S12 Vet Monitor User’s Manual
15-3
Before attaching the airway adapter to the CO2 sensor, verify that the airway
adapter windows are clean and dry. Clean or replace the adapter if necessary.
Follow these steps:
1) Align the arrow on the bottom of the airway adapter with the arrow on
the bottom of the sensor.
2) Press the sensor and airway adapter together until they click.
3) Wait for the airway adapter and sensor to warm up.
The monitor will display the “Sensor Warm Up…” message for approximately
1 minute while the sensor and adapter warm to operating temperature. The message
disappears when the sensor is ready for use.
Since the Masimo IRMA CO2 mainstream module has a faster heating rate,
there is no “Sensor Warm Up…” prompt.
CAUTION:
The atmospheric pressure must be set to the correct value before using the
mainstream CO2 module. Incorrect atmospheric pressure settings can result in
erroneous CO2 readings (Masimo IRMA CO2 mainstream modules do not
function because they already have automatic atmospheric pressure
compensation).
Install the sensor above the adapter to avoid liquid build-up on the adapter
window. Gas concentration at high concentrations at this location can hinder
gas analysis.
To avoid dead space, place the sensor and adapter as close as possible to the
patient.
4. Perform a zero, the details refer to 15.8 Zeroing.
5. After the zero is finished, take the Masimo IRMA CO2 module as an example
and connect the air circuit as shown below.
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