NOTE
•
The unit of N2O COMPEN, O2 COMPEN and Des COMPEN is “%”. The
concentration of N2O, O2 and Desflurane can be obtained from the anesthesia
machine.
•
Set the N2O COMPEN, O2 COMPEN and Des COMPEN according to the
practical situation. Incorrect setting might incur errors from the actual value and
cause misdiagnosis.
•
BTPS Body Temperature and Pressure, Saturated
Options: ON and OFF.
When BTPS is turned ON, the system performs BTPS compensation automatically; when
BTPS is turned OFF, the BTPS compensation is disabled.
When measuring the CO2 content inside the patient’s lung, turn ON BTPS. Normally, the
lung temperature of the patient is 37.
and the water vapor is sufficient or regarded as
saturated. But the temperature and water vapor content of the sampling line are different from
the patient’s exhalation. Thus, when the patient’s exhalation passes the sampling line, the
accuracy of the CO2 concentration measured by the sensor will be adversely affected. To
ensure an accurate measurement, you should turn ON the BTPS. In this mode, the system
adjusts the calculation coefficient automatically, so that the measured value is just the actual
CO2 content in the patient’s lung.
When measuring the CO2 content of the environment or a certain vessel, turn OFF BTPS. In
the standard ambient pressure and dry gas, the accuracy of the sensor measurement is not
affected.
NOTE
•
When measuring a moist gas of saturated water vapor at the body temperature
and the ambient pressure, turn ON BTPS; when measuring a dry gas at the
ambient temperature and pressure, turn OFF BTPS.
•
ZERO CAL This option allows you to zero manually so as to eliminate
the adverse affect of baseline drift in the process of
measurement.
•
CONFIG >> Select CONFIG >> to access the CO2 CONFIG menu. You
can select either FACTORY CONF or USER CONF. After
finishing the selection and exiting the menu, a dialog pops
up asking for confirmation of your selection.
17-8
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