R Series Service Manual
9650-0903-01 Rev. L 1-35
20.0Barometric Pressure Calibration Check
Tools Needed: None.
Test Setup: None
*The barometric pressure can be obtained from a calibrated barometer, or from the National Weather Service at www.nws.noaa.gov Note that the barometric
pressure is in inches of mercury, multiply it by 25.4 to convert to mmHg.
Do this... Observe this... Pass/Fail/NA
20.1 Connect the CAPNOSTAT 5 CO
2
Sensor to the
yellow connector at the back of the R Series
unit, and connect an airway adapter to the
sensor.
20.2 While pressing and holding the second softkey
from the left, turn the selector switch to Monitor
(ON for AED units).
The unit displays EtCO
2
Calibration screen.
20.3 Wait for the sensor to warm up. The message WARM UP is displayed. (Warming up may take up to 3 minutes.)
20.4 Obtain the local barometric pressure in mmHg.*
20.5 Press the Baro Pr. softkey to enter the
Barometric Pressure Calibration screen.
20.6 Use the Inc> and Dec< softkeys to set the
second value on the pressure display line equal
to your local barometric pressure.
20.7 Press the Return softkey to store the offset and
return to the main EtCO
2
Calibration screen.
ooo
Record your results on the Maintenance Test Checklist.
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