Calibration Procedures - CareFusion Bird Sentry User Manual

Bird Sentry™ Blender

Calibration Procedures

The Bird Sentry blender should be calibrated before being placed into clinical use. Thereafter,
CareFusion recommends calibration of the unit on a daily basis. Frequent calibration will have no
adverse effect on the performance of the Bird Sentry blender.
Calibration should also be performed upon replacement of a sensor or when point-of-use elevation
changes by more than 500 feet or 150 meters. The sensor is best calibrated while mounted in the Bird
Sentry sensor port. As in normal operation, the oxygen sensor responds best when installed in a vertical
position with the sensor facing down.
It is best to calibrate the Bird Sentry blender using the sensor port, and with a technical grade oxygen
standard (99.996% or better) at a pressure and flow similar to your application. Calibration of the unit
at lower concentrations or with room air is less desirable.
● Ensure that gas supply lines are connected and the sensor is plugged into the O
● Turn on both gas supplies, turn on the Bird Sentry blender, and rotate the FiO
100 stop. Turn off the air supply.
● If the LOCKED icon is displayed, press the LOCK key. The icon should disappear.
● Press the CAL key, the CAL icon will be displayed momentarily which will be followed by a flashing
%icon.
● Pressing the UP and DOWN arrow keys will adjust the displayed oxygen concentration as required
to 100.0%.
● After the value is set, press the CAL or LOCK keys to return to normal operation.
Note:
If 10 seconds elapse between key actuations, the system will store the latest calibration
value and will revert to normal operation. If this occurs inadvertently, repeat the calibration
procedure.
Note:
If CAL followed by Er flashes on the display after entering the calibration value, the system
has determined that the entered value will not allow operation within the specified output
range of the sensor. This situation may occur if:
● The operator has inadvertently entered the wrong concentration for the calibration gas.
● The concentration of the calibration gas is not correct.
● The sensor is in need of replacement.
● The operator attempted to adjust the analyzer before allowing sufficient time for the calibration
gas to purge out the previous sample.
● The flow and pressure of the calibration gas was not properly regulated. Check these items and
repeat calibration. If calibration error continues to occur, contact technical support.
L1383 Rev. D
Chapter 2: Operating Procedures
sensor port.
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control knob to the
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