GT-118
◎Usage and Scope of Application of the Instrument : This series of electronic theodolite adopts the photoelectric incremental angle measuring system. They integrate laser, mechanical, electronic and computer technologies all in one, realizing a variety of functions including angle measurement, display and storage. They can also display horizontal and vertical angles and realize conversion from vertical angle to gradient and compensation of vertical angle. The precision of angle measurement is 5".
◎This series of electronic theodolite find wide applications in the Grade III and Grade IV triangle control measurement in national and urban projects, including engineering measurement in railway, highway, bridge, water conservancy, mining projects, etc. It can be also used in various engineering in construction, erection of large equipment and land register and topographic survey and various kinds of engineering measurement.
| Model No. | GT-118(L) |
| Telescope | |
| Objective aperture | Φ45mm |
| Image | Erect |
| Magnification | 30 X |
| Field of view | 1° 30' |
| Mini focus | 1.35m |
| Angle | |
| Reading system | Photoelectric incremental encoder |
| Minimum reading | 1" / 5" |
| Accuracy | 5" |
| Displays | |
| Illumination | YES |
| Display panel | Both |
| Optical plummet | |
| Accuracy | ≦ 0.5mm / 1.5m |
| Image | Erect |
| Magnification | 3 X |
| Field of view | 5∘ |
| Focus range | 0.5m 〜 ∞ |
| Laser plummet ( Optional ) | |
| Accuracy | ≦ 1.0mm / 1.5m |
| Laser spot size | Adjustable |
| Laser class | Class 2 |
| Focus range | 0.5m 〜 ∞ |
| Level sensitivity | |
| Plate level | 40"/2mm |
| Circular level | 8′/2mm |
| Power supply | |
| Battery | Alkaline battery Rechargeable Ni-Hm Battery |
| Working time | Alkaline battery 20hr |
| Charger | 4.8V |
| Other | |
| Dimensions | 180×170×360mm |
| Weight | 5.8kg |
| Operating temperature | – 20℃ 〜 + 50℃ |