Model 3411-B Advanced Control Unit 4–7
4. SPECIAL FUNCTIONS
SPECIAL CALIBRATION
For information on performing a special calibration, see Chapter 3.
SPECIFIC GRAVITY
The specific gravity of a solid is defined as the density of the
material divided by the density of water. The Specific Gravity
function allows the operator to input the specific gravity of a
material into the gauge. This value (SG) is used in the calculation of
% Air Voids and Void Ratio (see Chapter 2).
To access the Special functions, press 〈SPECIAL〉.
To access the Specific Gravity feature, press the down arrow five
times and press 〈START/ENTER〉.
SG = 2.70
(↑ ↓ or ENTER)
To change the value of the flashing digit, use the up and down
arrows. To accept the flashing value and select the next digit, press
〈START/ENTER〉.
If a value is not entered, the default value is 2.70, the “typical”
specific gravity for soil.
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