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Figure 6: On-Screen Power Status Indicator
Icon Icon Name Power State
Power
When the iVent
TM
201 is connected to an AC
power supply, the screen shows a 3-pronged
power outlet icon.
Power
disconnect
When disconnected from the AC power supply,
the 3-pronged outlet icon is displayed with a red
“X” throughout.
DC power
connected
and AC
power
connected.
When connected to an external DC power supply
such as a battery, the screen shows “EXT” in blue
No External
battery
connected
When disconnected from the DC power supply,
the screen shows “No EXT” in black
CAUTION If the screen flashes “EXT” in red, the external battery voltage is low.
Replace the battery at once. Ensure adequate power is immediately
available
If the external battery connector is removed from the iVent
TM
201 IT MUST REMAIN
DISCONNECTED FOR 40 SECONDS before plugging it back in.
NOTE The iVent
TM
201 is designed to switch off the external DC battery if the
external battery voltage drops below 10 volts, in order to prevent
damage to the external battery. Some batteries may pose a fire hazard if
discharged below specified minimum charge levels. Because the
ventilator draws variable current while it is operational, the voltages
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