Sokkia CX Series Operator's Manual page 290

36. STANDARD EQUIPMENT AND OPTIONAL ACCESSORIES
2-point target (2RT500-K)
This target is used for two-distance
offset measurement.
• For information about reflective
sheet targets and target devices,
contact your local dealer.
Instrument height adaptor
(AP41)
This device is used to adjust the
height of the target.
• Make sure that the instrument height
"236" (mm) is displayed in the
instrument height adjustment
window.
1. Install the tribrach to the
instrument height adaptor.
2. Level the instrument and check
the position of the bubble of the
plate level.
3. Turn the upper part through 180°
and check the bubble position.
If the bubble is still centered, no
adjustment is necessary.
If the bubble is off-center, adjust as
follows.
4. Correct half of the bubble
displacement using levelling foot
screw C.
280
Height
adjustment
window