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Flow indicator

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BobsV35B(at)aol.com
Guest

Posted: Mon Dec 02, 2013 3:45 pm Post subject: Flow indicator

Good Evening All,

  

 A few yeas ago someone on this list mentioned that a fellow had developed  an electronic gadget that could indicate whether or not fuel was flowing  through a line. It consisted of a stock AN aluminum T with the non inline  portion containing some sort of light which could tell when fuel was flowing  through the inline T portion. Nothing fancy and no measurement of the gallons or  flow rate. Just whether or not fuel was flowing. It was pure solid state. No pin  wheels or anything. Just light as I recall, and it only had to shine one way. It  did not go through the T to another sensor. Does anyone else remember that  gadget? If so, do you recall who it was that offered it?

  

 I could sure use an accurate, though economical, way to tell when fuel is  no longer being pumped through a line.

  

 Happy Skies,

  

 Old Bob

  

  

 [quote][b]

ceengland7(at)gmail.com
Guest

Posted: Mon Dec 02, 2013 5:13 pm Post subject: Flow indicator

On 12/2/2013 5:44 PM, BobsV35B(at)aol.com (BobsV35B(at)aol.com)       wrote:

     

      	  Quote: 	
		                                Good Evening All,

          

         A few yeas ago someone on this list mentioned that a fellow           had developed an electronic gadget that could indicate whether           or not fuel was flowing through a line. It consisted of a           stock AN aluminum T with the non inline portion containing           some sort of light which could tell when fuel was flowing           through the inline T portion. Nothing fancy and no measurement           of the gallons or flow rate. Just whether or not fuel was           flowing. It was pure solid state. No pin wheels or anything.           Just light as I recall, and it only had to shine one way. It           did not go through the T to another sensor. Does anyone else           remember that gadget? If so, do you recall who it was that           offered it?

          

         I could sure use an accurate, though economical, way to           tell when fuel is no longer being pumped through a line.

          

         Happy Skies,

          

         Old Bob

                   

         

       	
     These intended for flow, but they         do detect the presence of liquid:

       

     http://www.gemssensors.com/Products/Level/Single-Point-Level-Switches/Electro-optic

     

     I've got a couple that I intend to try in the situation you     describe, but I'm afraid it will take a bigger mount point than the     leg of a T. No experience yet on whether they can see fluid in     something as small as a fuel line.

     

     Another option I've considered is a low pressure sensor on the     output of the pump, with a slightly restrictive orifice after the     sensor. If pressure drops below a preset level, it would trip an     indicator.

     

     If someone already has a simple & affordable solution, I'd love     to hear about it, as well.

     

     Charlie

      [quote][b]

BobsV35B(at)aol.com
Guest

Posted: Mon Dec 02, 2013 5:31 pm Post subject: Flow indicator

Good Evening Charlie,

  

 The one I remember was built by a homebuilder and offered to the OBAM  public. His was mounted in an AN T for 3/8ths inch line.

  

 Thanks for the information provided.

  

 Happy Skies,

  

 Old Bob

  

  In a message dated 12/2/2013 7:14:55 P.M. Central Standard Time,  ceengland7(at)gmail.com writes:

  	  Quote: 	
		     On 12/2/2013 5:44 PM, BobsV35B(at)aol.com (BobsV35B(at)aol.com) wrote:



    	  Quote: 	
		            Good Evening All,

      

     A few years ago someone on this list mentioned that a fellow had      developed an electronic gadget that could indicate whether or not fuel      was flowing through a line. It consisted of a stock AN aluminum T with the      non inline portion containing some sort of light which could tell when fuel      was flowing through the inline T portion. Nothing fancy and no measurement      of the gallons or flow rate. Just whether or not fuel was flowing. It was      pure solid state. No pin wheels or anything. Just light as I recall, and it      only had to shine one way. It did not go through the T to another sensor.      Does anyone else remember that gadget? If so, do you recall who it was that      offered it?

      

     I could sure use an accurate, though economical, way to tell when fuel      is no longer being pumped through a line.

      

     Happy Skies,

      

     Old Bob

       



	
These    intended for flow, but they do detect the presence of    liquid:



http://www.gemssensors.com/Products/Level/Single-Point-Level-Switches/Electro-optic



I've    got a couple that I intend to try in the situation you describe, but I'm    afraid it will take a bigger mount point than the leg of a T. No experience    yet on whether they can see fluid in something as small as a fuel    line.



Another option I've considered is a low pressure sensor on the    output of the pump, with a slightly restrictive orifice after the sensor. If    pressure drops below a preset level, it would trip an indicator.



If    someone already has a simple & affordable solution, I'd love to hear about    it, as well.



Charlie

 	  Quote: 	
		  



	
	


 [quote][b]

ceengland7(at)gmail.com
Guest

Posted: Mon Dec 02, 2013 5:59 pm Post subject: Flow indicator

I did see this on the GEM site, but       it's for 1/2" npt:

       http://www.gemssensors.com/en/Products/Flow/Flow-Switches/FS-600%20No-Moving-parts

       

       

       On 12/2/2013 7:30 PM, BobsV35B(at)aol.com (BobsV35B(at)aol.com) wrote:

     

     [quote]                              Good Evening Charlie,

          

         The one I remember was built by a homebuilder and offered           to the OBAM public. His was mounted in an AN T for 3/8ths inch           line.

          

         Thanks for the information provided.

          

         Happy Skies,

          

         Old Bob

          

                    In a message dated 12/2/2013 7:14:55 P.M. Central             Standard Time, ceengland7(at)gmail.com (ceengland7(at)gmail.com) writes:

            	  Quote: 	
		                 On 12/2/2013 5:44 PM, BobsV35B(at)aol.com (BobsV35B(at)aol.com)                 wrote:

               

                	  Quote: 	
		                                                       Good Evening All,

                    

                   A few years ago someone on this list mentioned                     that a fellow had developed an electronic gadget                     that could indicate whether or not fuel was flowing                     through a line. It consisted of a stock AN aluminum                     T with the non inline portion containing some sort                     of light which could tell when fuel was flowing                     through the inline T portion. Nothing fancy and no                     measurement of the gallons or flow rate. Just                     whether or not fuel was flowing. It was pure solid                     state. No pin wheels or anything. Just light as I                     recall, and it only had to shine one way. It did not                     go through the T to another sensor. Does anyone else                     remember that gadget? If so, do you recall who it                     was that offered it?

                    

                   I could sure use an accurate, though economical,                     way to tell when fuel is no longer being pumped                     through a line.

                    

                   Happy Skies,

                    

                   Old Bob

                                       

                   

                 	
               These intended for flow,                   but they do detect the presence of liquid:

                 

               http://www.gemssensors.com/Products/Level/Single-Point-Level-Switches/Electro-optic

               

               I've got a couple that I intend to try in the situation               you describe, but I'm afraid it will take a bigger mount               point than the leg of a T. No experience yet on whether               they can see fluid in something as small as a fuel line.

               

               Another option I've considered is a low pressure sensor on               the output of the pump, with a slightly restrictive               orifice after the sensor. If pressure drops below a preset               level, it would trip an indicator.

               

               If someone already has a simple & affordable solution,               I'd love to hear about it, as well.

               

               Charlie

                	  Quote: 	
		  



	
             	
         

               	  Quote: 	
		  



	
     [b]

BobsV35B(at)aol.com
Guest

Posted: Mon Dec 02, 2013 6:05 pm Post subject: Flow indicator

Good Evening Charlie, 

  

 That has to be getting close!

  

 Happy Skies,

  

 Old Bob

  

  In a message dated 12/2/2013 8:00:59 P.M. Central Standard Time,  ceengland7(at)gmail.com writes:

  	  Quote: 	
		     I did see this on the GEM site, but it's for 1/2"    npt:

http://www.gemssensors.com/en/Products/Flow/Flow-Switches/FS-600%20No-Moving-parts

On    12/2/2013 7:30 PM, BobsV35B(at)aol.com (BobsV35B(at)aol.com) wrote:



    	  Quote: 	
		            Good Evening Charlie,

      

     The one I remember was built by a homebuilder and offered to the OBAM      public. His was mounted in an AN T for 3/8ths inch line.

      

     Thanks for the information provided.

      

     Happy Skies,

      

     Old Bob

      

          In a message dated 12/2/2013 7:14:55 P.M. Central Standard Time, ceengland7(at)gmail.com (ceengland7(at)gmail.com) writes:

      	  Quote: 	
		         On 12/2/2013 5:44 PM, BobsV35B(at)aol.com (BobsV35B(at)aol.com)        wrote:



        	  Quote: 	
		                    Good Evening All,

          

         A few years ago someone on this list mentioned that a fellow had          developed an electronic gadget that could indicate whether or not          fuel was flowing through a line. It consisted of a stock AN aluminum T          with the non inline portion containing some sort of light which could          tell when fuel was flowing through the inline T portion. Nothing fancy          and no measurement of the gallons or flow rate. Just whether or not fuel          was flowing. It was pure solid state. No pin wheels or anything. Just          light as I recall, and it only had to shine one way. It did not go          through the T to another sensor. Does anyone else remember that gadget?          If so, do you recall who it was that offered it?

          

         I could sure use an accurate, though economical, way to tell when          fuel is no longer being pumped through a line.

          

         Happy Skies,

          

         Old Bob

           



	
These        intended for flow, but they do detect the presence of        liquid:



http://www.gemssensors.com/Products/Level/Single-Point-Level-Switches/Electro-optic



I've        got a couple that I intend to try in the situation you describe, but I'm        afraid it will take a bigger mount point than the leg of a T. No        experience yet on whether they can see fluid in something as small as a        fuel line.



Another option I've considered is a low pressure sensor        on the output of the pump, with a slightly restrictive orifice after the        sensor. If pressure drops below a preset level, it would trip an        indicator.



If someone already has a simple & affordable        solution, I'd love to hear about it, as well.



Charlie

 	  Quote: 	
		  



	
	


 	  Quote: 	
		  



	




tp://www.aeroelectric.com/">www.aeroelectric.com

/ href="http://www.buildersbooks.com/">www.buildersbooks.com

http://www.homebuilthelp.com/">www.homebuilthelp.com

http://www.mypilotstore.com/">www.mypilotstore.com

//www.mrrace.com/">www.mrrace.com

p://www.matronics.com/contribution">http://www.matronics.com/contribution

ist href="http://www.matronics.com/Navigator?AeroElectric-List">http://www.matronics.com/Navigator?AeroElectric-List

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

	
	


 [quote][b]

glastar(at)gmx.net
Guest

Posted: Tue Dec 03, 2013 8:14 am Post subject: Flow indicator

Hello "Old Bob",



I've got mine from PPA (a former Glastar builder) and they are in my 

Glastar (highwing) warning me for unporting on a steep descent (3 

minutes warning each side). I've bought again for my RV10 for exactly 

the same reason.



http://www.pillarpointelectronics.com/sensors.html



Hope it helps some?



Cheers Werner



On 03.12.2013 02:30, BobsV35B(at)aol.com wrote:

 	  Quote: 	
		   Good Evening Charlie,

 The one I remember was built by a homebuilder and offered to the OBAM

BobsV35B(at)aol.com
Guest

Posted: Tue Dec 03, 2013 8:32 am Post subject: Flow indicator

Good Morning Werner,

  

 Great information. 

  

 As I told Rob, that is just what I remember.

  

 Thank you very much.

  

 Happy Skies,

  

 Old Bob

  

  In a message dated 12/3/2013 10:16:19 A.M. Central Standard Time,  glastar(at)gmx.net writes:

  	  Quote: 	
		  -->    AeroElectric-List message posted by: Werner Schneider    <glastar(at)gmx.net>



Hello "Old Bob",



I've got mine from PPA    (a former Glastar builder) and they are in my 

Glastar (highwing) warning    me for unporting on a steep descent (3 

minutes warning each side). I've    bought again for my RV10 for exactly 

the same    reason.



http://www.pillarpointelectronics.com/sensors.html



Hope    it helps some?



Cheers  Werner



	


 [quote][b]

jonlaury

Joined: 06 Nov 2006
Posts: 336

Posted: Tue Dec 03, 2013 8:32 am Post subject: Re: Flow indicator

Hi OB,

I used a Gems ELS 900 optic level sensor in a 1/4" npt Tee to prevent a transfer pump from running dry. I used the output to trigger a relay controlling power to the transfer pump. I clocked the installation so the sensor is 45 deg up from level. No fuel in the line = no power to the pump. Works great

The ELS 900 is an older version of the Gems 14xxx series and  comes in several flavors of thread, material and current sinking capability. Mine's polysulfone (OK with fuel) and I found it on Ebay for $5 . Wish I'd bought more. 



Good luck,

John

BobsV35B(at)aol.com
Guest

Posted: Tue Dec 03, 2013 8:44 am Post subject: Flow indicator

Good Morning John,

  

 More great data!

  

 Thanks much.

  

 Happy Skies,

  

 Old Bob

  

 Do Not Archive

  

  In a message dated 12/3/2013 10:34:44 A.M. Central Standard Time,  jonlaury(at)impulse.net writes:

  	  Quote: 	
		  -->    AeroElectric-List message posted by: "jonlaury"    <jonlaury(at)impulse.net>



Hi OB,

I used a Gems ELS 900 optic    level sensor in a 1/4" npt Tee to prevent a transfer pump from running dry. I    used the output to trigger a relay controlling power to the transfer pump. I    clocked the installation so the sensor is 45 deg up from level. No fuel in the    line = no power to the pump. Works great

The ELS 900 is an older version of    the Gems 14xxx series and  comes in several flavors of thread, material    and current sinking capability. Mine's polysulfone (OK with fuel) and I found    it on Ebay for $5 . Wish I'd bought more. 



Good    luck,

John

	


 [quote][b]

ceengland7(at)gmail.com
Guest

Posted: Tue Dec 03, 2013 11:29 am Post subject: Flow indicator

On 12/3/2013 10:33 AM, jonlaury wrote:

 	  Quote: 	
		   



 Hi OB,

 I used a Gems ELS 900 optic level sensor in a 1/4" npt Tee to prevent a transfer pump from running dry. I used the output to trigger a relay controlling power to the transfer pump. I clocked the installation so the sensor is 45 deg up from level. No fuel in the line = no power to the pump. Works great

 The ELS 900 is an older version of the Gems 14xxx series and  comes in several flavors of thread, material and current sinking capability. Mine's polysulfone (OK with fuel) and I found it on Ebay for $5 . Wish I'd bought more.



 Good luck,

 John



Hi John,
	




As I told Bob, I've had some of the Gems detectors in my parts drawer 

for years, but have never tested them for flow detection. It's great to 

hear that you've tested them & found that they work as flow sensors. Now 

I know I won't be wasting my time when I install them. 



Charlie

nuckolls.bob(at)aeroelect
Guest

Posted: Tue Dec 03, 2013 6:35 pm Post subject: Flow indicator

At 07:58 PM 12/2/2013, you wrote:

  	  Quote: 	
		  I did see this on the GEM site, but it's for 1/2" npt:

  http://www.gemssensors.com/en/Products/Flow/Flow-Switches/FS-600%20No-Moving-parts 	


    These devices are pretty sophisticated with

    a price to match.



    If you want a go/no-go detection of fluid motion

    you can set up a pair of self-heated thermistors in two legs

    of a bridge. One thermistor is situated out in

    the fluid flow path, the other is in the same liquid

    but out of the flow path . . . like the side port of

    a t-fitting.



    The electronics needed to read the two thermistors

    and detect flow is pretty simple. Radio Shack

    jelly-bean parts.



 

   Bob . . .     [quote][b]

jonlaury

Joined: 06 Nov 2006
Posts: 336

Posted: Wed Dec 04, 2013 8:51 am Post subject: Re: Flow indicator

[quote="ceengland7(at)gmail.com



Hi John,

[/quote]



As I told Bob, I've had some of the Gems detectors in my parts drawer 

for years, but have never tested them for flow detection. It's great to 

hear that you've tested them & found that they work as flow sensors. Now 

I know I won't be wasting my time when I install them. 



Charlie[/quote]



Charlie, 

One caveat is that the Gems sensor in my application indicates 'presence' but not flow.



John

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