Humboldt H-4114SD.3F Electrical Density Gauge - Manual (Page 14)

In actual testing, The Maximum Dry Density and the Optimum Moisture
data will be used by the EDG to generate % compaction results.
Next press the Classify button at the bottom left of the screen.
A scrolling list of the Unified Soil Classification descriptions will appear.
Find the soil classification that best fits the material you are testing,
click on it to highlight it and press the Done button at the bottom right
to choose this description. You can also choose None or Other for this
description, as well. If you choose Other, you will have the option to
type in your own description.
Once you've made your choice by selecting your description and
pressing the Done button , you will be returned to the Soil Model
Details Screen. If the data displayed is correct, press the Apply button
at the bottom right of the screen. If not, you can alter your
information by pressing on the appropriate fields or the Classify button
to make changes, or you can simply press the Cancel button
to return to the Soil Model screen.
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