Nikon NE-101 Instruction Manual page 45

2) Adjustment
Before measurement, confirm the orientation of the vertical angle 0° in
the initial setting mode.
(1) While depressing the [
turn ON the power switch.
The entire display lights up and the
current vertical constant value is
displayed.
(2) Tilt the telescope across horizontal
position on face-1 to reset the
vertical angle.
Vertical angle "VR" appears on the
upper line of the LCD.
(3) While in the face-1 position, sight
an arbitrary Target P, located
within ±10° of the horizontal
plane.
VR becomes the vertical angle of
Target P.
(4) Depress the [HOLD] key to save
reading VR in memory.
The saved VR reading is displayed
on the upper line of the LCD,
while VL is displayed on the lower
line.
(5) Rotate the telescope to the face-2
position and sight the Target P
again.
The target P's vertical angle is
displayed as on the lower line.
44
] key,
AC:
VR:
VR:
VR:
VL:
VR:
VL:
1°00´20"
86°36´40"
125°45´20"
125°45´20"
125°45´20"
125°45´20"
234°16´00"