Technical Alarm Messages at the TM80 Troubleshooting
15 - 10 TM80 Telemetry Monitor Operator’s Manual
SpO
2
SpO
2
 
Sensor 
Off
Low* B The SpO
2
 sensor has 
become detached from 
the patient or the mod-
ule. 
There is a fault with the 
SpO
2
 sensor. 
An unspecified SpO
2
 sen-
sor has been used.
Check the sensor 
application site and 
the sensor type, and 
make sure the sen-
sor is not damaged.
Reconnect the sen-
sor or use a new sen-
sor.
SpO
2
 
Sensor 
Fault
Low C
SpO
2
 No 
Sensor
Low B
SpO
2
 
Module 
Error
High A
SpO
2
 
Excess 
Light
Low A There is too much light 
on the SpO
2
 sensor.
Move the sensor to a 
place with lower 
level of ambient 
light or cover the 
sensor to minimize 
the ambient light.
SpO
2
 No 
Pulse
Low A SpO
2
 sensor failed to 
obtain pulse signal.
Move the sensor to a 
site with better per-
fusion.
SpO
2
 
Unplugg
ed
Low C SpO
2
 module connector 
is disconnected from the 
TM80.
Reconnect the SpO
2
 
module to the TM80.
SpO
2
 
Sensor 
Incom-
patible
Low C Incompatible or an 
unspecified SpO
2
 sensor 
is used.
Use specified SpO
2
 
sensors.
SpO
2
 
Signal 
Weak
Low C The SpO
2
 signal is too 
low.
Check the patient’s 
condition and 
change the sensor 
application site. If 
the error persists, 
replace the sensor.
SpO
2 
Interfer-
ence
Low C The SpO
2
 signal has inter-
ference.
Check for any 
possible sources of 
signal noise and 
check the patient for 
excessive motion.
Measurement
Alarm 
message
Default 
Alarm 
priority
Alarm 
Indication
Possible cause Solution
* The asterisk (*) means the alarm priority is configurable.
** XX is the ECG lead name.