Author Topic: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)  (Read 106280 times)

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Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #100 on: June 16, 2016, 09:47:13 am »
Hi Roger,

I guess it depends on situation, for some things a chart recorder type display might be preferable, personally I would prefer both options, I use an old Picoscope ADC216 for such applications (mainly because it's 16 bit so more applicable to slower, more accurate trend measurements).

Quote
I think WARNING is fair given the scope has a fault!

I guess we'll agree to differ on that one  ;) (edit): A warning sure, but "WARNING WARNING WARNING" (four dozen exclamation marks deleted)? Nah. Coming into a forum shouting and stomping doesn't usually create a good first impression. It doesn't look like a 'fault' as such, more an implementation decision, as tautech implied. Faults don't normally put up explanatory messages. As I said before, I'd like to see single trace trigger work, in conjunction with trigger position obviously so that you could see pre, post trigger information or both.

I had a reply from the previously helpful lady at Owon this morning...

Quote
I'm sorry,this feature is temporarily does not support, I have put this question feedback to our engineer,we will try to improve.
Thank  you !

The 'temporarily' gives some grounds for hope.  :)

Chris
« Last Edit: June 16, 2016, 10:11:07 am by Gyro »
Chris

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Offline fourtytwo

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #101 on: June 16, 2016, 06:31:29 pm »
Coming into a forum shouting and stomping doesn't usually create a good first impression.

I really couldn't care less what you think, I only signed in here to warn others who may be considering this product. Ban me or delete me I couldn't give a shit!!

As for you attitude that it may not be faulty, I hope you enjoy your next purchase that doesnt work to its published specification in some way that's important to you!

Goodbye and good riddance.
 

Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #102 on: June 16, 2016, 06:54:41 pm »
At least I remained calm in the face of someone apparently citing my review as the reason for 'wasting' 45 quid and also tried to help you by submitting my own request to Owon in support of yours.

Maybe you could have hung around and contributed something positive to the forum.

Such is life I guess. ::)
Chris

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Online tautech

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #103 on: June 16, 2016, 08:01:05 pm »
At least I remained calm in the face of someone apparently citing my review as the reason for 'wasting' 45 quid and also tried to help you by submitting my own request to Owon in support of yours.

Maybe you could have hung around and contributed something positive to the forum.

Such is life I guess. ::)
Right you did too.  :-+
You can point some in the right direction but they just don't get it.  ::)

My hint was Roll mode and Google would've provided him with the explanation he need to understand a modern DSO.
Avid Rabid Hobbyist
 

Offline jopereira

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #104 on: June 16, 2016, 08:22:23 pm »
@gyro
I cancelled an Hantek 6022 order and bought this DSO after reading your review and others comments. You'll be responsible for my choice too as I'll have the best DSO money can buy in this price range.  ;)
Keep your contributions, they have helped many.
« Last Edit: June 16, 2016, 08:57:23 pm by jopereira »
 

Offline Glapsvin

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #105 on: July 11, 2016, 12:46:38 am »
Thank you all for all the hard work to create this review.  I just ordered 1022I and can't wait to get my hands on it.
I'm very surprised how little information is available about that osciloscope.  :) if I run into anything not yet covered in the thread I will post it.
 

Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #106 on: July 11, 2016, 10:41:07 am »
@Glapsvin and jopereira,

Welcome to you both.Yes, please do report back on your experiences. It's always good to be able to add to the combined store of knowledge. As you say, apart from this thread there is very little information out there so the more feedback the better.   :)
Chris

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Offline pascal_sweden

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #107 on: July 11, 2016, 11:38:53 am »
I am sure that the Owon USB scope is miles better, faster and more robust, than the SmartScope from LabNation!

See my separate thread about the SmartScope from LabNation.
« Last Edit: July 11, 2016, 07:54:56 pm by pascal_sweden »
 

Offline goldjohn

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #108 on: July 11, 2016, 12:31:35 pm »
!!!!!!!!!!!!!!!!!!!!!!!!!!!!WARNING WARNING WARNING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I have just bought one of these largely based on this review (being the only one I found)

OK it works BUT!!!!! any timebase setting slower than 50mS/div gets the following warning from the trigger system.......

"When the time per divider longer than 100ms, trigger will be set default as auto mode."

And sure enough it wont lock the display just like an untriggered waveform in auto, even single shot doesn't work!!  In a word, useless!!

I have mailed Owon today, if I ever get a reply I will be sure to let you know.

This is not mentioned in there product specs or manuals anywhere.

So Sad, did I just half waste the £90 it cost me :(
You could always try screen capture software, which seems to work quite well, at least for mypurposes

Sent from my SM-T310 using Tapatalk

 

Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #109 on: July 11, 2016, 07:17:50 pm »
Hi goldjohn,

Sadly fourtytwo has long since left the building but your idea is a good one... although you would need to be there to witness the event.

You've reminded me to give Owon another poke (mentioning eevblog of course) about adding slower than 100ms/div single triggering. We'll see if there's any news, it's good to keep the pressure on anyway.



Edit: I get the impression that you're not a fan of the LabNation SmartScope, Pascal. :(   Maybe it would be useful to start a thread on it. :)
« Last Edit: July 11, 2016, 07:31:05 pm by Gyro »
Chris

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Offline ralphrmartin

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #110 on: July 18, 2016, 07:18:16 pm »
Quick question about this scope. The isolation means that it is not connected to the USB ground, BUT the input channels still both share a common ground, right? Am I correct in assuming the input channels are NOT isolated from each other?
 

Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #111 on: July 18, 2016, 09:15:17 pm »
Hi Ralph,

Yes, your assumption is correct, the Ground isolation takes place at the USB interface so the grounds of the two inputs are common.

Chris

P.S. Just a note that this is intended as galvanic isolation from the PC ground, so appropriate safety precautions need to be taken if floating the input grounds at elevated voltages, eg. avoiding contact with the metal case.
« Last Edit: July 18, 2016, 09:38:02 pm by Gyro »
Chris

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Offline Hofabooz

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #112 on: August 08, 2016, 11:39:23 am »
Hi All

First post of the forum and I would like to thank Gryo Mark O and all other s who have posted on this thread.
I'm looking for my first scope as I have just stated to learn about digital electronics after not making any thing for years.
I had looked at the Hantek and others but the information contained in this thread has helped me decide to order the OWON VDS1022I.
Please advise if I'm missing something may main work will be with Arduino and Radio control systems my understanding is that this Digital scope should be fine for the speeds required and sample rate for my areas of interest.

Many thanks for your information in this thread. :-+ :-+

Regards

Mark
« Last Edit: August 08, 2016, 11:51:06 am by Hofabooz »
 

Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #113 on: August 08, 2016, 07:34:24 pm »
Hi Hofabooz,

Welcome aboard.  :)

It sounds as if the Owon will be capable of what you are describing. You need to remember that you are looking at a 100Msps sampling with an analogue SINE WAVE capability of 25MHz. Input rise time is spec'd at <14ns. What this means in practice is that you will be able to get a reasonable representation of a square wave of about a third of that, say, 8-10MHz. That sounds fine for standard RC servos and s/w toggled Arduino pins etc.

Hopefully I don't need to point out that for (rather) more money you could get a much more capable benchtop scope like the Rigol DS1054Z, but presumably you've taken that into account in your available budget. It's a shame the Pound has dropped, which is being reflected in prices of Chinese gear.

I would recommend that you also pick up one of those very cheap 8 bit logic analysers off ebay (preferably using it legally with open-source Sigrok Software). That would add very useful protocol decoding for serial I2C SPI (and PWM I think) to your test capabilities. The two in combination would give you a reasonable (but of course bandwidth limited) test setup.

Hope this helps,

Chris.

« Last Edit: August 08, 2016, 07:37:40 pm by Gyro »
Chris

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Offline Hofabooz

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #114 on: August 08, 2016, 08:36:19 pm »
Hi Chris


Thanks for the info I had looked at the Rigol and thought it was a very good piece of kit for the money however I did think the Owon would do most of what I wanted.
Would you recommend waiting a bit longer and saving up for the Rigol as I have patience and can wait a while longer for a scope as I have not owned one for a long time and having just stated with the Arduino platform felt I could do with one as programing a theory is all ok but when it meets the real world all can not bas as you think hence the thought of getting a scope.
Please advise.

Thanks Mark
 

Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #115 on: August 08, 2016, 08:55:01 pm »
Hi Mark,

Doh! You had to ask that question.  :palm: ...and on your second post too!  :D

Yes, I suspect that a majority of people on here would say (I can here the rattle of keyboards) that it would be better to wait and save for the Rigol, and they're probably right. At the end of the day I guess only you can answer that question for your particular situation.

Whatever you do, I'd probably go for the ebay logic analyser anyway. Even if you wait and go for the Rigol, it's so cheap that it's a no-brainer and will probably give you better protocol decoding with minimal function overlap and 8 channels.

Chris.
Chris

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Offline Hofabooz

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #116 on: August 08, 2016, 09:58:59 pm »
Hi chris

Thanks I will order the logic analyser and save some more for the scope sorry to ask the question but you know how it is sometimes you buy cheap and buy three times other times you can get away with it in this case I will wait and save as I think the  rial with serve for a long time.

Thanks mark
 

Offline plazma

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #117 on: August 09, 2016, 06:11:19 am »
If you are loking for a logic analyzer this version worked as specified and is supported by Sigrok (and Saleae SW).
http://www.aliexpress.com/item/USB-Logic-Analyzer-100M-max-sample-rate-16Channels-10B-samples-MCU-ARM-FPGA-debug-tool/1916810169.html
 

Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #118 on: August 09, 2016, 09:04:23 am »
Hi chris

Thanks I will order the logic analyser and save some more for the scope sorry to ask the question but you know how it is sometimes you buy cheap and buy three times other times you can get away with it in this case I will wait and save as I think the  rial with serve for a long time.

Thanks mark

Hi Mark,

Don't worry about the question, it's just one that comes up rather often  :). If you've got, or will have, the funds to go for the Rigol then it's undoubtedly the right thing to do. Most people buying the Owon do so because they can't fund or justify anything more expensive (or have some other specific requirement, eg, it's got to fit in the toolbag and you're already carying a laptop).

Good decision on the LA. If you want one locally then Hobby components on ebay has it...

http://www.ebay.co.uk/itm/Hobby-Components-UK-USB-24M-8CH-24MHz-Logic-Analyser-/161309221423?hash=item258ec7622f:g:qmkAAOSwiLdV7wWY

Chris
Chris

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Offline Hofabooz

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #119 on: August 10, 2016, 08:40:01 am »
Hi Chris

many thanks for the info item ordered.
I like the look of the interface and it will be most useful suspect I will make the most use of it initially.
As I have some issue with a serial data transfer via blue tooth between to Arduinos.
This item will be most useful in understanding the issues I'm having.

Thanks again

Regards

Mark 
 

Offline Radioman55

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #120 on: September 14, 2016, 01:08:10 am »
Hello!  First post on this forum, and heartfelt thanks to all for the discussion on this scope. It has cleared the air on so many questions that I had.  I have been refurbishing/restoring radios from the 30's through the 50's.  I've never used a scope but have had the desire to purchase one and learn how to use it, but do not want to spend an arm and a leg.  I do have a boat anchor (Sencore) scope which weighs 35-40 pounds, but like someone else in this topic, am not interested in acquiring a hernia this late in life.  To the point: what is the max input  voltage for the VDS1022I?  While I have a perefectly good VTVM and DVM to measure B+ from the power supplies, there will be times where I want to view a waveform or measure a frequency that may have upwards of 100V.  Will this scope do that?  I plan on using it with an old WIN 7 laptop.   Again, thanks to all who have contributed with your time!  Joe
Joe
 

Offline Dan`

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #121 on: September 14, 2016, 01:56:52 am »
from the specs page http://www.owon.com.hk/products_info.asp?ProID=175#sthash.M9FXzMQ5.0rImWmWH.dpbs

for the 22I

Quote
Max Input Voltage 400V (PK - PK) (DC+AC, PK - PK)

and for the 22 (non isolated version)

Quote
Max Input Voltage 40V (PK - PK) (DC+AC, PK - PK)

but im only new to this (only got mine a couple weeks ago) and this may be down to the probes specs? i bought the non isolated version because il only be using it off an old win7 laptop for 12v vehicle stuff.

HTH
 

Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #122 on: September 14, 2016, 09:58:43 am »
Welcome.

The input voltage spec is a little confusing, as the only difference between the non-I and the I is the USB isolation which is in the 'back-end' of the scope. The input sections are identical as far as I know. I suspect that the 400V spec is partly related to the USB isolation rating.

On that basis I would take the input voltage rating to be 40V (PK - PK) (DC+AC, PK - PK) relative to the ground clips for both. The scopes come with x10 scope probes which should extend the input range to 400V. I say 'should', because it's always a good idea  be wary of the insulation of low cost Chinese scope probes.

It sounds as if you're well versed in handling this sort of stuff with your sencore, but if you're doing tube HT stuff then getting a couple of x100 probes is always a good idea (whatever your scope).

Chris

P.S. If you're working on '30s to 50's radios then it's very likely that a lot of them are 'live chassis' (no mains transformer). Clearly this is a big hazard when connecting grounded test gear. I mains isolation transformer is probably the best way to make your setup safe - USB isolation (while breaking the ground loop) doesn't guarantee your safety as you can still touch live parts.
« Last Edit: September 14, 2016, 10:06:57 am by Gyro »
Chris

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Offline Radioman55

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #123 on: September 15, 2016, 12:30:05 am »
Thank you Dan & Chris.  I've never used the Sencore I have as it looked so daunting and it weighs more than my Mazda!  I hadn't thought about getting the x100 probes; I'll do just that.  The measure of safety will be worth the cost, as will an iso transformer which is on my short list of equipment needs.  I have generally been renovating non-AA5 radios, but I really do need to invest the iso transformer.  It would be kinda' nice living through my next 60 years. ;)   Chris, thank you for sharing your time and expertise in this, and so many other, posts.  :-+  It is great to have this site as a source for equipment/electronic reference, and all-round good conversation.  Cheers!

Joe
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Offline Gyro

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Re: OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
« Reply #124 on: September 15, 2016, 08:50:34 am »
Thank you Joe. Pleased to be able to help.  :)
Chris

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