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4-12
4 PREPARATION FOR MEASUREMENT
4.9 Target
4.9.1 Selecting the Target Sheet
Select the target sheet (large, medium, small) based on the distance to the object being scanned.
(Target sheet (large) is sold separately)
4.9.2 Assembling the Target
1
Coincide the alignment piece on the lower part of the prism-adapter with the tribrach alignment
groove.
2
Tighten the tribrach fixing lever firmly by turning clockwise.
3
Install the target board as shown in the illustration.
4
Tighten the settlement screw surely.
5
Put the magnetic target sheet on the target board.
At this point, adjust the center marks (4) of the target sheet and the target board exactly.
Target sheet
Distance to the object
being scanned (m)
Large
50-200
Middle
10-100
Small
2-50
Be sure to use target sheets for GLS-1500.
Tribrach fixing lever
Prism adapter (Sold separately)
Alignment piece
Tribrach (Sold separately)
Settlement
screw
Center mark
Target board
Target sheet
Center mark
Содержание GLS-1500 Series
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