Sokkia CX-52 Operator's Manual page 260

33. CHECKS AND ADJUSTMENTS
3. Use the telescope fine motion
screw to align the target to point B
on a vertical line.
If the target moves parallel to the
vertical line, adjustment is
unnecessary. If its movement
deviates from the vertical line,
have our service representative
adjust it.
PROCEDURE Check 2: Vertical and horizontal reticle line

• Perform check in weak sunlight and no scintillation.
• "Tilt crn" should be se to "Yes (H,V)" and "coll.crn" to "Yes" in <Obs. condition>
while performing checks.
1. Carefully level the instrument.
2. Install a target at a point about
100m in the horizontal direction
from the instrument.
3. While the OBS mode screen is
displayed and the telescope is in
face 1, sight the center of the
target and read out the horizontal
angle A1 and the vertical angle
B1.
Example:Horizontal angle A1=18° 34' 00"
Vertical angle B1=90° 30' 20"
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positions