Welch Allyn 300 Series Vital Signs Monitor - User Manual - Manual (Page 73)

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Reference
Battery Operation
Battery Low Warning
When the battery charge is low, a warning tone sounds and the Low Battery indicator
flashes continuously. From the time
comes on, the battery has enough charge
remaining to perform at least one of the following over the next hour:
• 20 NIBP cycles
• 30 minutes of SpO
2
monitoring
• 20 predictive temperature determinations
• a single printing of 99 stored data sets
To avoid a shutdown of the monitor due to battery failure, plug in and connect the AC
power adapter.
Battery Failure
If the monitor continues to run on battery power after comes on, the battery
eventually fails. Battery failure is indicated by the following:
• flashes continuously.
• A short tone repeats continuously. Pressing does not suppress this tone.
• The message LOW BATTERY is displayed in the message window.
• An error code is displayed in the systolic window (SYS) for 10 seconds, and then
all monitor displays are blanked.
• An error signal—2 short tones—sounds once.