OWON HDS 200 Handheld Oscilloscope w/ builtin DMM/AWG

[NathanFulton]

I have this version

Update Osciloscópio

Model: HDS272S
SN: 2146xxx
Version: 4.6.2
MAIN V2.1

https://app.box.com/s/h6vcyczfnft1hih4z47wgo76lu6a053p

I upgraded my HDS272S - MAIN V2.1 - 2141xxx from v4.1.0 to v4.6.2 no problem! Thanks a bunch!

[wenesga]

Message from OWON

Please go to our website to look for latest firmware, https://www.owon.com.hk/download
If you can't find  the latest firmware for your scope, the reason is your firmware already the latest, or for your HDS scope, it is latest base on the main board, for example, if your scope is V2.0, it can't update to V3.0 because the main board is different.

[Suzook]

Looking for a basic osc for testing a few vintage stereo receivers. Strictly hobby. Will the 40mhz version be fine for that?

[tly]

for testing a few vintage stereo receivers.

... an old 20/40 MHz analog oscilloscope might be a better option.

[miegapele]

Finally found the SCPI example in this thread posted by eti. Tried to test various DMM commands, unfortunately for me, nothing works.
Did an improvement to that script to continuously update data.

[sheri99]

Hi, everyone! I'm new here and I hope I'm posting this question in the right place. I intend to buy the Owon HDS242S. However, I was wondering if I would be able to use the oscilloscope function and the wave gen function at the same time.

For example, if I wanted to use the wave gen to output a 10kHz sine wave into my circuit and measure the output of my circuit on the oscilloscope, would I be able to do that with the HDS242S?

[miegapele]

Yes, you can do that without any issues. I guess you could in theory even use multimeter at the same time

[oldo439]

Hi. I have OWON HDS272S, PCB Version: 3.0 (2021-09-27), SN: 2148 ***
I was looking for a new firmware at:
https://www.owon.com.hk/download.asp?category=Digital%20Oscilloscope&series=HDS200%20Series&model=HDS272(S)&SortTag=Latest%20Firmware
First I entered V5.0.0, found the latest version of V5.7.1.
Then I tried to enter V6.0.0 and found V6.1.0.
Nothing was found when entering V7.0.0. So the latest version is 6.1.0. And its for all HDS200 variants.
Has anyone tried it yet?

[skander36]

For me having V5.7.1, 6.1.0 it's not working.
It said "update error".

[oldo439]

Thanks a lot. I assumed they couldn't be combined. Whoever has firmware series V5 cannot upload another series of firmware, ie V6 or V4.

And BTW, there is new version of software DS Wave.
DS_Wave_HOS_1.2.5.v20220429_Setup.exe

Version before:
DS_Wave_HOS_1.2.4.v20220114_Setup.exe

[Suzook]

for testing a few vintage stereo receivers.

... an old 20/40 MHz analog oscilloscope might be a better option.

I can't find an old osc for less than this brand new. Why would an old analog be better? Not arguing, just looking for advice.

[HarleyYan]

I get my HDS242S today, the firmware version is V5.7.1 and the HW version is V3.1
when I test AWG function, the waveforms for 'Sine' and 'Ramp' looks like OK, but waveforms for 'Square', 'Pulse' and 'Arbitrary' are very strange.
I connect probe to crocodile clip directly when I test.
Is there something wrong with my HDS242S?

[tly]

I can't find an old osc for less than this brand new. Why would an old analog be better? Not arguing, just looking for advice.

Digital scopes are measuring the input signal in different points and the displayed wave form is approximated using math algorithms based on measured values.
In User Manual of HDS is stated that "sin(x)/x" formula is used for waveform interpolation.
Let's assume the device measures the input signal in 2 consecutive points A and B. The points between A and B will be draw on display using something like "sin(B-A)/(B-A)".
So, the displayed wave form is not the exact wave form the of signal.
If is any glitch between point A and B, it wil not be displayed.

When using an analog scope, the displayed wave form is (almost) acurate and will show that glitch.

-------------
Might help (a screen capture of comments attached ) :


Just for reference:
https://www.ebay.com/itm/175287845576
https://www.ebay.com/itm/175228776929

[skander36]

HarleyYan, try to use a direct cable (50 ohm), or at least put the probe tip directly to the output through an adapter.

[Suzook]

I can't find an old osc for less than this brand new. Why would an old analog be better? Not arguing, just looking for advice.

Digital scopes are measuring the input signal in different points and the displayed wave form is approximated using math algorithms based on measured values.
In User Manual of HDS is stated that "sin(x)/x" formula is used for waveform interpolation.
Let's assume the device measures the input signal in 2 consecutive points A and B. The points between A and B will be draw on display using something like "sin(B-A)/(B-A)".
So, the displayed wave form is not the exact wave form the of signal.
If is any glitch between point A and B, it wil not be displayed.

When using an analog scope, the displayed wave form is (almost) acurate and will show that glitch.

-------------
Might help (a screen capture of comments attached ) :


Just for reference:
https://www.ebay.com/itm/175287845576
https://www.ebay.com/itm/175228776929

https://www.ebay.com/itm/265573331684?hash=item3dd56772e4:g:lQsAAOSwWc1iHixz
Thoughts?

[tly]

Is there something wrong with my HDS242S?

You're scope is fine; those signal shapes are due to bandwidth limitation.

Thoughts?

It has 1mv/div so it should be fine.
(output signal of a magnetic turntable cartridge is around 5mV.)

[KyleK29]

Figured I'd throw my device info into the mix.


Model: HDS242
SN: 22044xx
Firmware Ver: V.5.6.2 [that came on the scope]
HW Ver: 3.0.1
Production Date: 2021-11-30

Board Picture:

I did take a swing at upgrading to the v.6.1.0 firmware with no luck (throws an Error Code 4).

[HarleyYan]

HarleyYan, try to use a direct cable (50 ohm), or at least put the probe tip directly to the output through an adapter.

I bought a 50 ohm BNC direct cable and get it today, then, I do a same test, but get same result as before . FYR.

[HarleyYan]

Is there something wrong with my HDS242S?

You're scope is fine; those signal shapes are due to bandwidth limitation.

Thanks for you explain, it looks like I should set the frequency lower than 1Mhz to get an acceptable waveform in AWG function.
the highest frequency of AWG function is only on paper.

[skander36]

HarleyYan, try to use a direct cable (50 ohm), or at least put the probe tip directly to the output through an adapter.

I bought a 50 ohm BNC direct cable and get it today, then, I do a same test, but get same result as before . FYR.

For me the red zones (from pics attached) show a noise in the signal that can come from the wires.  I thought you was refering to this noise ...
Clamps attached to the tips is not the best way  to test acuracy of the waveform.

[NoMoreMagicSmoke]

Adding internal pictures of my 2102S with a different PCB layout. Can't say I am impressed by the battery bodge job where the jumpered both battery negatives together. I see that they populated both BRCL3130MEbattery protection chips (https://datasheet.lcsc.com/szlcsc/2001131003_Shikues-BRCL3130ME_C475652.pdf), so it's weird that they jumpered both together.

[oof]

Long time lurker.

Been looking for a handheld and looks like the HDS2102s fell to $199 (Amazon prime day sale?). I'll be giving it a shot, seems like a no brainer for less than the HDS272S? Figured I'd let the forum know too.

[tly]

looks like the HDS2102s fell to $199

Owon launched the hds300 series (hds307s and hds310s).

[Markus2801A]

looks like the HDS2102s fell to $199

Owon launched the hds300 series (hds307s and hds310s).

Would be interesting what they changed besides the color of the case and the 30MHz signal generator.
The technical overview on both models are unfortunately not equal (regarding feature listing) so not good to compare:

https://owonna.com/products_owon_hds300_series_digital_oscilloscope
https://owonna.com/products_owon_hds200_series_digital_oscilloscope

[tly]

I'll not start (again) to analize hds200/hds300 product (btw: my bug list has 2 more bugs).
I'll just post this:
- a russian tester/reviewer stated in last 45 secs of his review of hds272s that cleaning the motherboard helped to get more acurate measurements;
- in hds300 presentation (on Owon site) they stated you'll get 6 hours of use. That makes me lough.
If you take out the 18650 cells sold with unit - btw: the cells presented on product page are Panasonic NCR, but you'll get some cheap chinese cells - and use those cells in a power bank and feed the device using USB, you'll get around 8 hours of use.
And that is strange. Even the hds300 series is presented with 6 hours of use, I still can say "the one that designed the power part of this device is a moron."

/my 2 cents