
Troubleshooting and Maintenance
Table 3: Error Codes and Messages
Error
Code
Error
Message
Action
4
LOW
BATTERY
The battery is discharged to a critically low level.
Check to ensure that the voltage selector switch is
set to the proper voltage.
Turn the monitor off and let it charge for about 10
minutes and then turn the unit back on. If the error
code is still present, turn the unit off and let it
continue to charge. If the monitor has been
charged for 30 minutes and the error code is still
present, notify service personnel.
80
DEFAULTS
LOST
The current power-on default settings have been
lost and returned to factory defaults. Qualified
service personnel can use the service manual to
restore the desired power-on default settings.
81
SETTINGS
LOST
The current settings (for example, alarm limits,
alarm and pulse beep volumes, alarm silence
duration) have been lost and returned to power-on
defaults. Turn the monitor off and back on again.
If it is necessary to have settings different from the
power-on default settings, turn the monitor off and
back on again, and reenter the desired settings.
82
CLOCK
SETTING
LOST
The date and time settings have been lost. Reenter
the date and time.
Other Messages
In addition to the messages listed in Table 3, the following
messages may be encountered:
SENSOR DISCONNECTED - The sensor has disconnected from
the cable or the cable has disconnected from the monitor. Press
the Alarm Silence Button to silence the alarm. Check the
connections. If this does not correct the problem, replace the
sensor and/or cable.
50
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