SPECIFICATIONS|
DT-200 Series |
|
SPECIFICATIONS |
| Name of Model | DT-205 | DT-207 | DT-209/209P |
| TELESCOPE | |||
| Length | 149mm | 149mm | 149mm |
| Objective lens | 45mm | 45mm | 40mm |
| Magnification | 30x | 30x | 26x |
| Field of view | 1°30' | 1°30' | 1°30' |
| Resolving power | 2.5" | 2.5" | 3" |
| Minimum focus | 90cm | 90cm | 90cm |
| Stadia ratio | 100 | 100 | 100 |
| Stadia constant | 0 | 0 | 0 |
| Sighting collimator | Double | Double | Double |
| Electronic Angle Measurement | |||
| Method | Absolute Reading | Absolute Reading | Absolute Reading |
| Detecting | Horizontal:2 sides | Horizontal:2 sides | Horizontal:1 side |
| Vertical: 1 side | Vertical: 1 side | Vertical: 1 side | |
| Minimum Reading | 1" / 5" | 5" / 10" | 10" / 20" |
| 0.2mgon/1mgon | 1mgon/2mgon | 2mgon/5mgon | |
| Accuracy | 5" | 7" | 9" |
| Diameter Circle | 71mm | 71mm | 71mm |
| DISPLAY | |||
| Unit | 2 sides | 2 sides | 1 side |
| LCD 7segments | LCD 7segments | LCD 7segments | |
| DATA OUTPUT | |||
| Serial signal connector | 
(RC-232C) |
--- | --- |
| ILLUMINATION | |||
| Display | |
|
|
| Reticle | |
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--- |
| COMPENSATOR | |||
| Tilt sensor |
(Vertical) |
--- | --- |
| Compensating range | ± 3' | --- | --- |
| OPTICAL PLUMMET TELESCOPE | |||
| Magnification | 3x | 3x | 3x |
| Field of view | 3° | 3° | 3° |
| Focusing | 0.5m ~∞ | 0.5m ~∞ | 0.5m ~∞ |
| LEVEL SENSITIVITY | |||
| Plate level | 40" / 2mm | 40" / 2mm | 60" / 2mm |
| Circular level | 10' / 2mm | 10' / 2mm | 10' / 2mm |
| WATER PROTECTION | |||
| Standard | IP66 | IP66 | IP66 |
| POWER SUPPLY | |||
| Battery | 4AA batteries | 4AA batteries | 4AA batteries |
| OPERATING TIME (Alk.) | |||
| Theodolite only | 140h | 150h | 170h |
| OPERATING TEMP. | |||
| -20°C ~ +50°C | -20°C ~ +50°C | -20°C ~ +50°C | |
| WEIGHT | |||
| 4.1kg | 4.1kg | 3.4/3.8kg | |