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Gas Span Check
The EMMA Capnograph 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.
To following items are required to perform a gas span check of EMMA:
Attach the flow regulator to the calibration gas cylinder. Ensure that the valve is shut off completely.
1.
Attach a new EMMA Airway Adapter to
the EMMA Capnograph.
2. Turn on the EMMA Capnograph 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 EMMA Airway Adapter, and connect a
second EMMA 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 EMMA
Airway Adapters
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