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3) Take the micrometer reading in the micrometer eyepiece.
One division corresponds to 0.1 mm.
4) Adding the micrometer reading to the staff graduations
reading gives the measurement value.
Fig.7.4
Example:
Staff graduation
152 cm
Micrometer
+ 8.7 mm
152.87 cm
※
For accurate measurement, the last adjustment of the
micrometer knob should be in the clockwise direction.
Summary of Contents for B20
Page 1: ...SURVEYING INSTRUMENTS B20 B21 自動レベル Automatic Level 取扱説明書 OPERATOR S MANUAL ...
Page 2: ...This is the mark of the Japan Surveying Instruments Manufacturers Association ...
Page 56: ... 26 MEMO ...
Page 57: ... 27 MEMO ...
Page 58: ... 28 MEMO ...
Page 59: ......
Page 60: ...第 4 版 07 0910 2004 株式会社ソキア トプコン 4th ed 07 0910 2004 SOKKIA TOPCON LTD ...