Cleaning and maintenance
134
Replacing the double limb adapter (expiratory valve)
Regularly check the double limb adapter for moisture and contaminants. Replace as necessary using the
procedure as described in Connecting circuits.
Replacing the Oxygen sensor
To remove and replace the oxygen sensor (O
2
cell):
Before replacing the O
2
sensor, turn off the device and remove from mains power and/or external
battery.
1. Unscrew the cover of the O
2
enclosure.
2. Remove the cover of the O
2
enclosure.
3. Holding on to the tab of the O
2
cell, gently pull the cell up and out of the enclosure. Gently pull the
wire to remove it from the connector in the device.
The device is now ready for the new O
2
cell to be installed.
4. Carefully insert the connector of the new O
2
cell into the socket. This connector can only be inserted
one way with the flat section to the wall of the enclosure. Press into place using a blunt tool (eg, a
flat-bladed screwdriver).
5. Holding on to the tab of the O
2
cell, gently place the O
2
cell into the enclosure ensuring the wires are
tucked into place.
6. Replace the cover and screw into place.
CAUTION
Following the replacement of the Oxygen sensor, you must run a Learn Circuit to calibrate the new
sensor and ensure accurate therapy and monitoring.
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