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16.3 Monitoring steps
16.3.1 Sensor zeroing
When you use a new airway joint, you must calibrate as the following procedures:
1.
Connect the sensor to the CO
2
module.
2.
Select the CO
2
parameter area, set the "WORK MODE" to "MEASUREMENT" in "CO
2
SETUP"
→
"OTHER
SET", then the information "CO
2
SENSOR WARM UP" will display on the screen.
3.
After warm up, install the sensor on a clean and dry air-way adapter. The adapter should be connected to the
atmosphere and isolated from all CO
2
sources, including ventilators, patient breathing and your own breathing.
4.
Select "ZERO" in "CO
2
SETUP" interface, then the information "To initiate a CO
2
sensor zero" will display on the
screen.
5.
Typical zeroing time is 6~10 s, the prompt information will disappear after zeroing.
WARNING
l
When calibrating the sensor during the measurement, please disconnect it from the patient's airway.
NOTE:
l
When using a new airway adapter, it must be zeroed as described in this section.
16.3.2 Measurement setting for sidestream CO
2
module
16.3.2.1 Measurement steps
1.
Connect the sensor to the CO
2
module.
2.
Set the "WORK MODE" to "MEASUREMENT" in "CO
2
SETUP"
→
"OTHER SET".
3.
After start-up, the information "CO
2
SENSOR WARM UP" will display on the screen, the module locates in
quasi-precision measurement state. Now the measurement can be performed, but the accuracy is low.
4.
After warn up, the module will enter full-precision measurement state.
Sidestream sampling cannula
Airway adapter
Nasal sampling cannula
Sampling chamber
Intubated sampling cannula
Non-intubated sampling cannula