[DeTomaso] Electrical questions--HELP!

[Christopher Kimball]

This is amazing and seems counter-intuitive to me--when I hooked up the fan 
relays' main power, I purposely went directly to the positive terminal of 
the battery (as I did with the main stereo amplifier's power cable precisely 
so I would (I thought) avoid the car's electrical system completely.

I took electronics in college a LONG time ago, and my memory is fuzzy these 
days, but if the fans are grounded directly to the frame (as they are now) 
and the power is going to the fan motors directly from the batery's positive 
terminal (which it is), how can the ammeter even be involved in the circuit?

I'm not questioning that you are correct, I just need to understand what I'm 
missing!

Thanks

Chris


>From: SOBill at aol.com
>To: Thomas.Tornblom at hax.se, chrisvkimball at msn.com
>CC: detomaso at realbig.com
>Subject: Re: [DeTomaso] Electrical questions--HELP!
>Date: Sun, 29 Apr 2007 13:59:43 EDT
>
>
>
>Thomas is absolutely correct.
>
>The ammeter is intended to only show the current flowing into or  out of 
>the
>battery.
>
>If you connect a load on the battery side of ammeter, the  current coming
>from the alternator to supply that load will cause the ammeter to  
>erroneously
>indicate a charging current going into the battery.
>
>All loads in the car should be connected to the terminal of the  ammeter
>which comes from the alternator so that only charge or discharge  currents 
>from
>the battery flow thru the ammeter.
>
>
>
>In a message dated 4/29/2007 2:00:02 AM Pacific Daylight Time,
>Thomas.Tornblom at hax.se writes:
>
>Do you  have any consumers connected directly to the battery instead of
>through  the cars wiring?
>
>The new fans perhaps?
>
>If so, then any current  these consumers are using will have to go
>through the ammeter and it will  indicate that it is charging the
>battery, when in fact the current goes to  the consumer instead of to the
>battery.
>
>
>
>
>
>SOBill  Taylor
>sobill at aol.com
>
>
>
>************************************** See what's free at 
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