Instrument Operation 4-11
Figure 4-7
Graph Options Menu
Y-Axis Scale
Select from Log or Linear concentration display.
Max Y-Axis Value
Use this option to pick the upper limit for
concentration display on the graph. Concentration is
presented in particles per cubic centimeters (p/cc).
Autoscale automatically scales the graph based on
the highest concentration. Fixed upper limits are
provided by factors of 10.
1E-1 0.1
1E+0 1
1E+1 10
1E+2 100
1E+3 1,000
1E+4 10,000
1E+5 100,000
1E+6 1,000,000
1E+7 10,000,000
Min Y-Axis Value
Use this option to pick the lower limit for
concentration display on your graph. Autoscale
automatically scales the graph based on the lowest
concentration. Fixed lower limits are provided by
factors of 10. The options include 1E-2, 1E-1, 1E+0,
1E+1, 1E+2, 1E+3, 1E+4, 1E+5, and 1E+6. The lower
limit is at least one order of magnitude lower than
the upper limit.
Selecting fixed values for upper and lower
concentration limits provides the best resolution in
the concentration range of interest. The
concentration line will not be displayed if it is outside
the boundaries defined by the upper and lower limits.
Display
Brightness
Adjust the brightness of the front panel display as a
percentage of maximum brightness.
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