Return-Path: Received: from mb06.swip.net ([193.12.122.210]) by truman.olsusa.com (Post.Office MTA v3.1.2 release (PO203-101c) ID# 0-44819U2500L250S0) with ESMTP id AAA8648 for ; Sun, 18 Oct 1998 05:22:49 -0400 Received: from default ([195.82.222.77]) by mb06.swip.net (8.8.8/8.8.8) with SMTP id LAA04811 for ; Sun, 18 Oct 1998 11:22:53 +0200 (MET DST) Message-ID: <000701bdfa89$a26da480$4dde52c3@default> Reply-To: "JENS PETER JENSEN" From: "JENS PETER JENSEN" To: "Lancair Builders Mail List" Subject: Header tank float switch Date: Sun, 18 Oct 1998 11:22:46 -0000 Mime-Version: 1.0 X-Mailing-List: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> To John Cooper >>Any suggestions on which way I should install the thing?<< I tested the switch the same way as you did, but in a container with a crane at the bottom so I could simulate fuel consumption and refilling. When positioned inverted your reed switch is closed and can start your pump through a relay. The pump will run until your float reaches its almost top-end position, - then stop. Now when using your fuel, the reed switch will not close again and start the pump until almost in line with the sensor body. That feature is what I have used in my KIS system as described Oct.13. It is my solution to Marv's scenario #4...Auto fill with auto shut.off, cycling between appr. 8 and 10 gallons in a standard header tank, - but with less components. Flying in turbulence should not affect this system except for turning the pump on a bit early should the float "dive", which is unlikely. Jens - flying out of Copenhagen