Aspect Medical Systems BISPECTRAL INDEX A-2000, Service Manual

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SECTION V PREVENTIVE MAINTENANCE, CARE AND CLEANING
- 5-2 -
5.2
ROUTINE MAINTENANCE
The A-2000 monitor is designed so that no periodic adjustment or calibration is required.
5.2.1
Checking the Battery
The battery must be tested periodically to verify that the A-2000 will continue to operate
during power outages. To test:
1. Charge the A-2000 by leaving it plugged in with the power ON for 4 hours.
2. Disconnect the A/C cord from wall supply
3. Verify that the A-2000 operates reliably for a minimum of 20 minutes.
4. Recharge the battery.
Caution:
Periodically check the battery by operating an A-2000 that has been
disconnected from the wall socket and which has been charging the battery
for at least four hours. After long periods of storage (e.g. > 1 month) it may
be necessary to cycle (discharge, then charge) the battery a few times to get
full charge capacity. If the A-2000 fails to operate reliably from the battery for
twenty 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 a replacement 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.
5.2.2
Checking Leakage Current
Leakage current is a primary indicator of electrical shock hazard to personnel making
contact with any exposed outer surface of the equipment. Each A-2000 BIS Monitor is
carefully checked at the factory to verify that leakage current meets the UL2601 and
IEC601-1 safety standards.
The A-2000 should be routinely checked for leakage current at least once a year.
Always check the leakage current after a saline or blood spill, or immediately after a major
surge in the house electrical system and after every time the monitor case has been
opened.
Keep in mind that liquids such as saline and Ringer’s as well as blood are all excellent
conductors of electricity. Avoid touching any part of the system with wet hands. Always
work with clean, dry hands.
WARNING:
SHOCK HAZARD: DO NOT ATTEMPT TO DISCONNECT THE
POWER CORD WITH WET HANDS. MAKE CERTAIN THAT YOUR
HANDS ARE CLEAN AND DRY BEFORE TOUCHING THE POWER
CORD.