3.1.10 Sensor Characteristics
Pressing the ‘ENTER’ Button on the SDM, while the sub-menu ‘System Information’ is
open activates a second system information screen, which displays the sensor
characteristics (for PCO2 and PO2).
3.1.11 Function Test: PCO2
/ PO2
Calibrate the TC Sensor and apply it to the ear of a healthy person: Verify, that the
PCO2
2
readings equilibrate (stabilize) within 2 to 10 minutes and are within 33 to 47
mmHg after stabilization.
In case of an OxiVenT™ Sensor additionally test PO2 function:
Power-cycle the SDM (i.e. switch it off and on again). Then calibrate the OxiVenT™
Sensor. After successful calibration the PO2 function test can be performed as follows:
Open the Docking Station Door in order to expose the sensor to ambient air. Then
enable the ‘Enforced Sensor On Patient Mode’ in order to start measuring PO2 (i.e. by
entering the Quick Access Menus and selecting ‘Start Monitoring’). Wait until PO2
readings equilibrate (stabilize), usually within 2 to 10 minutes. Check the atmospheric
pressure (Patm) and verify that PO2 readings are within the range shown in the tables
below. Note that PO2 ranges in the tables below are only valid for ambient
temperatures between 18°C and 28°C and relative humidity between 30% r.H. and
60% r.H.!
If these requirements are not met refer to
section 4.2.1 “Troubleshooting PCO2 / PO2
monitoring”
to further evaluate the problem.
In case of an OxiVenT™ Sensor it is recommended to check the remaining
‘Usage Time’ / ‘Life Time’. This can be done on the SDM`s `Sub-menu
System Information´ (refer to the
Technical Manual for the SDM
for further
information).
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