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12 Appendix C: Calibration and Maintenance
The Atlas Monitor must be serviced by authorized Welch Allyn personnel or agents at 6 month intervals.
Maintenance requirements are specified for 6 month, 12 month and 24 month service intervals. The
monthly CO
2
Reset operation can be performed by the user.
Service Interval Maintenance Requirements
Every month CO
2
Reset
Every 6 months CO
2
Calibration
Button test
LED test
Printer test
Every 12 months All 6 month maintenance requirements
BP Calibration
ECG Calibration
Battery test
Every 24 months All 6 month maintenance requirements
All 12 month maintenance requirements
ECG signal gain & noise test
Temperature measurement check with calibrated probe
SpO
2
measurement check and functional tests