I installed the Dynon heated pitot tube and controller in my 601XL wing and am testing the wiring. I connected the ground wire and verified that 12 Volt is measured between the indicator wire and the 12 Volt supply. Then I connected the supply line (red) to the 12 Volt battery, the indicator wire kept indicating 12 Volt, and a soft hum was heard from the controller. I didn't feel any temperature increase on the pitot. Then I measured the current that flows into the controller, after some some jumping back and forth between 80 and 150 mA the current settles at only 159 mA.
The current seems too low and I don't feel any temperature increase on the pitot. Wiring seems to be connected correctly and I measure ~12 Volt between red and black wire. Wires between controller and pitot are all connected. Any ideas what to verify next ?
The current seems too low and I don't feel any temperature increase on the pitot. Wiring seems to be connected correctly and I measure ~12 Volt between red and black wire. Wires between controller and pitot are all connected. Any ideas what to verify next ?