OWON HDS272S Handheld Oscilloscope Review - Part 2
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- Опубліковано 28 лип 2021
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In this video:
OWON HDS200 Series Digital Oscilloscope:
www.owon.com.hk/products_owon...
+ Oscilloscope + multimeter + waveform generator, multifunction in one
+ 3.5-inch high-resolution, high-contrast color LCD display, suitable for outdoor use
+ 18650 lithium battery, comprehensive power consumption ≤3W, can work continuously for about 6 hours
+ USB Type-C interface, support power bank, support PC software connection
+ Self-calibration function
+ SCPI supported, facilitate secondary development
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Martin,
My heartfelt thanks. I recently bought the Owon HDS272S and was a little bit underwhelmed by the owners manual. As a retired mechanical engineer who graduated from college 40 years ago, my oscilloscope experience was limited at best, suffice it to say I am a beginner.
Your videos on the unit where the most helpful out there and believe me I have watched a lot. You broke it down such that it was sufficiently technical, but not overwhelming. As a result, I can find my way around the scope and use it as I had hoped I would.
The generosity of UA-camrs continues to amaze me and you rank right up there. I would've been lost without your help.
Kevin
This is the best exploration of this device I have seen. Always great to have a reviewer take the time to learn a tool before putting out a video. Thanks!
Got one a couple of weeks ago and here I am watching your review again. I just want to say thank you for the review, it is extremely helpful.
i am impressed by a detail review like this one too, great work !
Great demo. I just ordered one today. Thanks for posting the great video. Well done.
Barry
Hello Mr Martin.
I deal with electronics as an amateur. I know very little about oscilloscopes. I was looking at this brand of oscilloscope with some suspicion. After your detailed explanations in the video, it became clear how stable the device is.
Your work is very valuable to us, we look forward to continuing it.
Now that was what I call thoroughly! By far the best review of that device I've seen so far. Very helpful indeed!
A big thumbs up and thanks alot from Germany!
Interesting piece of kit, I did notice in the first part of the scope demonstration that the battery level indicator was jumping up and down like a yo-yo, and I don’t think it was on charge.
Many thanks.
Really good review I just bought one to make some floating measurements easier than getting out the isolation transformer or differential probes
Thanks for a very thorough and useful review.
Nice review, thank you
I have the 40MHz version of this scope without the SG, and think it's really nice unit considering the price of just USD 119.99 (April 2021)
The screen is large enough to be useful, the Multimeter is accurate and easy to use, and it feels like a quality unit.
But I do have seen some oddities with mine.
If I have a signal on the screen, and move it up and down, it changes shape (or rather interfere) with the graticules as it passes over them.
On Channel 1 the signal now is always stuck 2 graticules over the 0volt line, regardless of what Volts/Division it's set at.
Resetting it to factory settings doesn't fix this, but removing the two 18650 cells do make it ok again.
But then it reverts back to the same fault a short time after that.
Resetting it like this sometimes also makes it start up with a Simplified Chinese UI, and that can be a challenge ;-)
It doesn't look like it's possible to update the Firmware on it, so I might need to have it replaced.
Have you tried calibrating it again after 30-60 minutes when it's already warmed up? Or, did you replace the device with another one that does not have this problem?
Regarding the square wave, it should be noticed that the signal generator is a general purpose synthesizer rather than a pulse generator.
I had an interesting experience purchasing the 40MHz version from Amazon. The display was in Russian. I returned it and rebought the 70MHz version and all is well.
I recently bought the HDS272S, played around and kept seeing some annoying DC offset in almost all vertical scale settings. I got very worried at first but fortunately there was an autocalibration under system button menu that compensates for that! I am really impressed by the device. I certainly love the responsiveness during navigating but also during scope & multimeter operation. Great & portable!
Hi. In my hds242 I have voltage drift while the device is warming up. Drift is most visible when we run a cold scopemeter, and we calibrated it earlier, e.g. after 0.5h. The voltage drift stabilizes in about 30 to 60 minutes (depending on the ambient temperature) and then you can recalibrate. The manufacturer mentions this in the instructions. A change in the "ambient" temperature by 5 degrees (including the internal components of the device) requires re-calibration of the owon.
Appreciate your thoughts and details on the tradeoffs for this model. Just ordered a unit.
Interesting first product. 250MS/s is real speed. Laptop lithium cells is good too and about time. It seems to me you could easily have some little range button on it, an 'analog' up/down knob (not turn) that would make range adjustment very responsive. I think I would also reduce the button area to just 20% of the screen space and rely on soft buttons. More like a tablet form factor. In product design, always question convention. A new tech doesn't need to look like a fluke from 1980. The first cars were styled like horsedrawn carriages as a mindless product of status quo. Always design from reason. That way you might skip 20 years.
Great video. Please do a video on owon hds272s software demo showing Windows PC features when connected to Scope.
Good
Got this for combo size, and it is more than I hoped for. Quicker to operate than expected. The high update rate with peak detection acquisition mode, shows glitches other scopes don’t. Highly recommended.
So with the smaller scope I don't see a voltage scale. So say a signal fluctuates 5v to 0v square wave, how are you able to tell? There's no numbers on the scale
I have one and like it.
If I may suggest, there is an article style called inverted pyramid, should really be called pyramid. The idea is to cover the full story quickly in highlights and then do successive iterations of longer and longer time with deeper insight. That way at any point the viewer feels fully informed. As you did it here it took 30 minutes to get to any oscilloscope function. Makes sense?
For the first iteration you can show the scope in operation, say it's actually 250MS/s on one channel so the 70MHz isn't bs. You can show it isn't antialiased display and whether the firmware is actually usable or not, same with the buttons. Also 20000 count meter. Maybe also different intro than the 4:3 lores pure text screens. I know you are a big fan of my constructive comments so I'll end here :) it really is for your benefit though.
Your first link into the amazon store is not working.
Great review, as always.
Cheers from Oz.
On the signal generator it says high Z on the top of the menu is there and option to make the output low Z 50ohm for example. Thanks regards Chris
Really complete review. I don’t think I will be able to add anything
Can you change channel scaling/units to (more easily) accommodate a current clamp?
What owon should have done is just make scop with the signal gen. With out the multy meter. Or give you the choice. I'm after a small scope and the scope in the owon looks very impressive.
The meter is easier to add as a scope is effectively just a really fast volt meter with a time-base/logging component. A few tweaks and you can also measure resistance, current, capacitance, etc. It may not be the best meter in the world, but it's really nice to have most of the tools most people need for most jobs all in one package.
@@evankolpackif you've looked at any of the tear downs of this scope, all of that is preformed by different components. I think you'll find that making a multimeter out of the oscilloscope sampling would make a poor multimeter. Compared to some of the multimeters I use, this one is actually a step up.
There is a new one , the OWON HDS2102S , its basically the same but its faster ( Doubbled ) and has a higher Bandwith , it goes up to 100 Mhz , it seems its well worth the addional 20-30 $
The latest one now goes to 200 mhz.
Hey can you recommend a device that measures thd with oscilloscope?
Hi, please do u know if cursors can be use in simple trigger, or pictures saved.?
Sir how much mhz oscillioscope require for led tv repair .is owen capable of repairing general cnc machines of industry.6000 count display than 9000 count display is more important utility or not in led tv repair purpose. Ur video seems true analysis free from advertise mixture.thanks again hope u may get time to reply
Thanks for this vidéo, I want to ask you if we can invert a signal , and do math functions as other digital strorage oscilloscope ?
Please what is the meaning of max 400v Pk-PK can I use it to read a 250v Ac power
The square wave output isn't very good. Those little bumps and the rise and fall times are pretty bad, but if you need a LF square wave for a quick test, it will do ok.
Of course, it isn't a $800 function generator either.
The overall accuracy of the DMM isn't very good either... sad.
Does it have anti aliasing in the scope section? It didn't appear to when you were slowing down the timebase with high frequency.
I guess for the price, it is handy.... just don't use it for precise measurements.
Once again, thank you for your review!
Can you record what screen is displaing on sd card or pendrive?
Does this thing need an attenuator for automotive use?
If you have the opportunity in the future, then make a review on DSO1511E or DSO2512G, as well as compare with OWON HDS272S
Is it accurate enough to measure broken wires?
what is standby current consumption?
Does this scope show a VRMS reading ? In your video it's showing only VPP.
hds242 doesn't show the Vrms value for the oscilloscope, probably the hds272 doesn't either.
How does this compare to hds2102s
Hello engineer, good time, dear friend, why don't you activate subtitles, I want to read your clips with Farsi subtitles, thank you for doing this.
I someone want a Manual in german, try that from the VOLTCRAFT DSO-2072H
Conrad change only the colour of the case ^^
The worst part of the oscilloscope : there is no "voltage RMS" on measure. Pk to Pk, min, max, freq..etc, Ok but what about voltage RMS measure !!!! are you kidding me Owon's guys? How such à big mistake ? And why don't you talk about it ?
In the first part of the review, I feel you wasted a lot of time criticizing the 'ramping behavior' over and over. To me that is a minor fault, not the show stopper you make it out to be. It would be better to have just one review video.