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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.

1.      30x Telescope Magnification

2.      2" Angle measurement accuracy

3.      Compensator up to 3'

4.      Two sides LCD display

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
  • ET2A Electronic Digital Theodolite Maintenance Guide-V1.0-ENG.pdf
  • ET2A Electronic Digital Theodolite User Guide-V2.0-ENG.pdf
  • ET2A Datasheet-V2.0-ENG.pdf