SOKKIA B20 32X Auto Level with Magnetic Damping - Reliable China Suppliers and Factory Options Available
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.
| Model | B20 |
| Telescope | |
| Length | 215mm (8.46in.) |
| Magnification | 32x |
| Objective aperture | 42mm (1.65in.) |
| Resolving power | 3" |
| Field of View | 1°20' |
| At 100m/328ft | (2.3m / 7.5ft.) |
| Minimum focus | 0.2m (7.9in.) from end of telescope |
| 0.3m (1ft.) from instrument center | |
| Image | Erect |
| Reticle pattern | Wedge |
| Stadia constant | 0 |
| Stadia ratio | 100 |
| Focusing knob | 2-speed |
| Sighting aid | Peep sight |
| Lens hood | Retractable |
| Accuracy (standard deviation for 1km double run leveling) | |
| Without micrometer | 0.7mm |
| (0.03in.) | |
| With micrometer | 0.5mm |
| (0.02in.) | |
| Compensator | |
| Type | Pendulum compensator with magnetic damping system |
| Setting accuracy | 0.3" |
| Working range | ±15' |
| Circular level | |
| Sensitivity | 10' / 2mm |
| Mirror | Pentaprism |
| 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 | 140mm (5.51in.) |
| Weight | 1.85kg (4.1 lb.) |
Frequently Asked Questions (FAQ)
The B series features a tough, compact body that is tightly sealed against water, humidity, and dust, carrying an IPX6 rating (EC 60529:2001).
The minimum focus distance is 0.2m (7.9in.) from the end of the telescope, and 0.3m (1ft.) from the instrument center, making it highly effective in confined spaces.
Distance measurements are performed using the stadia lines on the reticle. You simply multiply the staff length between the top and bottom stadia lines by 100.
The B20 utilizes a pendulum compensator equipped with a magnetic damping system, offering a working range of ±15' and a setting accuracy of 0.3".
The B series is designed to operate reliably in harsh environmental conditions within a temperature range of -20 to +50°C (-4 to +122°F).
No, the adjustment is simple and fast. Reticle adjustment requires only one screw, while the circular levels vial is adjusted with two screws using the tools provided.