SRS Labs QMS 100 Series, User Manual

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Getting Started 2-5
SRS QMS Gas Analyzer
Starting the RGA Software
To start the RGA software simply double-click on the RGA icon in the "SRS RGA" program
group created by the RGA installation program. You may also type the full path name of the
RGA program in the Run command from the Program manager.
The program also accepts a file on the command line. If a filename is specified, the program will
open that file at startup. You can open the program by double clicking on any file with the .rga
extension. You can open any .rga file from windows explorer by dragging it to the running
program.
You can only run one copy of RGA at the same time. If you attempt to start another copy of
RGA while it is already running, the existing copy is activated and brought to the front of the
screen.
Connecting to a Head
Connecting to an RGA Head requires an available RS232 port on your PC and a full DB9-DB9
RS232 cable. To connect to an RGA Head do the following:
1. Connect the RS232 cable to the DB9 connector on the Head labeled
"RS232/DCE/28.8k.Baud".
2. Connect the other end of the cable to the RS232 port on the PC side.
3. Turn On the RGA Head.
4. Start MS Windows and the RGA Program.
5. Select Connector List Setup from the Head menu.
6. Select the port to which the RGA head is connected.
7. Press the Connect button.
The connection is made when the connector icon turns green and the status of the instrument
shows string "connected". After you close the Connector List Dialog, the toolbar GO button
turns green, and the Scan and Head menu commands get enabled.
Shutting Down the RGA System
If the user simply exits the program, the RGA will be left in its current state. Disconnecting from
the RGA will also leave the RGA setup unchanged. This means that the filament and CEM can
remain on when the program is quit. This can be useful in some situations.
When the RGA is not in use, the filament and CEM should be turned off. This will extend their
life. To accomplish this remember to explicitly turn off the filament and CEM before leaving the
software. The entire ECU can be left on when the RGA is not in use. At idle the electronics draw
minimal power.