International Biomedical AirBORNE A750i, Руководство по обслуживанию, Страница: 37 / 112

SECTION 3: OPERATING INSTRUCTIONS
Part No. 715-0080, Rev. B - 35 -
DC Power Mode
DC power can be supplied using a 12 V power source. When operating in DC power mode, the DC
OP indicator (Figure 3 - 1, item 30) will be illuminated. External DC power is supplied through a 3
conductor circular connector located on the back of the incubator (Figure 3 - 2, item 5). DC power has
priority over internal battery power. While operating in DC power mode, the battery will not be
charged.
Battery Power Mode
Battery power will automatically be selected when neither AC power nor DC power are available.
When operating on internal battery, the BAT OP indicator (Figure 3 - 1, item 31) will be illuminated.
Connecting AC or DC power will supersede battery power operation. The battery charger operates
continually when the incubator is connected to an AC power source. When charging, the green BAT
CHG indicator (Figure 3 - 1, item 28) will be illuminated. The rate at which the battery charges
decreases when the incubator is powered on. A significantly low AC line voltage will also decrease the
rate of battery charge. It takes approximately 8 hours to fully charge a completely discharged standard
26 ampere-hour battery when the incubator is supplied AC power and is powered down. If the
incubator is on and warming up, the battery charge time is two to three times longer. The incubator
will maintain an infant chamber temperature of 37

C for three hours on a fully charged battery with an
ambient temperature of 20

C.
NOTE: When not in use, the incubator should be plugged into an AC source to recharge the
battery. See SECTION 6 on BATTERY CARE.
To determine how much battery life is left, the Battery Life Display Button (Figure 3 - 1, item 26) can be
pressed to display the status of the battery on the Main Display Screen (Figure 3 - 1, item 8). In this
mode, the Battery Life Display Indicator (Figure 3 - 1, item 12) will be illuminated. When operating on
AC power, the Main Display Screen will indicate the state of charge of the battery as an estimated
percentage (to the nearest 20%). A fully charged battery will display 100% and a battery which has
almost reached its safe discharge level will display 0%. When the incubator is operating from battery
power or external DC power, the Main Display Screen will indicate the battery voltage (to the nearest
0.3 volt). Regardless of the power source, error code E03 will be reported if the battery voltage is
outside of the 9.0 volt to 14.5 volt range. To continue normal operation, the battery voltage must be
above 10

0.3 volts.
For general operation, the use of external AC or DC power is HIGHLY RECOMMENDED . The internal
battery should be used only when the incubator has no other energy source available.