Products > Test Equipment
LCR meter opinion
Martin72:
--- Quote from: Martin72 on January 19, 2022, 09:52:09 pm ---Will take my DE5000 to work and test the 100khz against our two calibrated LCRs.
--- End quote ---
So I did today, but there was a strange thing that got me stop so far for further investigation.
At work we got a handheld calibrated LCR, keysight 1733C, and a stationary from sourcetronic.
DUT was a cap, a special one for snubbing from wima, 1µF.
First step was cap measure in itself.
Measuring with the sourcetronic, cap was 1.001µF at 100khz.
Keysight measured 0.993 µF.
DE5000 measured 0.950µF.
So far so good, but..
Keysight and DE5000 uses the alligator clip thing with short wires, the sourcetronic got kelvin clamp leads.
But for the sourcetronic we also got a test fixure with very short ways.
When I´ve used this thing, sourcetronic will measure....0.950µF.
So what to choose...must think about it, then repeat the measures from today, post them here.
Martin
Martin72:
Hi,
I´ve changed the cap, the snubber one got not 100% contact areas, as it doesn´t got normal wire leads.
So I´ve taken a MKP 1µF, 250V cap and measure it.
1Khz:
U1733C ST2830 DE5000
1.000µF 1.0008µF 1.0001µF
D0.000 D0.000 D0.000
10Khz:
1.000µF 1.0007µF 1.0000µF
D0.031 D0.000 D0.001
100Khz:
1.044µF 1.0069µF 1.0029µF
D0.141 D0.010 D0.013
Everything´s fine with the DE5000....
Next days, I´ll measure a greater value, 2.2µF or little bit higher.
Martin
mawyatt:
The SourceTronic 2830 looks like a rebranded Tonghui TH2830.
Best,
indman:
Martin72,If this is not a measurement error, then I understand that the U1733C at 10 and 100kHz is already out of the list of reliable meters? The D reading is already 10 times higher than the other 2 units.
Martin72:
Hi,
Yes, that was the surprise at this afternoon - The U1733C shows the behaviour the DE5000 should have, according to the other thread.
But let´s see what a greater values does, maybe tomorrow.
@mawyatt:
We got it from here:
https://www.sourcetronic.com/shop/en/lcr-meters/
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