Terumo 801763, Operator'S Manual, Page: 266 / 359

Electronic Gas Blender
8-5
Calibrating the Oxygen Analyzer and Gas Flow Sensor
Calibration of the oxygen analyzer and flow sensor should be performed prior to each
case.
Note: In an emergency situation, the user may proceed to go on bypass without
performing calibration. The gas system will still operate using the most recent calibration
data.
CAUTION:
It is not recommended to calibrate while on bypass, due to wide changes
in gas flow rate and FiO
2
settings during the calibration process.
Before calibration can be performed, the O
2
analyzer requires a 15 minute warm-up period
after system power on and the source gases must be connected and turned on.
A dialog box stating “O2 Analyzer Needs Calibration” will appear automatically after the
warm-up period completes to notify the user of the need for calibration.
This dialog box will also appear the first time the user makes an adjustment to the FiO
2
or
gas flow setpoints in either of the following conditions:
• Before warmup is complete.
• After warmup is complete but before initiating calibration.
While the dialog box is on screen, access to the CCM controls will be disabled, but local
controls such as knobs will still function and displays will continue to update. Pressing the
OK button will clear the dialog box and restore access to the CCM controls. The dialogs
will not appear for repeats of the same event. For example, adjusting the FiO
2
before the
warmup is complete will create a dialog box. After clearing the dialog box, adjusting the
gas flow or FiO
2
again will not create another dialog box before the warmup is complete.
To initiate a calibration of the oxygen analyzer:
1. Important: Verify that the entire gas circuit is connected to the oxygenator prior to
initiating the calibration.
2. Touch the Setup tab in the Perfusion Screen and then touch the Gas subtab.
3. Touch the Calibrate button.