Terumo Advanced Perfusion System 1 Operator's Manual page 272

Electronic Gas Blender
Controlling the FiO
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The FiO knob has a reference mark and tic marks on the front panel approximately
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indicating 0.1 increments in FiO
gas. When using 95/5 (95% oxygen/5% carbon dioxide) as the blending gas, the
tic marks approximately indicate 0.00625 increments from 0.95 to 1.00. Turn the
FiO knob clockwise to increase the percentage of oxygen in the blended gas and
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counterclockwise to decrease.
0.6
0.5
0.7
0.4
0.3
0.21
Air as blending gas
FiO Local Control Knob
2
Knob Adjust Only Mode
If the system detects certain internal faults, it will enter Knob Adjust Only Mode. Flow
and FiO adjustments using the CCM sliders will be disabled, and the gas system will
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have to be controlled by using the knobs. A dialog box will appear to notify the user if
this condition occurs. While the dialog box is on screen, access to the CCM controls
will be disabled. Pressing the OK button will clear the dialog box. See the Electronic
Gas Blender Messages section for instructions on how to respond to this error
condition.
from 0.21 to 1.00 when using air as the blending
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0.8
0.9
Setpoint
1.0
0.95
95/5 as blending gas
FiO
8-11
0.975
Setpoint
1.0
Local Control Knob
2