Tilt Sensor - Sokkia 130R Series Operator's Manual

27. CHECKS AND ADJUSTMENTS
3. First confirm the off-center
direction.
Use the adjusting pin to loosen the
circular level adjustment screw on
the side opposite to the direction
the bubble is displaced to move
the bubble to the center.
4. Adjust the adjusting screws until
the tightening tension of the three
screws is the same to align the
bubble in the middle of the circle.
• Be careful that the tightening tension is identical for all the adjusting screws.
• Also, do not over-tighten the adjusting screws as this may damage the circular
level.
27.3

Tilt Sensor

If the tilt angle shown on the display shifts from tilt angle 0° (zero point), the
instrument is not correctly levelled. This will adversely affect angle measurement.
Perform the following procedure to cancel the tilt zero point error.
PROCEDURE Check
1. Carefully level the instrument. If
necessary, repeat the procedures
to check and adjust the bubble
levels.
2. Set the horizontal angle to 0°.
Press [0set] twice in the first page
of the Meas mode screen to set the
horizontal angle to 0°.
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