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Sokkia B20 32× Optical Automatic Level
The Sokkia B20 is a 32× optical automatic level, selected explicitly for the original B20-3 catalog class. Its magnetic-damped pendulum compensator provides 0.7 mm standard deviation over one kilometer of double-run leveling, improving to 0.5 mm with the optional micrometer. Two-speed focusing, a retractable lens hood and a 20 cm minimum focus from the telescope end support detailed leveling work. This is an optical instrument, correcting the original rotating-laser label while preserving the quote alias.
Estimated equipment rental only. Delivery, taxes and applicable fees quoted separately. Final pricing confirmed with dispatch.
Specifications
Equipment
- Manufacturer
- Sokkia
- Model
- B20
Exact preferred optical level
- Model
- B20
- Instrument type
- Optical automatic level
- Magnification
- 32×
- Objective aperture
- 42 mm
- Optical resolving power
- 3 arc seconds
- Field of view
- 1°20′; 2.3 m at 100 m
- Minimum focus
- 0.2 m from telescope end; 0.3 m from instrument center
- Image
- Erect
- Reticle
- Wedge
- Focusing
- Two speed
- Lens hood
- Retractable
- Sighting aid
- Peep sight
- Telescope length
- 215 mm
Leveling and angle ratings
- Double-run standard deviation without micrometer
- 0.7 mm per 1 km
- Double-run standard deviation with optional micrometer
- 0.5 mm per 1 km
- Compensator
- Pendulum; magnetic damping
- Compensator setting accuracy
- 0.3 arc second
- Compensator working range
- ±15 arc minutes
- Circular level sensitivity
- 10 arc minutes per 2 mm
- Bubble-view mirror
- Pentaprism
- Horizontal circle diameter
- 103 mm
- Circle graduations
- 1° / 1 gon
- Horizontal motion
- Clampless, endless, double-sided knobs
- Stadia constant
- 0
- Stadia ratio
- 100
Housing and configuration
- Water resistance
- IPX6, IEC 60529:2001
- Operating temperature
- −20°C to +50°C
- Dimensions, W × L × H
- 130 × 215 × 140 mm
- Weight
- 1.85 kg
- Factory standard configuration
- Instrument; plumb bob; cleaning cloth; operator manual; lens cap; vinyl cover; tool kit; carry case
- Tripod and staff
- Separate compatible equipment
Equipment Details
Capabilities & Features
- Magnetic-damped compensator
- Two-speed focusing
- Retractable lens hood
- Endless horizontal fine adjustment
Available Options
- Compatible micrometer
- Survey tripod
- Leveling staff
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