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25-10-2009, 11:54
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#1
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Registered User
Join Date: Sep 2009
Location: Port Macquarie
Boat: Duncanson 34
Posts: 16
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12vdc Timing Switch
Is there a perpetual timer available where a 12v appliance can be automatically turned off and on at a regular interval.
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25-10-2009, 15:58
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#2
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Senior Cruiser
Join Date: Oct 2007
Location: San Antonio, TX/Bocas del Toro, Panama
Boat: 1990 Macintosh 47, "Merlin"
Posts: 2,844
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If you only need a few seconds, do a google search on "Game Timer". These are set up to run for a period of time every day. Can possibly be modified for longer runs.
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25-10-2009, 16:13
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#3
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Registered User
Join Date: Jun 2009
Location: Live aboard. Gold Coast QLD
Boat: Nauticat 44
Posts: 31
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If you can use a soldering iron, you could try and build your own circuit using an IC555 see link below
The 555 Timer IC
If you would like any help understanding the circuit you could send me a PM and I would be happy to help
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25-10-2009, 16:25
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#4
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Registered User
Join Date: Oct 2008
Location: Princeton, NJ
Boat: Challenger Anacapa 42
Posts: 2,097
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This should fit the bill, unless the load is more than 12 amps... Fuel System Maintenance Timer / Controller
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25-10-2009, 16:42
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#5
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Registered User
Join Date: Mar 2003
Location: Philippines in the winters
Boat: It’s in French Polynesia now
Posts: 11,368
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__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
The measure of a man is how he navigates to a proper shore in the midst of a storm!
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26-10-2009, 10:08
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#7
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Commercial Member
Join Date: Dec 2008
Location: St. Petersburg, FL
Boat: Gulfstar Long Range Trawler; 53'; BearBoat
Posts: 1,524
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Check the tech specs for the DC switching capability of the timer recommended by MarkJ to ensure they are sufficient for your load. DC switch capability (in amps or horsepower) is dramatically less than the switch's rating for AC loads.
I've used these Artisan - 2600 Repeat Cycle Timer to control an 8 amp/ 12 VDC load.
__________________
Charlie Johnson
ABYC Master Technician
JTB Marine Corporation
"The Devil is in the details and so is salvation."
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26-10-2009, 10:26
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#8
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Registered User
Join Date: Nov 2008
Location: West Coast, BC , Canada
Boat: Cascade
Posts: 595
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What do you want it to time?
__________________
Go outside and PLAY!
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26-10-2009, 13:58
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#9
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Registered User
Join Date: Sep 2009
Location: Port Macquarie
Boat: Duncanson 34
Posts: 16
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Mark J Thanks thats just what I want. Good on Ya
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