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| MODEL | iM-52 | iM-55 | |||
| Telescope | |||||
| Magnification / Resolving power | 30x / 2.5” | ||||
| Others | Length : 171mm (6.7in.), Objective aperture : 45mm (1.8in.) (48mm (1.9in.) for EDM), Image: Erect, Field of view: 1°30’ | ||||
| (26m/1,000m), | |||||
| Minimum focus: 1.3m (4.3ft.) Reticle illumination: 5 brightness levels | |||||
| Angle Measurement | |||||
| Minimum Display (selectable) | 1"/5" (0.0002 / 0.001gon, 0.005 / 0.02mil) | ||||
| Accuracy (ISO 17123-3:2001) | 2” | 5” | |||
| Dual-axis compensator | Dual-axis liquid tilt sensor, working range: ±6’ | ||||
| Collimation compensation | On/Off (selectable) | ||||
| Distance Measurement | |||||
| Laser output*1 | Reflectorless mode : Class 3R / Prism/sheet mode : Class 1 | ||||
| Measuring range | Reflectorless*3 | 0.3 to 500m (1,640ft.) | |||
| (under average conditions*2) | Reflective sheet *4/*5 | RS90N-K: 1.3 to 500m (4.3 to 1,640ft.), RS50N-K: 1.3 to 300m (4.3 to 980ft.), RS10N-K: 1.3 to 100m (4.3 to 320ft.) | |||
| Minimum Display | Fine / Rapid : 0.0001m (0.001ft. / 1/16 in.) / 0.001m (0.005ft. / 1/8 in.) (selectable) Tracking / Road : 0.001m (0.005ft. / 1/8 | ||||
| in.) / 0.01m (0.02ft. / 1/2 in.) (selectable) | |||||
| Accuracy*2 | Reflectorless*3 | (2 + 2ppm x D) mm*6 | |||
| (ISO 17123-4:2001) | Reflective sheet*4/5 | (2 + 2ppm x D) mm | |||
| (D=measuring distance in mm) | Prism*7 | (1.5 + 2ppm x D) mm | |||
| Measuring time*8 Fine | 0.9s (initial 1.5s) | ||||
| Rapid | 0.6s (initial 1.3s) | ||||
| Tracking | 0.4s (initial 1.3s) | ||||
| Operating system | Linux | ||||
| Display / Keyboard | Graphic LCD, 192 x 80 dots, backlight : on/off (Selectable) / Alphanumeric keyboard / 28 keys with backlight | ||||
| Control panel location | On both faces | On single face | |||
| Data storage | Internal memory | Approx. 50,000 points | |||
| Plug-in memory device | USB flash memory (max. 32GB) | ||||
| Interface | Serial RS-232C, USB2.0 (Type A, for USB flash memory) | ||||
| modem (option)*9 | Class 1.5, Operating range: up to 10m*10 | ||||
| Laser-pointer | Coaxial red laser using EDM beam | ||||
| Levels | Graphic | 6’ (Inner Circle) | |||
| Circular level (on tribrach) | 10’ / 2 mm | ||||
| Plummet | Optical*11 | Optional | Standard | ||
| Laser*12 | Standard | Optional | |||
| Dust and water protection / Operating temperature | IP66 (IEC 60529:2001) / -20 to +60ºC (-4 to +140ºF) | ||||
| Size with handle | 183(W)x 181(D)x 348(H)mm | 183(W)x 174(D)x 348(H)mm | |||
| (On both faces) | (On single face) | ||||
| Instrument height | 192.5mm from tribrach mounting surface | ||||
| Battery | Li-ion rechargeable battery BDC46C | ||||
| Operating time (20ºC)*13 | Approx. 14hours*14 | ||||

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