B1 - Ultra Precise, Rugged, and Compact Accuracy over 1km double-run levelling is a remarkable 0.8mm, and it can be improved to 0.5mm using the optional parallel plate micrometer OM1. Horizontal line of sight stability is assured by four suspension wires and a magnetic-damping compensator. Operation is convenient, thanks to features such as the two-speed focussing knob, distance-giving stadia lines, and even the choice of horizontal circles (on the B1C).
Accurate Levelling
The level's reticle can be fitted with the optional parallel plate micrometer for precise measurement in increments of 0.1mm (estimation 0.01 mm). The accuracy obtained over 1 km double-run levelling is boosted from 0.8mm to a remarkable 0.5mm with the parallel plate micrometer.
Rapid, Easy Set-Up
Using a spherical-head tripod, setting up the level is fast and easy even on angled, uneven surfaces. Set the level onto the tripod head, centre the circular bubble, and away you go. It also its flat-head tripods.
Reliable Automatic Compensator
Four suspension wires and magnetic damping action ensure stability, even under rapidly changing atmospheric conditions, vibration, and shock. Precise damping even copes with "hang-ups" in the compensator.
Precise Collimation
This model incorporates an endless horizontal motion drive with two knobs for fast and easy aiming operable by right or left hand turn the instrument, fine motion to aim the level target precisely. A two-speed focussing knob switches between coarse and fine focussing for even faster operation. The optics are designed to be bright and easy to use.
Stadia
The stadia wires on the reticle allow easy calculations distance on the rod between the top and the bottom stadia lines by 100.
Standard Package
Instrument
Lens cap
Vinyl cover
Tool kit
Operation manual
Carrying case
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