REFLECTOR: Low Fuel Warning Sensor False Reading: SOLVED?
Brian Michalk
michalk at awpi.com
Mon Apr 28 21:35:39 CDT 2014
I didn't realize the URL didn't point to the sensor.
http://www.mcmaster.com/#4949k33/=rqo9c8
Mine is the 4949K33.
On 04/28/2014 06:35 PM, Tom wrote:
> What’s the part number for this sensor? This link took me to page with multiple choices of sensor types.
>
> Thanks,
> Tom
>
>
> On Apr 28, 2014, at 10:55 AM, Brian Michalk <michalk at awpi.com> 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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