Campbell Scientific TGA100 Trace Gas Analyzer Manual User Manual
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Table 5. Quick Key Summary
Key Function
I
Turn line locking on/off for ramp A
Alt-I Turn line locking on/off for ramp B. Available only when dual ramp mode is on.
D
Turn data collection on/off
G
Turn gradient mode on/off
L
Turns laser current on/off
S
Turn site mean mode on/off
O
Turn automatic control of detector gain and offset on/off
R
Turn dual ramp mode on/off
C
Toggle graphs 1 and 2 between scroll and retrace mode
M
Select Magnify mode for the reference and sample detector displays.
X
Select maXdisp mode for the reference and sample detector displays.
T
Select deTrended mode for the reference and sample detector displays.
F
Select Folded mode for the reference and sample detector displays.
A
Select Absorbance mode for the reference and sample detector displays.
Q
Same as the QUIT mode or <escape>: it stops real time operation, closes data files, and returns to the main
menu
V
Turn on or off the display of vertical grid lines in graph 1 and graph 2 that correspond to switching valve
control. This mode is enabled by default, but the lines are displayed only if the site means mode or the gradient
mode is active. See section 5.
P
Turn on/off printer output for the site means or gradient mode. When enabled, all information that is written to
a site means or gradient file will also be written to a printer. This mode is disabled by default.
Alt-
Z
Start an automated sequence to optimize the value of the Laser Zero Current. See section 4.4.2.
Alt-
M
Start an automated sequence to optimize the value of the Laser Modulation Current. See section 4.4.5.
Alt-
N
Start an automated sequence to optimize the value of the Ramp B Laser Modulation Current. Available only
when dual ramp mode is on. See section 4.4.5.
Alt-
1
Adjust the graph 1 limits to the mean ± (50 times the standard deviation), using the most recent 64 data values
(6.4 s).
Alt-
2
Similar to <Alt-1>, for graph 2.
Alt-
3
Similar to <Alt-1>, for graph 3.
Alt-
C
If the header file is open, this key will print a message in the header file. The user may type in the message or
press a function key to enter a previously defined message. See section 3.6.7 for a listing of the predefined
messages.
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