Operator's Manual

BeneVision N1 Patient Monitor Operator’s Manual 15 - 7
2. Attach the sensor connector to the CO
2
connector on the mainstream CO
2
module.
3. Zero the sensor after the warm-up is finished. For details, see
15.6.2Zeroing the Mainstream CO
2
sensor.
4. After the zero calibration is finished, connect the airway as shown below.
5. Make sure that no leakages are in the airway and then start a measurement.
NOTE
• Be sure to set the barometric pressure properly before using the mainstream CO
2
module. Improper
settings will result in erroneous CO
2
reading.
• Always position the sensor with the adapter in an upright position to avoid collection of fluids in the
windows of the adapter. Large concentrations of fluids at this point will obstruct gas analysis.
• To avoid dead space, place the sensor as close to the patient as possible.
15.6.2 Zeroing the Mainstream CO
2
sensor
For mainstream CO
2
modules, the sensor should be zeroed in the following conditions:
■ Before each measurement.
■ A new adapter is used.
■ Reconnect the sensor to the module.
■ The message CO2 Zero Required displays. In this case, check the airway adapter for any blockage, e.g.
mucus, etc. If a blockage is detected, clear or replace the adapter.
To zero the sensor, follow this procedure:
1. Connect the sensor to the module.
2. In the
CO2 menu, select Setup tab.
(1) Sensor (2) Connect to module (3) Airway adapter
(4) Connect to patient (5) Connect to ventilator
(2)
(1)
(3)
(4)
(5)