Topcon RL-HV Series - Grade Setting Setup Example

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7. APPLIED OPERATIONON
■ Example of how to set up
When setting grade, it is necessary to accurately set the RL-HV to the direction of grade setting.
Below is an example of how to set grades to the accurate grade setting direction. (To work at X+3% (1S) / Y-
3% (2S) grade surface to the base line)
1. Set up the RL-HV on Point A of the base line using the plumb bob
on the tripod.
2. Using the sight at the upper section of the RL-HV, adjust the
direction on top of the tripod and roughly align the Y+ (1S) / X+(2S)
direction to Point B on the standard axis.
In case of 1S
In case of 2S
LS-80X
LS-80X
base line
base line
Grade to work
Grade to work