Sorc (Sensitive Oxygen Ratio Controller) - Dräger Medical Fabius Tiro Technical & Service Manual

Replacement Procedure
20 SORC (Sensitive
Oxygen Ratio Con-
troller)
Dräger Medical AG & Co. KGaA
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Access to the SORC requires removal of the
Figure 26 shows the tubing and mounting arrangement for the SORC. For
clarity, other sub-assemblies are not shown in the illustration.
NOTE
If the Core Unit is wall mounted, refer to the
Procedure prior to performing the following step.
1. Disconnect all pipeline hoses and set the System Power switch to 'ON'.
2. Close all cylinder valves except the O2 valve.
3. Set the oxygen flow to 5 l/min.
4. Open the other gas flow control valves to deplete the pressure from the
system.
5. Close the O2 cylinder valve and close the flow control valves. Press the
O2 Flush valve to deplete oxygen pressure from the system.
6. Set the System Power switch to 'OFF' and disconnect AC power from the
machine.
7. Detach the cylinder supply from the yoke.
8. Loosen the screws securing the bezel assembly (refer to the
Bezel Assembly instructions) and bring the assembly forward for access
to the SORC.
9. Disconnect the tubing from the SORC where shown in
these tubes so they can be reattached to the replacement SORC in the
same manner.
10. Remove the four SORC mounting nuts and remove the SORC from the
flow meter bezel assembly.
11. Install the replacement SORC with the four mounting nuts that were pre-
viously removed.
12. Re-connect the O2 and N2O tubing to the SORC in the same manner as
the original.
13. Reinstall the flow meter bezel assembly in the machine (refer to the
Meter Bezel Assembly
14. Reconnect the pipeline and cylinder supplies and restore power to the
machine.
15. Perform the PMS procedure.
6020.002
Flow Meter Bezel
Wall Mount Service Access
instructions).
Revision B Released
Fabius Tiro
Assembly.
Flow Meter
Figure 26. Mark
Flow
195