173
B
：
Optical adjustment (Only for professional service technician)
1. Use the tangent screw to adjust the horizontal angle reading,
2. Take off the cover of the reticle between the eyepiece and focusing screw. Adjust the two adjusting screws by
loosening one and tightening the other. Move the reticle to aim at object A exactly.
3. Repeat inspection and adjustment until
｜２Ｃ｜＜２０
".
4. Replace the cover of reticle.
24.5 Vertical Index Difference Compensation
·
Inspection
1. Mount and level the instrument and make the telescope parallel with the line connecting the center of the
instrument to any one of the screws. Lock the horizontal clamp screw.
2. After turning on the power, zero the vertical index. Lock the vertical clamp screw and the instrument should
display the vertical angle value.
3. Rotate the vertical clamp screw slowly in either direction about 10mm in circumference, and the error message
“b” will appear. The vertical axis has been increased to more than 3
ˊ
at this time and exceed the designated
compensation range.
Rotate the above screw to its original position, and the instrument display screen will show the vertical angle again,
meaning that the vertical index difference compensation function is working.
Adjustment
If the compensation function is not working, send the instrument back to the factory for repair.
24.6 Adjustment of Vertical Index Difference ( i angle) and Vertical Angle 0 Datum
Inspect this item after finishing the inspection and adjustment of Item 24.3 and 24.5.
Inspection
1. Power on after leveling the instrument. Aim at object A facing left and read the
Vertical angle value L.
2. Rotate the telescope. Aim at object B facing right and read the Vertical angle value R.
3.If the vertical angle is
０
°in zenith,
ｉ＝
(
Ｌ＋Ｒ－３６０
°)
／２
If the vertical angle is
０
°in horizon,
ｉ＝
Ｌ＋Ｒ－１８０
°)
／２
Ｌ＋Ｒ－５４０
°)/
２
4.If
｜ｉ｜
≥
１０
″ shall set the Vertical Angle 0 Datum again.
·
Adjustment
Operation procedure
Key
Display
