Model 3440-L 4–3
4. TAKING A MEASUREMENT
After the gauge completes its count time, the display will be:
%PR= xxx %
DD= xxx
WD= xxx
M= xx %M= xx
The reading may be stored for later use by pressing the 〈STORE〉 key.
Refer to page 4–4.
ASPHALT MODE
Enable the Asphalt mode prior to taking a measurement. Refer to Chapter 2
for more details on gauge setup.
Ensure that the asphalt surface has been properly prepared. Refer to
Chapter 3 for more detail in site preparation. Place the gauge at the proper
location and move the source rod to the backscatter position (refer to
Figure 2–1 on page 2–14).
NOTE
In some applications, the source rod may be extended to place
the gauge in a Direct Transmission mode for use on soft
asphalt.
Verify that all parameters have been set to the correct values.
Start a measurement by pressing 〈START/ENTER〉. The display will be:
Depth: xx
MA: xxxx
Time: xxx sec.
After the gauge completes its count time, the display will be:
%MA= xxxx %
WD= xx
M= xxxx %M= xx
%VOIDS= xxxx
The above display will remain until a function key is pressed, a new
measurement is taken, the 〈NO/CE〉 key is pressed, or the gauge shuts off
due to inactivity.
The reading may be stored for later use by pressing the 〈STORE〉 key.
Refer to page 4–4.
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