#675 East Tester ET4401 LCR Meter Review And Teardown

I review and teardown the East Tester ET4401 LCR Meter. Use the discount code provided to save 15% on Banggood, visit using the links below!

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[hullinstruments]

Man I’ve been waiting and waiting for someone to get a hold of one of these! From what I’ve experienced… These are great and such a wonderful asset to have on the bench! The first real affordable high quality LCR meter!!! They might have to work out a few bugs and have a few revisions in the near future, but most of these companies seem to listen to the complaints of the online community… And for the most part put an effort into improving their product.…

[jwrtiger]

Just an FYI. I just got the ET4410 and seems to be working well. I know you have the 10 kHz max test frequency model while I have the 100 kHz test frequency model. I would assume the boards are the same in all versions with just firmware and/or a couple of component differences. The date on your main board is 9/17/2018 and the date on my board is 7/31/2020. It is interesting to note they changed the power supply layout and there is now an extra heatsink and regulator. Still the same Sanoon brand smoothing capacitors. The AC cable that is zip tied to the ribbon cable is a shield cable on mine. I also have two multiturn trim pots on the main board probably for factory calibration. It looks like you have three relays while I only have the one K300, maybe a new circuit design or solid-state switching. They also beefed up the input protection and now the BNC connectors are directly soldered to the pc board. Looks like much of the analog circuitry is different or at least laid out differently. I also do not have the white residue on the main board. In your video you indicated being off by some 70 Hz on the 10 kHz frequency but it looks to be around 0.070 of a Hertz. Thank you for posting this review because it helped me make my decision to order one.

[wiedapp]

The reason the box for this meter is so large would probably be the stackability with other meters on the bench. Make it shorter and it is the odd one out, causing headaches to the customer on how to place it in the stack of already acquired test gear.
Just my guesss, though.

[johncunningham]

The calibration of the Kelvin test leads require open and shorting your test leads to complete the calibration procedure, this will help stabilize readings, got one myself, love it.

[waaos]

Good video with actual narration... You covered all of the key points well... Thanks !

[nurmirzatoshmamatov]

Hi, I have bought a ET 4410 LCR meter. However I can not connect to computer. Could you share me link of software

[redresistor]

They raised the price $50 of each model as soon as this video dropped. The $180 version is now $230. At 180 I would be in, at 230 I'm out. Available for $203 on Aliexpress. Even then I feel like it's not worth it.

[JohnDoe-cewl]

Just bought one of those LCR meters - my thoughts on the enclosure size: 1) standard for stackability 2) may be repurposed from another product already in production. Basically free tooling.

[jacek]

Good video! And comparison with DE 5000 was the hit!

[SnowLynxPreparedness]

I am looking for a meter to test air cores for antenna building - I had a couple of small meters - they are mostly useless for that.

Would you say that this meter can do the job ?

[allanwind]

Can you use it to test ESR of capacitors in circuit? I understand from the eevblog forum that the DE-5000 is borderline in this respect (600 mV).

[hullinstruments]

Sorry to comment again… But that residue is always left behind after I wash a board in alcohol. Or other solvents to remove flux and any other residue. Some of it drains down to the bottom of the board (whichever way the board is tilted)… And gets in between parts just like those reed relays… So they probably only washed this board once or maybe quickly twice. Sometimes I have to wash mine several times to get all of that residue off. Because some of the flux and search mixes with the solvent… And always drains down and leaves those white marks when the solvent evaporates.

[tomgeorge]

Did you try the BNC that you suspect as being non spec on the Rohde & Schwarz?
Have you tried a BNC plug from the Rohde & Schwarzr on the EastTester?
I notice it doesn't have a SMPS, they may need the case size to keep the transformer away from the PCB?
QC sticker ha ha ha.. It maybe better built because there was no QC test, no pressure on the assembler.

[Victor_Nsk]

BIAS 1.5 V for measuring the capacitance of electrolytic capacitors. Instructions are sometimes useful to read. It is recommended to connect electrolytic capacitors with respect to polarity

[markuskeller]

Very nice review. Thanks for that. In fact I already looked at this instrument some time ago but wasn't sure about its built quality and precision. I couldn't find much information that was really helpful. Your review is, indeed. I decided 3 weeks ago to purchase one of the DER EE DE-5000 via ebay which is currently pending in German customs since 2 weeks ... however, considering what you've reviewed and what your conclusion is about this test gear, I little bit regret to have already purchased the DER EE device too quick... even though it's much cheaper than the ET4401 ;) Missed the precision/resolution thing ... damned. At least the DER EE ultimately requires much less space on the workbench :)

[e_channel]

Thanks for your teardown. I was wondering that there is no AC Line Filter or did I missed something. Just ordered my ET4410 from banggood for 248€ Promo.

[MyMcMichael]

The biggest problem i see on this device is safety. The mains cable is touching the voltage regulators heatsink. Chinese are often undersizing the heatsinks, so they get damn hot

[kaganarisut]

Hi. Do you know what is the main difference between ET44 series and ET45?

[KeiJazz]

I just received my ET4510 LCR Meter. It works great and the test frequency can be set at random frequencies up to 100kHz. Does anybody know more about the RS232 and USB host interfaces on the back side? I'ld really like to automate a frequency sweep. The manual has no details on this.

[stevenspmd]

Interesting, I picked up a ET3240 and it seems to show mains (120V 60Hz) noise; wonder if separating the cabling would have any effect.