GE S5 Owners Manual

S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC
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Document no. M1187338-003
11. Remove the CO2 unit module bus flex cable from the REC board.
NOTE: Be careful with the in sulation plate covering the 
cable connector on the REC board.
12. Lift the CO2 unit carefully up and remove the unit  from the module cover.
13. Remove the screw (T8) holding the module bus flex  cable to recorder unit metal plate and module 
cover.
14. Lift the REC board carefully up and disconnect the  two module bus flex cables...

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Document no. M1187338-003
16. Use a flat blade screwdriver to unlock the module bus connector insulator cover. Put the screwdriver 
in the hole and move the blade backwards (away 
from the module bus flex cable) until the insulator 
cover unlocks.
17. By assisting with a screwdriver pull the module bus  connector through the hole in the module cover.
18. Flip the module cover over and remove the two (T6)  screws holding the lock un it to the frame. While 
pulling the tab push the...

S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC
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Document no. M1187338-003
3.4 Adjustments and calibrations
3.4.1 Calibrating
The airway module should be calibrated once every six months or whenever there are 
indications of errors in the gas readings. 
Calibrate the gas measurement with the Datex-Ohmeda calibration gas. Do not use any other 
calibration gases. 
−Use the regulator 755534-HEL.
− Use gas 755580 only and set the FiO2 le vel in the CO2 setup menu to 21-40% Airway Gas 
- CO2 setup. .O
2...

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Document no. M1187338-003
Figure 9 Connecting sampling line to the gas valve and feeding gas
3. For maximum accuracy, let the monitor  warm up for 30 minutes. The menu item Gas 
calibration remains gray as long as the message  ‘Calibrating gas sensor’ is displayed. 
4. Press the 
Airway Gas key and select  Gas calibration .
5. Wait until the ‘Zero ok’ and then the ‘Feed gas’ messages appear after each gas on the  screen.
6. Open the regulator and feed calibration gas until the...

S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC
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Document no. M1187338-003
•Turn the ComWheel until the displayed value matches the desired value in the gas bottle 
and push it again.
If the message ‘Zero error’ is displayed, press the 
Normal Screen key and repeat the 
calibration procedure.
The time of the last calibration is shown at the bottom of the menu page. 
3.4.2 Gas sampling system adjustment
For flow rate measurements, a flow meter with a low flow resistance  and the capability to...

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Document no. M1187338-003
A change of 0.050 in the Gain value changes the flow approximately 7.5 ml/min.
After you have changed the gain, wait until the Sample Flow value on the screen returns near 
to the original, then check the flow meter reading again.
3.4.5 Gas calibration
Gas calibration is performed in the  Airway Gas menu. 
Calibration gas regulator flow check
Interval: every 12 months
Regulator flow specification:
REF 755583-HEL & 755534-HEL: 260 – 410 ml /min at 1-10 bar...

S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC
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Document no. M1187338-003
4Troubleshooting
4.1 Troubleshooting chart for recorder unit
4.2 Troubleshooting chart for CO
2 measurement
Problem CauseWhat to do
Module not responding to front panel 
key, but operates through Recorder 
menu. Membrane switch cable loose or 
broken.
Check the cable. Replace the 
front panel if necessary.
Recorder will not start.
No error messages shown. Recorder: Module not properly 
inserted.Re-insert the module properly....

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4.2.1 CO2 measurement
‘REPLACE D-FEND’ message Amb – Work pressure difference too big.Indicates residue build-up on the water trap membrane. This decreases 
air flow. Replace the D-fend.
‘SAMPLE LINE BLOCKED’ message Amb – Work pressure difference too big. Sampling line or water trap is occluded. Water trap container is full. If 
occlusion persists, check internal tubing for blockages.
No response to any gas Check Sample Gas Out. Amb - Work pressure low,...

S/5 Extension Module for FM, N-FC, N-FCREC, N-FREC
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Document no. M1187338-003
4.3 Gas sampling system troubleshooting
The faults which can occur in the sampling system are: leaks or blockages in the tubing, failure 
of the sampling pump or the magnetic valves, or diminishing of the flow rates because of dirt 
accumulating in the internal tubing.
The following checks should help in localizing the fault. Whenever suspecting the sampling 
system and always after having done any work on the sampling...

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4.4 MiniC unit troubleshooting
WARNINGThe miniC measuring unit  can only be repaired and calibrated at the 
factory. Attempts to repair/calibrate  the unit elsewhere will adversely 
affect operation of the unit. In case  of failure, the complete miniC unit 
should be sent to GE Heal thcare for factory exchange.
4.5 Error messages
Message Explanation
Occlusion or Sample Line Blocked The sample tube inside or outside the monitor is blocked or water  trap is...