Sokkia 130R Series Operator's Manual page 158

27. CHECKS AND ADJUSTMENTS
Example:
(Procedure 7) The horizontal
angle 0°03' 30" = 04' 30" to the
right from the reticle line (=0° set
position) of the position that
changes to green only from both
colors (red and green) of the colors
of the guide lights that are reflected
in the prism.
(Procedure 8) The horizontal angle
359°57' 00" = 03' 00" to the left
from the reticle line (=0° set
position) of the position that
changes to green only from both
colors (red and green) of the colors
of the guide lights that are reflected
in the prism.
The angle difference for
procedures 7 and 8 is 1' 30,"
with this the dividing line for
the green and the red shifts to
the right side (the green side).
The illustration depicts how the left
and right colors of the guide light
are reflected in a prism and seen
when viewed through the
telescope.
When the angle difference is more
than 1', proceed to the
adjustments for procedure 10.
When the angle difference is less
than 1', adjustments are
unnecessary.
150
00 00'00"
359 57'00"
Red only
range
3'00"
Range for
both colors
00 04'30"
Green only
range
4'30"