High Precision 24X Sokkia B40 Auto Level Survey Instrument - Reliable China Suppliers & Factory Quality
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.
Specification
| Model | B40 |
| Telescope | |
| Length | 214mm (8.42in.) |
| Magnification | 24x |
| Objective aperture | 32mm (1.26in.) |
| Resolving power | 4" |
| Field of View | 1°25' |
| At 100m/328ft. | (2.5m / 8.2ft.) |
| 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 (EC 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 (FAQ)
QWhat is the water resistance rating of the SOKKIA B series automatic levels?
The SOKKIA B series levels feature tough and compact bodies tightly sealed against water, humidity, and dust, achieving an IPX6 rating (IEC 60529:2001) for superior environmental protection.
QWhat is the minimum focus distance of the SOKKIA B40 telescope?
The telescope features an ultra-short focus distance of 0.2m (7.9 inches) from the end of the telescope, and 0.3m (1 foot) from the instrument center, making it highly effective in confined spaces.
QHow do you calculate distance using the reticle's stadia lines?
To measure distance with the stadia lines, simply read the staff length between the top and bottom stadia lines and multiply that value by the stadia ratio of 100.
QCan horizontal angle measurements be read in different units?
Yes, horizontal angles can be read in either 1° or 1 gon units. The instrument features a freely rotatable circle allowing you to read any angle directly from zero for quick layout and alignment.
QWhat type of compensator does the SOKKIA B40 use?
The SOKKIA B40 is equipped with a pendulum compensator featuring a magnetic damping system, providing a setting accuracy of 0.5" and a working range of ±15'.
QHow easy is it to adjust the SOKKIA B series automatic levels?
Adjustments are simple and fast. Reticle adjustment requires only one screw, while the circular level vial is adjusted with two screws. The necessary tools are provided with the instrument.