Products > Test Equipment

LCR Meter Recommendation

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KungFuJosh:

--- Quote from: BillyO on November 04, 2024, 02:54:10 pm ---
--- Quote from: mawyatt on November 04, 2024, 01:41:07 pm ---The Protek looks interesting, altho the specs claiming a Capacitance range of 0.00001pF to 99,999uF seems questionable. 0.00001pF has an impedance at the highest frequency measurement of 100KHz of ~160GΩ!! Don't think this is quite measurable with this instrument :o

--- End quote ---
I think it means display range rather than actual measurable value range.

--- End quote ---

Maybe they meant that, but it's listed under measurements, not in the display column. Maybe those misleading practices helped kill the business in the US. 😉

nctnico:

--- Quote from: mawyatt on November 04, 2024, 01:41:07 pm ---The Protek looks interesting, altho the specs claiming a Capacitance range of 0.00001pF to 99,999uF seems questionable. 0.00001pF has an impedance at the highest frequency measurement of 100KHz of ~160GΩ!! Don't think this is quite measurable with this instrument :o

--- End quote ---
Yeah, I'd file those specs under 'misprints'. Likely the number needs to be shifted 3 zeros to the left. 10ff (femto Farad) is plenty already.

Smokey:

--- Quote from: nctnico on November 04, 2024, 04:24:55 pm ---
--- Quote from: mawyatt on November 04, 2024, 01:41:07 pm ---The Protek looks interesting, altho the specs claiming a Capacitance range of 0.00001pF to 99,999uF seems questionable. 0.00001pF has an impedance at the highest frequency measurement of 100KHz of ~160GΩ!! Don't think this is quite measurable with this instrument :o

--- End quote ---
Yeah, I'd file those specs under 'misprints'. Likely the number needs to be shifted 3 zeros to the left. 10ff (femto Farad) is plenty already.

--- End quote ---

Hah.  Didnt see that.  That has to be below the capacitance of whatever test set you are using to hold the part.

mawyatt:
Yeah 10aF (0.01fF) is about the capacitance of two banana plug tips facing each other as:

      +     300mm     -                                  +      C       -
----->                    <------- which equals =  ------||------ 

About ~10aF at ~300mm spacing in free space with nothing else around :o

This supports just 63 electrons at 1 volt across the capacitance ???

Best,

 

hussamaldean:
Hi,
I have this one from uni-t:
https://meters.uni-trend.com/product/ut612/#Specifications
It is a great one.
Specially it has 100KHz which help me a lot in many projects.

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