User Manual
48 Chapter 4 Alarms and alerts Welch Allyn Vital Signs Monitor 300 Series
Recoverable SpO
2
alert—escalated
An SpO
2
equipment alert is always escalated immediately to the level of a patient alarm if
it occurs when both of the following conditions exist:
• SpO
2
monitoring has begun and the monitor has recorded an SpO2
measurement
• An SpO
2
or Pulse Rate alarm limit has been set
See “Responding to a patient alarm” on page 47.
Recoverable NIBP alert—escalated
An NIBP equipment alert is escalated to the level of a patient alarm whenever both of the
following conditions exist:
• Two consecutive NIBP equipment alerts occur while the monitor is taking
automatic NIBP/PR measurements
• Alarms are enabled
See “Responding to a patient alarm” on page 47.
Nonrecoverable alerts
When the monitor detects a nonrecoverable equipment problem, it does the following:
• Displays an error code in the SYS window, and shuts off the display to all
other windows
• Stops patient monitoring
• Stops the pump and opens the air valve
• Activates the Nurse Call relay (if connected)
• Produces an audible tone
• Shuts down as soon as is pressed or one minute has elapsed
Response
For both recoverable and nonrecoverable equipment alerts, respond as follows:
1. Press to immediately silence the alert tone.
2. Determine what caused the alert and correct the problem.
Note
For information about a battery alert, see “Battery low warning” on page 65 and
“Battery failure” on page 65.