Nellcor NPB-75 Service Manual page 58

Table 10-2: Calibration Process (Continued)
Objective
To reset and
return to
measuring mode
To exit service
mode and save
event messages
Calibration Errors
Table 10-3: "Calibration Process - Troubleshooting" describes calibration
problems that can occur, the message displayed and the appropriate
corrective action.
Table 10-3: Calibration Process - Troubleshooting
Message Possible Causes
• Gas concentration
• Problems with gas
• Flow system
• CO
• Calibration process
Section 10: Performance Verification
Action
long press
Turn off the
monitor.
does not match the
concentration value
selected in the first
calibration screen.
sampling
problems (purging,
blockage or no
FilterLine)
Sensor problem
2
exceeds 3 minutes
Result
Action
Check setup,
correct
probable
causes, and
recalibrate
unit as
above.
• Contact
your local
distributor.
• Restart. If
problem
persists,
contact
your local
distributor.
10-7