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DT-100 Series Specifications
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TECHNICAL SPECIFICATIONS
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| Model | DT-101 | DT-102 | DT-103 | DT-104 |
| Telescope: | ||||
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Length:
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149mm | 149mm | 149mm | 149mm |
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Objective Lens:
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45mm (1.77 in) | 45mm (1.77 in) | 45mm (1.77 in) | 40mm (1.6 in) |
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Magnification:
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30x | 30x | 30x | 26x |
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Image:
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Erect | Erect | Erect | Erect |
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Field of View:
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1°30' | 1°30' | 1°30' | 1°30' |
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Resolving Power:
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2.5" | 2.5" | 2.5" | 3" |
| Minimum Focus: | 0.9m (2.9ft) | 0.9m (2.9ft) | 0.9m (2.9ft) | 0.9m (2.9ft) |
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Stadia Constant:
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0 | 0 | 0 | 0 |
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Stadia Ratio:
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100 | 100 | 100 | 100 |
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| Electronic Angle Measurement | ||||
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Method:
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Incremental Reading | Incremental Reading | Incremental Reading | Incremental Reading |
| Detecting: |
Horizontal: 2 sides Vertical: 2 sides |
Horizontal: 2 sides Vertical: 1 side |
Horizontal: 2 sides Vertical: 1 side |
Horizontal: 1 side Vertical: 1 side |
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Minimum Reading:
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1"/5" (0.2mgon/1mgon) |
5"/10" (1mgon/2mgon) |
5"/10" (1mgon/2mgon) |
10"/20" (2mgon/4mgon) |
| Accuracy *1: | 2" | 5" | 7" | 10" |
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Diameter of Circle:
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71mm | 71mm | 71mm | 71mm |
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Display
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Display Panel:
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2 Sides | 2 Sides | 2 Sides | 1 Side |
| Illumination: | Provided | Provided | Provided | Provided |
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Compensator
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Tilt Sensor:
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Automatic vertical compensator | Automatic vertical compensator | ––– | ––– |
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Compensating Range:
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±3' | ±3' | ––– | ––– |
| Optical Plummet Telescope | ||||
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Magnification:
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3x | 3x | 3x | 3x |
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Field of View:
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5° | 5° | 5° | 5° |
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Focusing Range:
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0.5m~ |
0.5m~ |
0.5m~ |
0.5m~ |
| Level Sensitivity | ||||
| Plate Level: | 30"/2mm | 40"/2mm | 40"/2mm | 60"/2mm |
| Circular Level: | 10'/2mm | 10'/2mm | 10'/2mm | 10'/2mm |
| Water/Dust Protection | ||||
| Standard (Based on IEC529): | IP-42 | IP-66 | IP-66 | IP-66 |
| Power Supply | ||||
| Battery: | Four AA batteries | Four AA batteries | Four AA batteries | Four AA batteries |
| Operating Time | ||||
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Alkaline Battery:
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12 hours | 40 hours | 50 hours | 68 hours |
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Others
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| Tribrach Type: | Detachable | Detachable | Detachable | Fixed |
| Instrument Height: | 176mm (6.93 in) | 176mm (6.93 in) | 176mm (6.93 in) | 176mm (6.93 in) |
| Size | ||||
| Dimensions (D x W x H): |
149 x 180 x 313mm (5.9 x 7.1 x12.3 in.) |
149 x 180 x 313mm (5.9 x 7.1 x12.3 in.) |
149 x 180 x 313mm (5.9 x 7.1 x12.3 in.) |
149 x 180 x 305mm (5.9 x 7.1 x12.0 in.) |
| Weight: | 4.3kg (9.5 lbs.) | 4.1kg (9.0 lbs.) | 4.1kg (9.0 lbs.) | 3.4kg (7.5 lbs.) |
* 1) Standard deviation based on DIN 18723