UNI-T UTR2811E/UTR2810E LCR meters - Page 1
Forum section: electronics / testgear

author: coromonadalix
author_rank: Super Contributor
timestamp: May 22, 2025, 04:14:17 pm
content: theses seems pretty new,haven't seen them today on uni-t main siteBoth seems 10khz models ??the 10E seems to have the handler and rs232 portsBut the new case psu look a like ...Who's gonna be the : 1st dont power it take it apart ...

author: mawyatt
author_rank: Super Contributor
timestamp: May 22, 2025, 05:06:55 pm
content: Why would UNI-T design a LCR meter with the BNCs in that configuration??This defeats all the somewhat standard bench LCR Meter BNC orientation established way back by HP and others where the BNCs are arranged in a line fashion of Lc, Ls, Hs, Hc.Now all the specialized fixtures won't fit the UNI-TBest

author: Aldo22
author_rank: Super Contributor
timestamp: May 22, 2025, 05:21:48 pm
content: Quote from: coromonadalix on May 22, 2025, 04:14:17 pmWhy do you think this is new?It looks old-fashioned to me and on some stores it says “no longer available”.

author: electr_peter
author_rank: Unknown
timestamp: May 22, 2025, 05:44:49 pm
content: UTR2811E/UTR2810E are not new LCR meters. New series areUTR2810+andUTR2830

author: DaneLaw
author_rank: Frequent Contributor
timestamp: May 22, 2025, 05:59:32 pm
content: The UTR2810/E series is around 3 years old, from 2021/22.and was updated with a + model in 2024. [UTR2810+ & UTR2810E+]

author: coromonadalix
author_rank: Super Contributor
timestamp: May 22, 2025, 06:53:51 pm
content: thks guysmaybe they got some backlash and changed to the latest on the bnc spacing ...on the 283x series, they use the same frame as their dmm etc ... i did search a lot for lcrs models / brands, and never saw any desktop / bench ones from themonly the handhelds 612 622 series

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: May 22, 2025, 08:29:55 pm
content: Quote from: mawyatt on May 22, 2025, 05:06:55 pmthey wanted em to look alike Yokogawa perhapsanyway I think that there are better options out there and 100kHz comes handy with smd parts

author: mawyatt
author_rank: Super Contributor
timestamp: May 22, 2025, 09:11:49 pm
content: Quote from: kmoonwalker on May 22, 2025, 08:29:55 pmQuality sources often use up to 1MHz test frequency for low (<1000pF) value SMD capacitors.Best

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: May 22, 2025, 09:25:01 pm
content: Quote from: mawyatt on May 22, 2025, 09:11:49 pmfor those yes but for rather "ordinary" Vishay 293D Tantalum ones testing is 100kHz...I always wanted some Hioki impedance analyser to have a sweep result - often single frequency test is not good for R&D if strange problems arise - but that price tag... :/

author: Smokey
author_rank: Super Contributor
timestamp: May 22, 2025, 09:51:58 pm
content: Quote from: mawyatt on May 22, 2025, 05:06:55 pmConsidering I'm not willing to shell out the cash for a single legit HP LCR test fixture, the only thing I actually have that wouldn't fit is your DC bias adapter.

author: mawyatt
author_rank: Super Contributor
timestamp: May 22, 2025, 10:35:31 pm
content: Quote from: kmoonwalker on May 22, 2025, 09:25:01 pmWe acquired a Hioki IM3536 LCR Meter for the frequency range to 8MHz, and the low Z range. We also have a Tonghui TH2830, both are very good lab grade LCR bench meters but neither has the sweep plotting ability built-in.We also wanted to have various plots of DUT parameters and developed PC plotting routines for both these LCR Meters. Mind these aren't quality routines (our coding skills are limited) but better than nothing and suffice for our limited needs.https://www.eevblog.com/forum/testgear/lcr-meter-plot-software/https://www.eevblog.com/forum/projects/lcr-lab-grade-parameter-plotting-fixture/msg5536543/#msg5536543Also developed some LCR Meter fixtures, here's a few links, others are floating around also.https://www.eevblog.com/forum/testgear/sensitive-lcr-meter-measurements/https://www.eevblog.com/forum/projects/lcr-tester-with-dc-bias/msg5580433/#msg5580433https://www.eevblog.com/forum/projects/bias-network-for-lcr-meter/msg5206647/#msg5206647https://www.eevblog.com/forum/testgear/cheap-smd-lcr-fixture-the-good-bad-and-ugly!/And some measurements results with those fixtures.https://www.eevblog.com/forum/projects/ceramic-capacitor-behavior/msg5536403/#msg5536403Best

author: mawyatt
author_rank: Super Contributor
timestamp: May 22, 2025, 10:41:16 pm
content: Quote from: Smokey on May 22, 2025, 09:51:58 pmThe Tonghui LCR Fixtures for leaded components and Kelvin Clips are quite good and very reasonable. Also the cheap AliX SMD LCR Meter fixtures are OK and can be quite good with some rework.https://www.eevblog.com/forum/testgear/cheap-smd-lcr-fixture-the-good-bad-and-ugly!/And for low Z components this custom fixture.https://www.eevblog.com/forum/projects/different-type-lcr-smd-fixture/Best

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: May 22, 2025, 11:37:27 pm
content: Quoteboth Meters you are using are very good quality - I wish I had one of thoseif I remember correctly sweep is from IM3570 (as option) and that chemical analyser IM3590 modelsanyway I think that there was a way to send them commands (ie scan freq 1, freq 2, ...) to "automate" the process and log results via some external software but I did not used those in ages so maybe wrong hereI remember that higher models loaded all into open excel file which was very neat trick that time

author: KungFuJosh
author_rank: Super Contributor
timestamp: May 23, 2025, 12:52:33 am
content: Quote from: kmoonwalker on May 22, 2025, 11:37:27 pmSweep is a basic feature for the IM3570. There are additional plotting options that are not standard (IM9000 firmware upgrade option).Thanks,Josh

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: May 23, 2025, 03:33:58 am
content: oh you are certainly teasing me with those sweeps but first I need to focus on finding new scope

author: tautech
author_rank: Super Contributor
timestamp: May 23, 2025, 06:46:54 am
content: Quote from: kmoonwalker on May 23, 2025, 03:33:58 amNeeds ?Budget ?

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: May 23, 2025, 07:09:54 am
content: Quote from: tautech on May 23, 2025, 06:46:54 amhmm at beginning I wanted to try new Rigol 4000 series but issues... 5000 series as Martin tested is like same sad "story".There was some offer for good condition and nice options included second hand Keysight 3000 series with 1 mln waveforms which would be a great help for tracking rarely occuring events but so far silence from their side.New HD304 has some issues and it hangs as folks tested so far so not reliable but I was willing to try (still bag of money I could use for other things even for 200 MHz variant).Nowadays I am thinking between SDS2000x HD with bundle option and Magnova. There is also that new 2000 series Rigol with most probably same old bugs.Also if I get some new contract I could go with sds3000x hd and later upgrade it but total cost with protocols etc (no bundle like for 2000x hd) is going towards Keysight and its advantages...

author: tautech
author_rank: Super Contributor
timestamp: May 23, 2025, 07:16:51 am
content: Quote from: kmoonwalker on May 23, 2025, 07:09:54 amGood modern DSO's have very powerful trigger systems that you can set and forget to let the trigger find the abnormalities for you.As far as capturing long records a deep memory DSO is always the best choice where you can also use the Search function to find abnormalities and also push those settings to the trigger for further analysis.Happy hunting.....Low cost entry into the Siglent ecosystem is with SDS802X HD which is a very well featured DSO and shares the same UI as its more costly brothers....it might amaze you how capable it is.

author: kmoonwalker
author_rank: Frequent Contributor
timestamp: May 23, 2025, 07:36:21 am
content: I even got some offer with newer Sanwa PC7000 combo and that 800 series Siglent scope that I am thinking about hehe

author: jrobrtsn
author_rank: Newbie
timestamp: May 27, 2025, 11:39:57 am
content: Quote from: coromonadalix on May 22, 2025, 04:14:17 pmive got a UTR2811E+ on the way from china via a forwarder, paid about $15 for it because there was a pricing error on taobao (lucky me)when it shows up in 3 or 4 months ill post images of its insides here. given they are the usually around the same price as the ET4401 im not expecting much but it is from uni-t so you never know.

author: jrobrtsn
author_rank: Newbie
timestamp: May 28, 2025, 01:47:33 pm
content: it may be but for the cost its worth a shot i think. arrived at the forwarder and that is the photo i got. does look new to me.

author: coromonadalix
author_rank: Super Contributor
timestamp: May 28, 2025, 04:03:42 pm
content: TAKE IT APART loll drool loll

author: jrobrtsn
author_rank: Newbie
timestamp: June 17, 2025, 12:46:20 pm
content: It has now been delivered to me.obviously I took it apart as soon as I opened the parcel.it seems to work relatively well. quite easy to figure out.not bad for $60 including delivery i think.

author: jrobrtsn
author_rank: Newbie
timestamp: June 17, 2025, 12:47:27 pm
content: (other pictures)