Aspect BIS VISTA, Руководство по эксплуатации

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SECTION 6 PREVENTIVE MAINTENANCE
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6-5
6. If the Sensor Check is successful, repeat the test by pressing the [SENSOR
CHECK] touch key. The Sensor Check Graphic Screen displays. During the test
sequence, flex the cable and connections at the PIC/SENSOR, and PIC/BISx
connections. Note that gentle flexing of these cables and connectors should not
cause the Sensor Check to fail.
NOTE:
Sensor Check is used in clinical application as an indicator of the patient’s
skin conductivity. When used with a Sensor Simulator or Test Sensor, the
Sensor Check serves to test the cable conductors of the BISx and PIC, and
the status indications noted above indicate the ability of the BISx and PIC to
conduct the sensor check signal. Values that are too high indicate a need to
investigate and possibly replace the PIC or BISx.
Expected Impedance Values
Sensor Simulator Values Test Sensor Values
Electrode # Typical Range Electrode # Typical Range
1 5 K Ohms 4-6 K Ohms 1 1 K Ohms 1-2 K Ohms
2 10 K Ohms 8-17 K Ohms 2 1 K Ohms 1-3 K Ohms
4 4 K Ohms 3-5 K Ohms 4 1 K Ohms 1-2 K Ohms
3 3 K Ohms 2-4 K Ohms 3 1 K Ohms 1-2 K Ohms
6.3 Checking the Battery
The battery must be tested periodically to verify that the BIS VISTA Monitoring System will
continue to operate during power outages. To test:
1. Charge the BIS VISTA monitor by leaving it plugged into A/C power for at least 6
hours. The monitor charges while in either Standby mode (yellow light) or ON
(green light).
2. Disconnect the A/C cord from the wall supply.
3. Verify that the BIS VISTA Monitoring System operates reliably for 45 minutes.
4. Recharge the battery.
WARNING
ELECTRICAL SHOCK HAZARD: DO NOT REMOVE MONITOR
COVERS DURING OPERATION OR WHILE POWER IS
CONNECTED TO MONITOR.
GROUND WIRE LEAKAGE CURRENT MUST BE CHECKED
WHENEVER INSTRUMENT CASE IS OPENED BY A
QUALIFIED BIOMEDICAL ENGINEERING TECHNICIAN.
Caution:
Check the battery periodically by operating a BIS VISTA monitor that
has been disconnected from the wall socket and that has been charged
to full capacity (at least 6 hours of charge time). After long periods of