iVent201 Operator's Manual
31
(The iVent
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 will draw variable current while it is running, the voltages
provided by external batteries may change. To prevent switch-offs from
the external battery due to normal fluctuations in DC voltages, the
iVent
201
is programmed to average the external DC voltage reading over
time. Therefore, if the user disconnects the external battery, the ventilator
interprets this as a dying battery and will switch off the external DC
source for power. To re-enable input from the external battery source, the
user must leave the external battery disconnected for 40 seconds before
reconnecting the external battery.)
2.1.2 Internal Battery
The ventilator will switch to internal battery use when it detects
a loss of external power. When fully charged, the internal
battery can supply approximately 1 to 2 hours of power, under
typical conditions and settings.
CAUTION: The iVent
201
should only be used with a
properly functioning battery.
The battery is automatically charged when attached to an
external power source, whether the ventilator is operating, in
Standby mode, or switched off.
Batteries should undergo a full recharge procedure:
• Prior to initial use
• After prolonged storage
• Every 90 days during normal use
• If after 8 hours charging, the battery
indicator fails to indicate a full charge
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