InstroTek
42
To use the Nomograph mode, place the source in the BS
position. Obtain the top material thickness and the density of
the material immediately under the thin overlay. The equation
used for calculation of the overlay density is:
Where DT is the overlay density, WD is the wet density measured
by the gauge and K is the effect of the top layer on the density
measurement. K is dependent on top layer material thickness
and is defined by:
X is the top material thickness and
𝑎
11
,
𝑎
12
,
𝑎
13
are constants
derived at the factory.
The gauge software automatically performs Nomograph
calculations. To use this function, select the menu item and
press the
17
button.
Select
YES
to enable the Nomograph function. Follow the
screen prompts to enable the Nomograph mode.
Enable Nomograph
Mode?
Press YES or NO
ESC to Exit
