Author Topic: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator  (Read 10941 times)

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Online Electro Fan

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #50 on: March 30, 2020, 04:11:54 pm »
Having a test equipment addiction is difficult when you don't have a lot of room.  The solution, only collect small adorable test equipment.

https://www.eevblog.com/forum/blog/eevblog-628-tektronix-213-vintage-portable-oscilloscope-teardown/msg467160/#msg467160
« Last Edit: March 30, 2020, 04:15:28 pm by Electro Fan »
 

Offline Messtechniker

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #51 on: March 30, 2020, 04:16:45 pm »
Yes, I have not seen the 962 anywhere. I will have to settle for the 932.

The 932 is also nowhere available. :palm:
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Offline JEntwistle

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #52 on: March 30, 2020, 04:45:11 pm »
It is still on Ali Express.   Maybe not available to ship to your country?
 

Online Mechatrommer

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #53 on: March 30, 2020, 10:02:45 pm »
the Original Link is not available anymore i've updated it available here ymmv...
https://www.aliexpress.com/item/4000418660874.html?spm=a2g0o.productlist.0.0.202a530e6QW8S4&algo_pvid=429f3531-dfec-4eaf-8706-b7e7a29e44e0&algo_expid=429f3531-dfec-4eaf-8706-b7e7a29e44e0-0&btsid=0ab6f82c15856056579587805e5121&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

Has anyone checked for voltage leakage?
as ataradov mentioned, leakage is not an issue. in fact i've probed the signal output without connecting the gnd pin, the signal is floating riding on some attenuated mains level leaked from my bench i guess. it proved this as free floating. once the gnd pin connected, everything is fine.
« Last Edit: March 30, 2020, 10:07:01 pm by Mechatrommer »
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Offline ataradov

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #54 on: March 30, 2020, 10:04:43 pm »
the Original Link is not available anymore i've updated it available here ymmv...
Still only shows UTG932E as available.
Alex
 
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Online Mechatrommer

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #55 on: March 30, 2020, 10:08:37 pm »
maybe interested buyers can contact and clarify with seller (UNI-T) since the title also includes UT962 (194 pieces) available, when clicking on UT932, 46 pieces available.
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)
 


Online Mechatrommer

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #57 on: March 31, 2020, 02:41:26 pm »
962 if you want to pay exorbitant prices:  https://www.aliexpress.com/item/4000703442149.html?spm=a2g0o.productlist.0.0.7d015adbeLS6FT&algo_pvid=95bf2620-7399-40b5-a316-29b9a4c8085c&algo_expid=95bf2620-7399-40b5-a316-29b9a4c8085c-0&btsid=0ab6fa7b15856635215657301e6629&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_
the price is doubled now its not so tempting already. it was about the original price in OP but 40% discounted. edit: the second link i updated in OP now N/A something is going on right now. maybe we should wait until it settled down.
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)
 

Offline JEntwistle

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #58 on: April 01, 2020, 01:33:00 pm »
Quick update in case anyone is interested in these.   The Uni-T store confirmed to me that the 962 is out of stock.  My 932 has shipped.   

Updated link.  Only 5 left (2 EU, 2 US, 1 UK plug):
https://www.aliexpress.com/item/4000418660874.html?spm=a2g0o.productlist.0.0.573a1ff2P3lz01&algo_pvid=b5c0b5a8-5444-4bb9-8d6d-4e16e0069a31&algo_expid=b5c0b5a8-5444-4bb9-8d6d-4e16e0069a31-0&btsid=0ab6f82415857496282737280e1b0a&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_
« Last Edit: April 01, 2020, 02:03:30 pm by JEntwistle »
 
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Offline KungFuJosh

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #59 on: May 22, 2020, 12:42:23 pm »
In case anybody is interested, there's more links for these at the "discounted" price: https://www.aliexpress.com/item/4000373256414.html

If you look at the sellers in the links in this thread, they're all some form of pretending to be UNI-T. I don't know if any or all of them are actually UNI-T selling this stuff. Maybe the "Official" one is, because it says official.  ;)

"UNI-T Official Store"
"UNI-T Factory Tools Store"
"UNI-T Speciality Store" (lol @ speciality)
Etc...

Since I'm impatient, and don't need even 30M, I'm just going to order the 932 on Amazon: https://www.amazon.com/gp/product/B0819W89DH/

Thanks,
Josh
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Offline KungFuJosh

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #60 on: May 23, 2020, 11:59:22 pm »
The UTG932E arrived today. I love how small it is. The Siglent SDG2042X I previously tried out was great, but it was huge and expensive, so I returned it. This thing is small and fairly well priced. Build quality, and signal quality were all good. I tried different signal types, different termination simultaneously, and it was all great (except for my learning curve where I made mistakes in the setup, and then fixed it lol).

You can see how small it is compared to my attenuator or scope:
[attachimg=1]

The signal was pretty clean too:
[attachimg=2]

[attachimg=3]

I dig it. It works well.

Thanks,
Josh
« Last Edit: May 24, 2020, 12:03:01 am by KungFuJosh »
"I installed a skylight in my apartment yesterday... The people who live above me are furious." - Steven Wright
 
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Offline Messtechniker

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #61 on: May 24, 2020, 08:55:11 am »
What's the software like?
Is there any documentation of a command list?
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Offline KungFuJosh

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #62 on: May 24, 2020, 06:58:21 pm »
What's the software like?
Is there any documentation of a command list?

If I ever try it, I'll let you know. I'm sure somebody will beat me to it though.

99% of what I'm going to use this for is feeding 1K sine waves into guitar amps or microphones. My main desire for this was the screen showing the amplitude, and the small size. Both are great. Amplitude is accurate, as is the frequency.
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Offline v.stefa

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #63 on: June 21, 2020, 02:56:28 pm »
What's the software like?
Is there any documentation of a command list?
Hello,

software and additional documentation is only available in the CD that comes with the UTG-962. I didn't find any similar software on the UNI-T web site.
Inside the CD you can find the USB and VISA 5.4 drivers. Once you install it you can access the device using a program called DeviceManager.
Through the DeviceManager you can execute a WaveFormEditor and a VirtualControlPanel. The first one is a nice/useful addition while the second one is no-sense program because it has no additional feature in respect with the front panel of the UTG962.
I am totally newbie with such devices and I am interested in finding a way to command/program the UTG (before I buy a Siglent SDG1104x-E oscilloscope). I would be glad if you could suggest me the correct way to have access to the device and try to send command to it (a link or other online resorurces will be fine).

Thank you very much
Enzo   
 

Online Mechatrommer

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #64 on: June 21, 2020, 03:09:08 pm »
software and additional documentation is only available in the CD that comes with the UTG-962. I didn't find any similar software on the UNI-T web site.
interesting. i dont remember mine come with a CD. can you post the zipped file here? the one i downloaded is chinese version from https://www.uni-trend.com.cn/index.php?m=content&c=index&a=show&catid=416&id=741 (4th or 5th column at bottom menu) and i cant understand a thing in the SW GUI (chinese characters). there is no downloadable SW yet from their english version website https://www.uni-trend.com/html/product/NewProducts/UTG900E%20Series/UTG962E.html
« Last Edit: June 21, 2020, 03:10:42 pm by Mechatrommer »
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)
 

Offline v.stefa

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #65 on: June 21, 2020, 04:05:19 pm »
File size is very big. I uploaded it on my dropbox.

https://www.dropbox.com/s/iufok0nz8g9lvcg/UNIT-UTG962.rar?dl=0

Regards
Enzo
 
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Online Mechatrommer

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #66 on: June 21, 2020, 07:00:02 pm »
thanks Enzo. hopefully there are something to play with later...
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)
 

Offline Johnny B Good

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #67 on: July 09, 2020, 10:05:12 pm »
Has anyone checked for voltage leakage?  The Feeltech units have had well documented ungrounded connections.
Leakage from where to where?

The unit takes external 5V DC supply, so it is fully isolated from mains.

 Only by as much as the 1nF Y class capacitor (typically used in all 5 to 10 W rated EMC compliant class II smpsu based wallwarts) keeps it isolated from half live mains voltage.  :palm: :palm: :palm:

 If you run it off a power bank from its USB output charging port, that'll give you the isolation you crave, otherwise forget it when using a cheap universal mains voltage wallwart with its half mains live 'touch voltage (1.6M ohm impedance at 50Hz connection to half of whatever your local supply voltage happens to be.

 The only virtue to using an external plug in 5vdc power source is that you can at least elect to use an earth protected 5v mains psu alternative to the now ubiquitous cheap commodity wallwart. The only issue with such earthed supplies is that the common ground return may also be connected to the protective earth pin which introduces unwanted mains earth loop noise and interference to any DUTs.

 A neat way to achieve the superb fix to this issue on the FY6600 (and its successors) which killed off this unwanted touch voltage without committing the sin of introducing the mains earth loop issue by the Feeltech idiots' spiteful fix to all the complaints that had been made by their FY6600 owners over this ESD hazard to DUTs is to obtain a suitable stout plastic project box, fit it with an IEC C14 mains socket, crack open a cheap wallwart to transplant its guts into said box and wire a 4k7 half watt or so resistor between the zero volt terminal on the DC output and the protective earth pin of the C14 socket.

 You can also embellish this side project with a mains indicator lamp (LED and a resistor across the 5v rail) and fuse according to taste but whatever the case, you will now be the proud possessor of a supply with less than 100mVAC leakage on its output with respect to ground on 240vac supplies without that troublesome low impedance ground loop to allow the free flow of unwanted interference (including unwanted random DC offsets) in either direction - that 4k7 resistor will attenuate such interference by some 40 to 60 dB or so.

 For those of a nervous disposition when it comes to cracking cheap 5v 1A wallwarts open to extract the smpsu board and wire it into a project case as described, there is a more disposable way to use the project box by adding a C14 socket as before along with a mains outlet socket and a DC jack socket (or three to widen your options) to plug in whatever 5v wallwart comes to hand for the job (swift swap out if the wallwart dies unexpectedly). You can either use another DC jack or else a suitably plug ended captive DC lead to match the DC jack of your cheap FG - your choice. The final task after wiring the C14 to the mains outlet socket is to connect that 4k7 resistor between the C14's PE tag and the zero volt connection of the DC output on the DC jack socket(s).

 The only downside to this solution is that the smpsu board remains confined by its original unventilated plastic housing (unventilated to minimise the risk of accidental liquid ingress). Plastic is famous for its poor thermal conductivity so that smpsu pcb has to tolerate very high temperature operation, high efficiency notwithstanding.

 Extracting the wallwart's cct board as per the first solution does offer the benefit of much cooler operation simply by virtue of the much larger surface area of the plastic project box used. An even cooler solution is to use a metal project box but you need to take more care in mounting the PCB and properly connecting the metal case to the C14's PE tag whist making sure the only connection between this earth and the zero volt DC output connection is via the 4k7 resistor.

 Anyway, there you have it. A few suggestions on how to eliminate the unwanted half live mains voltage ESD hazard to your DUTs when using such cheap "Toy FGs"  :) ;D ::)

JBG
« Last Edit: July 10, 2020, 08:54:58 pm by Johnny B Good »
 
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Offline Dd

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« Last Edit: July 27, 2020, 12:57:03 am by Dd »
 

Offline v.stefa

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #69 on: July 26, 2020, 10:08:20 am »
Hi,
thank you for the warning, it wasn't my intention to do it.
I am using Avira as well and it gives the same alert when I scan the file on the CD-ROM.
I am removing the share on the dropbox file unless I'll solve the issue,

Regards
Enzo
 

Offline Dd

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #70 on: July 27, 2020, 01:07:50 am »
v.stefa
Don't worry, your drivers image is near identical to what Uni-t shares on their website.
https://www.uni-trend.com/uploadfile/cloud/Software/Instrument-software/UTG900E%20software.rar
It doesn't mean that the official Uni-t drivers are clean from the viruses.

---

I was able to unpack Devices Manager Installer.exe, here is all contents of the installer for your inspection
https://easyupload.io/5bk5mn 30 days remaining
https://mega.nz/file/lnxyhSoS#iiYQhTb1ZJCcMvZ7f9O0h2l3KMa1LJCeYTKS8bri3VY alternative hoster


Another potentially infected files
\Devices Manager Installer\D375B41\dso\DSO Monitor Controller.exe
https://www.virustotal.com/gui/file/dd365e21e4c2fc7b10f4b1604037900ca01ff9581fc4a35c2ba2c81b7fdffb8f/detection

---

It seems "DriverPack_Libusb" and "VISA Driver 5.4" folders from "UTG900E software.rar" are just dummy folders and placed there just for legal reasons.
The real/used ones are sitting inside "Devices Manager Installer.exe"
"VISA Driver 5.4" =>
\Devices Manager Installer\Products <- Suspicious
\Devices Manager Installer\SupportFiles
\Devices Manager Installer\license

"DriverPack_Libusb" =>
\Devices Manager Installer\OS32Bit
\Devices Manager Installer\OS64Bit
\Devices Manager Installer\DriverApp.exe <- Suspicious
---

The next steps I am working on - contact other antivirus labs regarding DriverApp.exe and DSO Monitor Controller.exe

---

Update: Avira lab confirmed false positive for DriverApp.exe
https://www.virustotal.com/gui/file/9821f0615d185c2c5d6feaf9b1f2b348df980ccb0aa967375890ef7b81ddd1c3/detection

Besides opening a ticket with Avira I've also submitted file samples to Bitdefender, McAfee, Kaspersky, Emsisoft, DrWeb, Eset.
It seems they tend to mark these files as safe. The fresh VirusTotal scans gives far less alerts than it was one week ago.

I've yet to put my hands on the UTG932E version I've ordered from these guys on Ali. I hope to get most alerts from main AV companies resolved before I get the package from the post office. $105.80 - $3.90 coupon = $101.90, so the price is ok vs feeltech units.
« Last Edit: August 07, 2020, 08:12:42 am by Dd »
 

Offline Dd

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #71 on: August 18, 2020, 06:09:27 am »
Did you have any luck uploading arbitrary wave to this device?
I can't move beyond this screen
"Looking for device...
Number of devices found:0"
 

Online Mechatrommer

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #72 on: August 18, 2020, 06:51:05 am »
Same here.. its a joke.
It's extremely difficult to start life.. one features of nature.. physical laws are mathematical theory of great beauty... You may wonder Why? our knowledge shows that nature is so constructed. We simply have to accept it. One could describe the situation by saying that... (Paul Dirac)
 

Offline ataradov

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #73 on: August 18, 2020, 06:53:32 am »
I just assume that manufacturer software is broken, so as far as I'm concerned it just does not exist. So far this has served me well.
Alex
 

Offline Dd

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Re: UNI-T UTG932/UTG962 200MSa/s Function Arbitrary Waveform Generator
« Reply #74 on: August 18, 2020, 09:58:16 am »
I have had a chat with Uni-T sales rep from Ali shop I bought device from.
He has forwarded my messages and screenshots to their engineer back and forth. I ought to say the store support was really friendly.
There were some difficulties from automatic chat translations from Chinese. Anyway he's (or she?) been quite helpful, and kept bugging the engineer until I got a successful result, especially when I promised to post a device feedback on Ali and Amazon, heh.
And after few reinstalls and trials it seems I was able to upload waveform files to the unit.

My current config is a Chinese software version.
Now I'll try to move back to English s/w and make a few screenshots for the forum. Let's hope it works after another shuffling.
« Last Edit: August 19, 2020, 05:22:57 am by Dd »
 
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