
8
Displays, Indicators and Controls
AC Power Adapter LED
This green LED is displayed when an external power supply is providing power
to the Model 7500FO.
NOTE:
When the external power supply is disconnected, the device
automatically switches to battery power without loss of functionality.
Low Battery LED
This amber LED indicates a low battery charge when blinking, and a critical
battery charge when lit solidly.
This LED does not indicate that the Model
7500FO is running on battery power.
WARNING: This device turns off after approximately 30 minutes when in low battery
mode.
Model 7500FO Front Panel Buttons
ON/STANDBY Button
Pressing this button once turns on the Model 7500FO. Holding this button for at
least 1 second shuts down the unit, putting it into Standby mode. In Standby
mode, all device functions are shut off, with the following exceptions:
• The AC Power Adapter LED is lit whenever the device is plugged in.
• Batteries are charged whenever the device is plugged in.
Momentarily pressing this button while the unit is on initiates an event marker.
Alarm Silence Button
This button toggles alarms between silenced and audible. Pressing the Alarm
Silence button silences the alarm for two minutes. Pressing it again (while
alarms are silenced) returns the alarms to their audible mode.
CAUTION:
The two-minute alarm silence is automatically engaged at startup.
Limits Button
This button displays the upper and lower limits for alarm indications for SpO
2
and heart rate measurements.
Pressing the Limits button allows users to access advanced menu options,
including adjusting alarm settings, alarm volume, and date and time settings. All
adjustments can be made using the Plus (+) and Minus (-) buttons.
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