4 pin metres for measuring resistance

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4 pin metres for measuring resistance

Postby wheelchairer » 05 Apr 2022, 14:09

And you need THIS https://www.aliexpress.com/item/4000080 ... mainSearch

with 4 connections to measure low resistance as an AC Impedance on cells. Doing what the PL8 does isnt accurate. I have one.
I did by one of those metres, but when it arrived from China it didn't work properly. Made no sense.[/quote]
Burgerman wrote:
Are you sure the meter was at fault? Or your understanding of ohms law and the meter configuration? Mine works great.

good question.

https://youtu.be/WOgPgNx8ODc
C4/5 tetra
BM 8 mph 8mph linix R-net 150Ah lith
Tom BM clone needs 8mph linix, R-net odyssey batteries
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Re: 4 pin metres for measuring resistance

Postby Burgerman » 05 Apr 2022, 18:11

A private video...
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Re: 4 pin metres for measuring resistance

Postby wheelchairer » 07 Apr 2022, 11:41

Burgerman wrote:A private video...

now public
https://youtu.be/WOgPgNx8ODc
C4/5 tetra
BM 8 mph 8mph linix R-net 150Ah lith
Tom BM clone needs 8mph linix, R-net odyssey batteries
Lifestand motion tech 5.6 mph R-net 112Ah lith
wheelchairer
 
Posts: 315
Joined: 29 Mar 2021, 18:34

Re: 4 pin metres for measuring resistance

Postby Burgerman » 07 Apr 2022, 12:22

Wrong settings. Or test lead not connected correctly or wires unsoldered or something.
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Re: 4 pin metres for measuring resistance

Postby wheelchairer » 13 Apr 2022, 15:47

Burgerman wrote:Wrong settings. Or test lead not connected correctly or wires unsoldered or something.


I put both the settings on automatic just to trying get a result.is there anything else I can put the settings to?

The test lead is definitely connected properly.

"Wires unsoldered" what do you mean by that?
C4/5 tetra
BM 8 mph 8mph linix R-net 150Ah lith
Tom BM clone needs 8mph linix, R-net odyssey batteries
Lifestand motion tech 5.6 mph R-net 112Ah lith
wheelchairer
 
Posts: 315
Joined: 29 Mar 2021, 18:34

Re: 4 pin metres for measuring resistance

Postby Burgerman » 13 Apr 2022, 18:05

If I set auto or autoV just by turning on, and read say a common 18650 cell, I get 4.17V and 13.77mOhm.

As long as all four contacts are across both ends of the cell.

If yours does not do that then you have set it to something other than standard settings. Or one of your 4 wires is unsoldered or broken, or the meter is faulty.
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