Sentec SDM - Figure 14 Replacement, Main Fuses; Table 9 SDM Specific Troubleshooting

4 Troubleshooting
SenTec Digital Monitoring System
59
Problem
Possible Cause(s)
Recommended action(s)
PO2-module error
detected
General PO2-module error detected (e.g. off-
centered white spot missing).
The sensor can still be used for monitoring of
the other parameters but PO2. Replace
OxiVenT™ Sensor if you wish to continue
monitoring PO2.
Note: In this case the SDM should display
the message ‘Sensor problem 73’ (see
Technical Manual for the SDM ).
4.2.4 SDM specific troubleshooting
Table 9 SDM specific troubleshooting
Problem
Possible Cause(s)
Recommended action(s)
P0400
SDM not
operational,
SDM LEDs
not
illuminated
SDM switched off
Switch on SDM.
SDM not connected
to mains and
battery depleted
Connect the SDM to the mains. Allow battery
to charge.
Mains power supply
defective
Choose another mains power supply for
connecting the SDM.
SDM defective
Switch the SDM off and on again.
If problem persists contact qualified service
personnel.
Main fuses
defective
Replace main fuses according to section 5.4
Replacement, main fuses.
SDM defective
Contact SenTec authorized service personnel.
AC/DC Power
Supply not
connected
Connect AC/DC Power Supply according to
the Repair Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.
AC/DC Power
Supply defective
Replace AC/DC Power Supply according to
the Repair Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.