TruSat Technical Reference Manual
4–4
4.2 Planned Maintenance
Preventive maintenance and/or calibration are not required for the TruSat pulse
oximeter.
Battery
To extend the life of the battery:
• Fully charge the battery once a month.
NOTE: After all four battery segments are shaded, wait at least 20 minutes before
you disconnect the monitor from the external power source. This allows time for the
monitor to refresh the battery.
• Fully discharge the battery once every six months.
To discharge the battery, use battery power for monitoring until only one segment of the
battery indicator is shaded. Then, connect the monitor to external power and fully
recharge the battery.
NOTE: The battery can be recharged only when the internal temperature of the monitor
is between 0 °C and 40 °C (32 to 104 °F).
Cleaning
Clean the monitor before starting a procedure that involves disassembly of the monitor
and before sending the monitor for repair.
CAUTION: Do not autoclave, pressure sterilize, or gas sterilize the monitor. Do
not immerse the monitor in liquid or allow liquid to enter the interior.
CAUTION: Abrasive materials or harsh chemicals may damage the surface of
the monitor. Do not use petroleum-based solutions or solutions containing
acetone, freon, or harsh solvents.
1. Power OFF the monitor.
2. Disconnect all cables from the monitor: power supply, sensor, and any cable
connected to the RS-232 port.
3. Wipe the display lens with a cotton swab moistened with one of the following
cleaning agents:
Mild detergent solution 0.5% sodium hypochlorite (bleach)
70% isopropyl alcohol Quarternary germicides (Virex®)
1.6% phenol (Sporicidin®) 3.4% glutaraldehyde (Cidex® Plus)
4. Wipe the case with a soft cloth dampened with a cleaning agent. Do not allow
excess liquid to enter through a connector.
NOTE: To clean a reusable sensor, refer to the instructions that are provided with the
sensor. Disposable sensors are intended for single-patient use only and should be
discarded after use.
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