Treaton MV200, Руководство пользователя

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4.2 Reserve power supply
4-3
4.2 Reserve power supply
4.2.1 Built-in accumulator
In case of sudden shutdown of mains supply the device has the reserve power supply - 2 built-
in accumulators. These are the pressurized, explosion-proof acid rechargeble accumulators that
don’t need any maintenance. Capacity of each accumulator is 7.2 A/h at the 12 V.
In case of sudden shutdown of mains supply the device will automatically
operate from the reserve power supply.
Due to the built-in flow generator, mode of ventilation will not be changed.
At operation of the device from the built-in accumulator light indicator "POWER" is switched off,
and the graphic symbol of accumulator condition on the display (Figure 4.4, position 4) changes
the color from green to yellow. Furthermore, alarm signal of medium priority "No mains voltage"
is activated.
The device can operate when powered from the new completely charged accumulator not less
than 4 hours. In average conditions, at respiratory rate 15
-
20
1
/min and tidal volume 500 - 700
ml (minute volume of ventilation about 10 lpm), the device can operate from completely charged
accumulator not less than 6 hours.
Level of charge of the built-in accumulator can be controlled by the graphic symbol on the de-
vice display (Figure 4.4, position 4). The figure in the centre of the symbol shows the level of the
remained charge (the maximum value 100 corresponds to completely charged accumulator).
If charge of accumulator provides less than 10 minutes of device operation, the high priority
alarm signal "< 10 min left" is activated.
At activation of the high priority alarm signal "< 10 min left" try to restore
mains supply, if it is impossible, immediately prepare other means for the
patient ventilation and be ready to use them.
The message "Accumulator is discharged" will appear on the screen of the device and the
graphic symbol of the accumulator becomes red in 2 -
3 minutes prior to switching off.
At restoration of the mains supply the device automatically changes operation to it and
ventilation modes do not change. The charge of the built-in accumulator also starts
automatically, and indicator "BATTERY" changes its color to green. The microprocessor control
system of the charger chooses the optimum current of the accumulator charge. If device is
completed with the accumulators with the charge current not less than 2.9 A, the charge of the
accumulator proceeds about 3 hours if initially it is completely discharged.
If the built-in accumulator is fully charged, indicator "BATTERY" is switched off.
When the unit is powered from external DC source, the built-in accumulator does not charge.