Need:Timer/Delay diagram

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Fox4dr

Member - Posts: 1

Joined: September 11, 2003

Posted: September 11, 2003 at 11:24 AM / IP Logged

The temp in my car climbs about 20 degree's after shut down and I 'd like to set up a delay or timer to keep the electric fan running for about 2-3 minutes. I know this helps as I do this by turning it back on to run after shut down. This is not a factory deal,fan is controlled by an in the rad probe,switched by relay and obviously controlled by run 12v .

Thanks a heap

Bill

Rox0rz_Carz0rz

Member - Posts: 15

Joined: June 03, 2003

Location: Canada

Posted: September 12, 2003 at 10:45 PM / IP Logged

probably the easiest would be to use a big-asses car-audio capacitor (perhaps a 2 ferad), just make sure you use a diode to keep it from discharging into any other system but ur fan.

Not sure if this'll accually work, just i theory that popped into my head as i'm sitting here deprived of sleep Need:Timer/Delay diagram -- posted image.

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xetmes

Silver - Posts: 586

Joined: May 18, 2003

Posted: September 13, 2003 at 6:09 AM / IP Logged

i think it could easily be done with a transistor, capacitor, and some resistors... maybe if i get some time ill draw something up

Rox0rz_Carz0rz

Member - Posts: 15

Joined: June 03, 2003

Location: Canada

Posted: September 13, 2003 at 10:03 AM / IP Logged

that makes more sense, but i'm lazy. - lol

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Need:Timer/Delay diagram

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