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Form No. 702718 Rev. A March, 2005
69
Owner’s Manual - Regal Intensive Care Unit
Figure 81. Oxygen Concentration Meter
and Calibration Knob
Black Calibration
Needle
Calibration
Knob
Figure 80. Fuel Cell and Oxygen Sensor
Assembly
Sensor
End
Cap
Fuel
Cell
Oxygen
Sensor
Body
This end of Fuel Cell goes into sensor body
If the oxygen sensor is mounted in the large
black plastic ring, you have a New Style
Intensive Care Unit (produced after
January 1, 2005). Proceed to New Style
Units on Page 70.
If this large black ring is not present, you
have an Original Style Intensive Care Unit
(produced before January 1, 2005). Follow
the instructions under Original Style
Units below.
Original Style Units:
1. In the electronics compartment (Figure 78)
twist the sensor slightly, and pull it out of
the compartment wall. Note: Do not try
to detach the spiral cord from the sensor.
2. Unscrew the end cap from the oxygen
sensor (Figure 80).
3. Remove and discard the old fuel cell.
Dispose of used fuel cells in accordance
with local, state, and Federal regulations.
4. On the new fuel cell, remove the shorting
button - refer to the instructions packed
with the fuel cell.
Note: Watch the oxygen concentration meter
(Figure 81) as you perform Step 5. The black
calibration needle moves to the right, then settles
down.
5. Place the fuel cell into the oxygen sensor
body. The end of the fuel cell with the metal
disk goes in first.
6. Gently, screw the sensor end cap back on.
Be careful, the threads are very fine and are
easily damaged.
7. Re-insert the oxygen sensor into the wall.
8. Proceed to Finish the Installation on
Page 70.
Figure 79. New Style Oxygen Sensor
Mount
Oxygen
Sensor
Black Plastic
Mounting Ring