Products > Test Equipment
LCR meter reccomendations, mostly for measuring ESR on e-caps
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mawyatt:
Agree not much between the DE-5000 and over $1K, except the Tonghui TH2830 which may be found for ~$900, we got ours for $850 a few years ago.

One must remember that the above $1K is bench LCR meter territory and these bench meters have many features lacking in the handhelds. Things like very high current levels up to 67ma for the TH2830 (100ma for the Hioki IM3536), selectable test Voltage and Current levels, selectable drive output impedances, DUT component binning, DC voltage and current DUT bias, frequency ranges below 50Hz (IM3534 IM3536 is 4Hz) usually with 1Hz resolution, higher frequency ranges (IM3536 is 8MHz) also with fine resolution, bigger displays with more information, external interfaces, DUT graphing capability and so on. Also the available precision DUT fixtures available, some of which have been cloned and not expensive, the SMD fixtures are an example.

The design of the quality bench type LCR meters is different as well, they utilize DDS created DUT waveforms and utilize high resolution ADCs (some have 24 bit SD ADCs that are common to lower end 5.5 and 6.5 DMMs) and have 5~6 digit resolution, and high BW and power level drive channels capable of driving 50~100ma DUT currents.

The handheld and bench LCR meters are like comparing a handheld and bench DMM, not exactly the same same features, resolution, accuracy and so on. One wouldn't use a handheld DMM to measure/characterize a Vishay precision resistor, nor a LM399 or LTZ1000, but would use such for troubleshooting in circuit, measuring the Mains lines and "seeing" if a 1K resistor is 1K or 10K (still can't read the color codes!!).

Also, should mention the quality bench LCR meters higher DUT excitation currents allow Resistance measurement ranges below the ranges on popular high resolution DMMs like the KS34465A, where the lowest range is 100 ohms.

Anyway, each type LCR meter has their place like the mentioned DMMs, and why we have and use both types.

Best,
pdenisowski:

--- Quote from: mawyatt on August 09, 2023, 02:01:58 pm ---One must remember that the above $1K is bench LCR meter territory and these bench meters have many features lacking in the handhelds.

--- End quote ---

I did a video explaining "benchtop" LCR meters and their features:



and I also did one that shows how these kinds of features are implemented on our LCX series LCR meters

mawyatt:

--- Quote from: pdenisowski on August 09, 2023, 02:54:40 pm ---
--- Quote from: mawyatt on August 09, 2023, 02:01:58 pm ---One must remember that the above $1K is bench LCR meter territory and these bench meters have many features lacking in the handhelds.

--- End quote ---

I did a video explaining "benchtop" LCR meters and their features:



and I also did one that shows how these kinds of features are implemented on our LCX series LCR meters



--- End quote ---

Another nice pair of videos, well done and highly informative  :clap:

You certainly have a skill for producing informative and easy to follow videos on R&S instrumentation, that should be viewed by all folks, junior or senior, interested in specific instruments and measurements :-+

Best,
Electro Fan:

--- Quote from: mawyatt on August 09, 2023, 02:01:58 pm ---Also, should mention the quality bench LCR meters higher DUT excitation currents allow Resistance measurement ranges below the ranges on popular high resolution DMMs like the KS34465A, where the lowest range is 100 ohms.

--- End quote ---

A little bit off the original topic but the KS34465A with 4 wire can measure with some reasonable accuracy down to around .01 ohm to .001 ohm or maybe even a tad better?
Martin72:

--- Quote from: pdenisowski on August 09, 2023, 10:18:30 am ---I don't have a complete list of LCR meters on the market today, but in my experience there isn't much available between the ~150 USD handheld meters and the > 1000 USD benchtop meters (like our LCX100). 

--- End quote ---

My personal "ranking" based on own experiences, from cheap to "not so cheap anymore":

Vici LCR ????? (forget the model number)
Mastech MS8911
DE5000
ET4410
Keysight U1733C
ST2830/TH2830

And now the ranking regardless of the price...

1.) ST2830/TH2830
2.) ET4410
3.) DE 5000
4.) U1733 C
5.) MS8911
6.) Vici ????

The vici is a cheap (appx 40€) meter without selectable frequency, the mastech is good but mechanical limited ( SMD-Tweezer), the keysight is disappointing for its price (appx 700€), the DE5000 is the best handheld LCR I know for it´s price, the ET4410 is a surprisingly good meter although you must take care when doing measurings at the highest frequency.
And the Sourcetronic/Tonghui is a meter you could be happy with it - to "beat" this, you must pay much, much more...
ET4410 again:
Pros vs DE5000:

- Testfrequencies in 16 steps selectable
- Testvoltage up to 2Vrms
- Inbuilt DC-Bias up to 2V
- Selectable output resistance 30/100 Ohm.
- List (a kind of sweep) function
- Best accuracy 0.1%

If you want to spend max 150...170€, take the DE5000.
If you want/could spend more, take the ET4410 (250..270€)
Otherwise go for a ST2830/TH2830.
Superb building quality high accuracy, lots of features....




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