Designed for construction and layout application, the Sokkia DT740 7 Second Digital Theodolite features superior optics, advanced absolute encoder and tilt sensors for precise angle measurements. This optical instrument provides surveyors with exceptional viewing quality with its telescope’s 30X magnification and 2.5-inch resolving power.
Features Digital Theodolite Sokkia DT-740 7-second
• Measure horizontal and vertical angles
• 7-second accuracy
• 2.5-inch telescope resolving power
• Absolute encoder
• Audible right-angle notification
• Optical plummet
• Detachable tribrach
• Reticle illumination for good viewing in low light conditions
• Water resistant and dustproof to IP-66
• Dual backlit LCD display
• Up to 150-hour battery life
Specification Digital Theodolite Sokkia DT-740 7-second
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Telescope
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| Image | Erect |
| Magnification | 30x |
| Diameter of Objective Lens (Aperture) | 1.8 in (45 mm) |
| Focus Distance | 3 ft (0.9 m) |
| Field of View | 1 degree 30' |
| Ratio of Stadia Lines | 100 |
| Resolving Power | 2.5-inch |
| Length of Tube | 5.9 in (149 mm) |
| Reticule Illumination | yes |
|
Optical Plummet
|
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| Image | Erect |
| Magnification | 3x |
| Field of View | 3 degrees |
| Focus Range | 1.64 ft (0.5 m) |
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Angle Measurement
|
|
| Display | 5"/10" (1/2mgon) |
| Accuracy | 7-second |
| Circle Diameter | 2.8 in (71 mm) |
| Measuring Method/Reading System | Absolute rotary encoder scanning |
| Detection Method | Horizontal: diametrical; vertical: single |
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Level
|
|
| Plate/Tubular Bubble Vial | 40 seconds/2 mm |
| Circular Bubble Vial | 10 minutes/2 mm |
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General
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| Weight | 9.0 lbs (4.1 kg) |
| Warranty | 1-year |
| Dimensions | 7.4 x 5.9 x 12.3 in (18.8 x 14.9 x 31.3 cm) |
| Protection Class | IP-66 (dustproof and protection against water jets and heavy seas) |
| Tribrach | Detachable |
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Battery/Power
|
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| Power Source | 4 x LR6/AA batteries |
| Battery Life | 150 hours |
| Battery Life Alert | yes |
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Applications
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| 90-Degree Layout | yes |
| Checking Angles | yes |
| Alignment and Plumb | yes |
| Short-Range Leveling | yes |
| General Construction | yes |
| Anchor Bolt Positioning | yes |
| Steel Column Placement | yes |
| Setting Elevations | yes |
| Setting Lines | yes |
| Basic Grade Work | yes |
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Display and Keypad
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| Type | LCD, 7 digits x 2 lines |
| Sides | Dual |
| Backlight | yes |
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Temperature
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| Operating | -4°F to +122°F (-20°C to +50°C ) |
