Art: 714364-00M Rev. Date: 02-Aug-12 2-5
Infrared
Communication
Window
The Infrared Communication Window provides the analyzer with two-way
communication to the Central Data Station via a Downloader, allows analyzer-
to-analyzer software updates, and allows analyzer-to-printer communication for
printing.
Thermal Control The analyzer contains a thermal control subsystem of thermistors and heating
contact wires that controls the temperature of the sensors and fluids that come
into contact with the sensors to 37°C. This subsystem is activated automatically
when a cartridge containing tests which require thermal control at 37°C is inserted
into the analyzer.
Barometric Pressure
Sensor
The analyzer contains a solid-state barometric pressure sensor, which determines
the ambient atmospheric pressure used for the PO
2
sensor calibration.
Cartridge Test Cycle
An operator starts a cartridge test cycle either by inserting a cartridge into the
analyzer or by selecting the i-STAT Cartridge option from the Test or Quality Tests
Menu.
The analyzer:
makes electrical contact with the cartridge
identifies the cartridge type
releases calibration fluid to the sensors (when applicable)
mixes sample and reagent (when applicable)
measures barometric pressure
heats the sensors to 37°C (when required by the test )
measures electrical signals generated by the sensors and calibration
fluid (when applicable)
displaces the calibrant solution with sample (when applicable)
measures electrical signals generated by the sensors and sample
accepts the operator and patient IDs scanned or entered by the
operator
accepts chart page information
calculates and displays results
stores results
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