Johnson Theodolites 40-6936 Manual De Instrucciones página 31

8863H-All_Manuals 3/19/15 3:25 PM Page 31
Calibrating
1. Level the instrument accurately with the long vial.
2. Power on the instrument, the vertical angle and horizontal angle
are displayed after the telescope passes zero position.
3. Press the FUNC key once, and then press the V/% key.
4. Rotate the instrument and precisely aim at the clear and stable
target A as high as the instrument in the distance.
5. Press the 0-Set key once.
6. Turn the instrument and aim the right of the vertical plate at the
same target A.
7. Press the 0-Set key and the measured values are set. The
instrument goes back to the angle measurement mode, and the
calibration is finished.
• Send the instrument to an authorized repair facility for repairs after operations are repeated many times
without any effect.
©2015 Johnson Level & Tool - Rev. 1
Operating Procedures Operation Display
Rotate the
telescope
Aim at the
plate left
position of A
Aim at the
plate right
position of A
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