Groupbuy for UNI-T UT210e clamp meter for tailcap current readings

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giorgoskok
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Can we still buy it ? Is groupbuy active ?

djozz
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I did a brief comparison of my subsequent methods of measuring the tailcurrent of a direct drive 4A flashlight. The subject was a BLF LS D80 (1A, dedomed) with BLF-A6 driver and a Samsung 30Q at 4.06V (so not completely fully charged). I found these currents:

-my Ansman mid-quality DMM with stock leads: 3.01 A

-same Ansman DMM with short thick custom leads: 4.21 A

-voltage over a 0.01 (1%) sense resistor: 46.1 mV

-UNI-T UT210e clamp meter with small device made of 1mm copper sheet: 4.58 A

I made a video of the test, showing how fiddly high current measurements was before the clamp meter, and that the clamp meter with the copper thing was easiest to work with and gave the most consistent result (it will be the device of choice from now on), but that the sense resistor method at least gave the same result, so is accurate as well. The DMM gave too low results even with short thick leads.

Btw, I think my DMM does not work well at the moment, only for a slight moment the correct current displays (I'm sure it gave the normal reading for those moments), most of the time the numbers displayed were all over place while the light out of the flashlight looked fairly constant.

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

FmC
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Nice comparison, Djozz.

Next time someone new to the hobby asks why they are only getting 2.7A out of their 3A driver, they can be linked to the video to see what difference the leads alone will make.

Can't wait for my clamp meter to turn up!

MRsDNF
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Nice djozz. Love the creativity on the adapter for the clamp meter.

My current and or voltage measurements are only relevent to anything that I measure.

Budget light hobby proudly sponsored by my Mastercard and unknowingly paid for by a hard working wife. 

djozz said "it came with chinese lettering that is chinese to me".

old4570 said "I'm not an expert , so don't suffer from any such technical restrictions".

Old-Lumens. Highly admired and cherished member of Budget Light Forum. 11.5.2011 - 20.12.16. RIP.

 

qandeel
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djozz wrote:

I did a brief comparison of my subsequent methods of measuring the tailcurrent of a direct drive 4A flashlight. The subject was a BLF LS D80 (1A, dedomed) with BLF-A6 driver and a Samsung 30Q at 4.06V (so not completely fully charged). I found these currents:

-my Ansman mid-quality DMM with stock leads: 3.01 A

-same Ansman DMM with short thick custom leads: 4.21 A

-voltage over a 0.01 (1%) sense resistor: 46.1 mV

-UNI-T UT210e clamp meter with small device made of 1mm copper sheet: 4.58 A

I made a video of the test, showing how fiddly high current measurements was before the clamp meter, and that the clamp meter with the copper thing was easiest to work with and gave the most consistent result (it will be the device of choice from now on), but that the sense resistor method at least gave the same result, so is accurate as well. The DMM gave too low results even with short thick leads.

Btw, I think my DMM does not work well at the moment, only for a slight moment the correct current displays (I'm sure it gave the normal reading for those moments), most of the time the numbers displayed were all over place while the light out of the flashlight looked fairly constant.

 

Thanks djozz for making the video. Would you be so kind to put in a new thread where we can find it faster for future reference. Many thanks.

 عُمَانْ

mhanlen
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I asked a few pages back. How do I get a code, and where do I buy it?

wight
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mhanlen wrote:
I asked a few pages back. How do I get a code, and where do I buy it?
I agree, that part is not very clear. The answer is that you must contact freeme. If you make a post in freeme’s group-buy thread requesting a PM about that deal you’ll get what you need.

Still taking a break. Smile
list of my drivers & variants (A17DD, FET+1 stuff, WIP stuff, etc)

mhanlen
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wight wrote:
mhanlen wrote:
I asked a few pages back. How do I get a code, and where do I buy it?
I agree, that part is not very clear. The answer is that you must contact freeme. If you make a post in freeme’s group-buy thread requesting a PM about that deal you’ll get what you need.

I did- post #626 2 days ago. I’ll just PM him then. Thanks!

djozz
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qandeel wrote:

Thanks djozz for making the video. Would you be so kind to put in a new thread where we can find it faster for future reference. Many thanks.

I have added it to the 'djozz tests' thread which is linked in my sigline

link to djozz tests 

“I used to think that top environmental problems were biodiversity loss, ecosystem collapse and climate change. I thought that thirty years of good science could address these problems. I was wrong. The top environmental problems are selfishness, greed and apathy, and to deal with these we need a cultural and spiritual transformation. And we scientists don’t know how to do that.”   (Gus Speth)

HighCaliber
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Thanks freeme. Made a purchase yesterday. 

mattheww
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Received mine today. Surprise, had batteries installed. not so good surprise: Chinese instructions & Warranty. Fortunately thanks to another poster a PDF is available for download.

Not so good part: thanks to USPS LastClass® Service it took longer to get from New York to Pittsburg than it did to get from Banggood in China to New York.

Thank you Freeme.

Meyer
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Yesterday my UT210E arrived, ordered mid-January.

I found a copper sheet 1mm thick and 11mm wide and bent a simple ring, not as nice as djozz did, but it does the job.
Copper bride and some Samsung INR 18650-30Q will arrive soon, for all flashlights which can handle 3A and more.

Thanks to Freeme and BangGood.

FmC
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Still waiting for mine to arrive – it’s currently circumnavigating the globe via Norway….

fran82
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Received mine today but I havent had time to play with it…

This post/thread "may" contain referrals, a little contribution I "earn" in form of points ONLY if you buy the item. The purpose is to redeem items using the points and then making reviews of them in the forums to shar

Hunter
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Got it today, it is way smaller than I expected.
Did anyone found english user manual? It says on product page that it comes with “English manual” but I only received chinese booklet!

jigsaw
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FmC wrote:
Still waiting for mine to arrive – it’s currently circumnavigating the globe via Norway….

I feel your pain. I ordered mine on February 3 and tracking still says:
“Item is not found at this moment, If necessary, please verify with the package sender and check back later”

Gj
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Hunter wrote:
Got it today, it is way smaller than I expected.
Did anyone found english user manual? It says on product page that it comes with “English manual” but I only received chinese booklet!

www.uni-trend.com/uploads/soft/wanyongbiao/UT210C.D.E-English%2520Manual...
Hunter
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Gj wrote:
Hunter wrote:
Got it today, it is way smaller than I expected.
Did anyone found english user manual? It says on product page that it comes with “English manual” but I only received chinese booklet!

www.uni-trend.com/uploads/soft/wanyongbiao/UT210C.D.E-English%2520Manual...

thanks but that one did not work for me, I googled this http://www.pinsonne.de/media/daten/UT210C.D.E-English%20Manual.pdf
1dash1
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Hunter wrote:
Gj wrote:
Hunter wrote:
Got it today, it is way smaller than I expected. Did anyone found english user manual? It says on product page that it comes with “English manual” but I only received chinese booklet!
www.uni-trend.com/uploads/soft/wanyongbiao/UT210C.D.E-English%2520Manual...
thanks but that one did not work for me, I googled this http://www.pinsonne.de/media/daten/UT210C.D.E-English%20Manual.pdf

That’s the one I downloaded, too.

http://www.pinsonne.de/media/daten/UT210C.D.E-English%20Manual.pdf

Rule 1-1 as it applies to life, take it as it comes.

Meyer
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For german speaking folks: Google(bedienungsanleitung ut210e) is finding a detailed manual.
The delivery of my UT210e included the english manual.

Lazy-R-us
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I got mine Thursday and had the same “wow it is small!” thoughts. Happy with the meter and used it this evening to teach one of my Robotics team members a little bit of battery care and troubleshooting. It is small enough to ride in my cargo pants pocket during our competition Saturday morning for quick access.

Thanks for the opportunity!

Lazy-R-us

chadvone
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Hey guys, I was late to get on this group buy. Got a email from BG saying it was out of stock and expected to restock Feb 19th. They gave me 3 options . Wait, store credit, or refund.

First I think it is great of BG to offer the group buy and notify me the out of stock issue and give me options.

My question to UNI-T UT210e owners.

1. Is it worth waiting for ?
2. How easy is it to use? I know nothing about amp readings.
3. Does it seam accurate ?

pilotdog68
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I think it’s great to have. The only thing it’s missing is ability to measure the tiny tiny currents by the leads instead of the clamp, but I have a traditional DMM that can handle that for me.

I would say it’s worth getting, and 4 days isn’t that long to wait if they are right on their restock date.

My Favorite Modded Lights: X6R, S8 , X2R , M6, SP03

Major Projects:  Illuminated Tailcap, TripleDown/TripleStack Driver

chadvone
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Thanks PD. I will click the wait for restock button. That will give me time to figure out how to use it. I found a few video’s on it I need to check out.

Ok, I clicked wait for restock and BG page pop up with this.

Expected arrival time:2016-02-19 00:00:00
With dual-layer, super strong and durable but ultra lightweight,Absolutely can not twist, tangle, or kink,Automatically expands up to 3 times its size when water is turned on,Automatically contracts back in just seconds when water is turned off,Great water pipe for family use or build use

Wow, sounds like I just ordered a garden hose.

wight
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@pilotdog68 – I’m glad that you brought this topic up. The UT210E seems like a great deal with the group buy price (and a good deal even without it). I just broke down and ordered a pair.

Still taking a break. Smile
list of my drivers & variants (A17DD, FET+1 stuff, WIP stuff, etc)

OscarM
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I got mine today. Was there any function for keeping the highest value on the display?

FmC
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Mine arrived yesterday. Will be testing out a few lights this weekend.

antiparanoico
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Mine arrived yesterday with batteries inserted. Shipped via NLPost.
Thanks!!!

If anything can go wrong, it will.
Matter will be damaged in direct proportion to its value.

unknown00101
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Done Blow’d up my dmm… went ahead and placed an order for the 210E. Silly

What are you guys using for the loop? I’ve seen piece of copper, and 12awg, anything else?

I thought I might use some 10/12awg silicone wire, solder a magnet on one end and leave the other end bare but solder the exposed tip to keep it tidy.

Henk4U2
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I’m using a piece of 3 × 1.5mm.sq power cord, twisted and soldered at the end. That is roughly the equivalent of 10/11awg. rapidtables.com

I always think long and hard before I say something really stupid.

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