Example: The Zone60 DG is set up on the crown of the road and one axis is aligned to the
centreline. In order to make the cross axis grade fall to the right or left hand side, simply change
the plus/minus sign on the Combo grade screen.
3.5
Axis Identification
When entering grade, it is important to know the correct direction in which the grade is being
entered.
Refer to the following illustration to identify the correct directions of the axes.
X+
Y+
Y—
X—
011219_001
3.6
Conversion of Slope Into Percent of Grade
Slope: The change in elevation per unit of measure (foot, metre, etc.)
Percent of Grade: The change in elevation per 100 units of measure (feet, metre, etc.)
Calculating percent of grade from slope:
[Slope] x 100 = [Percent of Grade]
Example:
Slope
= 0.0059
Conversion
= 0.0059 x 100
Percent of Grade
= 0.590%
3.7
Alignment of the Axes
After the desired grade is correctly set in the display, align the X- and Y-axis to the jobsite.
☞
Ensure that the bubble of the circular level is positioned near the centre of the circle
for maximum self-levelling capability.
☞
Ensure that the Zone60 DG is properly positioned over a control point.
The direction of the X-Axis is seen from the front of the Zone60 DG, sighting over the top of the
Zone60 DG.
Axis identification
Conversion of slope
Aligning X- and Y-axis
22
Operation
