Product Manual
Message Possible cause Suggested action Alarm priority
SpO2 rebooting. 044200 The SpO2 module received a bad
packet
There is an internal software
malfunction in the main PCBA.
Update the software. If the problem
persists, replace the module.
Very low
SpO2 rebooting. 044300 The SpO2 module received an
invalid command
There is an internal software
malfunction in the main PCBA.
Update the software. If the problem
persists, replace the module.
Very low
SpO2 rebooting. 044400 The SpO2 module received a
command that would result in
more output than the baud rate
can support
There is an internal software
malfunction in the main PCBA.
Update the software. If the problem
persists, replace the module.
Very low
SpO2 rebooting. 044500 The SpO2 module received a
command that requires an
application that is not present
There is an internal software
malfunction in the main PCBA.
Update the software. If the problem
persists, replace the module.
Very low
SpO2 rebooting. 044600 The SpO2 module received a
command while still locked
There is an internal software
malfunction in the main PCBA.
Update the software. If the problem
persists, replace the module.
Very low
1
Demo mode is reported when you plug a Masimo demo tool into the patient cable connector. This tools
simulates a patient being connected, and is only used in a development environment. Because this tool
simulates a patient without a patient actually being connected, it should NEVER be present in a clinical setting.
Nellcor messages
Message
Possible cause Suggested action Alarm priority
Sensor not connected.
Clear to retry. 043800
The SpO2 sensor is not connected Connect SpO2 sensor. If the problem
is still present, replace the SpO2
cable. If the problem is still present,
verify the module functionality by
replacing the sensor with an
applicable SpO2 tester. If the
message persists, replace the
module.
Very low
Searching for pulse
signal 043900
None
None
1
High
SpO2 interference
detected. Clear to retry.
043b00
SpO2 module interference
detected.
Reapply the sensor to the patient. If
the problem is still present, replace
the SpO2 Ssensor. If the problem is
still present, replace the cable. If the
problem is still present, verify
module functionality by replacing the
sensor with an applicable SpO2
tester. If the message persists,
replace the module.
Very low
SpO2 rebooting. 043c00 SpO2 module hardware error A module hardware error is
detected. Replace module.
Very low
102 Troubleshooting Connex
®
Spot Monitor










