GE HEALTHCARE E-PRESTN, Техническое руководство

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Patient Data module
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c. Short the gray wire (Marker Out) to the violet wire (Marker In) and observe small
x-marks in the R-waves of the displayed ECG waveforms.
Figure 7 Sample x-marks in the R-waves of displayed ECG waveforms
d. If the above test fails, perform the calibration procedure for “Analog outputs” on
page 16-28 and re-test.
e. Remove the test equipment.
f. Mark this task as complete on the checkout form.
3.3.9 Test completion
Select Discharge patient or Reset case to discard any changes made to the monitor
configuration during checkout.
3.3.10 Complete checkout form
Complete the “Maintenance check form” on page 16-55.
3.4 Battery care
The Lithium-Ion battery is a rechargeable battery containing Lithium-Ion cells. Each battery
contains an integrated electronic fuel gauge and a safety protection circuit. The processor
within the equipment communicates with both the battery and the charger.
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 self-discharge rate doubles for every 10ºC (18ºF) rise in temperature.
•
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.