try russell tech or their gurus at queens
>
>
> Gents+2
> I have an application with a pd pump at the bottom of a hill feeding a
> tank at the top. When the tank is full I want the pump to stop. Would
> prefer a level switch in the tank in this case, rather than a float
> valve/restrictor at tank, pressure switch/accumulator at pump. There
> is no line of sight so simple telemetry is out and I do not want to run
> a wire.
> Was wondering is anyone makes an acoustic transmitter and receiver so I
> can sent a sound signal down the pipe through the water from the tank
> to the pump.
>
> Any leads would be appreciated.
>
> Cheers
>
> Steve
>
>
>
>
>
>
> =========================================
> PipingOffice - Excel Spreadsheets for Piping Calculations
> http://www.pipingoffice.us/
> =========================================
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>
> Yahoo! Groups Links
>
>
>
>
>
>
>
[Non-text portions of this message have been removed] Received on Wed Mar 30 19:01:00 2005
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