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12
Introduction
TPS400-5.0.1en
Technical terms and abbreviations
ZA = Line of sight / collimation axis
Telescope axis = line from the reticle to the centre of
the objective.
SA = Standing axis
Vertical rotation axis of the telescope.
KA = Tilting axis
Horizontal rotation axis of the telescope (Trunion
axis).
V = Vertical angle / zenith angle
VK = Vertical circle
With coded circular division for reading the V-angle.
Hz = Horizontal direction
HK = Horizontal circle
With coded circular division for reading the Hz-
angle.