Sentec SDM - Page 54

4 Troubleshooting
HB-005615-j
48
Problem
Possible Cause(s)
Recommended corrective action(s)
PCO2 and/ or PO2
part of the sensor
is slow
Refer to P0304
P0101
PCO2 too low
OR
PO2 too high
Sensor loosely
attached to patient
(air between sensor
and skin; no
contact liquid)
Refer to identical ‘Possible Cause’ in P0100
for recommended corrective action(s)
Sensor applied to a
measurement site
that is inadequate/
not recommended
for PCO2/ PO2
monitoring
Refer to identical ‘Possible Cause’ in P0100
for recommended corrective action(s)
Arterio-venous
shunts, e.g. ductus
arteriosus.
Ensure that the sensor site and thee arterial
sampling site are on the same side of the
shunt
PCO2 part of the
sensor unstable
(causing drift)
Allow the sensor to stabilize for an additional
1 – 2 hours, i.e. store the sensor in the
Docking Station with the monitor being
switched on (refer to the Technical Manual
for the SDM for additional sensor stabilization
related information).
Note: After switching-on the monitor or after
membrane change, it is recommended to
store the sensor in the Docking Station with
the monitor being switched on for the
duration indicated by the yellow information
message ‘Recommended Sensor Stabilization
[min]: on’ the “Ready for use” screen and on
the “Calibration” screen (see Technical
Manual for the SDM ).
Wrong / expired
calibration gas was
used during last
calibration
Verify that SenTec Service Gas is used. If
expired replace with a new gas bottle!
Wrong / unstable
barometric pressure
during last
calibration
Refer to P0408
PCO2 and or PO2
sensitivity of the
sensor low/
deterioriated
Refer to P0305