SECTION 5 PREVENTIVE MAINTENANCE, CARE AND CLEANING
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5-4
5.2.4 Checking the Battery
Check the battery periodically by operating a BIS VISTA monitor that has been
disconnected from the wall socket and that has been charging the battery for at least 6 hours.
If the monitor fails to operate reliably from the battery for approximately 45 minutes, battery
replacement is required.
WARNING:
ELECTRICAL SHOCK HAZARD: DO NOT REMOVE MONITOR
COVERS DURING OPERATION OR WHILE POWER IS
CONNECTED TO MONITOR.
LEAKAGE CURRENT MUST BE CHECKED BY A QUALIFIED
BIOMEDICAL ENGINEERING TECHNICIAN WHENEVER
INSTRUMENT CASE IS OPENED.
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
storage, charge the battery for 6 hours to assure full capacity. If the
BIS VISTA monitor fails to operate reliably from the battery for
approximately 45 minutes, battery replacement is required.
The BIS VISTA monitor contains an internal lithium ion 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: Aspect part number 186-0208.
NOTE: The BIS VISTA monitor may not power up entirely if battery power is low.
If that should occur, connect unit to wall power and press the Reset button. (Refer to
Section 6.4 “Using the Reset Button.”)
5.2.5 Replacing the Battery
To replace the battery, you will need a Philips #2 screwdriver. Follow the instructions below:
1. Unplug A/C line cord from the monitor.
2. Lay monitor screen-side-down on a scratch-free work surface so that the
Battery/Power Supply cover is accessible.
3. Remove 4 screws from the Battery/Power Supply cover and remove the cover. Note
the position of the battery cable.
4. Squeeze the battery connector latch to disengage it from the back of the monitor and
remove the old battery.
5. Lay the new battery in the recess with the wires at the top, and plug in the connector.
6. Replace the cover and four screws (hand-tighten only) and reconnect the A/C power
cord.
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