Selecting Options > Program Setup and clicking on Scales underneath Grain Size Chart in the navigation list at the dialog's left side allows you to modify the scales shown on the sides of grain size distribution charts:
Minimum diameter
Maximum diameter
These fields select the extent of the particle diameter scale on the grain size distribution chart. Values may be specified in either inches or millimeters; use the units selection box just to the right of the minimum and maximum diameter fields to specify the units that you're using.
You don't need to use the same units for the maximum diameter and minimum diameter values; for example, most soil sample chart scales extend from 6" to 0.001mms., so the minimum diameter would be 0.001 with the units selection being set to mms.; the maximum diameter would be specified as 6 with the maximum diameter units selection set to inches.
Use the Left, Right and Bottom scale captions fields to change the captions printed next the scales printed on a grain size distribution chart. Note that the Right scale caption is not printed unless the Percent retained scale option is set to Left is percent finer, right is percent retained.
This selection offers the following options for the grain size distribution chart:
- Chart does not include a percent retained scale: The left-hand chart scale is of percent finer and no scale is shown on the chart right side
- Percent retained on chart left side: The left-hand chart scale is of percent retained, while no scale is shown on the right side of the chart
- Left is finer, right is percent retained: The chart includes a percent finer scale on the left side and a percent retained scale on the right side
- Note that this option has no effect on log(size) vs. probability and Phi (Wentworth) chart styles.