REFLECTOR: Low Fuel Warning Sensor False Reading: SOLVED?

[Alex Balic]

Back seat/valence panel?

-----Original Message-----
From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Dave Philipsen
Sent: Monday, April 28, 2014 11:43 AM
To: reflector at tvbf.org
Subject: Re: REFLECTOR: Low Fuel Warning Sensor False Reading: SOLVED?

Are you flying without the back seat?

Dave Philipsen
Velocity STD FG
N83DP

On 4/28/2014 9:55 AM, Brian Michalk wrote:
> An update to those of you using an optical fuel level sensor.
>
> I had installed the Carlo Gavazzi sensor from McMaster Carr (
> http://www.mcmaster.com/#liquid-level-sensors/=rqf988 ) because it's a 
> solid state optical sensor that should never wear out.
>
> I have had problems with it falsely indicating a low fuel situation in 
> the sump.  Finally yesterday while flying I deduced that whenever I 
> flew west towards the sun, the low fuel light would illuminate, and 
> when I flew east away from the sun, the light would extinguish.
>
> The manual does say the device doesn't work in sunlight, but I never 
> considered bright light to be the culprit.  I am going to fly with the 
> sump covered with material to confirm my suspicions. If confirmed, I 
> will be painting the sump tank so that sunlight will not penetrate the 
> sump.
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