Vertical 0 Point Error - Pentax R-315(N) Instruction Manual

PENTAX R-300 (p65-88)
10 CHECKS AND ADJUSTMENTS

10-5 Vertical 0 point error

Be sure to follow check procedures mentioned below after making adjustments
on reticle and perpendicularity of line of sight to horizontal axis.
Checks
q Set up the instrument and turn the power on.
w Sight the telescope at any reference target A at Normale state. Read the
vertical angle ( ).
e Turn the telescope and rotate the alidade. Sight the same target A again at
Back state and read the vertical angle R.
r If +R = 360° , no further adjustment is necessary.
Adjustments
If the deviation d ( + R - 360° ) is wide, contact your local dealer.
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