Troxler RoadReader Plus 3450, Manual Of Operation And Instruction

Page: 65 / 201

4–12
ASPHALT MODE
To measure the density of asphalt (and hardened concrete of 4
inches or more) follow the steps below:
✓
Select the Asphalt mode (see page 3–23).
✓
If desired, enter or enable the Marshall value, voidless density
value, or Marshall value/voidless density pair (see page 3–19).
✓
Prepare the test site as described on page 4–8.
✓
Place the gauge on the test area.
✓
Lower the source rod to the backscatter position. Release the
trigger. Gently tap on the handle over the source rod to lock the
source rod into position. You should hear a
click when the
source rod locks into position.
✓
Press the
〈
START
〉
key.
►
In the Manual depth mode (see page 3–14), the gauge will
prompt for the source rod depth. Enter the source rod depth
using the number keys. For example, with the source rod in the
backscatter position, press
〈
0
〉
. Then, press
〈
ENTER
〉
.
►
In the Automatic depth mode, the gauge software reads the
depth strip on the source rod to determine the source rod depth.
✓
The gauge will display the time remaining while taking a
measurement.
NOTE
Prior to countdown, the gauge may display
Please Wait
for five seconds. This occurs if the baseboard electronics
require warmup prior to starting the measurement.