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Specification
| Model | r-2801N | R-2802N | R-2803N | R-2805N | |||
| Telescope | Image | Erect | |||||
| Magnification | 30 x | ||||||
| Effective aperture | 45 mm | ||||||
| Resolving power | 3.0” | ||||||
| Field of view | 1°25’ | ||||||
| Minimum focus distance | 1.0 m | ||||||
| Focus | Manual | ||||||
| Distance measurement | Laser class | Visible laser: Class IIIa (Reflectorless, sheet) / Class I (Prism) | |||||
| Measurement Range | Good condition (*3) | ||||||
| Reflectorless (*1) | 800 m | ||||||
| Reflector sheet (*2) | 800 m | ||||||
| Mini Prism | 1,200 m | ||||||
| Prism 1P | 3,000 m | ||||||
| Prism 3P | 4,000m | ||||||
| Accuracy (*4) | Prism | ± (2 + 2 ppm x D) mm (Standard)
± (1.5 + 2 ppm x D) mm (Optional) |
|||||
| Reflector Sheet | ± (3 + 2 ppm x D) mm | ||||||
| Reflectorless | 2 ~ 150 m: ± (3 + 2 ppm x D) mm
150 ~ 300 m: ± (5 + 2 ppm x D) mm 300 ~ 500 m: ± (10 + 2 ppm x D) mm 500 ~ 800 m: ± (20 + 10 ppm x D) mm |
||||||
| Minimum Count | 0.1 mm (Fine mode), 1 mm (Normal mode),
10 mm (Track mode) |
||||||
| Measurement Time | Repeat fine | Prism / Ref. Sheet 3.0 sec., Ref.less 3.0 sec. (over 300 m 5.0 sec.) | |||||
| Repeat normal | Prism / Ref. Sheet 2.0 sec., Ref.less 2.0 sec. (over 300 m 4.0 sec.) | ||||||
| Repeat track | Prism / Ref. Sheet 0.4 sec., Ref.less 0.4 sec. (over 300 m 0.4 sec.) | ||||||
| Initial Fine | 1.5 ~ 300 m 3.5 sec., over 300 m ~ 13 sec. | ||||||
| Initial normal | 1.5 ~ 300 m 2.4 sec., over 300 m ~ 12 sec. | ||||||
| Initial track | 1.5 ~ 300 m 2.5 sec., over 300 m ~ 12 sec. | ||||||
| Angle Measurement | Measuring method | Absolute rotary encoder | |||||
| Detection method | Vertical / Horizontal angle
2 sides |
||||||
| Minimum count | 1” / 5” | ||||||
| Accuracy (ISO 17123-3) | 1” | 2” | 3” | 5” | |||
| Compensator | 2 axis | ||||||
| Compensator Range | 3’30” | ||||||
| Tangent Screw | 1 Seed / Clamping (< 30”) | ||||||
| Sensitivity of Vials | Plate level | 30”/1 div. (electrical) | |||||
| Circular level | 8’ / 2mm | ||||||
| Plummet | Visible laser, ± 0.5 mm (inst. height 1.5m) | ||||||
| Base | Detachable | ||||||
| Dust and Water Protection | IP55 (instrument only) | ||||||
| Ambient temperature | -20°C ~ 50°C / -4°F ~122°F (Working range) | ||||||
| Tripod Thread | 5/8” x 11 | ||||||
| Dimensions / Weight | Dimensions | 183 (W) x 342 (H) x 167 (L) mm | |||||
| Weight (battery not incl.) | 5.4 kg | ||||||
| Dimensions / weight | 440 (W) x 370 (H) x 275 (L) mm /3.9 kg | ||||||
| Power source | Li-ion 3,350 mAh X 2 = 6,700 mAh (hot swappable) | ||||||
| Operation time | Continuous approx. 8 hrs (ETH+EDM) with approx. 2.5 hrs of charging time | ||||||
| Weight | 5.4 kg | ||||||
| Battery Charger and AC Adapter | |||||||
| Input voltage | AC 100 to 240V | ||||||
| Output voltage | DC 8.4 V | ||||||
| Data Process | Data Recording Method | Internal Memory | |||||
| Capacity / Coordinates Data | Up to 2GB / 60,000 | ||||||
| Special function | PowerTopoExpress 2 | ||||||
| I/F | RS-232C, SD CARD, USB mini, Bluetooth (Class1) | ||||||
| Display / Keyboard | Display type | Graphic LCD / 20 characters x 8 lines / 240 x 96 pixels | |||||
| Quantity | 2 | ||||||
| Keys | 22 each | ||||||
| Display Backlight | Yes, 10 step intensity | ||||||
| Laser Pointer | Yes | ||||||
| Date Clock | Yes | ||||||
