
Bird Sentry™ Blender
L1383 Rev. D
13
Chapter 4:
Troubleshooting
Problem Potential causes and solutions
Oxygen concentration discrepancy between
oxygen concentration selection knob and
actual reading on display.
1. Monitor out of calibration. Calibrate. Refer
to Ch.2, Calibration Procedure.
2. Sensor exhausted. Replace. Refer to Ch. 6,
Service and Maintenance.
3. Outlet flows are below specified range.
Correct flow. Must be above 2 LPM.
4. Gas supply contaminated. Contact
CareFusion Corporation for repair of the
Bird Sentry blender.
5. Bird Sentry blender operation out of
calibration. Contact CareFusion distributor
or CareFusion Corporation for repair.
Pressure Differential Alarm Sounding. 1. Inlet pressure differences of 20 PSI or
more. Correct pressure difference.
2. Pressure alarm not calibrated properly.
Contact CareFusion distributor or
CareFusion Corporation for repair.
3. Bird Sentry blender operation out of
calibration. Contact CareFusion distributor
or CareFusion Corporation for repair.
Bird Sentry blender in bypass mode, no audible
pressure differential alarm.
Reed alarm cap damaged or defective.
Contact CareFusion distributor or CareFusion
Corporation for repair.
Selected oxygen concentration accurate only
when gas pressures are equal.
Bird Sentry blender balance module not
functioning properly. Contact CareFusion
distributor or CareFusion Corporation for
repair.
Blank display. 1. Battery not installed. Install. Refer to
Appendix C, Setup and Installation,
Battery Installation.
2. Battery completely dead. Replace. Refer to
Appendix C, Setup and Installation,
Battery Installation.
3. Monitor defective. Contact CareFusion
distributor or CareFusion Corporation for
repair.
Partial or distorted display. Monitor damaged. Contact CareFusion
distributor or CareFusion Corporation for
repair.
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