Technical parameter

SJDJ-02L

SJDJ-05L

SJDJ-10L

SJDJ-20L

TELESCOPE 

Image

Erect

Magnification

30×

Clear Objective aperture

45mm

Angle of field of view

1°30′

Shortest stadia

1.35m

Stadia multiplying constant 

100

Stadia additive constant 

0

Resolving power

3″

MEASURING ANGLE SYSTEM

Method of measuring angle

Incremental mode readings of photoelectricity

Minimum reading 

1″5″

Method of detecting 

H:two sides V:one side

Accuracy of measuring angle

2″

5″

10″

20″

Angle unit

DEG  MIL GON

Display

LCD two sides

COMPENSATOR

Tilt sensor

plumb compensation automatically

——

——

——

Range of compensator

±3′

——

——

——

PLUMMET

laser

Laser power

1mW

Facular diameter

≤2mm

Alignment accuracy

1.5mm(1.5m height of theodolite )

Bubble

Accuracy of plate bubble

30″/2mm

Accuracy of circular bubble

8′/2mm

Working environment temperature

　-20℃~+50℃

Laser pipe 

Wavelength

635nm

Power

5mW

Largest measuring distance

180m（under sunshade daytime）

Central facular diameter

≤3mm∕100m

Non-coaxial error between laser axis  and collimation axis  

≤10″

Power Supply

Battery

Dry battery or  charged nickel-hydrogen battery

Power Voltage

4.8V

Continuous operating time

36h(without laser）

Weight of theodolite

4.6kg

Dimensions

164×154×340mm