Rugby 620, Applications
26
5.2
Checking Grades
Checking Grades
step-by-step
Application shown using the Rod Eye 140, Classic Receiver.
Step Description
1.
Set up the Rugby on a tripod.
2.
Set up the tripod on a stable surface outside the working area.
3.
Attach the receiver to a rod.
4.
Turn on the Rugby and the receiver.
5.
Set the base of the rod on a known point for the finished grade.
6.
Adjust the height of the receiver on the rod until the on-grade (centre-line)
position is indicated on the receiver by:
• the centre bar
• the green flashing LED
• a solid audio tone
7.
Set the rod with the attached receiver on top of the excavation or concrete
pour to check for correct elevation.
8.
Variances can be read from the digital receiver.
• 7a: Position is too high.
• 7b: Position is too low.
• 7c: Position is on grade.
6
b
a
4
005792_001
3
1 + 2
5
7a
7b
7c