
Troubleshooting and Maintenance
66
Table 8: 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 on the
rear panel is set to the proper voltage.
Turn the monitor off and let it charge for
approximately 10 minutes and then reattempt to turn
the unit 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. Re-enter the
date and time.
Other Messages
In addition to the messages listed in Table 8, the following
messages may be encountered:
SENSOR DISCONNECTED - The sensor has disconnected from
the cable, the cable has disconnected from the monitor, or the
sensor/cable wiring is defective. 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.
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