Adjusting the Circular Level on the vPole

Adjusting the Circular Level on the vPole

Overview

The circular level (bull's-eye bubble) on the vPole should be checked and adjusted periodically to ensure accurate tilt compensation during measurements. If the bubble is off-center when the pole is plumb, adjustments are needed.

When to Check

  • After the vPole has been dropped or subjected to impact.
  • If measurements appear consistently off in one direction.
  • As part of periodic equipment checks.

Checking the Circular Level

  1. Set the vPole upright on a flat, stable surface or hold it vertically.
  2. Observe the circular level bubble. The bubble should be centered within the circle when the pole is truly vertical.
  3. If the bubble is off-center, adjustment is required.

Adjusting the Circular Level

  1. Use a 2 mm hex key to access the three adjustment screws located around the base of the circular level housing.
  2. To move the bubble toward a screw, tighten that screw slightly.
  3. To move the bubble away from a screw, loosen that screw slightly.
  4. Work in small increments, alternating between screws as needed, until the bubble is centered.
  5. Verify the adjustment by rotating the pole 180° and checking that the bubble remains centered.

Notes

  • If you cannot center the bubble with reasonable adjustments, the level vial itself may be damaged and the vPole should be serviced.
  • A misadjusted circular level will not affect tilt-compensated measurements as long as the iCS electronic level is within range, but it is good practice to keep it accurate.

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