Field Data Conversion
3401-B: Gauge users are supplied with conversion tables for
wet density and moisture content; users must compute dry
density, percent moisture, and percent compaction.
3411-B: Contains a microprocessor providing direct reading in
both SI and US Customary units for wet density, dry density,
moisture content, and percent moisture. The algorithm corrects
for hydrogen photon scattering coefficients and provides means
for offsetting non-water hydrogen.
If the optimum density has been preset by the operator, the
microprocessor can compute % of Marshall or % of Proctor.
A method has also been provided to allow operators to negate
the effects of sidewall moisture, if necessary.
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