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Patient Monitor User Manual
circuit.
4. Power up the monitor.
5. A green LED indicates that the ISA analyzer is ready for use.
6. Perform a pre-use check as described in section Perform a pre-use Check.
19.3.2.4 Zeroing
The infrared module needs to establish a zero reference level for the CO
agent gas measurement. This zero calibration is here referred to as "zeroing".
ISA analyzer performs zeroing automatically by switching the gas sampling from the respiratory
circuit to ambient air. The automatic zeroing is performed every 24 hours, and takes less than 10
seconds for ISA analyzer.
If the ISA analyzer is fitted with an oxygen sensor, the automatic zeroing will also include room
air calibration of the oxygen sensor.
Since a successful zeroing requires the presence of ambient air (21% O
ensure that the ISA analyzer is placed in a well ventilated place. Avoid breathing near the
ISA analyzer before or during the zeroing procedure.
19.3.2.5 Cleaning
The ISA sidestream gas analyzers and Nomoline Adapter can be cleaned using a cloth moistened
(not wet) with max 70% ethanol or isopropyl alcohol.
To prevent cleaning liquids and dust from entering the ISA gas analyzer through its LEGI
connector, keep the Nomoline Family sampling line connected while cleaning the analyzer.
Never immerse the ISA sidestream gas analyzer in liquid.
19.3.2.6 Maintenance
Once every year, or whenever gas readings are questionable, perform a leakage check according
to section Leakage Check and verify gas readings with a reference instrument or with calibration
gas.
The Nomoline sampling lines are non-sterile devices. To avoid damage, do not autoclave
any parts of the sampling line.
WARNING
CAUTION
WARNING
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Monitoring AG
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O and anesthetic
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and 0% CO
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