What is the primary function of the gas in a Lindberg fire detection system?

The primary function of the gas in a Lindberg fire detection system is to act as a pressure indicator. This system typically employs a gas that expands when heated, thereby increasing the pressure in the detection tube. This pressure change can be monitored to provide an indication of a fire, as it signifies that temperatures are rising due to a fire event.

This mechanism allows for an effective way to detect fire conditions early on by translating thermal energy into a measurable pressure change, enabling timely responses to a potential fire hazard. The gas itself plays a crucial role in this reaction, as it must be sensitive to temperature changes within the detection environment. Understanding this function is essential for interpreting how the Lindberg system operates in maintaining safety within aircraft or other environments where fire detection is critical.