Vertical angle
The Vertical angle display can be switched between Zenith (Z=0°)/Horiz (H=0°)/Horiz (H=±90°) To switch vertical angle/slope in %, press [ZA/%] when allocated to the Observation mode screen. The capitalized letter in the softkey indicates the currently selected mode.
Changing display: "20.1 Observation Conditions", allocating [ZA/%]: "20.6 Allocating Key