e-survey ET2A
ET2A
Theodolite
ET2A is a high precision electronic theodolite. This device has 2 "angle measurement accuracy and 30x magnification effect to meet various of working requirement.
Specifications
Angle Measurement | |
Measuring Method | Absolute encoder |
Diameter | 79mm |
Min. Reading | 1″, 5″,10″ |
Measuring Unit | 360°,400gon |
Vertical Angle 0°
| Zenith 0 °, Horizontal 0 ° |
Accuracy | 2 ″ |
Telescope | |
Image | Erect |
Magnification | 30x |
Effective Aperture | 47mm |
Resolving power | 3.75″ |
Field of View | 1°30″(26mm/1000m) |
Min. Focus | 1.5 m |
Stadia Ratio | 100 |
Tube Length | 169mm |
Compensator | |
Electronic Tilt Sensor | Vertical compensation |
Compensator Range | ±3′ |
Resolving Power | 6 ″ |
Vial | |
Plate Vial | 30″/2mm |
Circular Vial | 8 ′/2mm |
Display | |
Type | Two sides LCD |
Onboard battery | |
Power Resource | Rechargeable Li-on battery |
Voltage | DC 7.4 V |
Operation Time | BDC 1600 mAh (About 20 hours) |
Laser | |
Length of the Wave | 635 nm |
Power | 10 mW |
Effective Range | 250 m |
Position Error | ≤5″ |
Voltage | DC 3.3 V |
Working Temperature | - 10 °~+ 45 ° |
Others | |
Storage Temperature | - 10 °~+ 45 ° |
Dimension | 180 x 166 x 355 m |
Weight | 5 Kg |