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Old Jun 18, 2003, 03:01 AM
Red Scholefield
Red Scholefield
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Re: [EFLT] Robbe IR Meter - was: Internal resistance

This message from "Red Scholefield" <redscho@bellsouth.net> brought to you by EFLIGHT!

The Robbe meter measures the AC Impedance, NOT the internal resistance.
There is a significant difference.

>From the web site mentioned:


Specification
Measurement range: 1 ... 30 cells, max. 50 V
Measurement freq.: approx. 1 kHz
Power supply: Internal: 2 x 9 V batteries
External: 9 V stabilised
mains PSU, or
8-cell NC battery,
e.g. transmitter battery

While there is some broad corrolation the AC Impeadance is quite meaningless
in the electric flight application.


Red S.
Red's R/C Battery Clinic
http://www.rcbatteryclinic.com
Check us out for "revolting" information.

----- Original Message -----
From: "Jimmy Andrews" <jandrews@singnet.com.sg>
To: <eflight@ezonemag.com>
Sent: Tuesday, June 17, 2003 9:41 AM
Subject: [EFLT] Robbe IR Meter - was: Internal resistance


> This message from Jimmy Andrews <jandrews@singnet.com.sg> brought to you

by EFLIGHT!
>
> Has anyone tried the battery IR (Internal Resistance) meter by Robbe?
> http://data.robbe-online.net/robbe_pdf/P1122_1-8422.pdf
>
> I wonder how useful and/or accurate it would be for e-fliers?
>
> Rgds,
> Jimmy




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