Surveying 7. Basic Operation; Reading The Staff - Sokkia SDL30 Operator's Manual

7. Basic Operation
7.1

Reading the Staff

Simply focus on the RAB* code for an automatic reading of
the staff. The following explains how to read the RAB code
of the staff.
* : RAB code (Random Bi-directional code) is a coded staff
Important:
• Set up the staff in an area free of obstacles.
Avoid placing the staff next to mirror-like surfaces. The effect of
strong light could make measurement impossible.
• Support the staff so that it is perpendicular, checking the circular
bubble scope on the staff. If the staff is tilting, height and distance
measurements will be incorrect.
• If the surface is catching the light, turn it just enough to stop the
reflection.
• Make sure shadows are not cast on the staff as this could make
measurement impossible.
• When holding the staff during measurement, make sure your
hand does not cover the RAB code.
• If dark locations make measurement difficult, shine a flashlight on
the staff. Stand at a distance so that the beam shines evenly
over the length of the staff.
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used with SOKKIA digital levels.
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