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XJW01 Auto LCR meter review ($120 bench top LCR meter)

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indman:

--- Quote from: Specmaster on December 28, 2020, 06:57:59 pm ---That looks rather good, well done. I think it would be better if they had also included the push-in terminals like the DE-5000 so you didn't need to have those leads laying across the bench.

--- End quote ---

Thank you, I agree with you. I would also like to note the very low quality of Chinese BNC connectors. Once I got this kit, my first desire was to get rid of these substandard BNCs and replace them with Canare BNCs. :)


--- Quote from: ResistorRob on December 28, 2020, 06:59:12 pm ---I was looking at picking up the Hantek LCR meter. Both have 0.3% accuracy. The Hantek has a lot of frequency ranges up to 100K, so is there any advantage to buying this instead?

--- End quote ---
This meter has not very good reviews from the owners. A raw product, I do not recommend it for purchase.
If 100 kHz is important for you for measurements, then I advise you to pay attention to the time-tested DE-5000 or the new device from UNI-T UT622C

floobydust:
I bought an XJW01 last year "PCB Rev. 1.1", "Circuit Rev. 3.1", "Date: 2017/03/28" the price is reasonable.
Calibration instructions took a while to translate, a lot of pain and actually the hardest aspect of the kit.

They come with a cheap op-amp U108 is either TL081 or NE5532. The meter does OK, not great, I cannot read relay coil inductance or low value WW resistors (inductance) for some reason. It's as if the noise floor is poor. It struggles at 7.8kHz too, the MCU is slow.

There are several enhancements to F/W and H/W that the West does not get. They went STM32 and AD9850 DDS but the designer got tired of his work being ripped off so I think he closed off the design. The Russian's competed with their "RLC Meter Digital" design, all using HP's original design.

ResistorRob:

--- Quote from: indman on December 28, 2020, 07:07:05 pm ---

--- Quote from: ResistorRob on December 28, 2020, 06:59:12 pm ---I was looking at picking up the Hantek LCR meter. Both have 0.3% accuracy. The Hantek has a lot of frequency ranges up to 100K, so is there any advantage to buying this instead?

--- End quote ---
This meter has not very good reviews from the owners. A raw product, I do not recommend it for purchase.
If 100 kHz is important for you for measurements, then I advise you to pay attention to the time-tested DE-5000 or the new device from UNI-T UT622C

--- End quote ---

I watched a couple reviews on Youtube covering the Hantek and they gave it really high marks. I looked into pretty heavy before, but don't recall what the pros and cons were. Thanks for the heads up on the UNI-T.  Somehow I missed that one. Seems new and almost no mention of it online. Checks all the boxes of what I'm looking for. That's definitely the one I'm going for. They charge a lot more for the "e" model which adds DSR, so will probably just order the "c" version.

precaud:
There appears to be a new version of the XJW01, though it's not labeled as such, it is branded "Rod rain". Black case, 2-layer pcb with SMD components, built-in battery charger, and the BNC's are along the front edge.

https://www.ebay.com/itm/Digital-LCR-Bridge-Tester-Resistance-Inductance-Capacitance-Meter-ESR-w-Battery/284098649802

indman:

--- Quote from: precaud on December 29, 2020, 03:04:17 pm ---https://www.ebay.com/itm/Digital-LCR-Bridge-Tester-Resistance-Inductance-Capacitance-Meter-ESR-w-Battery/284098649802

--- End quote ---
No, I don't like this model. A 2-line display(or small text on LED) instead of a 4-line display significantly impairs the usability of the device. In addition, the location of the BNC connectors assumes that the device will be in a horizontal position and a person will have to look into the display from above. It also complicates a comfortable measurement environment. ;)

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