Air Trap Valves - GE AKTAprocess Operating Instructions Manual

2 Safety instructions
2.3 Emergency procedures
Valve shutdown order
If an EMERGENCY STOP button is used, the valves will shut in the following order:
1 CIP/AxiChrom Column packing valves
2 InletA valves / InletB valves (optional) / Sample inlet valves (optional)

3 Air trap valves

4 Filter valves (optional)
5 Sample connection valves (optional)
6 Column 1 valves
7 Column 2 valves (optional)
8 Outlet valves
Power failure
The system power is lost if the SYSTEM POWER SWITCH on the cabinet is turned off, the
mains cable disconnected or the power supply is lost.
All pumps stop if the electrical power to the system is lost. All valves will immediately
revert to Closed positions.
If only the system is affected by the power failure and not the computer, UNICORN will
display text saying that communication has been broken and that no data has been
recovered. When power returns to normal, the system will be in End state (i.e., it will not
resume the run).
The UNICORN interface control unit, CU-960, has capabilities to store real time data
during short disconnection from the computer. Data stored on the CU-960 can be up-
loaded to the computer once communication to the computer is re-established. Upload
of data from the CU-960 to the computer will be indicated on the monitor. The system
can be controlled again once the upload of data from the CU-960 is completed. Data
upload can take several minutes to complete.
Note:
36
Forcing UNICORN or the Microsoft™ Windows™ operating system to close
during upload of data from the CU-960 will cause the unsaved data to be lost.
ÄKTAprocess Operating Instructions 29-0252-49 AA