Pentax ETH-305 Switch User Manual


 
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5.3 Vertical angle measurement
Level the instrument,turn the power on and set
the vertical angle 0 point.
Sight the object A using the horizontal clamp and tangent screws as well
as the telescope clamp and tangent screws.
Read the displayed value ( ).
The vertical angle mode can be changed to slope percent display
(V%) by pressing [V%] key.
Also,horizontal 0°(VH) and compass (Vc) can be set using special
key operation.
(Factory setting is Zenith 0°)
(Refer to 3.1 Setting of vertical angle)
Vertical angle (θ) = 86 °24’40”
Press the [V/%] key to view the Vv and V%.
Vertical angle 0 point
Object
Horizontal angle