What is the purpose of a float-operated transmitter in a fuel tank?

The float-operated transmitter in a fuel tank serves the essential role of sending an electric signal to the fuel quantity indicator. This device is designed to continuously measure the level of fuel within the tank. As the fuel level fluctuates, the float moves accordingly. This movement is translated into an electrical signal that provides information on how much fuel is present. The fuel quantity indicator then uses this signal to display the fuel level to the pilot, allowing for better monitoring and management of fuel resources during flight.

Understanding this action is crucial since accurate fuel measurement directly impacts safety and operational efficiency. The functionality of float-operated transmitters is integral to ensuring that pilots have real-time information about their fuel status, helping to prevent scenarios of fuel starvation or unnecessary fuel weight.