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
qSet up the instrument and turn the power on.
wSight the telescope at any reference target A at Normale state. Read the
vertical angle ( γ).
eTurn the telescope and rotate the alidade.Sight the same target A again at
Back state and read the vertical angle R.
rIf γ+R = 360°, no further adjustment is necessary.
Adjustments
If the deviation d (γ+ R - 360°) is wide, contact your local dealer.
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10 CHECKS AND ADJUSTMENTS
PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 70