Author Topic: Uni-T UT181A pictures  (Read 41822 times)

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Offline iloveelectronics

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Uni-T UT181A pictures
« on: August 20, 2014, 03:10:40 am »
I've got this latest Uni-T DMM for a few weeks now but never really had the time to play with it properly. I know some of you have been waiting to see more of it so I thought I would post a few quick pictures first.
My email address: franky @ 99centHobbies . com
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Offline iloveelectronics

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Re: Uni-T UT181A pictures
« Reply #1 on: August 20, 2014, 03:17:41 am »
A few more pictures of it measuring some DC voltages.

First impressions:
1. Very well built - Feels very solid. All screws for the housing have metal threaded receivers. PCB looks tidy. Properly rated ceramic fuses.
2. Lovely display
3. Accuracy well within specs - At full scale (it's 60,000-count), assuming my 6V reference and 34461A are accurate, it's only 0.011-0.013% off. It's spec'ed to 0.025%+5d in that range.
My email address: franky @ 99centHobbies . com
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Offline PedroDaGr8

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Re: Uni-T UT181A pictures
« Reply #2 on: August 20, 2014, 03:17:59 am »
Wow looks surprisingly good. I think it might actually meet the CAT ratings on the front.  :box:

Some of the other companies had better be a bit scared.
The very existence of flamethrowers proves that some time, somewhere, someone said to themselves, "You know, I want to set those people over there on fire, but I'm just not close enough to get the job done." -George Carlin
 

Offline retiredcaps

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Re: Uni-T UT181A pictures
« Reply #3 on: August 20, 2014, 03:32:05 am »
Hi Franky,

Thanks for the photos so far.

If that is a Cyrustek ES51997

http://www.cyrustek.com.tw/spec/ES51997.pdf

can you confirm if the display update is 2/seconds?
 

Offline iloveelectronics

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Re: Uni-T UT181A pictures
« Reply #4 on: August 20, 2014, 03:38:14 am »
Hi Franky,

Thanks for the photos so far.

If that is a Cyrustek ES51997

http://www.cyrustek.com.tw/spec/ES51997.pdf

can you confirm if the display update is 2/seconds?

Yes, that's one of the downsides. The display update rate is not great, 2 times per second looks about right, similar to the UT61E.
My email address: franky @ 99centHobbies . com
My eBay store: http://stores.ebay.com/99centhobbies
 

Offline retiredcaps

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Re: Uni-T UT181A pictures
« Reply #5 on: August 20, 2014, 03:53:20 am »
I wonder if the CR2032 cell is a nod/wink to Fluke's 289 supercap?  :-DD

edit: Franky, do you think the CR2032 lithium cell is going to pose problems with shipping?
 

Offline iloveelectronics

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Re: Uni-T UT181A pictures
« Reply #6 on: August 20, 2014, 03:57:49 am »
I wonder if the CR2032 cell is a nod/wink to Fluke's 289 supercap?  :-DD

LOL!

Quote
edit: Franky, do you think the CR2032 lithium cell is going to pose problems with shipping?

Both that and the Li-Po main battery pack are going to be problematic. At this point I'm still unsure I'll ever carry this product. There are alternative shippers than Hong Kong Post to ship products with lithium batteries but the costs are a lot higher, and may require paperwork and stuff like that.
My email address: franky @ 99centHobbies . com
My eBay store: http://stores.ebay.com/99centhobbies
 

Offline IGNT

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Re: Uni-T UT181A pictures
« Reply #7 on: August 20, 2014, 04:38:45 am »
Wow, a new DMM UNI-T UT181  looks  so great,  franky.   :D
 

Offline IGNT

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Re: Uni-T UT181A pictures
« Reply #8 on: August 20, 2014, 04:45:36 am »
Hi Franky,

Thanks for the photos so far.

If that is a Cyrustek ES51997

http://www.cyrustek.com.tw/spec/ES51997.pdf

can you confirm if the display update is 2/seconds?

Thanks for detailed schematics sharing,  Mr. "retiredcaps"

Regards

IGNT
 

Offline leppie

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Re: Uni-T UT181A pictures
« Reply #9 on: August 20, 2014, 04:58:55 am »
Looks very nice, but at $300, I'll stick to my $60 61E :)
 

Offline omgfire

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Re: Uni-T UT181A pictures
« Reply #10 on: August 20, 2014, 05:20:10 am »
Looks very nice, but at $300, I'll stick to my $60 61E :)
Let's wait for UT171 prices.
 

Offline NANDBlog

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Re: Uni-T UT181A pictures
« Reply #11 on: August 20, 2014, 11:13:38 am »
PCB design looks decent.
But what is it with the soldering near the left banana socket?
Also, we hate those OLED screens. Do they really have to copy something even if it is bad?
 

Offline iloveelectronics

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Re: Uni-T UT181A pictures
« Reply #12 on: August 20, 2014, 11:45:11 am »
PCB design looks decent.
But what is it with the soldering near the left banana socket?
Also, we hate those OLED screens. Do they really have to copy something even if it is bad?

That's flux residue around the banana socket, not a deal breaker for me :) I actually think the OLED screen makes sense on this particular DMM because of the graphing functions for the data logging.
My email address: franky @ 99centHobbies . com
My eBay store: http://stores.ebay.com/99centhobbies
 

Offline BravoV

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Re: Uni-T UT181A pictures
« Reply #13 on: August 20, 2014, 05:23:10 pm »
I wonder if the CR2032 cell is a nod/wink to Fluke's 289 supercap?  :-DD

Spot on !!  LOL ...  :-DD

Attached below, just in case someone curious it's front face vs Fluke 28x.  >:D  .. hope you don't mind Franky.

Offline PedroDaGr8

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Re: Uni-T UT181A pictures
« Reply #14 on: August 20, 2014, 05:29:24 pm »
I wonder if the CR2032 cell is a nod/wink to Fluke's 289 supercap?  :-DD

Spot on !!  LOL ...  :-DD

Attached below, just in case someone curious it's front face vs Fluke 28x.  >:D  .. hope you don't mind Franky.

Wow that's more than a passing resemblance. They very much outright copied the layout. They might end up with a design patent lawsuit if they aren't careful.
The very existence of flamethrowers proves that some time, somewhere, someone said to themselves, "You know, I want to set those people over there on fire, but I'm just not close enough to get the job done." -George Carlin
 

Offline SeanB

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Re: Uni-T UT181A pictures
« Reply #15 on: August 20, 2014, 05:42:53 pm »
Only so many ways to lay stuff out on a front panel that is half display. Plus it is not yellow on grey.
 

Offline Maxlor

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Re: Uni-T UT181A pictures
« Reply #16 on: August 20, 2014, 05:45:49 pm »
Can you say anything yet about how the battery performs? How long does it run on a charge? And are the banana jacks really the only way to charge it, or is there some other way to run it off mains power for extended data logging periods?
 

Offline Wytnucls

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Re: Uni-T UT181A pictures
« Reply #17 on: August 20, 2014, 06:33:15 pm »
Naw, it's not yellow...

At least the CEM equivalent is vastly different:  ::)

« Last Edit: August 20, 2014, 06:36:31 pm by Wytnucls »
 

Offline iloveelectronics

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Re: Uni-T UT181A pictures
« Reply #18 on: August 21, 2014, 02:20:35 am »
Can you say anything yet about how the battery performs? How long does it run on a charge? And are the banana jacks really the only way to charge it, or is there some other way to run it off mains power for extended data logging periods?

I haven't tested the battery performance, nor have I measured power consumption yet. Will try to do that when I get a chance. And yes, the charging can only be done through an adapter that plugs into all 4 of the banana plugs. There's no other DC socket on the DMM into which the wall wart (10VDC) that comes with the package can plug directly. But seeing that the battery pack plugs onto the PCB through a common XH-style connector, it looks easy enough to hack it and make your own mains powered power supply for long term logging.
My email address: franky @ 99centHobbies . com
My eBay store: http://stores.ebay.com/99centhobbies
 

Offline MCCSolutions

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Re: Uni-T UT181A pictures
« Reply #19 on: September 15, 2014, 07:25:36 am »
Thanks for the info and tear-down for this Multimeter.

I actually just purchased it off of AliExpress for $200. :
http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html]
[url]http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html
[/url]

I have stalked the EEVblog for a long time lol, finally made an account.

I will likely do a video review of some sort later with detailed info on battery life etc, if you dont get a chance to do so!  :-+
 

Offline iloveelectronics

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Re: Uni-T UT181A pictures
« Reply #20 on: September 15, 2014, 07:29:31 am »
Thanks for the info and tear-down for this Multimeter.

I actually just purchased it off of AliExpress for $200. :

[url]http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html]http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html]
[url]http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html
[/url]

I have stalked the EEVblog for a long time lol, finally made an account.

I will likely do a video review of some sort later with detailed info on battery life etc, if you dont get a chance to do so!  :-+

Did you mean $300 and not $200? Go ahead and do the review, please!
My email address: franky @ 99centHobbies . com
My eBay store: http://stores.ebay.com/99centhobbies
 

Offline Wytnucls

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Offline MCCSolutions

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Re: Uni-T UT181A pictures
« Reply #22 on: September 15, 2014, 11:53:44 pm »
Thanks for the info and tear-down for this Multimeter.

I actually just purchased it off of AliExpress for $200. :

[url=http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html]http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html]
[url]http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html]http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html]http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html]
[url]http://www.aliexpress.com/item/Digital-Multimeters-UT181A/1993504336.html
[/url]

I have stalked the EEVblog for a long time lol, finally made an account.

I will likely do a video review of some sort later with detailed info on battery life etc, if you dont get a chance to do so!  :-+

Did you mean $300 and not $200? Go ahead and do the review, please!

Nope $200! That is a wholesale website I use, I never pay retail  :P The listing I linked is the one I purchasedm they changed the price afterwards. I paid something like $214 after shipping, I will post the invoice in a while
 

Offline MCCSolutions

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Re: Uni-T UT181A pictures
« Reply #23 on: September 16, 2014, 12:09:08 am »
Ok yep, so I was luckey enough to get it at that price before it changed. The seller said that it has been increased to $250(Looks like $300). Here is my order and the message from the distributor:

 

Offline onlooker

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Re: Uni-T UT181A pictures
« Reply #24 on: September 16, 2014, 12:25:07 am »
Quote
I was luckey enough...

It looks to soon to claim luck. The tone of the seller indicated just the opposite. He was backing out of the deal, or at least was asking for an additional $50 to really finish off the deal.

 
« Last Edit: September 16, 2014, 12:31:16 am by onlooker »
 


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