Survey Instrument, Automatic Level, Precision Automatic Level manufacturer / supplier in China, offering High Accuracy Auto Precision Automatic Level Gowin Gw-B4 for Survey Instrument, Grinding Media Balls Manufacturers, Disposable N95 Medical Protective Face Mask Supplier and so on.
| Min. Order / Reference FOB Price | 1 pc | US $128/ pc |
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| Port: | Ningbo, China
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| Production Capacity: | 1000PCS Per Year |
| Payment Terms: | L/C, T/T, D/P, Western Union, Paypal, Money Gram |
| Certification: | Ce |
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| Delivery Time: | 5-8 Work Days Specific Time Need to Consult |
| Keywords: | Auto Level |
| Color: | Orange |
| Length: | 215mm (8.46 in.) |
| Magnification: | 24X |
High Accuracy Auto Precision Automatic Level Gowin GW-B4 for Survey Instrument
Product details:
Utilizing a finely tuned magnetic damping system, GW-B series automatic levels quickly level and stabilize the line of sight. These precision instruments ensure reliable leveling even when working near heavy equipment or busy highways where fine vibrations could be present. The automatic levels feature IPX6 protection against powerful water jets from all directions and are fully resistant to driving rain and splashing water.
Horizontal angles can be directly read in 1º or 1gon units. Free rotation feature allows you to read any angle from zero. The circle is covered for protection against dirt and scratch. The readout window is located below the eyepiece for quick reading.
• Durable, Dependable, High Value Auto Levels
• 3 Models - 32x, 28x, and 24x Magnifications
• Rapid, Accurate, and Stable Automatic Compensation
Rapid, Stable, and Durable Compensator
The compensator of GW-B Series incorporates four suspension wires made of super-high-tensile metal that features minimal thermal expansion coefficient, providing unmatched durability and accuracy. Finely tuned magnetic damping system quickly levels and stabilizes the line of sight despite the fine vibrations present when working near heavy equipment or busy roadways.
Horizontal Circle for Angle Measurement
Horizontal angles can be directly read in 1º or 1gon units. Free rotation feature allows you to read any angle from zero. The circle is covered for protection against dirt and scratch. The readout window is located below the eyepiece for quick reading.
20cm (7.9 in.) - Ultra-Short Minimum Focus
The GW-B Series can focus on objects at 20cm (7.9 in.) in front of the telescope. This feature dramatically facilitates the works in confined spaces.
| Technical Specifications | |||
| TELESCOPE | GW-B2 | GW-B3 | GW-B4 |
| Length | 215mm (8.46 in.) | 215mm (8.46 in.) | 215mm (8.46 in.) |
| 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.) |
| (at 100m/328ft.) | (2.3m/7.5 ft.) | (2.5m/8.2 ft.) | (2.5m/8.2 ft.) |
| 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 |
| Stadia Constant | 0 | 0 | 0 |
| Stadia Ratio | 100 | 100 | 100 |
| Focusing Knob | 2-speed | 1-speed | 1-speed |
| Sighting Aid | Peep Sight | Gun Sight | Gun Sight |
| ACCURACY | AT-B2 | AT-B3 | AT-B4 |
| 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 | AT-B2 | AT-B3 | AT-B4 |
| 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 | GW-B2 | GW-B3 | GW-B4 |
| Sensitivity | 10 ft./2mm | 10 ft./2mm | 10 ft./2mm |
| HORIZONTAL CIRCLE | AT-B2 | AT-B3 | AT-B4 |
| Diameter | 103mm (4.1 in.) | 103mm (4.1 in.) | 103mm (4.1 in.) |
| Minimum Division | 1°/1gon | 1°/1gon | 1°/1gon |
| GENERAL | GW-B2 | GW-B3 | GW-B4 |
| Water Resistance | IPX6 (IEC 60529:2001) | ||
| 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) |
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