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3.2 Switching Horizontal Angle Right / Left
1
Collimate the first target "A".
2
Press the [R/L] key.
The mode Horizontal angle right (HR) switches to Horizontal angle
left (HL)
• Every time pressing the [R/L] key, HR/HL mode switches.
3
Measure as HR mode.
Reference : How to Collimate
1
Point the telescope toward the light. Turn the diopter ring and adjust
the diopter so that the cross hairs are clearly observed.
(Turn the diopter ring toward you first and then backward to focus.)
2
Aim the target at the peak of the triangle mark of the sighting
collimator. Allow a certain space between the sighting collimator and
yourself for collimating.
3
Focus the target with
the focusing knob.
*If parallax is created
between the cross hairs
and the target when
viewing vertically or
horizontally while looking
into the telescope,
focusing is incorrect or
diopter adjustment is
poor.
This adversely affects precision in measurement or survey.
Eliminate the parallax by carefully focusing and using diopter
adjustment.
V 90°10’20”
HR 120°30’40”
V 90°10’20”
H L 239°29’20”
Focusing knob
Telescope eyepiece
(Diopter ring)
Eye
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