What is the maximum sample transport time allowed from the furthest sampling port to the detector?

The maximum sample transport time allowed from the furthest sampling port to the detector is established to ensure that the air quality is monitored accurately and in a timely manner. When responding to potential fire scenarios, every second counts, as it can affect the overall safety of occupants and the efficiency of fire response measures.

In this context, 120 seconds is the correct answer because it aligns with the standards and guidelines that help to ensure that any smoke or particulate matter is detected promptly. A longer transport time could delay the detection of smoke or fire, which could have serious consequences for safety and property protection.

This timeframe allows sufficient time for air samples to reach the detector, providing reliable data for effective system performance. It ensures that fire alarm systems are responsive enough to react to hazardous conditions without excessive delay, which is critical for the timely activation of alarms and implementation of safety protocols.