What is the purpose of a supervisory device in a sprinkler system?

A supervisory device plays a crucial role in maintaining the operational integrity of a sprinkler system. Its primary function is to monitor and ensure that the sprinkler system is in proper working order, thus providing an added layer of safety.

This involves regularly checking the condition of various components, such as valves and alarms, to confirm that they are functioning correctly. If an issue arises—such as a valve being closed or an abnormal condition being detected—the supervisory device alerts personnel, allowing for timely intervention. This proactive monitoring helps prevent potential failures in the sprinkler system during a fire emergency, ensuring that it will perform effectively when needed.

The other options focus on distinct functions that are not covered by the primary purpose of a supervisory device. Monitoring water pressure, providing emergency shutoff capabilities, or activating a water pump are critical aspects of a fire protection system, but they fall outside the specific supervisory functions that verify and report on the status of the sprinkler system itself.