Table of Contents
Advertisement
11. PREPARATION FOR MEASUREMEN'I
[Note: Levelling using the tilt angle display]
For levelling, the tilt angle X and Y values can be displayed for use
as a 2-axis (X,Y) tilt sensor. The tilt angle values are used to
automatically correct the vertical and horizontal angles for error
due to the non-verticality of the vertical axis. The measurement
range is+3' and the minimum display unit is I".The "Tiltcorrection
(Dual axis)" parameter must be set to "Yes".
B
1) In Theodolite mode, turn the up-
per part ofthe instrument until the
C
telescope is parallel to a line be-
tween levelling foot screws A and
B and tighten the horizontal fine
A
motion screw @.
Tilt angle display
Tilt angle
0" 01' 20"
-0" 00'
40"
X Levellrng foot screws AB
Y Levell~ng foot screw C
( ~ n above illustratlon)
2) Press
@ J
3) The X and Y tilt angles are dis-
played.
X
:
Tilt angle in sighting axis di-
rection
Y : Tilt angle in horizontal axis
direction
4)
Set both tilt angles to O0 b y turn-
ing the levelling screws A and B
for the X direction and C for the Y
direction.
"Out of range" indicates that the
OUL
of
rarigp
tilt angle exceeds the 23' mea-
surement range.
To Theodol~te mode
5) To exit from the tilt angle display,
To Basic mode
press
@ J
t o return to Theodo-
lite mode or press
to go to
Basic mode.
To record the horizontal, vertical and tilt angles on the IC card,
please refer t o P.109.
$ &
Advertisement
Table of Contents
