Troxler Enhanced RoadReader Plus 3451, Manual Of Operation And Instruction

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Model 3451 4–9
✓
Remove the drill rod by pulling straight up and twisting the
extraction tool.
Do not loosen the drill rod by tapping from side
to side with a hammer. Also, do not rock the extraction tool
from side to side. This will distort the hole or cause loose
material to fall into the hole.
✓
Carefully pick up the scraper plate.
BACKSCATTER MODE
Backscatter mode is used on concrete, asphalt, and soil layers
approximately four inches thick.
✓
Locate a smooth site on the test material.
✓
Fill the voids on open mixes with sand or cement.
NOTE
The gauge base must rest on the test material, not the fill
material.
✓
Ensure that the gauge does not rock. To ensure accurate
readings, the gauge base must be completely in contact with the
test material. If the gauge rocks, then find a more suitable test
site. If taking a measurement around a core, the gauge may be
moved a few inches away from the core to level it.
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