User's Manual

Radical-7 Chapter 7: Troubleshooting
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Unexpectedly High SpCO Reading
Possible elevated methemoglobin level.
Next steps: Submit blood sample for laboratory CO-Oximetry test. See Appendix: Best
Practices for Comparisons to Reference Measurements on page 139.
Difficulty Obtaining a Reading
• Low battery/ not plugged into AC power supply.
Next steps: Insert Handheld into Docking Station, verify Docking Station power
cord plugged in and Docking Station power indicator light is illuminated.
• Interference from line frequency induced noise.
Next steps: Verify/set 50/60hz menu setting. See Localization on page 78.
• Inappropriate sensor or sensor size.
Next steps: Verify proper sensor and sensor size for the patient.
• Excessive ambient or strobing light.
Next steps: Shield the sensor from excessive or strobing light. Minimize or
eliminate motion at the monitoring site. See Appendix: Best Practices for
Comparisons to Reference Measurements on page 139.
SpCO Reading Displays as Dashes
• SpO2 value below 90% Next steps: Assess/address patient condition.
• SpMet value greater than 2% Next steps: Laboratory analysis of a blood sample
should be performed.
• SpCO parameter has not yet stabilized during initial startup
Next steps: Verify proper sensor and sensor size for the patient. Allow time for
parameter reading to stabilize. See Appendix: Best Practices for Comparisons to
Reference Measurements on page 139.
Troubleshooting the Radical-7
For more information, see Chapter 6: Alarms and Messages on page 99.
Instrument Does Not Turn On
One or both of the fuses are not operating properly.
Next steps: Replace the fuses. For details, see Replacing the Fuses on page 133.
Instrument Turns On But Screen is Blank
The viewing contrast is not correct.
Next steps: Adjust the brightness setting. See Brightness on page 80. If the condition
persists, requires service. See. Contacting Masimo on page 136.