So, we’ve had this low level switch function in our sump tank for awhile. And it’s always sucked. We started out with the factory’s standard float switch wired to a lamp in the panel, but it would nuisance alarm at altitude and at high power/high angle of attack. I bought a VP03E to alleviate these problems, since it’s optically based it should always be accurate (if there’s fuel in the tank, it says full). However, this is a solid-state device, and as such never really operated like a proper binary system. Sure it was bright when it was empty, but it was always sort of lighted even when full. Maybe I had it hooked up wrong, I’m not sure, but this year when we filled it up, the light was always bright. I learned a lot more about these devices than I ever cared to, but in the end I just got a new one and hooked it up to a relay to get the functionality that I wanted. Call me a cheater, I don’t care.

Posted By: Brett Ferrell
Sunday April 4th, 2010 at 9:07 PM

Categories: Aircraft Power Instrument Panel Strakes
Tags: Building Fuselage Instrument Panel Strakes

One response to “Sump Warning Light”

  1. Document says:

    […] got the new sump fuel level (optical) sensor installed today. It’s a VP03E, by Carlo Gavazzi, just follow the link for purchasing […]

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