Observation Conditions - Dist - Sokkia X-1000 series Operator's Manual

Ang.reso. (Angle resolution)

Automatic tilt angle compensation mechanism
The vertical and horizontal angles are automatically compensated for small tilt errors using the 2-axis tilt
sensor.
• Read the automatically compensated angles when the display has stabilized.
• The horizontal angle error (vertical axis error) fluctuates according to the vertical axis, so when the
instrument is not completely leveled, changing the vertical angle by rotating the telescope will cause the
displayed horizontal angle value to change.
• Compensated horizontal angle = Measured horizontal angle + Tilt in angle/tan (Vertical angle)
• When the telescope is directed close to the zenith or nadir angle, tilt compensation is not applied to the
horizontal angle.

Collimation correction
The instrument has a collimation correction function that automatically corrects horizontal angle errors
caused by horizontal axis and leveling axis errors. Normally set this item to "Yes".

V mode (vertical angle display method)
Zenith

19.2 Observation Conditions - Dist

Select "Obs.condition" in <Configuration> and select "Dist".
: iX-1001/1002/501/502: 0.5", 1"*
iX-1003/1005/503/505: 1"*, 5"
Horiz 90°
Horiz
109
19. CHANGING THE SETTINGS