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Wiring up digital dials?


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#16 Don't Panic

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Posted 27 December 2005 - 10:11 PM

er i think the 2nd one but i haven't connected a sender before, better to wait for someone who has to post.

#17 dklawson

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Posted 28 December 2005 - 02:10 PM

The 'T' is the item in the second link.

There isn't magic with these either. Pressed for time or money you can use regular 1/8 plumbing fittings with Teflon tape. They are more than adequate for the pressure and are routinely used.

I bought some resistors yesterday and will try them with a volt/ohm meter on the bench soon and send/post some pictures.

#18 minimanshane

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Posted 28 December 2005 - 03:31 PM

for £3.17 would it not just save me the hassel.
Perhaps could soeone give me a list of all the bits imi gonna need to wiring these in includings cables

#19 Don't Panic

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Posted 28 December 2005 - 07:06 PM

depends what its come with, i'd say get started, wire up the easy stuff first... i.e. voltmeter (and power for all the gauges) then do the 2 oil gauges. You'll learn from doing these, what is needed.

#20 minimanshane

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Posted 28 December 2005 - 10:02 PM

this the type of voltmeter I need?? http://cgi.ebay.co.u...1QQcmdZViewItem

:) What do you mean buy power? wires?? :)

#21 01smartc

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Posted 28 December 2005 - 10:17 PM

Hi there, quick question, where did you get all of your digital gauges and also how much did they cost (if u dont mind me asking). Thanks

#22 miniboo

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Posted 28 December 2005 - 10:32 PM

yeah that should be ok for what you need to do. minimanshane

#23 minimanshane

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Posted 28 December 2005 - 10:35 PM

Cheers mini boo

01smartc look here http://www.theminifo...topic=17068&hl=

Anyone know what ontpanic means by "power"

#24 miniboo

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Posted 28 December 2005 - 10:41 PM

not sure what bit you are on about with trhe power thing.

#25 minimanshane

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Posted 28 December 2005 - 10:52 PM

Dont panick wrote

i'd say get started, wire up the easy stuff first... i.e. voltmeter (and power for all the gauges) then do the 2 oil gauges


What did he mean by

and power for all the quages



#26 miniboo

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Posted 28 December 2005 - 11:10 PM

well all the gauges will need a 12v power supply via the lights to give you lighting for the gauges

#27 minimanshane

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Posted 28 December 2005 - 11:15 PM

And what type of cabling am i to get lol :)

#28 miniboo

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Posted 28 December 2005 - 11:17 PM

not sure what thickness you need to be honest.

#29 minimanshane

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Posted 28 December 2005 - 11:22 PM

And how am i to tell lol

#30 dklawson

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Posted 29 December 2005 - 12:13 AM

Minishane, don't take this wrong, but I agree with Don't Panic that you just need to get in there and do it, learning as you go. If you installed any of the stereo stuff yourself you'll find the process similar.

Power: What he meant by power is not just the lighting. Yes the gauges probably have back lighting that will have to be hooked up. However, your gauges are electric and they need "electric power". That means a ground/earth connection and a switched +12v supply. The lights will also need the earth connection and a connection to the dash light's 12V supply. That's it. Power.

Wire Sizes: You aren't going to find pre-fab cables/harnesses for what you need. You are going to have to run "hook up wire" point-to-point to connect power and signal to these gauges. I can't advise you about wire sizes. In the U.S. we specify wire sizes by a scale called "AWG". In Europe it will be measured in mm^2... so you'll have to ask someone else.

FWIW, I dug out an old fuel sending unit and tested the 135 Ohm resistor with it. I put together a PDF for you. Go to:
http://home.mindspring.com/~purlawson/
and download the document named:
FuelSenderRangeAdjustment.pdf
I have pictures there showing what I'm talking about and showing that it will work.

Lastly, yes, that volt meter would have been fine. Don't take this wrong but with your apparent comfort level with electricity you'll be better off buying a unit that includes the term "Auto Ranging" in its description. Auto ranging meters require only that you set the dial to volts, Ohm, or Amps... and it handles the rest. Very easy to use.




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