9Working with other optional accessories
English
Connecting a sensor
1Connect the air tubing to the T-piece adapter.
2Connect the FiO2 monitoring sensor to the T-piece adapter.
3Connect the adapter to the air outlet of the device.
4Connect one end of the cable to the FiO2 monitoring sensor.
5Connect the other end of the cable to the rear of the device.
6Start calibration (see “Setup menu: Options” on page 16). This should be repeated
periodically at the recommendation of your clinician.
Attaching an antibacterial filter
The use of an antibacterial filter may be recommended by your clinician. One antibacterial
filter—product code 24966—can be purchased separately from ResMed.
Regularly check the filter for entry of moisture or other contaminants. The filter must be
replaced according to the manufacturer‘s specifications.
Note: ResMed recommends using a filter with a low impedance (less than 2 cm H2O at
60 L/min, eg, PALL BB 50 filter).
WARNING
Do not use the antibacterial filter (product code 24966) with the H4i.
1Fit the antibacterial filter to the air outlet of the device.
2Attach the air tubing to the other side of the filter.
3Attach the mask system to the free end of the air tubing.
4Perform the Learn Circuit function (see “Setup menu: Options” on page 16). From the
Setup menu, select Options. This enables the device to compensate for the impedance
introduced by the filters.
1
2