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BATTERY OPERATION AND MAINTENANCE
Chapter 6
BATTERY OPERATION AND MAINTENANCE
The Infusomat® Space is equipped with the latest NiMH-battery. It has an operating
lifetime of 4 hours at 100 ml/h when new. For optimal treatment of the battery, the
device is equipped with protection against overcharge and deep depletion. The battery
pack is charged by the pump during connection to mains. When disconnected from
mains or in case of power failure, the pump automatically switches to battery power.
Note:
Prior to a longer storage of the pump (> 0,5 months) the battery pack must be
completely charged and then removed from the pump. Before changing the battery,
always disconnect the pump from the patient and switch off the device.
The battery status indicator is a trend display (low, medium, high). For more detailed
information on the current battery capacity (operating time in hours and minutes)
please refer to menu item “Batt. Cap.” in the Status Menu of the Infusomat® Space.
Important information for battery self-check:
If the battery symbol is blinking during mains operation, the battery is either
discharged or has a reduced capacity. In this case, the pump should not be
disconnected from mains. If it is necessary to disconnect the pump from mains power
for urgent reasons, the user should check to ensure if the battery capacity is sufficient
for the proposed use. When the battery symbol blinks permanently (>1h), the battery
must be checked by a technician and replaced if necessary.
Directions for optimal battery use:
The actual battery life may vary due to
•
ambient temperature
•
varying load (e.g. frequent boluses).
The optimal life time of a battery pack will only be reached if it's completely
discharged from time to time. A maintenance mode which conducts this battery
maintenance is built in. This function should be activated once a month. Furthermore:
•
If possible, only charge the battery if it has been completely discharged.
•
If a battery, which is not completely discharged, is charged several times, its
capacity can be reduced. Its original capacity can be reached again if the battery
is completely discharged and then recharged.
•
Under normal temperature conditions a battery can be charged and discharged
approx. 500 times before its lifetime decreases.
•
When the pump is not connected to mains power the battery discharges itself
slowly. This can occur even when the pump is not operating. The original
capacity will only be reached after several cycles of charging and discharging.
•
The battery operating time only can be realized if the pump operates
continuously with a fully charged battery at room temperature. The display of
the battery operating time on the pump is an approximate value based on the
current delivery rate. If the battery is aged it may differ from the actual
achievable operating time.
