Alarm Clearance Requirements
Once a monitor enters an alarm state, it will not immediately clear when the reading drops back below the alarm threshold.
To prevent false clears caused by temporary fluctuations, the system requires:
- Three consecutive measurements below the alarm level before the alarm is cleared.
This means that even if a reading briefly returns to normal, the alarm will remain active until three stable, below-threshold readings are recorded.
Rapid Rise Alarm Behaviour
The Rapid Rise Alarm operates differently from standard alarms:
- It is a one-time notification only
- It does not place the monitor into an ongoing alarm state
However, it still includes a stabilisation safeguard:
- After a rapid rise alert is triggered, the system requires three stable measurements before another rapid rise alarm can be generated.
Why This Matters
These rules are designed to:
- Reduce false alarms caused by signal noise or short-term fluctuations
- Ensure alarms reflect consistent and meaningful changes in readings
- Prevent repeated or excessive alerting within a short time period
Summary
- Standard alarms: Require 3 consecutive safe readings to clear
- Rapid rise alarms: Trigger once and require 3 stable readings before retriggering
- Purpose: Improve reliability and reduce false or repeated alerts