Products > Test Equipment

ET432 LCR Meter - Wild Results - Range Function?

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csuhi17:
Thanks, Then according to your measurements, this is one of my worst devices. I'll keep that in mind...
That way I won't fall in love :(

Tycho_Brahe:
This is depressing.   I thought I had a decent brand/model picked out.   Oh well.   I think I still have until Feb 1 at the latest to start a return back to Amazon.   Wife bought me one for Christmas.

I emailed East Tester last night for their opinion, but haven't heard back (and may never, who knows).    I guess a Hantek could be in my future.   

Randy222:

--- Quote from: killingtime on January 22, 2024, 09:05:36 pm ---Hello,

I was attempting to take some transformer winding resistance readings with an East Tester ET432 LCR meter this evening, and was getting some very odd results.


Cycling through the range options gives wildly different results.

For a 10KΩ 5% resistor in DCR mode after performing an open & short user calibration (2 wire):

100Ω - 921.6 KΩ
1KΩ  - 98.92 KΩ
10KΩ - 9.953 KΩ
100KΩ - -9.259 MΩ (minus!)
AUTO - 9.953 KΩ

I'd expect some loss of precision as you move around the ranges, but the above are at least an order of magnitude out. There's no warning it's out by such a margin either. You just have to know.

To confuse matters a bit more, the manual lists a bunch of 'ranges' for the DCR mode that are not available on the unit. Extract from the manual attached. Manual lists 0.4Ω, 40Ω, 400Ω, 4KΩ, 40KΩ, 400KΩ, 4MΩ, 10MΩ and 20MΩ.

So either:

1) The ranges in the manual never made it into the production model or,
2) They've just copied stuff from another manual (Keysight) or,
2) I've misunderstood how ranging works on an LCR meter.

Meter has the same issues on L or C ranges as well. Exact same options for RANGE. Changing measurement speed to slow doesn't improve matters either. Using 4 wire kelvin probes has little effect.

Do any of the Keysight_U1731C / U1732C / U1733C work the same way, or have the same issues? I wouldn't expect the values to be this far out. If anyone has a U17xxx Keysight LCR I'd be interested to know what you see when manually ranging.

Thanks.

--- End quote ---
Did you scope it in DCR mode just to verify it's really DC ?

One of my old LCR meters says on the front "L C R", but R is really a Z mode, runs a fixed 1kHz. So that meter is 100% useless if I just want real component value.


--- Quote from: Veteran68 on January 24, 2024, 01:03:45 pm ---I'm generally not a fan of Hantek gear, but I have to say this 1833C LCR meter has been a pretty good one for my needs so far. I've been saying if I were buying another handheld I'd consider the Uni-T 622E or the Sanwa LCR700, but not really sure I'd need to.

I've been considering a step up to a bench LCR meter, but not one of the super expensive pro level ones. So that means the likes of the EastTester 44xx series and the RuoShui/Victor 40xx series in the $300-400 range. Based on what I've been hearing from EastTester reports lately, I'll probably steer clear of them. The RuoShui/Victor line looks like much the same hardware but seems to get better reviews, probably due to better QC and/or firmware.

Would love to have a Tonghui/Sourcetronic but can't justify spending that money for my hobby. It's not like a DMM that I'd use most every day.

--- End quote ---
What FW version is your 1833C?

Veteran68:

--- Quote from: Randy222 on January 24, 2024, 11:44:56 pm ---What FW version is your 1833C?

--- End quote ---

20210615AM
HW V1

Randy222:

--- Quote from: Veteran68 on January 25, 2024, 12:52:47 am ---
--- Quote from: Randy222 on January 24, 2024, 11:44:56 pm ---What FW version is your 1833C?

--- End quote ---

20210615AM
HW V1

--- End quote ---
I won't hijack this ET thread, but interesting, some are reporting a FW of "2023xxxxxxAM".
Thanks for noting it.

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