What is a key requirement for air-sampling detectors related to airflow?

Air-sampling detectors are designed to continuously draw air from the environment to detect the presence of smoke or other particulate matter. A key requirement for these detectors is that they must operate within specific airflow rates to function effectively. This means that the airflow through the sampling pipes is crucial for the detection mechanism to accurately analyze the air for potential hazards.

The effectiveness of air-sampling detectors hinges on the balance of airflow—too much or too little can hinder their ability to accurately detect smoke particles. Maintaining the appropriate airflow ensures that the detector samples enough air to provide reliable readings while also preventing false alarms. Therefore, adherence to specified airflow rates is essential for the optimal performance of air-sampling detectors in fire alarm systems.