Stanford Research Systems RGA100, Operating Manual And Programming Reference

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Running the SRS RGA System 1-13
SRS Residual Gas Analyzer
Running the SRS RGA System
This section describes how to launch the RGA Windows program and start acquiring data
from the RGA Head. An analog scan from 1 to 50 amu is executed as an example.
Important : The following steps assume that all the installation instructions described in
the previous section were completed. The RGA Head should be mounted on the vacuum
system, powered up and connected to the RS232 port of the IBM compatible PC
computer or serial adapter. RGA Windows should be installed in the computer and ready
to run.
Warning:
Do not operate the RGA if the pressure in the chamber is greater than 10
-4
Torr.
1. Turn on the computer and start MS Windows.
2. Start the RGA Software:
To start the RGA software simply double-click on the RGA icon in the "RGA"
program group created by the RGA installation program, or select the program
directly from the Window’’s task bar:
3. Connect to the RGA Head:
x
Click on the toolbar’’s RS232 Setup button or select Connector List Setup
from the Head menu.
x
Locate the port to which the RGA head is connected on the connector column
and click to select it.
x
Click on the Connect button.
x
The connection is made when ““Connected”” is displayed in the status column and
the toolbar’’s GO button turns green.
4. Close the connector list when the connection is completed.
5. Turn on the filament:
x
Click on the toolbar’’s Filament button .
x
The ionizer is biased with default voltage values and the filament is turned on to
the default emission current. It takes a few seconds for the filament wire to warm
up during which a small informative dialog box is active. The Filament button
remains highlighted as long as the filament is emitting electrons.
x
The filament emission can be toggled on/off at any time clicking on the Filament
button. The ionizer settings can be changed selecting Ionizer Settings from the