6. Basic Operation
6.1 Instrument Parameters
The OPTIC-4 instrument parameters maintained during the standby state are set from the PC via the
Evolution Workstation software. For specific details see section 5.6 of this manual. The run time
parameters, including inlet temperature, column flow etc., are set via Evolution Workstation
methods. The method parameters are saved in the “Methods” directory in a file with an extension
“mth”. Method files can be loaded into the software for a later use. The details of the method
definition and development are described in chapter 7.
6.2 Instrument Startup and Shutdown
To start the instrument:
1. Turn on the carrier gas. For this, open the main valve of the carrier gas cylinder. Check if the
supply pressure is at least 300 kPa. Note that the OPTIC-4 pressure and the column flow
range vary accordingly to the supply pressure. To achieve maximum specified pressure and
flow settings a supply pressure of 700 kPa is necessary.
2. Ensure that the inlet port contains a glass liner appropriate for your application. For a list of
the OPTIC-4 liners refer to Appendix E of this manual.
3. Check it the GC capillary column is connected to the inlet. For details of the column
installation refer to section 4.6.2 of this user’s guide.
4. Turn on the instrument. Wait until only STANDBY LED remains burning.
5. Turn on the PC and monitor.
6. Start the Evolution Workstation Software. In case the access control is enable, the login
dialog is displayed. The Evolution Workstation software starts up and the status window is
displayed (Fig. 6.1).
7. When connection between PC and OPTIC-4 controller is established, the status window
should display the actual values and set points of the system standby parameters. To
perform analytical run, open a new method, define the parameters and run the method. For
details on defining and running methods see chapter 7 of this guide.
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