Chapter 4: Troubleshooting
Bird Sentry™ Blender
14
L1383 Rev. D
Problem
Potential causes and solutions
Sensor will not calibrate.
1. Sensor cell exhausted. Replace.
Refer to Ch. 6, Service and Maintenance.
2. Sensor cable or holder defective. Return to
CareFusion Corporation.
3. Monitor defective. Contact CareFusion
distributor or CareFusion Corporation for
repair.
Sensor will calibrate, but takes too long to
return to 21% ±2% oxygen in air (2 to 5
minutes) when performing the daily check
procedure.
Disposable oxygen sensor damaged or
defective. Replace. Refer to Ch. 6, Service and
Maintenance, Disposable Galvanic O
2
Sensor
Cable.
Sensor will calibrate, but does not return to
21% ±2% oxygen in air (2 to 5 minutes) when
performing daily check procedure.
Disposable oxygen sensor damaged or
defective. Replace.
Sensor will calibrate, but reading at any
constant level drifts more than±3% over a 24
hour period.
1. Barometric pressure change since last
calibration. Recalibrate.
2. Room or gas temperature went below
59°F (15°C) or above 104°F (40°C).
Correct temperature and recalibrate.
Sensor exhibits greater than 1% oxygen
interference in the presence of gases or vapors
listed in the sensor specifications.
1. Sensor defective. Replace.
2. The Bird Sentry blender requires internal
adjustment. Contact CareFusion
distributor or CareFusion Corporation for
repair.
