GE HEALTHCARE CARESCAPE Monitor B450, Техническое руководство

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CARESCAPE Monitor B450
136
2062973-003
10.4 Monitor battery maintenance
The lithium-ion (Li-Ion) battery is a rechargeable battery containing lithium-ion cells. Each
battery contains an integrated electronic fuel gauge and a safety protection circuit.
The following are facts about lithium-ion battery technology:
−
The battery discharges on its own, even when it is not installed in the equipment. This
discharge is the result of the lithium-ion cells and the bias current required for the
integrated electronics.
− The capacity loss of the battery degrades significantly at higher temperatures.
−
As the battery ages, the full-charge capacity of the battery degrades and is permanently
lost. As a result, the amount of charge that is stored and available for use is reduced.
The following terms are used to define the battery capacity:
−
Design capacity — The theoretical capacity of the battery cells when the battery is new.
− Full-charge capacity — The actual amount of charge the battery can store and deliver.
−
Remaining charge capacity — The amount of full-charge capacity currently remaining in
the battery. This is a percent of full-charge capacity.
10.4.1 Use recommendations
GE recommends the following methods to improve battery performance:
−
Location — Position the equipment in a location that does not artificially increase the
operating temperature of the batteries.
− Conditioning guideline — Condition the battery when a Condition Battery A or Condition
Battery B message is shown on the monitor screen. The condition cycle recalibrates the
electronic fuel gauge.
10.4.2 Storage recommendations
GE recommends storing the battery outside of the device at a temperature between 20°C to
25°C (68°F to 77°F).
10.4.3 Testing the battery charge
Before installing a battery, verify the battery’s state of charge. Press the green
TEST
button on
the battery. The number of charge level indicator LEDs that illuminate indicates the
approximate charge remaining in the battery.
− Four LEDs illuminated: 75% – 100% of full-charge capacity.
−
Three LEDs illuminated: 50% – 74.9% of full-charge capacity.
− Two LEDs illuminated: 25% – 49.9% of full-charge capacity.
−
One LED illuminated: 10% – 24.9% of full-charge capacity.
− One LED flashing: < 10% of full-charge capacity remaining.
10.4.4 Charging a battery
The battery is charged whenever it is installed into the patient monitor and the patient monitor
is connected to an AC power source. The battery is charging both when the patient monitor is
turned on and when it is in the standby mode.
Battery is charging as long as the orange battery charging LED indicator is lit.
To check the battery charge status, select
Monitor Setup > Battery Status > Advanced .