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Masimo
Gas Span Check
The Radius PCG does not require any routine calibration. A gas span check is recommended at regular intervals to
make sure the measurement is within accuracy levels. The suggested interval for gas span check is once every year.
The following items are required to perform a gas span check of Radius PCG:
Attach the flow regulator to the calibration gas cylinder. Ensure that the valve is shut off completely.
1.
Attach a new Airway Adapter to the
Radius PCG.
2.
Turn on the Radius PCG and ensure
that the EtCO
2
reading is zero.
Otherwise, conduct a Zeroing
procedure according to chapter 7.4
above before proceeding.
3.
Insert the 15M connector into one end
of the Airway Adapter, and connect a
second Airway Adapter to the other
end (see picture).
4.
Turn on the regulator flow.
5.
After 30 seconds, record the EtCO
2
reading.
6.
Turn off the flow.
7.
Determine and record an estimated
ambient atmospheric pressure in
mmHg.
8.
Use the following table to determine if
the unit is reading within specified
limits.
1
A gas flow
regulator with a
plastic tube and a
15M connector
2
Calibration gas
(5% CO2, 21% O2,
Balance N2)
3
Two (2) Airway
Adapters
