SRS Labs QMS 100 Series, User Manual

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2-6 Features and Operation
SRS QMS Gas Analyzer
The recommended shut-down procedure is:
1. Stop the scan if there is one in progress using the Stop Now command in the
Scan menu.
2. Turn off the filament and CEM.
3. Save the RGA file you have been working on, using the Save or Save As
command in the File menu.
4. Terminate the RGA program using the Exit command in the File menu.
5. Turn off the RGA Head.
Features and Operation
The RGA Window
The RGA window represents one SRS RGA Head operating in a specific display and scan mode.
The RGA window does not need to be connected to a head at all times. It can be used to print
graphs or to review some old scan logs. You may size, tile, minimize, or cascade several RGA
windows together even while scanning.
When an RGA window is sized, all the graph objects in it are also sized down or up. For
optimum viewing of a graph, maximize the RGA program window, and maximize the RGA file
you wish to view.
Multiple Head Operation
The RGA program can monitor several SRS RGA Heads simultaneously. Each RGA window
represents a separate RGA Head that is controlled independently from any other window/head
combination.
To connect an RGA Head to an RGA window, use the RS232 Setup command to assign a port
(that you know is attached to an RGA Head) to that window. The operation of the RGA program
is unchanged whether you have one or several heads connected and scanning. The only
difference you might see is a slowdown in display update, and that is dependent on the computer
hardware you use.
Display Modes
There are seven distinct display modes in RGA along with split modes that consist of
combinations of these modes.
Following are the seven distinct modes: