.com/circuit-specialists/Hantek-2D72. Now there is a permanent place to get the files, and the README will have a list of all the mods I've found so far. Later, I'm going to order in some ST-Link V2 to sell as products in case people need to flash or unbrick their devices.
 
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