What type of signal do air-sampling detectors provide if the airflow is outside the manufacturer's specified range?

Air-sampling detectors are designed to continuously monitor the airflow for detecting smoke particles. If the airflow is outside the manufacturer's specified range, it indicates a malfunction or issue with the detector's ability to function correctly. This scenario prompts the system to generate a trouble signal, alerting the supervisory panel that the air-sampling detector is not operating within its optimal parameters.

A trouble signal is crucial because it informs personnel that immediate attention is required to ensure the safety and reliability of the fire alarm system. Maintaining the correct airflow is essential for the detector's sensitivity, and if this is disrupted, it could lead to failure in smoke detection, which could compromise safety measures in the environment being monitored.