Hilger Watts Theodolite Manual Jun 2026

Loosen the tripod centering screw slightly and slide the instrument on the tripod head until the optical plummet is perfectly centered on the ground mark. Retighten and recheck the levels. 5. Reading the Optical Circles

Before operating a Hilger & Watts instrument, it is vital to identify its primary controls, clamps, and optical components.

Extend the tripod legs to a comfortable working height and secure the leg hinges tightly. hilger watts theodolite manual

. Any significant deviation indicates a collimation error that requires mechanical adjustment via the reticle screws. 6. Sourcing Original Manuals and Digital PDFs

Geodetic surveying, triangulation, precise industrial alignment, and underground mining. Loosen the tripod centering screw slightly and slide

Three-screw tribrach, often featuring an integrated optical plummet.

Many Hilger Watts theodolites allow you to "plunge" the telescope (rotate it 180 degrees in the vertical plane) to check collimation. The manual describes how to release the vertical circle clamp safely without unbalancing the instrument, preventing internal damage. Reading the Optical Circles Before operating a Hilger

Look through the and shift the tripod legs until the crosshairs are centered roughly over your ground mark. Step 3: Precise Leveling (The Three-Screw Method)

Adjust the tripod leg heights until the bubble in the circular leveling vial rests in the center. Fine Leveling (Plate Bubble):

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Turn Screws A and B simultaneously in opposite directions (both thumbs moving inward, or both thumbs moving outward) until the bubble is perfectly centered.