Aspect A-2000 BIS - Digital Signal Converter (Dsc); Patient Interface Cable (Pic); Bis Sensor

SECTION 2 INSTALLATION AND PREPARATION FOR USE
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2-10
2.3.1.4 Integral Battery
A rechargeable nickel-hydride battery inside the monitor provides approximately 20
minutes of back-up power when power cannot be supplied via the power cord.
Recharge time is approximately 4 hours.
When the battery reaches a low power condition, the monitor will beep and blink the
battery symbol displayed on the screen. In addition, a battery low message will blink
continuously on the screen.
Caution:
Check the battery periodically, by operating an A-2000 that has been
disconnected from the wall socket and that has been charging the
battery for at least 4 hours. After long periods of storage (e.g., more
than 1 month) it may be necessary to cycle (charge, then discharge)
the battery a few times to get full charge capacity. If the A-2000 fails
to operate reliably from the battery for 20 minutes, battery
replacement is required.
The A-2000 contains an internal Nickel-Metal-Hydride battery. The
battery must be removed by a qualified service technician and
disposed of or recycled in accordance with the national laws of the
country. Contact Aspect Medical Systems, Inc. or the local
distributor for servicing of battery.
2.3.2 Digital Signal Converter (DSC)
The Digital Signal Converter is used to receive patient EEG signals. It is located close to
the patient's head where the EEG signal is less subject to interference from other
medical equipment. The DSC amplifies and digitizes the signals so that they are
received clearly by the monitor.
The Digital Signal Converter is shown in Figure 3. The long flexible Monitor Interface
Cable connects to the front of the monitor, and the shorter "DSC pigtail" cable connects
to the Patient Interface Cable (PIC).
The attachment clip on the DSC is used to secure it in a convenient location near the
patient's head.
Caution:
Do not open Digital Signal Converter for any reason. The seal to
prevent liquids from entering the Digital Signal Converter may be
damaged if opened. Service or repairs must be performed only by
qualified biomedical technicians.
2.3.3 Patient Interface Cable (PIC)
Aspect's BIS Sensor Patient Interface Cable (see Figure 3) connects the DSC to the BIS
Sensor.
2.3.4 BIS Sensor
After the BIS Sensor has been placed correctly on the patient's head, it is connected to
the PIC.