High Precision 24X Sokkia B40 Auto Level Survey Instrument - China Suppliers Factory Quality
Superior Telescope
Optimally designed telescope provides exceptionally bright and sharp view that reduces operator's eye strain. Ultra-short focus distance of 20cm (7.9in.) from end of telescope makes it easiest to use in confined locations.
Quick Collimation
Two knobs of endless horizontal motion drives can be operated with either hand for fast and easy aiming. Horizontal Angle Measurement Horizontal angles can be read in 1° or 1 gon units. Freely rotatable circle allows any angle reading from zero. Right angles can be quickly set for layout and alignment tasks. The readout window is conveniently located on the instrument base - directly below the eyepiece.
Stadia
The stadia lines on the reticle allow distance measurements. Simply multiply the staff length between the top and bottom stadia lines by 100.
Easy To Adjust
Reticle adjustment is made with one screw. Circular levels vial is adjusted with two screws. Both adjustments are simple and fast with provided tools.
Specification
| Model | B40 |
| Telescope | |
| Length | 214mm (8.42in.) |
| Magnification | 24x |
| Objective aperture | 32mm (1.26in.) |
| Resolving power | 4" |
| Field of View | 1°25' (2.5m / 8.2ft. at 100m/328ft.) |
| Minimum focus | 0.2m (7.9in.) from end of telescope 0.3m (1ft.) from instrument center |
| Image | Erect |
| Reticle pattern | Cross line |
| Stadia constant | 0 |
| Stadia ratio | 100 |
| Focusing knob | 1-speed |
| Sighting aid | Gun sight |
| Lens hood | - |
| Accuracy (standard deviation for 1km double run leveling) | |
| Without micrometer | 2.0mm (0.08in.) |
| With micrometer | - |
| Compensator | |
| Type | Pendulum compensator with magnetic damping system |
| Setting accuracy | 0.5" |
| Working range | ±15' |
| Circular level | |
| Sensitivity | 10' / 2mm |
| Mirror | Plane mirror |
| Horizontal circle | |
| Diameter | 103mm (4.1 in.) |
| Graduations | 1° / 1gon |
| General | |
| Horizontal motion drive | Clampless, endless, double-sided knobs |
| Water resistance | IPX6 (IEC 60529:2001) |
| Operating temperature | -20 to +50°C (-4 to +122°F) |
| Width | 130mm (5.12in.) |
| Length | 215mm (8.46in.) |
| Height | 135mm (5.31in.) |
| Weight | 1.7kg (3.7 lb.) |
Frequently Asked Questions
The SOKKIA B series levels feature tough and compact bodies tightly sealed against water, humidity, and dust, achieving an IPX6 rating (IEC 60529:2001).
The B40 features an ultra-short focus distance of 0.2m (7.9 in.) from the end of the telescope, and 0.3m (1ft.) from the instrument center, making it highly effective in confined locations.
Horizontal angles can be read in 1° or 1 gon units. The freely rotatable circle allows any angle reading from zero, and the readout window is conveniently located on the instrument base directly below the eyepiece.
The stadia lines on the reticle allow for quick distance measurements. You simply multiply the staff length between the top and bottom stadia lines by the stadia ratio of 100.
The B40 is equipped with a pendulum compensator with a magnetic damping system. It offers a setting accuracy of 0.5" and a working range of ±15'.
Adjustments are simple and fast using the provided tools. The reticle adjustment requires only one screw, while the circular level vial is adjusted with two screws.