PSpirine
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| posted on 31/5/11 at 06:09 PM |
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Locost switch
I'm converting my oil burning Rover to twin-tanks for veg oil and I've got a valve to switch the tanks over.
Now to operate, this valve has two wires. To operate from tank A, wire 1 must have +12v, and wire 2 must be earthed. To switch over to tank B, wire 1
must be earthed and wire 2 must have +12v - i.e. switch polarity.
Is there any way I can achieve this with a simple switch like this one without resorting to the use of two relays? I'm trying to keep it simple
and CHEAP.
ON OFF LED ROCKER SWITCH RED AMBER OR GREEN | eBay UK
Or alternatively can anybody point me to a similarly inconspicuous switch with a green LED that is ON-ON or whatever the required configuration is
called?
Thanks,
Pavel
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graham-e
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| posted on 31/5/11 at 06:32 PM |
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Could you use a double pole, double throw switch? It would work like an electric window switch..
Circuit Diagram..
(http://forums.pelicanparts.com/uploads8/Power+Window+switch1150393107.jpg)
Switch..
(http://cpc.farnell.com/apem/646h-2/15a-toggle-metal-dpdt-on-off/dp/SW02433)
Just an idea
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Krismc
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| posted on 31/5/11 at 06:44 PM |
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Easy done, many ways - if you want the locost approach ill send you some old relays!
Built, Ivaed, Drove and now Sold - 2011 MNR VORTX RT+ 2000cc Zetec on R1 Throttle boddies.
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johnq
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| posted on 31/5/11 at 07:12 PM |
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Have a look at landrovers lightweight twin tank set up ,the tap in the cab changed tank feeds and also fuel guage sender feeds, this might suit your
needs,
looks like rain again
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rayward
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| posted on 31/5/11 at 08:50 PM |
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as said a DPDT (double pole double throw) swicth will do it easily
something like this
Waterproof Rocker Switch DPDT Centre Off (I 0 II ) 400V | eBay UK
hth
Ray
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Chippy
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| posted on 31/5/11 at 10:11 PM |
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Looks OK to me, but you will need to cut a square hole to put it in, whereas the standard togle type only needs a 12 or 13mm hole. Cheers Ray
To make a car go faster, just add lightness. Colin Chapman - OR - fit a bigger engine. Chippy
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blakep82
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| posted on 31/5/11 at 10:13 PM |
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what happens if its moved to the middle position though?
surely what you really need is a douple pole double throw on-on switch?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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PSpirine
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| posted on 31/5/11 at 11:08 PM |
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Yes, I don't want a centre-off!
I'm struggling to find a black rocker switch with a LED that's DPDT - I want one of these as it looks far more OEM than a silver toggle
switch.
I may end up using a relay setup as that way I can just use one of the existing OEM buttons and make it completely invisible. But I don't want
to deal with relays to be honest, even though I know how to wire up the circuit with a couple of them.
Thanks for confirming I need a DPDT - I'll look out for an appropriate one!
Mechanical tap ala land rovers won't work, as I'll need two of them and not keen on having agricultural valves in my leather interior
lol
Cheers all
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graham-e
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| posted on 1/6/11 at 07:53 PM |
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Try CPC.. I get all my electrical stuff of them, and delivers very fast..
This what your after??
http://cpc.farnell.com/arcolectric-switches/c1560ataab/std-rocker-non-illum-dpdt/dp/SW01555
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graham-e
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| posted on 1/6/11 at 07:56 PM |
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Although it's not illuminated sorry!
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