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CONTENTS
1. PRECAUTIONS FOR SAFE OPERATION ..... 1
2. PRECAUTIONS .............................................. 5
3. FEATURES OF B2
0/B30/B40 .......................... 7
4. PARTS OF THE INSTRUMENT ...................... 8
5. PRELIMINARIES ............................................ 9
5.1 SETTING UP THE INSTRUMENT .................9
5.2 FOCUSSING AND SIGHTING .....................11
6. OPERATION .................................................13
6.1 MEASURING HEIGHT DIFFERENCE .........13
6.2 MEASURING HORIZONTAL ANGLE ..........15
6.3 MEASURING DISTANCE USING
THE STADIA LINES .....................................16
7. CHECKS AND ADJUSTMENTS ................... 17
7.1 CIRCULAR LEVEL .......................................17
7.2 AUTOMATIC COMPENSATOR ...................18
7.3 RETICLE CROSS-LINE (LINE OF SIGHT) ..19
8. STANDARD EQUIPMENT ............................ 21
9. OPTIONAL ACCESSORIES .........................23
10.SPECIFICATIONS ......................................... 27
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