Is there a LCR meter, which has default mode of C/ESR measurement? - Page 1
Forum section: electronics / testgear

author: LinuxHata
author_rank: Frequent Contributor
timestamp: July 12, 2022, 05:36:09 pm
content: Hello.I have Victor VC-4080 and DER EE5000.Both have same issue, once powered on, they start with "LCR Auto" and not showing ESR, but showing something different, and frequency set to 1khz.So each time I power them on, I have to cycle thru the menus/options to change things, which is quite annoying.So I'm looking for a decent, 4 wire LCR meter, which, once being set to measure capacitance at 100hz and ESR, when turned off and back on, remembers this mode and there's no need to change things all the time?Thanks!

author: mawyatt
author_rank: Super Contributor
timestamp: July 12, 2022, 05:40:26 pm
content: Tonghui TH2830 and Hioki IM3536 LCR Meters are mains powered lab types and have 4 wire setups. These remember all the previous settings and even the previous calibration data, altho more expensive than the DE-5000.Best,

author: LinuxHata
author_rank: Frequent Contributor
timestamp: July 12, 2022, 07:05:07 pm
content: Tonghui seems to be within my estimated budget, but it is huge, not portable, in terms that you can put it into drawer when needed (and I don't need LCR measurement that often), so I'd like to have more portable option, if possible....

author: Rydda
author_rank: Contributor
timestamp: July 12, 2022, 07:43:53 pm
content: The UNI-T UT622E remembers previous settings.

author: Per Hansson
author_rank: Unknown
timestamp: July 12, 2022, 08:50:00 pm
content: The Agilent / Keysight / U1731C / U1732C / U1733C allows you to change both the frequency and measure type you boot it up into, and allot of other things, but it is not 4-wire.

author: LinuxHata
author_rank: Frequent Contributor
timestamp: July 12, 2022, 09:10:59 pm
content: UT622E looks strikingly similar to my Victor 4080, which does not remembers settings......

author: Rydda
author_rank: Contributor
timestamp: July 12, 2022, 10:33:37 pm
content: Indeed it does. But my UT622E really does remember.

author: The Electrician
author_rank: Frequent Contributor
timestamp: July 12, 2022, 11:02:27 pm
content: The Applent AT824 remembers and is a top notch instrument. If you want 100 kHz, there's the AT826.

author: pdenisowski
author_rank: Super Contributor
timestamp: July 13, 2022, 10:29:13 am
content: The Rohde & Schwarz LCX series LCR meters remember the settings at power off and also have three user-definable presets.https://www.rohde-schwarz.com/us/products/test-and-measurement/lcr-meters-and-impedance-analyzers/rs-lcx-lcr-meter_63493-1172288.html(I just made a couple of “Getting Started” videos on the LCX, which should be posted to the R&S YouTube channel in a few weeks)

author: AVGresponding
author_rank: Super Contributor
timestamp: July 13, 2022, 11:49:49 am
content: Quote from: pdenisowski on July 13, 2022, 10:29:13 amThose look very nice indeed, though I'm not sure they are quite in the same price bracket as the other meters being discussed in this thread...

author: mawyatt
author_rank: Super Contributor
timestamp: July 13, 2022, 01:49:05 pm
content: Quote from: LinuxHata on July 12, 2022, 05:36:09 pmBTW just in case you were not aware, the DE-5000 has 4 wire LCR capability. The supplied TL-21 alligator fixture has 4 separate connections if you look inside, we got an "extra" one and reworked it with a cheap set of Kelvin clips so we could have a true 4 wire measurement capability from the DE-5000. Works pretty good!!Edit: Added image.Best,

author: Per Hansson
author_rank: Unknown
timestamp: July 13, 2022, 03:08:00 pm
content: Maybe you could hack the serial eeprom chip U3 and change the startup defaults, should be a 24C02 according to Dave's old teardown of the DE-5000.

author: mawyatt
author_rank: Super Contributor
timestamp: July 13, 2022, 04:43:19 pm
content: Quote from: Per Hansson on July 13, 2022, 03:08:00 pmIf one could in fact do this (have no idea how tho), then it might be possible to bypass the DC short test and incorporate a External DIY DC Bias Adapter like this:https://www.eevblog.com/forum/projects/bias-network-for-lcr-meter/msg4170607/#msg4170607The DE-5000 we have doesn't work with this DIY DC Bias Adapter, think because it fails the DC short test during calibration.Best,

author: TurboTom
author_rank: Super Contributor
timestamp: July 13, 2022, 06:26:32 pm
content: Quote from: The Electrician on July 12, 2022, 11:02:27 pmDefinitelyfor the AT826. I bought mine approx. seven years ago, use it moderately frequently and never once got disappointed by it. It "remembers" the configuration that it's been in before powering down, so it performs as you require. Moreover, it's a pretty accurate little instrument. By searching the forum, you'll find some further information on it. It's got the advantage of being programmable via USB so it can be used in automated measurement setups.

author: LinuxHata
author_rank: Frequent Contributor
timestamp: July 13, 2022, 08:10:09 pm
content: Yes I know that DE-5000 is 4 wire LCR meter (So does Victor 4080), I even have kelvin clips for it, and use them almost all the time.But I really don't like that I have to go thru the bunch of keypresses on each startup.And by the way, it recently started behaving strangely - all capacitors at 10Khz show overrange now, but are OK at 1khz, 100khz, 100hz, or 120 hz

author: pdenisowski
author_rank: Super Contributor
timestamp: July 14, 2022, 10:24:36 am
content: Quote from: AVGresponding on July 13, 2022, 11:49:49 amPerhaps notQuote from: AVGresponding on July 13, 2022, 11:49:49 amyuch Sopbe’ba’ tlhInganpu’