Mindray DPM 1 Manuel de l'opérateur télécharger pdf (Page 192)

15-8

When BTPS is turned ON, the system performs BTPS compensation automatically; when BTPS

is turned OFF, the BTPS compensation is disabled.

When measuring the CO

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 CO

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 CO

content in the patient’s

lung.

When measuring the CO

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

z 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.

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Mindray DPM 1 Manuel de l'opérateur Page 192