5-2 TM80 Telemetry Monitor Service Manual 
 
5.1 Recommended Maintenance and Test Frequency 
Check/Maintenance Item    Frequency   
When first installed or reinstalled. 
Power-on test 
When first installed or reinstalled. 
  Following any repairs or replacement of 
device components 
ECG test 
  If the user suspects that the measurement 
is incorrect. 
  Following any repairs or replacement of 
relevant module. 
  At least twice every two years. 
Note: NIBP test should be performed at least 
once a 
Calibration 
SpO
2
 test 
NIBP test 
Leakage test 
Nurse call test  If the user suspects that the nurse call functionality 
does not work properly. 
Electrical safety tests    After the TM80 or central charger falls off. 
  At least once every two years or as 
needed. 
Network print test    When first installed. 
  Whenever the printer is serviced or 
Battery 
check 
Functionality 
test 
When first installed. 
Whenever a battery is replaced. 
Performance test  For rechargeable lithium-ion battery: once every two 
months or when the battery runtime is reduced 
 
 
5.2 Inspection before Daily Use 
Perform visual inspection before daily use.