5.3 Default Limits for indicator and alarms
The default factory settings for the No Breath and the ETCO
2
alarms are as follows:
Low High
RR (No Breath)
3 bpm (20 s) -
ETCO
2
OFF 50 mmHg (7.0 kPa)
5.3.1 Battery Status Indicator
The Battery Status Indicator is normally lit with a steady green light in the upper right corner of the
display (Battery OK). When batteries are low, the Battery Status Indicator starts blinking (approximately
30 minutes before depletion for alkaline batteries).
(Blinking)
There will be an audible tone beep repeated every 80 seconds when batteries are low.
The terminal voltage of alkaline batteries recovers when the batteries are not in use. The remaining time
prediction is thus unreliable during the first period after power on. Nearly depleted batteries may still be
able to provide a voltage above the threshold for battery low indication, even if the internal battery
resistance is too high to provide sufficient current to start up the device next time the power on button is
activated.
To extend battery life time the EMMA display has an automatic brightness control which will be activated
during stable conditions. Any change in displayed vital parameters, alarm or pressing any button will
return the EMMA display to normal brightness.
WARNING! Replace batteries immediately when the Battery Status indicator starts blinking.
Remaining battery time depends on battery type and other circumstances and cannot be reliably
predicted. The remaining lifetime for lithium batteries may be significantly less than 30 minutes when
the Battery Status Indicator starts blinking.
WARNING! Lithium batteries may present a fire or chemical burn hazard if mistreated. Do not
disassemble, heat above 100°C (212°F) or incinerate. Dispose of used cells promptly. Keep away
WARNING! Use only Alkaline or Energizer Ultimate Lithium L92 batteries. Use of other Lithium
batteries may present a risk of fire or explosion.
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