The display screen shows the following items (depending on the activity in progress):
Elapsed time — Shows the total time (in hours, minutes, and seconds) since the unit was
turned on. The counter resets to 00:00:00 after 23 hours, 59 minutes, and 59 seconds, or
when the unit is turned off.
ECG size — Shows the amplitude scale for the displayed ECG in centimetres per millivolt
(cm/mV). The device adjusts the scale automatically.
Heart rate and heartbeat symbol — (Manual and ECG monitoring modes only) Shows the
current heart rate in beats per minute. The symbol flashes with each detected heartbeat
Soft key labels — Labels for the soft keys appear at the bottom of the display directly
above each soft key to indicate its function.
Text prompts and messages — In semiautomatic mode, text prompts guide the rescuer.
In all modes, messages alert the operator about problem conditions.
ECG rhythm — Displays the patient’s ECG.
Shock symbol and number of shocks delivered — Shows the number of shocks delivered
since the unit was powered on.
Current mode — Displays MANUAL in manual mode, or MONITOR in ECG monitoring
mode. No mode label appears in semiautomatic mode.
