Model 3440
5
–
17
Backlit Keypad
This option allows the keypad to be seen more easily in dimly lit
environments. To activate the keypad backlight, press the
¢
Light
²
key. Using the backlight reduces battery life, so it is
important to turn it when not in use.
GPS Option
The Model 3440 gauge can also be equipped with an optional
global positioning system (GPS) receiver. The GPS receiver
enables the gauge to store precise GPS coordinates, along with
the standard date and time stamp, for each measurement.
To toggle the
GPS
function on or off, press
¢
2
²
on the
Options
menu shown above.
NOTE
When the
GPS
option is installed and enabled, the
symbol g appears in the upper right of the
Ready
screen when the gauge is receiving GPS satellite
signals.
NOTE
If a Model 3440 equipped with the GPS option is
moved a long distance between uses, the GPS system
must be allowed to initialize. In some instances,
initialization may take as long as 30 to 45 minutes
from the time the gauge is powered on with the GPS
enabled. Note also that the gauge must be positioned
such that the GPS receiver can receive signals from
the GPS satellites (see Appendix H for more
information). If the GPS does not initialize within 45
minutes, contact your Troxler representative.
Summary of Contents for RoadReader 3430
Page 14: ...1 6 Figure 1 Model 3440 Gauge and Accessories...
Page 19: ...Model 3440 2 3 Figure 2 Direct Transmission Geometry Figure 3 Backscatter Geometry...
Page 20: ...2 4 Figure 4 Backscatter Surface Density Effects Top Layer Effect Curves...
Page 22: ...2 6 Figure 5 Effect of Moisture on Depth of Measurement...
Page 164: ...F 2 STANDARD COUNT LOG Gauge Serial Number _____________ Date MS DS Date MS DS...
