Johnson-level-tool-mfg 40-6656 Instrukcja Użytkownika Pobierz pdf (Strona 12)

5. Move the tripod so that the distance between the instrument

and staff/wall A is 0.6 Meters, and make the cross dot project

on staff/wall A. Make a mark and label as ‘A2’.

6. Rotate the instrument by 180° and move the cross dot to proj-

ect on staff/wall B. Make a mark and label as ‘B2’.

7. Calculate (A1-A2) – (B1-B2) = e

8. If e> 1.5mm, the instrument is out of tolerance and must be

calibrated.

Less than 0.6 meters

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