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10 CHECKS AND ADJUSTMENTS
10-6 Laser Plummet
Checks
qSet the instrument on the tripod, and place a piece of white paper with a
cross drawn on it right under the instrument.
wPress the [LASER] key, and move the paper so that the intersecting point of
the cross comes to the center of the Laser mark.
eRotate the instrument around the vertical axis, and observe the center mark
position against the intersecting point of the cross at each 90°rotation.
rIf 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.
PENTAX R-300 (p65-88) 10/30/02 11:11 AM Page 71