Hi! All.
G-PTAG is currently running with the Tony K type. Seems OK at present.
But must be calibrated carefully by computer link on a natural drain down
situation . Otherwise the reduction in "head" pressure by pumping out
gives inaccurate readings. If calibrating with a long ranger tank
integrating a siphon arrangement the "head" pressure is also not
accommodated across the siphon. By the laws of physics I think it should be
but don't ask me why in my case it doesn't. Therefore had to do a natural
drain down of the whole system with the bottom of the Long Range Tank
temporarily connected to the reserve water drain pipe, then on completion of
the calibration disconnect the bottom drain and reconnect the siphon pump
instead.
Regards
Bob Harrison G-PTAG
> -----Original Message-----
> From: owner-europa@aztec.houxou.com
> Subject: Re: Fuel Tank shape
>
>
> >Hello all,
> >My fuel tank does not have a level top. Where the two molded
> pieces come
> >together along the top seam there is a sag between the front and back
> >edges of the tank of up to 3/8" in the middle. Does anyone else
> have this
> >situation? I haven't cut an opening yet, but I want to install
> an access
> >panel in the tank top for a capacitance fuel probe and to have a way to
> >clean out the tank. I'm wondering if a flat cover plate will pull the
> >tank top surface together for a good seal.
> >Dan Geldermann
> >A-139
>
> My choice of fuel contents gauge would now be a pressure sensor type. Non
> invasive, simply connect the sensor to either a drain connection or even
> the sight gauge.
> We tried a capacitance type but it was not very reliable, any water/
> condensation caused it to short out (the HF sensing signal) and read full
> scale, changes in fuel density caused false readings so we never really
> trusted it.
>
> Tony K has developed a good one, using bar graph LED display, I am also
> working on the same type of device (and loosely with him) . By
> the time you
> are ready to use one it will certainly be available.
>
> Graham
>
>
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