Pentax ETH-310 - Manual (Page 34)

34
5. Measurement
5.1 Horizontal angle measurement (right)
Level the instrument, and after power on set the vertical angle 0 point.
Sight the first object using the horizontal clamp and tangent screw as
well as the telescope clamp and tangent screw.
Press [0SET] twice to set the horizontal angle to 0°,00’,00”
Sight the second object using the horizontal clamp and tangent screw
as well as the telescope clamp and tangent screw.
Read the displayed value (
α).
First Object: Zero Setting (0 °00’ 00”)
Second Object (34 °47’ 20”)
Horizontal Angle (
α) = 34 °47’ 20”
1
2
4
5
3
First object
Second object