Which instrument is used to monitor the proper operation of an electric deicing system onboard?

The amp meter is crucial for monitoring the proper operation of an electric deicing system. This instrument measures the electric current flowing through the deicing elements. When the deicing system is activated, it draws a specific amount of current based on its design and the environmental conditions. By using an amp meter, technicians can determine whether the system is functioning correctly; if the current draw is too low, it may indicate a problem such as a failure in the heating element, while a draw that is too high could suggest a short circuit.

Monitoring the current is essential to ensure the electric deicing system operates within safe and effective limits, thereby preventing both underperformance and potential damage to the system. A voltmeter, while useful for checking voltage levels, does not provide direct information about the operational performance of the heating elements. Similarly, a pressure gauge is more relevant for fluid systems, and a temperature indicator might provide some insight into the heating but does not directly reflect the electrical performance essential for deicing operations.