Der EE De-5000 alternative - Page 1
Forum section: electronics / testgear

author: derree
author_rank: Contributor
timestamp: September 05, 2020, 09:54:25 pm
content: Hi everyone, ist there an alternative to the often recommended Der EE De-5000 LCR meter? The Der EE is quite expensive on german Ebay, I would have to pay quite a hefty tax, and I must pick it up at the customs offices.All the other handheld LCR meters seem to be either total crap, or expensive as hell.

author: cdev
author_rank: Super Contributor
timestamp: September 05, 2020, 10:00:18 pm
content: Just curious how much tax they add. I am in the US and paid a little leas than $100It is very useful.Quote from: derree on September 05, 2020, 09:54:25 pm

author: Kean
author_rank: Unknown
timestamp: September 05, 2020, 10:09:12 pm
content: There is a reason they are so often recommended - very good value for money, and no real competitor in that same price bracket.I have a Peak LCR45, a Tonghui TH2822C, and a CKT5000, so I never bothered to get a DE-5000

author: Martin72
author_rank: Super Contributor
timestamp: September 05, 2020, 10:27:56 pm
content: Quote from: derree on September 05, 2020, 09:54:25 pmHi,Last month I´ve bought a DE-5000 and was impressed about the accuracy - Test it against our GenRad and Keysight LCR at work, really good and with the spending money in mind, it´s best bang for bucks and ways above it´s price.It´s no surprise, because it is a 1:1 clone of a GenRad product.I´ve bought it on ebay, with all options including.All in I´ve payed appx. 140€ including taxes - Still best bang for buck, because:Our Keysight LCR which is in many cases equal to the DE5000 costs about 700€ incl. calibration.QuoteNo.As wrote before, I´ve bought it on ebay from a japanese seller.When it´s arrived in germany, I´ve got a letter from the customer office.They wanted me to call them back via telephone - I´ve done it, they want simply a screenshot of my PayPal bill.After sending them this, it came wit DHL Express Courier.He wanted the additional tax in cash, appx 32€, then you got it.Buy the DE-5000, You won´t regret it...

author: switchabl
author_rank: Frequent Contributor
timestamp: September 05, 2020, 10:34:40 pm
content: I bought mine from amazon.com, they ship to Germany and take care of customs and VAT (taxes are paid up front). I think I paid around 120€, so may or may not end up cheaper than on eBay from Japan, but definitely more convenient.

author: Martin72
author_rank: Super Contributor
timestamp: September 05, 2020, 10:57:41 pm
content: With all adaptors ?Then congrats !

author: cdev
author_rank: Super Contributor
timestamp: September 05, 2020, 10:59:38 pm
content: A nanovna 2 and a decent test jig, might make a fairly good alternative.

author: Kosmic
author_rank: Super Contributor
timestamp: September 05, 2020, 11:09:38 pm
content: Mastech MS8911 LCR tweezer ? they are really cheap (46$US) and mine is working really well. Accuracy seem to be better than what's specified in the specs­. 100Hz to 10Khz testing frequency. 0.5V and 0.1V testing voltage. 0.1V should help with incircuit testing.

author: Martin72
author_rank: Super Contributor
timestamp: September 05, 2020, 11:17:59 pm
content: Got this one, especially for the 0.1V thing.Unfortunately, this won´t work everytime.Accuracy in general is good for it´s price.

author: Kean
author_rank: Unknown
timestamp: September 05, 2020, 11:20:23 pm
content: The DE-5000 can test at 100kHz. There are cheaper options that only do 1kHz or 10kHz, but they probably also don't have the confirmed accuracy of the DE-5000. e.g Hantek or crap from Banggood/Amazon. Some will be even more expensive e.g. BK Precision.

author: Martin72
author_rank: Super Contributor
timestamp: September 05, 2020, 11:25:01 pm
content: The 100Khz should be take with caution, even our Keysight model(UC1733C)"says", the accuracy on this frequency will decreasing remarkable.

author: Kosmic
author_rank: Super Contributor
timestamp: September 05, 2020, 11:25:18 pm
content: Quote from: Martin72 on September 05, 2020, 11:17:59 pmI compared mine to my Philips PM6303 (0.25%) and Sandford Research SR720 (0.05%) and was surprise with the accuracy of the MS8911. I was expecting a lot worst.

author: Martin72
author_rank: Super Contributor
timestamp: September 05, 2020, 11:27:31 pm
content: Take five different LCR models, you´ll get five different values...

author: BigBoss
author_rank: Regular Contributor
timestamp: September 06, 2020, 12:21:20 am
content: I have recently-few days ago-bought a DER-EE LCR Meter from e-bay, it cost me 106 Euros all included.Paypal accepted.Delivery has taken almost 10-15 days.Supplier is very responsible.https://www.ebay.fr/itm/DER-EE-DE-5000-High-Accuracy-Handheld-LCR-Meter-w-TL-21-TL-22-TL-23/282040803373?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

author: graybeard
author_rank: Frequent Contributor
timestamp: September 06, 2020, 12:26:21 am
content: I am very happy with me DerEE DE-5000. I bought mine from someone in Japan for just over $100. For what it does it is a bargain. I have not seen anything that is as good for the money.It is probably the second most used instrument I have (I and have no shortage to choose from). Only a my hand held multimeter is used more. Just get one.

author: SilverSolder
author_rank: Super Contributor
timestamp: September 06, 2020, 01:12:40 am
content: Quote from: cdev on September 05, 2020, 10:59:38 pmI like that solution better than an LCR meter, because the meters really only give you one point on what is actually a curve...That said, the NanoVNA has a pretty high minimum frequency, if I remember correctly?

author: coromonadalix
author_rank: Super Contributor
timestamp: September 06, 2020, 02:17:39 am
content: you have uni-t ut611 and ut612 i think who is made with the same ic's

author: indman
author_rank: Super Contributor
timestamp: September 06, 2020, 09:38:35 am
content: Quote from: Martin72 on September 05, 2020, 11:25:01 pmYes!I have a quality DE-5000(it has some problems at 100kHz measurement frequency), but not as an advertisement, I also want to draw your attention to an affordable DIY kits LCR-bridge XJW01(has real accuracy not worse than 0.3%), which I use quite often and which in some cases is more convenient in terms of observing the measurement results.

author: derree
author_rank: Contributor
timestamp: September 06, 2020, 10:11:07 am
content: Hi, the price right now is 156 Euros directly from Japan, shipping included. The tax for the import would be 37 Euros, so the whole price adds up to 197 Euros. Ouch!

author: switchabl
author_rank: Frequent Contributor
timestamp: September 06, 2020, 10:35:16 am
content: Quote from: cdev on September 05, 2020, 10:59:38 pmThe NanoVNA V2 doesn't go below 10kHz. Also, measuring impedances much smaller or larger 50ohms with a VNA is possible, but not completely trivial and I do not believe it is supported out of the box with the NanoVNA. It is certainly much less convenient than an LCR meter. I would also guess that the accuracy may easily be an order of magnitude worse on some ranges, though I don't have the data to back it up (yet).So, while the NanoVNA may be a very useful addition for higher frequency impedance measurements (and many other things!), I would not consider it a real alternative to an LCR meter for everyday use.This is the one I bought:https://www.amazon.com/5000-Handheld-LCR-Meter-accessories/dp/B00S298KJO/Not sure which seller, but it probably doesn't matter, they are the same price and all are shipped by Amazon. It shows 138$ including shipping to Germany and taxes, so around 117€.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 06, 2020, 11:31:59 am
content: You have some cheap lcr component testers, and some of them are precise, not ultra precise, but they can help to find some defective coils or capacitors, i had one of them, and was pretty impressed bfore buying an DE-5000You have here a very long thread about them 20$ lcr testerhttps://www.eevblog.com/forum/testgear/$20-lcr-esr-transistor-checker-project/

author: BravoV
author_rank: Super Contributor
timestamp: September 06, 2020, 11:41:04 am
content: Test frequencies matter, at least for me, as the 100 or 120Hz is for basic capacitance especially for electrolyte caps as specified as in all cap's datasheet, and also at 100kHz which is for ESR measurement as standardized in all low ESR caps manufacturers datasheet.Beyond 100kHz, mostly belong to desktop type non handheld (read : more expensive) LCR meters, and also this kind of measurement needs special test jig/clips for the DUT @ >100kHz, cmiiw.

author: derree
author_rank: Contributor
timestamp: September 06, 2020, 11:51:47 am
content: Hi, I already have this tester, which is in fact quite ok. But the overall build quality is toy-like, and I am looking for a proper tool.

author: BravoV
author_rank: Super Contributor
timestamp: September 06, 2020, 11:57:23 am
content: Quote from: derree on September 05, 2020, 09:54:25 pmQuote from: derree on September 06, 2020, 11:51:47 amAs you're complaining the price even for DE5000, don't think you will be interested at far more advanced LCR meter as most the times they're expensive, even used.Just curious, what do you mean by "proper tool" in the LCR meter context ?

author: coromonadalix
author_rank: Super Contributor
timestamp: September 06, 2020, 12:39:39 pm
content: The "proper tool" will be expensive, the de-5000 is the best features vs price model you can get .... if not go to Aliexpress and search all their lcr metersYou can't get best of both world without paying more to get a "proper tool"I think you are very picky ? and this thread is a going nowhere one ... seeing your reactions.

author: BravoV
author_rank: Super Contributor
timestamp: September 06, 2020, 12:54:29 pm
content: Quote from: coromonadalix on September 06, 2020, 12:39:39 pmI guess the op's definition of "proper tool" is not cheap plastic feel, and also maybe just judging only from the look like built from metal/sturdy frame and etc.If that is the case, I agree, this thread is going no where as the op probably doesn't even know what to look for apart from the device's look & feel only.

author: 2N3055
author_rank: Super Contributor
timestamp: September 06, 2020, 01:20:48 pm
content: There are several places that carry DE-5000 in EU, for 180-190€+ TAX.While that might not seem cheap, importing stuff and having to deal with vendor in far away country, not knowing what will you get etc..I would personal get one of those in EU to have warranty,all consumer protection and 2-3 days delivery.Even at 220 € with tax, DE-5000 is better than anything else up to 500-600€...

author: derree
author_rank: Contributor
timestamp: September 06, 2020, 02:17:40 pm
content: Thanks to all, your opinions are very helpful. Long story, short: There are no real affordable alternatives which hold up to the DE-5000.Looks like I just save up,and buy one of those.

author: Qw3rtzuiop
author_rank: Frequent Contributor
timestamp: September 06, 2020, 08:00:38 pm
content: Its cheaper available:https://www.ebay.de/itm/DER-EE-DE-5000-Handheld-LCR-Meter-TL-21-TL-22-3-SET-from-JPN-New-F-S-Authentic/383643184292?epid=24032160007&hash=item5952ea6ca4:g:1wMAAOSw0K5eKAMrca. 96€ with the risk of additional 19% import tax. And the shipping isnt DHL Express so you dont have to pay the DHL Express "service" fees.

author: Martin72
author_rank: Super Contributor
timestamp: September 06, 2020, 08:16:40 pm
content: This is where I got mine from..

author: eKretz
author_rank: Frequent Contributor
timestamp: September 06, 2020, 08:25:08 pm
content: Add one more to the list of guys very happy with the DER-EE. Love mine for sure. It is in my list of most used instruments also.

author: Martin72
author_rank: Super Contributor
timestamp: September 06, 2020, 08:49:25 pm
content: As I wrote it before, got mine still at work and let it compete with our calibrated, much more expensive LCRs....It do a fantastic job so far.But also as our keysights and GenRads, it got problems to measure power coils accurate - but this a "natural" behaviour, as all the LCRs on the market couldn´t deliver real current flowing to the DUT.For this cases, we got a self-build solution with IGBT and µC, delivering currents up to 200A...

author: SilverSolder
author_rank: Super Contributor
timestamp: September 06, 2020, 10:25:24 pm
content: Quote from: Martin72 on September 06, 2020, 08:49:25 pm

author: Martin72
author_rank: Super Contributor
timestamp: September 06, 2020, 10:45:40 pm
content: Sounds dramatically, but it isn´t...In fact, the source for it won´t need more than 300mA to deliver...The secret, sshhh....Caps

author: graybeard
author_rank: Frequent Contributor
timestamp: September 07, 2020, 06:47:03 am
content: You could spend more moneythe Hantek TO22. It has a nicer display and uses Li ion batteries. It appears to have the ability for Kevlin inputs, but does not come with leads or adapters to utilize them.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 07, 2020, 09:37:39 am
content: for the to11 or to22 lcr there is this link, a kelvin pcb made for themhttps://github.com/voltlog/kelvin-leadsIt was posted on hackaday too

author: xwarp
author_rank: Frequent Contributor
timestamp: September 07, 2020, 10:30:52 pm
content: Quote from: coromonadalix on September 07, 2020, 09:37:39 amOh come on......another one?I have the DE-5000. This one looks freakin nice, although I'd probably get the higher freq version.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 07, 2020, 11:37:56 pm
content: Come on what ?DE-5000 does 100khz and priced way lower than the TO11 TO22, the lack of kelvin probes is a no go, for that price you have a De-5000 kit with an carrying case and in some instances (Ebay) without the case you can have all the probes and the optical communication interface ...You have an M4070 lcr meter, seems to do a good job too, even do up to 500khz for capacitor and 360khz for coilshttps://www.banggood.com/Professional-M4070-Handheld-LCR-Bridge-Capacitance-Inductance-Meter-p-938984.html?cur_warehouse=CNThere's an m4070 teardown on the web

author: edavid
author_rank: Super Contributor
timestamp: September 07, 2020, 11:45:38 pm
content: Quote from: coromonadalix on September 07, 2020, 11:37:56 pmAre you sure that's a real LCR meter? It looks like an overpriced AADE style LC tester with an ohmmeter added.QuoteWhere?

author: coromonadalix
author_rank: Super Contributor
timestamp: September 08, 2020, 01:51:23 am
content: hum can't find it but its floating on the web somewhereSome said it was like an mlc-500 lcr, anything is possible .... this is the internal mlc-500 board see the 3 holes ...and a discutionhttps://groups.io/g/QRPLabs/topic/mlc_500_lc_meter/6379464?p=And to end this lengthy discution, a real lcrI had an Sencore lc102 is it a real lcr ?? it was charging a capacitor up to 1 kilovolts, it could do up to 20 henrys and 20 farad. Sold it, wanted more available place on the benchI had an Phillips pm6304 lcr too ... same thing, needed more place ... i was even trying to build an dc offset option board, i have a thread here.Now i have an De-5000 is it an lcrIt does what i want, thats allIf you do a check list of all the lcr brands out there : what will you buy in the end ? a 100$ one, a 200$, up to 2k $$$ or more ? overpriced ones or cheaper ones ?

author: edavid
author_rank: Super Contributor
timestamp: September 08, 2020, 04:06:38 am
content: Quote from: coromonadalix on September 08, 2020, 01:51:23 amThat board certainly does not look like an LCR meter circuit. 3 holes, so whatQuoteNo, doesn't appear to be (can't measure D/Q, etc.)QuoteNow that is an excellent LCR meter!

author: girishv
author_rank: Regular Contributor
timestamp: September 08, 2020, 05:56:27 am
content: TI has published a reference design "LCR meter analog front end reference design"https://www.ti.com/tool/TIDA-060029Following text is copied from TI site:This reference design, TIDA-060029 demonstrates an analog signal chain solution for LCR Meter applications using an auto balancing impedance measurement method.FeaturesMeasures wide range of components (L, C, R) with impedance values ranging from 1 Ω to 10 MΩFrequency of operation up to 100 kHzTested at 100 Hz, 1 kHz, 10 kHz, 100 kHzImpedance accuracy of 0.1 %Inherently stable operation of the signal chain

author: xwarp
author_rank: Frequent Contributor
timestamp: September 08, 2020, 06:44:17 am
content: Quote from: coromonadalix on September 07, 2020, 11:37:56 pmI meant that as a way of implying that there is another meter I might have to buy because......I do like the lower resistance range on it in addition to the software that it uses.As far as the kelvin cables/clips/etc, that's a non issue for me.

author: exe
author_rank: Unknown
timestamp: September 08, 2020, 07:36:22 am
content: What are main differences between to22 and DE-5000? To me to22 looks a bit more appealing due to the color screen.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 08, 2020, 08:16:11 am
content: Check their specs and do a comparaison ?https://www.deree.com.tw/de-5000-lcr-meter.htmlhttp://hantek.com.cn/products/detail/16180the t011 is an 1832cthe t022 is an 1833cThey seems to have the same ranges, i work with 12,000 uf capacitors in banks of 2 or 4 ... have to separate them if i want to do measurements.EDIT arr some web lag loll 20 millifarads are the top capacitor range = 20,000 uf, i would like a 100,000 uf top rangeThe biggest difference for me is the integrated usb link in the to22, the de-5000 need an added interface, but generally have all the input dongles ...Of course you have colors lollEdit : i've seen some country have big import charges and added taxes, it will influence the total amount in a big wayYour wallet will talk lollThe lowest price i've seen for the Hantek are 182$ usd for the to22 on AliExpress and Banggood, Ebay seems to follow this trend.The DE-5000 kinda disspapeared on some websites ?The DE-6000 is a tighter specced model, not worth the $$$ price differenceYou have the ET430 series who seemed very nice too, but high priced to my taste, they seems a rebadged version of tonghui and another one (blank memory loll)ANNND where back in a circle, too many models to choose.Would be nice to poke in the FW of the TO22 to see if we can hack a TO11 / 1832c into the TO22 / 1833c, there is a started thread fo the TO11 here with a dumped FW of it.https://www.eevblog.com/forum/testgear/hantel-lcr-1832c-unlock/

author: exe
author_rank: Unknown
timestamp: September 08, 2020, 09:43:27 am
content: Quote from: coromonadalix on September 08, 2020, 08:16:11 amThanks for the detailed reply. The reason I asked is that spec != user experience. Not to mention I don't trust those specs unless verified.

author: coromonadalix
author_rank: Super Contributor
timestamp: September 08, 2020, 10:27:42 am
content: In the end it's the needed specs / capabilities for the job(s) you need to do versus the price you want to pay, a benchtop has it's quirks and a hand held too lollYou could do many comparaisons / specs / prices all year long lollEven a cheap 20-30$ lcr tester / parts tester helped me to do some jobs ... and the FW and hardware is constantly evolving.Paid up to 600$ usd for a bench lcr and it was not enough. Always something you need

author: SilverSolder
author_rank: Super Contributor
timestamp: September 08, 2020, 02:32:56 pm
content: Seems to me convenience and speed is what you pay for. Theoretically, you could do a lot of quite reasonable LCR testing with your function generator and oscilloscope, plus a DIY fixture of some kind - if there were enough hours in the day to set this kind of thing up, every time you needed it!

author: notfaded1
author_rank: Frequent Contributor
timestamp: September 08, 2020, 06:35:41 pm
content: I just bought a spare TL-21 bought some nice kevin clip cables off of ebay and cut off the ends and soldered them onto the circuit boards of the spare TL-21 carefully. Now after calibration I have nice long cables and big kelvin clips I can use on big GIANT CAPS!Bill

author: Martin72
author_rank: Super Contributor
timestamp: September 25, 2020, 09:24:24 pm
content: Took my DE-5000 at home now, after several comparison between a stationary GenRad and a new bought keysight 1733C(both new calibrated).The accuracy is really good, notifying the price, all in appx 160€(including Tax, Shipping), it is fantastic.Instead of looking for cheaper alternatives, save your pennies until you can buy the DE-5000.

author: kiltro
author_rank: Contributor
timestamp: December 22, 2022, 09:17:56 am
content: I'm not sure, are the probes and accessories included in the DE-5000 package or have to be bought separately?I'm looking at some ebay offers but it's not clear

author: coromonadalix
author_rank: Super Contributor
timestamp: December 22, 2022, 11:47:13 am
content: yes there is some kit de-5000 with the TL-xx adapters at good prices, you have to search a littleFleabay sometimes as better pricing than Ali .... Ali as caught in the inflated pricings ...For the same ic's than the DE-5000 you have the uni-t 612 and the mastech klunky model 5308Some sell for the Uni-t 612 sometimes are more / better priced than a full De-5000 kit

author: kiltro
author_rank: Contributor
timestamp: December 22, 2022, 01:25:14 pm
content: Quote from: coromonadalix on December 22, 2022, 11:47:13 amSo, if I understand what you mean there isn't any in the default package. But you have to buy a kit, or separate probes?I can't find it on Ali nor Flea, only on ebay

author: alm
author_rank: Super Contributor
timestamp: December 22, 2022, 03:24:01 pm
content: The DE-5000 is sold with various subsets of wall wart, link cable, tweezers, alligators clips, ground lead and hard case (did I miss any?). You need to check each individual listing carefully to see what's included. In my opinion the important ones are the alligator adapter (also useful for modifying for Kelvin connections) and the tweezers.

author: kiltro
author_rank: Contributor
timestamp: December 22, 2022, 03:49:18 pm
content: Quote from: alm on December 22, 2022, 03:24:01 pmOk I found one, meter + alligators + tweezers for $160 (then there will be customs)

author: 2N3055
author_rank: Super Contributor
timestamp: December 22, 2022, 05:22:23 pm
content: Why is nobody pointing to obvious:https://eleshop.eu/de-ree-de-5000-lcr-meter.htmlIt is in EU.. And a good company...

author: coromonadalix
author_rank: Super Contributor
timestamp: December 22, 2022, 05:45:08 pm
content: The obvious is not always obvious loll

author: exe
author_rank: Unknown
timestamp: December 22, 2022, 09:00:17 pm
content: Quote from: 2N3055 on December 22, 2022, 05:22:23 pmIt's 180euro+VAT... Would be 217euro for me. Kinda expensive...

author: kiltro
author_rank: Contributor
timestamp: December 22, 2022, 09:02:18 pm
content: Quote from: 2N3055 on December 22, 2022, 05:22:23 pmIndeed it's not lol180 + 16 shipment + 43 Tax =239...

author: Martin72
author_rank: Super Contributor
timestamp: December 22, 2022, 09:37:47 pm
content: For my former DE5000 I´ve payed 156€ all inclusive, bought from ebay (japan seller).Everything´s on board except the hard case (Don´t need it).Actually pollin.de sells out the Uni-T, could be the same chipset, but it seems Uni-T doesn´t have the 4-wire sockets the DE5000 got.https://www.pollin.de/p/uni-t-digitales-lcr-messgeraet-ut612-usb-100-khz-830529

author: elecdonia
author_rank: Frequent Contributor
timestamp: December 22, 2022, 10:28:38 pm
content: Quote from: cdev on September 05, 2020, 10:59:38 pmI have a nano VNA but haven’t fully learned how to use it yet. I am convinced that it packs a lot of functionality and processing power into a tiny package. But one problem (for me) is the tiny screen along with its tiny touch-sensitive controls. At my age, traditional test gear (with switches and controls) is often easier for me to use.-E

author: kiltro
author_rank: Contributor
timestamp: December 23, 2022, 08:24:05 am
content: Quote from: Martin72 on December 22, 2022, 09:37:47 pmWait, VAT and import duties to Germany included??It seems it would cost me more or less 230-240, including all, to Italy

author: 2N3055
author_rank: Super Contributor
timestamp: December 23, 2022, 08:32:58 am
content: Quote from: kiltro on December 23, 2022, 08:24:05 amPrices went up in last year. DE-5000 used to be around 100 USD on E-Bay. And tax and import rules changed recently so they charge tax on everything.That is why I said Eleshop: price is pretty much same as if you are importing it from some "exotic" source, you get EU company as a source, with fast shipping, warranty and customer protection... Even if it is 10-20 € more that is worth something too.

author: kiltro
author_rank: Contributor
timestamp: December 23, 2022, 08:46:34 am
content: Quote from: 2N3055 on December 23, 2022, 08:32:58 amMakes sense... Do you think it's still worth the money though? For 240€?

author: 2N3055
author_rank: Super Contributor
timestamp: December 23, 2022, 08:57:25 am
content: Quote from: kiltro on December 23, 2022, 08:46:34 amRead what other people wrote. It works really well.Everything else also had their prices rise.Your cheaper alternative is UNi-T UT612. It is not 4-Wire (kelvin) but works well enough.

author: Martin72
author_rank: Super Contributor
timestamp: December 23, 2022, 09:06:57 am
content: QuoteYepp...QuoteThe next that will be a little bit "better" is a ET4410, but it costs more.As long as you use the DE5000 inbetween its specs*, there´s hard to find an alternative for the same money.I´ve compared it to the calibrated meters we got at work, e.g. keysight U1733C.Measures with 1khz and 10khz are like you use always the same meter...(* Some people are using 100Khz and measure a cap with µf - And wonder why the meter is "freaking out")

author: coromonadalix
author_rank: Super Contributor
timestamp: December 23, 2022, 12:01:32 pm
content: They must learn how to use an lcr and the frequencies needed for the tests .... the difference between lytics and ceramics etc ... There is on the web some well crafted chartsFrequency vs capacitance etc ... even some old lcr had them on a sheet etc ...

author: edavid
author_rank: Super Contributor
timestamp: December 23, 2022, 04:13:29 pm
content: Quote from: 2N3055 on December 23, 2022, 08:32:58 amIt seems to still be around that price - I don't know about the taxes though.https://www.ebay.com/itm/394268326803https://www.ebay.com/itm/383808004139

author: exe
author_rank: Unknown
timestamp: December 23, 2022, 08:21:31 pm
content: Quote from: Martin72 on December 23, 2022, 09:06:57 amWhat's up with that? Afaik low-esr swiching solid caps are specified at 100kHz

author: iet
author_rank: Frequent Contributor
timestamp: December 23, 2022, 08:23:32 pm
content: Quote from: 2N3055 on December 23, 2022, 08:57:25 amIn my opinion, UNI-T UT622C has a 4-wire connection.But it costs more.

author: 2N3055
author_rank: Super Contributor
timestamp: December 23, 2022, 08:45:07 pm
content: Quote from: iet on December 23, 2022, 08:23:32 pmUNI-T UT622C definitely has a 4-wire connection, but is more expensive.. But it seems a bit better instrument..

author: iet
author_rank: Frequent Contributor
timestamp: December 23, 2022, 08:52:51 pm
content: Quote from: 2N3055 on December 23, 2022, 08:45:07 pmYes, a little better.http://unitrend.oss-cn-hongkong.aliyuncs.com/upload/file/20210615/UT622%20Datesheet.pdf

author: mawyatt
author_rank: Super Contributor
timestamp: December 24, 2022, 12:00:42 am
content: Don't know if we were lucky or what, but the DE-5000 we have with a good stable SMD test fixture as shown, produces results comparable to our Hioki IM3536 and Tonghui TH2830 LCR Lab Bench Meters. The SMD fixture shown is just a cheap AliX that we modded for better stability. We also took an extra TL-21 and removed the alligator clips and carefully replaced with 4 coaxial cables and female BNCs as shown for true Kelvin sensing.For example, we ran thru our COG caps (0603 & 0805) from 0.3pF to 1000pF that we use to characterize and check the LCR meters before making serious measurements (sanity check if you will). We used 10KHz and 100KHz and compared the DE-5000 to the TH2830 (10 Avg) after doing an Open and Short cal on both with the fixture in place.Value (size) TH2830 @ 10KHz (DE-5000) TH2830 @ 100KHz (DE-5000)0.3pF (0805) 0.31678 (0.31) 0.31614 (0.32)1pF (0805) 1.01954 (1.02) 1.01657 (1.02)4.7pF (0603) 4.68814 (4.69) 4.68440 (4.71)10pF (0805) 9.95328 (9.96) 9.94757 (10.01)100pF (0805) 99.6967 (99.94) 99.6819 (99.97)1000pF (0805) 993.241 (995.4) 992.724 (994.6)Think these results speak for themselves, and better than we expected from a modestly priced handheld LCR meter, however YMMY.Best and Happy Holidays,

author: Martin72
author_rank: Super Contributor
timestamp: December 24, 2022, 12:49:25 am
content: QuoteIndeed, for it´s price it´s hard to beat.Or better, it couldn´t be beat.The integrated chipset ( 2 ICs) performs well.

author: mawyatt
author_rank: Super Contributor
timestamp: December 24, 2022, 01:25:25 am
content: Agree, it appears the 2 chip set used by the DE-5000 performs quite well indeed!! Would also expect very good reliability from such.Best,

author: coromonadalix
author_rank: Super Contributor
timestamp: December 24, 2022, 01:54:40 am
content: you have some pcb traces hacks to implement a full 4 wires setupand the crocodile grabbers who get some modifications toothe only thing i haven't found is a calibration procedure for themor i totally missed it ? sure you have the open and close mode

author: mawyatt
author_rank: Super Contributor
timestamp: December 24, 2022, 02:44:28 am
content: Quote from: coromonadalix on December 24, 2022, 01:54:40 amThere are no trace hacks required, if you study the schematics and of the chip set utilized (where ever they are), you'll see that the chip set invokes a full Kelvin 4 signal measurement with Low Current, Low Sense, High Sense and High Current just like the Lab LCR meters.http://www.cyrustek.com.tw/wp-content/uploads/ES51920.pdfNote the reference to "4-wire terminal with guarding measurement" in the data sheet.The TL-21 Alligator Clips route the Current and Sense wires in a 2 wire shield cable for High and Low. The Current and Sense are terminated together (soldered) on one side of the Alligator clips towards the end, the shield is not connected.So if you remove these High and Low cables you have H-C, H-S, L-S, L-C separate TL-21 PCB trace holes available. There are the 3 separate blades in the TL-21 that engage the DE-5000 body, the blades are double sided and two blades are used for High and Low Current and Sense lines (4 lines total), the other Blade is double sided Guard.We used 4 coaxial cables and soldered each shield to the Guard Ground on the PCB TL-21 which is the internal meter analog ground.Here's a couple images showing the standard DL-21 with Alligator clips and the modded DL-21 with the 4 coaxial lines and BNC connectors, note the 4 separate active lines in each.Anyway, hope this helps understand how the DE-5000 is configured.Best and Happy Holidays,Edit: Haven't found any way to calibrate, nor files related to such. Actually we haven't even tried to look at any of the firmware/software, will have to leave this to the more qualified folks.