High Precision Tribrach Non-Optical Plummet

• High-precision non-optical plummet tribrach designed to work with all total stations
• The error in angle measurement (hysteresis) is under 3 cc (60 Ncm torsion moment and 12 kg vertical load)
• A centre line on each of the levelling screws allows the user to balance the lengths of the levelling screws
• Features a 5/8 x 11 threaded base plate and 8-minute circular vial
• Includes the shortest-focus distance of 0.3 m to 15 m and an accuracy of 0.5 mm / 1.5 m
• The operating temperature for the tribrachs is -20º C to +50º C (-4º F to +122º F)
• Weighs 1.50 lb (0.70 kg)
• Same as standard but with added tension plate at each levelling screw to hold
  levelling screw pivot point in all directions
• Hardened material in levelling screw contacts to minimise wear
• Waterproof cap on levelling screws
• Orientation spring to ensure instrument or accessory is always positioned into
  same position in tribrach
• Tested on collimator stand to confirm torsional rigidity
• Torsional Rigidity: Rated <1 arc second
• Made in Hungary

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