Model: DT402

Description: DT402 Precision Optical Theodolite

Introduction:

Measure longitudinal axis, lateral axis(center line), verticality, horizontal angle and vertical angle. Applicable for railway, highway, bridge, water conservancy, mining, building, large equipment installation, cadastral survey, topographic survey and engineering survey.

Features:

1. Large screen, convenient to operate.

2. Absolute coding angle measuring system.

3. Electronic compensator.

4. Measuring angle repeatedly to get average value to improve accuracy.

5. Panel operation.

Technology parameters:

1. Angle measurement: (a) Measuring method: absolute coding; (b) min reading: 1″; (c) Accuracy: 2″.

2. Telescope: (a) Objective aperture: 45mm. (b) Magnification: 30×. (c) Imaging: erect image. (d) Field angle: 1°30′. (e) The shortest sighting distance: 1.0m.

3. Display: (a) Display screen: double sided. (b) Lighting: yes.

4. Compensator: (a) Inclination sensor: automatic vertical compensation.

 (b) Compensation range: ± 3′.

5. Spirit level: (a) long spirit level: 30″/2mm. (b) circular spirit level: 8′/2mm.

6. Power: (a) battery: 6V, rechargeable Ni-MH battery. (b) Battery working time: 15 hours.

7. Optical plummet: DT402

8. Data interface: RS-232C

9. Dimension: 153×175×328mm

10. Working temperature: -20℃ ~ +50℃

11. Weight: 4.0kg