Sokkia Auto Level Machine
Product Code: B-20 & B-40
Availability: In Stock
Specifications of Sokkia B20 / B30/ B40 Automatic Level
TELESCOPE | Sokkia B20 Level | Sokkia B30 Level | Sokkia B40 Level |
Magnification | 32X | 28X | 24X |
Objective Aperture | 42mm (1.65 in.) | 36mm (1.42 in.) | 32mm (1.26 in.) |
Resolving Power | 3 in. | 3.5 in. | 4 in. |
Field of View | 1°20’ | 1°25’ | 1°25’ (at 100m/328ft.) |
Min. Focus from end of telescope | 0.2m (7.9 in.) | 0.2m (7.9 in.) | 0.2m (7.9 in.) |
Min. Focus from instrument center | 0.3m (1 ft.) | 0.3m (1 ft.) | 0.3m (1 ft.) |
Image | Erect | Erect | Erect |
Focusing Knob | 2-speed | 1-speed | 1-speed |
Sighting Aid | Peep Sight | Gun Sight | Gun Sight |
ACCURACY | Sokkia B20 | Sokkia B30 | Sokkia B40 |
Without Micrometer | 0.7mm (0.03 in.) | 1.5mm (0.06 in.) | 2.0mm (0.08 in.) |
With Micrometer | 0.5mm (0.02 in.) | n/a | n/a |
COMPENSATOR | Sokkia B20 | Sokkia B30 | Sokkia B40 |
Type | Pendulum compensator with magnetic damping system | ||
Setting Accuracy | 0.3 in. | 0.5 in. | 0.5 in. |
Working Range | ±15 ft. | ±15ft. | ±15 ft. |
CIRCULAR LEVEL | Sokkia B20 | Sokkia B30 | Sokkia B40 |
Sensitivity | 10 ft./2mm | 10 ft./2mm | 10 ft./2mm |
HORIZONTAL CIRCLE | Sokkia B20 | Sokkia B30 | Sokkia B40 |
Diameter | 103mm (4.1 in.) | 103mm (4.1 in.) | 103mm (4.1 in.) |
Minimum Division | 1°/1gon | 1°/1gon | 1°/1gon |
Operating Temperature | -4°F to +122°F (-20ºC to +50ºC) | ||
Width | 5.12 in. (130mm) | 5.12 in. (130mm) | 5.12 in. (130mm) |
Length | 8.46 in. (215mm) | 8.46 in. (215mm) | 8.46 in. (215mm) |
Height | 5.51 in. (140mm) | 5.51 in. (140mm) | 5.31 in. (135mm) |
Weight | 4.1 lbs. (1.85kg) | 3.7 lbs. (1.7kg) | 3.7 lbs. (1.7kg) |