Novametrix Medical Systems OXYPLETH 520A, Service Manual

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Battery Life and Maintenance
5-Jun-01 Model 520A Service Manual
37
PRELIMINARY
Battery Life and Maintenance
10.4
The monitor was shipped from the factory with a fully charged battery. Since the
monitor draws some battery power even while turned off, it is recommended that
the monitor be operated on line power for the first 24 hours to allow ample time for
the battery to fully recharge.
The monitor may be operated on line power while the battery is recharging.
Approximately 16 hours are required to fully recharge a discharged battery.
During prolonged periods of storage or shipment, the battery may discharge enough
to prevent the unit from turning on while operated from battery power. If this
occurs, plug in the line cord, set the switch on the rear panel to the “|” On position,
ensure that the green
indicator on the front panel is illuminated, and allow the
monitor to charge for 24 hours before switching it on.
Mains Voltage Configuration
10.5
The rear panel power entry module indicates the mains voltage setting for the
monitor. Check that the voltage is correct before attaching the AC line cord and
powering the monitor. The Model 2001 can be set to operate from 100-120 VAC
50/60Hz or 200-240VAC 50/60Hz.
Instructions for fuse replacement and changing the mains voltage setting follow.
Fuse Replacement
10.5.1
1. Check that the monitor is OFF.
2. Set the rear panel power entry module switch to OFF (“O”). Remove the AC
line cord from the power entry module.
3. Using a flat blade screwdriver, pry the fuse access door open to expose the
fuse housing. Note the orientation of the fuse housing (this determines the
mains operating voltage).
CAUTION:
Replace fuses with same type and rating. Verify proper fuse value for mains voltage
setting (see table below)
.
Mains Voltage Fuses (Slo Blo)
100-120 VAC 0.5 A 250V
200-240 VAC 250mA 250V