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Measurement
Operating Procedure
1.
Determine whether to use the close-up
lens (optional accessory) by
considering the size of the object to be
measured and the measuring distance.
Refer to the table below for the measuring
distance and circle diameter. When the close-up
lens is attached, you need to set the lens type
on the instrument. (Refer to page 42.)
Measuring distance and area
(Measuring angle)
No close-up lens
Close-up lens No. 153
Close-up lens No. 135
Close-up lens No. 122
Close-up lens No. 110
* The measuring distance is the distance from the measuring distance reference mark on the instrument.
Measuring circle diameter vs. measuring distance
1400
1200
1000
(7)
800
600
(8)
(4)
(9)
400
200
(10)
(5)
0
0
2
4
2.
Turn the visibility adjustment ring on
the viewfinder to adjust the visibility.
Observe the object to be measured through the
viewfinder and adjust the ring so that the
measuring circle is seen clearly. (Refer to
page 14.)
Minimum area ø
1/3°
1°
4.5
14.4
2.5
8.0
1.6
5.2
1.0
3.2
0.4
1.3
(6)
(2)
(3)
6
8
10
12
Measuring circle diameter (mm)
82
Maximum area ø
Shortest
distance
1/3°
1°
∞
∞
1012
5.9
18.8
627
2.7
8.6
455
1.3
4.3
331
0.5
1.5
213
(1)
14
16
18
(Unit: mm)
Longest
distance
∞
1219
625
378
215
(1) None
(1°)
(2) No.153 (1°)
(3) No.135 (1°)
(4) No.122 (1°)
(5) No.110 (1°)
(6) None
(1/3°)
(7) No.153 (1/3°)
(8) No.135 (1/3°)
(9) No.122 (1/3°)
(10) No.110 (1/3°)
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