CHC
CTS-112R4 user manual
96
Adjustment
1)
If the object A does not move along the vertical line, first remove the eyepiece cover to expose the
four reticle adjusting screws.
2)
Loosen the four reticle adjusting screws uniformly with an adjusting pin. Rotate the reticle around
the sight line and align the vertical line of the reticle with point A
′.
3)
Tighten the reticle adjusting screws uniformly, repeat the inspection and adjustment to see if the
adjustment is correct.
4)
Replace the eyepiece cover.
15.4.
Perpendicularity of the line of sight to horizontal axis (2C)
Inspection
1)
Set object A about 100 m away from the instrument and make the target vertical angle in the range
of
±
3
°
,then level and center the instrument and turn on the power.
2)
Sight object A in left position and read the horizontal angle value (horizontal angle L= 10
°
13
’
10
”
).
3)
Loosen the vertical and horizontal clamp screws and rotate the telescope.
4)
Sight object A in right position and read the horizontal angle value (horizontal angle L= 190
°
13
’
40
”
).
5)
2C=L-(R
±
180
°
)= -30
”≥
±
20
”
, adjustment is necessary.
