Matronics Email Lists :: View topic - Extending capacitive fuel sensor lead?

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Extending capacitive fuel sensor lead?

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

james(at)etravel.org
Guest

Posted: Fri May 13, 2011 6:51 am Post subject: Extending capacitive fuel sensor lead?

Gents, 



I've bought three Kingston capacitive fuel sensors for my Jodel project.  They each provide a 0-5V calibrated output, which I'll be using to display the three fuel levels on a home-made graphical 2-1/4" instrument (another side project...)

 



The rear tank sensor has a combined probe and electronics, but the two wing tank senders have a separate probe, linked to a little box of electronics via a foot-or-so-long lead.  The lead has a small connector, a "FAKRA" SMB coax connector, Digikey part number ARF1250-ND.  The lead is made of this very thin wire, that looks as though it's spiral wrapped in paper.  Sorry, that's a bit of a sketchy description.

 



The wing tanks have recesses for the senders and a tube, from the recess, for the lead to go along.  The trouble is, the SMB connector is too big to fit along this tube.  

So, I'm wondering if I can cut the wire and, for example, put a couple of DB pins in the conductors.  Then I could feed them in, join the pins, and cover with heatshrink. Or, perhaps I could just subtly extend the cables with solder and heatshrink.

 



Any experiences on this sort of problem would be appreciated very much.  

Many thanks in anticipation,



James

--

Jodel D150 in progress (90% done...)

 

  [quote][b]

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

nuckolls.bob(at)aeroelect
Guest

Posted: Fri May 13, 2011 9:45 am Post subject: Extending capacitive fuel sensor lead?

At 09:48 AM 5/13/2011, you wrote:

 	  Quote: 	
		  Gents,�



I've bought three Kingston capacitive fuel 

sensors for my Jodel project. � They each 

provide a 0-5V calibrated output, which I'll be 

using to display the three fuel levels on a 

home-made graphical 2-1/4" instrument (another side project...)



The rear tank sensor has a combined probe and 

electronics, but the two wing tank senders have 

a separate probe, linked to a little box of 

electronics via a foot-or-so-long� lead. � The 

lead has a small connector, a "FAKRA" SMB coax 

connector, Digikey part number ARF1250-ND. � The 

lead is made of this very thin wire, that looks 

as though it's spiral wrapped in paper. � Sorry, 

that's a bit of a sketchy description.



The wing tanks have recesses for the senders and 

a tube, from the recess, for the lead to go 

along. � The trouble is, the SMB connector is 

too big to fit along this tube. �



So, I'm wondering if I can cut the wire and, for 

example, put a couple of DB pins in the 

conductors. � Then I could feed them in, join 

the pins, and cover with heatshrink. Or, perhaps 

I could just subtly extend the cables with solder and heatshrink.



Any experiences on this sort of problem would be appreciated very much. �



Many thanks in anticipation,


	


    Talk to the folks who made the product. There's a dozen

    ways to configure capacitive fuel sensor/gage systems

    each with it's own system integration limits.



    As a GENERAL rule, don't mess with coax lengths unless

    the installation instructions specifically offer techniques

    for doing it. Ordinary wire, including shielded wires, can

    generally be extended to any necessary length. But call the

    folks that built the thing. They know more about it than

    anybody else.



    Bob . . .

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

james(at)etravel.org
Guest

Posted: Fri May 13, 2011 10:05 am Post subject: Extending capacitive fuel sensor lead?

Yes, I guess so...



By the way, I've just realised that I wrote Kingston... but meant Princeton!  

James



On 13 May 2011 18:43, Robert L. Nuckolls, III <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)> wrote:

 [quote]--> AeroElectric-List message posted by: "Robert L. Nuckolls, III" <nuckolls.bob(at)aeroelectric.com (nuckolls.bob(at)aeroelectric.com)>

  

 At 09:48 AM 5/13/2011, you wrote:

  	  Quote: 	
		   Gents,Â

 

 I've bought three Kingston capacitive fuel sensors for my Jodel project. Â They each provide a 0-5V calibrated output, which I'll be using to display the three fuel levels on a home-made graphical 2-1/4" instrument (another side project...)

  

 The rear tank sensor has a combined probe and electronics, but the two wing tank senders have a separate probe, linked to a little box of electronics via a foot-or-so-longÂ lead. Â The lead has a small connector, a "FAKRA" SMB coax connector, Digikey part number ARF1250-ND. Â The lead is made of this very thin wire, that looks as though it's spiral wrapped in paper. Â Sorry, that's a bit of a sketchy description.

  

 The wing tanks have recesses for the senders and a tube, from the recess, for the lead to go along. Â The trouble is, the SMB connector is too big to fit along this tube. Â

 

 So, I'm wondering if I can cut the wire and, for example, put a couple of DB pins in the conductors. Â Then I could feed them in, join the pins, and cover with heatshrink. Or, perhaps I could just subtly extend the cables with solder and heatshrink.

  

 Any experiences on this sort of problem would be appreciated very much. Â

 

 Many thanks in anticipation,

 	
 

    Talk to the folks who made the product. There's a dozen

    ways to configure capacitive fuel sensor/gage systems

    each with it's own system integration limits.

 

    As a GENERAL rule, don't mess with coax lengths unless

    the installation instructions specifically offer techniques

    for doing it. Ordinary wire, including shielded wires, can

    generally be extended to any necessary length. But call the

    folks that built the thing. They know more about it than

    anybody else.

 

    Bob . . . 



 

 

 ===========

  -

 ric-List" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List

 ===========

 MS -

 k">http://forums.matronics.com

 ===========

 e -

           -Matt Dralle, List Admin.

 t="_blank">http://www.matronics.com/contribution

 ===========

 

 

 

 



[b]

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

Display posts from previous:

	Matronics Email Lists Forum Index -> AeroElectric-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum