Re: (ET) Current Sense Shunt value

["SteveS" <ssawtelle fcc net>]

Thanks for the info Tom.

I think though, on the E12S and E15, a 'real' shunt was used. It shows up 
as
a part in the parts list and as a small block in the parts location 
diagram.
I may take mine out and measure it.

What I'm aiming for is to add a digital meter to measure current and
voltage. The analog gauges are best for sensing what is going on at any 
time
while running, but I'd like to confirm the actual battery voltage to be 
sure
I'm treating the batteries well. It would also give me an on-board test
meter for when things go south out in the middle of the yard. If I go
through with it I'll post details.

SteveS
E12S



----- Original Message -----
From: "Tom Coate" <tcoate coate org>
To: "SWS" <ssawtelle erols com>; <>
Sent: Tuesday, June 04, 2002 9:31 AM
Subject: Re: (ET) Current Sense Shunt value


> Steve -
>
> According to my wire table, standard annealed copper wire, 6 AWG, has a
> resistance of 0.3951 ohms per 1000 feet at 68 degrees F.  So... the 20
inch
> length in the tractor should have a nominal resistance of 0.0006585
> ohms.  I don't know if they count on some resistance from the terminals 
> on
> top of that.  In any event, it's not a lot!  So good connections make a
> huge difference.
>
> I'm not sure how the meter is calibrated (how many millivolts = full
scale.)
>
> - Tom Coate
>     E-20
>     Leesburg, VA
>
>
> At 08:53 PM 5/31/2002 -0400, SWS wrote:
> >Anyone know what the power use shunt resistor value is? Or else the full
> >scale value of the power use meter in terms of Amps? E12S if it  makes
any
> >difference.
> >
> >SteveS
> >E12S
>
>