High Precision 24X Sokkia B40 Auto Level Survey Instrument - Top China Suppliers & Factory for Accurate Measurements
SOKKIA B series automatic levels feature enhanced reliability under all environmental conditions. Tough and compact bodies are more tightly sealed against water, humidity and dust (IPx6). The B series levels provide quick setup, easy sighting, and superior durability against vibration and shock, ensuring the increased productivity over an extra-long period of time.
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.
Technical Specifications
| 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) |
| Dimensions (W x L x H) | 130mm x 215mm x 135mm (5.12in. x 8.46in. x 5.31in.) |
| Weight | 1.7kg (3.7 lbs.) |
Frequently Asked Questions
What is the environmental protection rating of the SOKKIA B series?
The SOKKIA B series automatic levels feature tough, compact bodies tightly sealed to meet the IPX6 rating, ensuring superior protection against heavy water spray, humidity, and dust.
What is the minimum focus distance of the SOKKIA B40?
The B40 has an ultra-short focus distance of 0.2m (7.9 inches) from the end of the telescope, making it exceptionally easy to use in confined or tight locations.
How does the stadia measurement function work?
The stadia lines on the reticle allow for quick distance measurements. You simply read the staff length between the top and bottom stadia lines and multiply that value by 100.
What kind of compensator is used in the B40 automatic level?
It features a highly stable pendulum compensator with a magnetic damping system, providing a setting accuracy of 0.5" and a working range of ±15'.
How easy is it to adjust the level in the field?
Adjustments are very simple and fast. Reticle adjustment requires only one screw, while the circular level vial is adjusted using two screws. All necessary tools are provided with the instrument.