Campbell Scientific TGA100 Trace Gas Analyzer Manual - Manual (Page 31)

3.4.4 Dynamic Parameters
The next menu column, labeled “PARAMETERS”, provides access to the dynamic parameters, i.e. those that may be
changed in real time. The <up/down arrow> keys are used to scroll through the list of dynamic parameters (listed in
). If the Run/Edit mode is selected, the value of the selected dynamic parameter may be changed using the
> keys. Use the <Home End> keys for coarse adjustments, <Page Up Page Down>
keys for normal adjustments, the <+ -> keys for fine adjustments, and the keys for very fine adjustments. Number
pad and keyboard give the same results.
Table 3
Table 3. Dynamic Parameters
Some dynamic parameters may be controlled automatically. In this case, the value is displayed and updated in real time,
and an “A” will appear to the right of the value. Changing the value of a dynamic parameter that is being controlled will
disable the control function.
The dynamic parameters are a subset of the parameters stored in the parameter file and can also be edited through the
parameter change menu (see section 3.5). Table 3 lists the dynamic parameters by the abbreviated name shown in the
real time screen and gives the full parameter name shown in the parameter change menus (see section 3.5). Changes
made to these parameters in the Real Time Screen are saved in the parameter file.
Abbreviated Name Units Full Parameter Name
1 Laser Temp K Laser operating temperature (K)
2 DC Current mA Laser DC current (mA)
3 Mod Current mA Laser Modulation current (mA)
4 High Current mA Laser High current offset (mA)
5 Zero Current mA Laser Zero current (mA)
6 SMP Gain -- Sample detector gain
7 SMP Offset -- Sample detector offset
8 SMP Det Temp ºC Sample detector operating temp (deg C)
9 REF Gain -- Sample detector gain
10 REF Offset -- Reference detector offset
11 REF Det Temp ºC Reference detector operating temp (deg C)
12 Std Dev Time sec Mean, StdDev time frame (sec)
13 Graph3 Range -- Graph 3 range
14 SMP Det Lin -- Sample detector linearity coeff
15* RampB Offset mA Ramp B offset current (mA)
16* RampB Mod mA Ramp B Modulation Current (mA)
17* RampB High mA Ramp B High current (mA)
18* SmpDetLin B -- Ramp B Smp detector linearity coeff
* Dynamic parameters 15 through 18 are available only in dual ramp mode.
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