Operation Method Zipp02 | 27
Measurement of
horizontal angle
1. Reset of horizontal angle
2. Selecting the direction of measurement of horizontal angle
Press 0SET button.
The horizontal angle returns to zero.
Press R/L button to change the direction of
measurement of horizontal angle.
• When HR is displayed, the angle increases
with clockwise turning of the collimation
unit.
• When HL is displayed, the angle increases
with counter-clockwise turning of the colli-
mation unit.
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