173
NOTE: The vertical angles shown in the Vertical Angle 0 Datum are only for reference.
24.7 The adjustment of horizontal axis error correction
As the horizontal axis error only affects the angle of sight line, it can be only confirmed through observing the
target of which height is obviously lower or higher than the instrument.
To avoid the influence of collimation axis error, user must have an associated adjustment before adjusting
collimation axis.
It is unnecessary to collimate the prism or the target plane to decide the horizontal axis error. Therefore user is
enabled to launch this adjustment at any time. Select a recognizable point which is rather far away from the
instrument, and much higher or lower than the instrument, with an aim to precisely collimate the point twice.
Operation Procedure
Key
Display
⑴
Under Instrument constant setting
functions, choose “4. Horizontal axis” and
press ENT key (or press numeric key 4),
enter horizontal axis error correction menu.
“4.
Horizontal
axis”
+
ENT
1. V0/Axis const.
2. V0/ Adjustment
3. Collimation
4. horizontal axis
5. Instr. Const.
6. Contrast ADJ.
⑵
The screen shows as right diagram,
at the front
position (face left) sight at the target
precisely
(The obliquity is among ±10°
~
±45°)
,
press SET 10 times.
Face left and
sight at target
+
SET
10 times
Horizontal axis
<Step-1> Front
±10°
﹤
level
﹤
45°
ZA 337°19′00″
HAR 186°42′41″
INPUT [00/10] SET
⑶
Rotate telescope. At the reverse position
(face right) sight at the same target precisely,
press SET 10 times.
Face
right
and sight at
target
+
SET
10 times
Horizontal axis
<Step-2> Reverse
±10°
﹤
Level
﹤
45°
ZA 202°41′09″
HAR 6°45′38″
INPUT [10/10] SET
⑷
Setting finished, screen shows “set!”, it
returns to instrument constant screen.
1. V0/Axis const.
2. V0/ Adjustment
3. Collimation
4. horizontal axis
5. Instr. Const.
6. Contrast ADJ.
Содержание KTS440 L Series
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