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10.5 Vertical 0 point error
Make sure to follow check procedures mentioned below after making adjustments on reticle
and perpendicularity of line of sight to horizontal axis.
[Checks]
① Set up the instrument and turn the power on.
② Sight the telescope at any reference target A at Normal state. Read the vertical angle (y).
③ Turn the telescope and rotate the alidade. Sight the same target A again at Back state and
read the vertical angle R.
If y+R = 360°, no further adjustment is necessary.
[Adjustments]
If the deviation d (y+ R - 360° ) is wide, contact your local dealer.
10.6 Laser Plummet
Checks
①Set the instrument on the tripod, and place a piece of white paper with a cross drawn on it
right under the instrument.
②Press the [LASER] key, and move the paper so that the intersecting point of the cross
comes to the center of the Laser mark.
③Rotate the instrument around the vertical axis, and observe the center mark position against
the intersecting point of the cross at each 90° rotation.
④If the Laser mark always coincides with the intersecting point, no adjustment is necessary.
Adjustments
When a center part where a cross intersection and the laser mark look the brightest shifts by
0.8mm or more (at the instrument height 1.5m), it is necessary to adjust it. A repair engineer
does this adjustment. Please contact the PENTAX dealer.
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