What activates when the backup or lag pump is running in Level 1 medical-surgical vacuum systems?

In Level 1 medical-surgical vacuum systems, when the backup or lag pump is activated, the local alarm is typically triggered. Local alarms are designed to provide immediate notification at the location of the equipment, often indicating that the backup system has engaged due to the primary pump's inability to maintain the required vacuum levels. This allows for quick awareness and action by medical personnel on site, ensuring the continuous operation of the system.

This type of alarm serves as an essential safety feature, enabling staff to respond promptly to potential issues with the vacuum system, such as a drop in performance or failure of the primary pump. The local alarm focuses on immediate notification for those closest to the equipment, whereas master alarms typically signal issues across a broader system, and primary alarms are related to the main operational aspects rather than backup systems. Emergency shutdowns would refer to a different situation where shutting down the system is necessary to prevent safety hazards, not merely indicating that a backup pump is activated.