Datex-Ohmeda S/5 monitors
Document No. 800 1009-1
34
4
TROUBLESHOOTING
4.1
Troubleshooting charts
Trouble
Possible cause/treatment
No response to breathing
Sampling line or water trap blocked or loose, or improperly attached.
Water trap container full.
See the gas sampling system troubleshooting.
SENSOR INOP. -message
The temperature is too high, check fan and filter at the front panel
Communication error, check timeout and bad checksum values at the
service menu
xx ZEROING ERROR -message
Gas zeroing failed. Condensation or residual gases are affecting zero
measurement. Allow module to run drawing room air for half an hour and
calibrate again.
CHECK D-FEND -message
(Air leak-message)
Probably water trap or the sampling line is not attached properly. Gas zero
valve failure. Pump failure or gas outlet blockage.
REPLACE D-FEND -message
(Replace water trap -message)
1)
Indicates residue build-up on the water trap membrane. This decreases air
flow. Replace the D-fend.
REBREATHING-message
(FiCO
2
high -message)
1)
CO
2
concentration in inspiratory air is too high. Possibly CO
2
absorber in
ventilation is saturated. Change the ventilation absorber.
SAMPLE LINE BLOCKED-message
(Air leak -message)
1)
Sampling line or water trap is occluded. Water trap container is full. If
occlusion persists check internal tubing for blockages.
(SELECT AGENT -message)
1)
No anesthetic agent is selected though delivery is started. Vaporizer valve is
broken, or traces of cleaning or disinfecting agent in the water trap container
affecting the readouts. Let the container dry properly after disinfection
before use.
No response to any gas
Sampling line, water trap, or internal tubing blocked or loose, or improperly
attached.
Occlusion or zero valve malfunction. Pump failure. Supply voltage missing.
Serial communication error.
Trouble
Possible cause/treatment
Sudden increase in gas display
Water trap malfunction. Check all internal tubing and the interior of the water
trap for occlusions or leaks. Replace water trap. Check flow rates.
Abnormally high
response to all gases
(or abnormally low) or sudden
occlusion warning
Pressure transducer failure.
1)
@ earlier revisions