Troxler RoadReader Plus 3450 - Air Voids (Special Key)

Model 3450
3–27
% AIR VOIDS (SPECIAL KEY)
The gauge uses the specific gravity of the material to calculate
percent air voids and void ratio in soil mode only. The % Air Voids
feature allows the operator to enter the specific gravity of a material
and disable or enable the percent air voids display.
NOTE
To display percent air voids in asphalt or thin layer
mode, enter a voidless density target value (see the
Target section that begins on page 3–19).
To access the % Air Voids feature, press the 〈SPECIAL〉 key. At the
Special functions menu, access special operations by pressing 〈1〉.
At the Special Operation menu, access percent air voids by pressing
〈4〉. The gauge displays the % Air Voids menu:
The current specific gravity (default 2.70) is shown on the third line.
To either enable an existing specific gravity or enter a new one,
press
〈2〉 at the % Air Voids menu. The gauge prompts the operator
for a new specific gravity. If the displayed specific gravity is
acceptable, press the
〈ENTER〉 key. To change the specific gravity,
use the numeric keys to do so, then press the
〈ENTER〉 key. In
either case, the gauge enables the percent air voids display and
returns to the Ready screen.
To disable the percent air voids display, press 〈3〉 at the % Air Voids
menu. The gauge disables the percent air voids display and returns
to the Ready screen.
% Air Voids: On
1- Change Spec Grav
2- Enable SG=2.70
3- Disable
3. GETTING STARTED