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 Digital Theodolite Topcon DT-305L

Telescope

•     Length : 152 mm
•     Aperture : 45 mm
•     Magnification : 30X
•     Image : Erect
•     Field of view  : 1°30’ (26 m/1,000 m)
•     Resolving power : 2.5"
•     Minimum focus : 1.0 m
•     Stadia ratio : 100
•     Stadia constant : 0

Angle measurement
- Method : Rotary absolute encoder
- Detecting :

•      Horizontal: 1 sides
•      Vertical: 1 sides

- Minimum display : 1" (0.0002 gon/0.01 mil) / 5" (0.001 gon/0.1 mil) (selectable)

Display Unit : 2 sides

Tilt angle compensation

•     Type : Automatic vertical compensator
•     Range of compensation : ±3' (±0.0555 gon)
•     Compensation constant : Can be changed (compensation is done at the same time with vertical angle 0 point)

Optical plummet

•     Magnification : 3X
•     Minimum focus : 0.5 m

Sensitivity of levels

•      Circular level : 10’ /2 mm
•     Plate level : 30"/ 2 mm

Temperature

•      Operating temperature range : -20 to 50°C (-4 to 122°F)*2
•      Storage temperature range : -30 to 60°C (-22 to 140°F) (no condensation)

Environmental durability

•     Dust and water protection : IP66 (IEC 60529: 2001)
•     Power Supply (Standard)
•      Power source : 4 AA alkaline batteries

Working duration at 20°C (Standard)
 

•     Theodolite only : about 230 hours
•      Laser only : about 80 hours
•      Theodolite and laser : about 55 hours

Power Supply (Option)
 

•     Power source : BDC71 (Optional accessory)

Working duration at 20°C (Option)

•      Theodolite only : about 300 hours
•      Laser only : about 100 hours
•      Theodolite and laser : about 70 hours

Tribrach

•     Type : Detachable

Laser-pointer

•      Signal source : Red laser diode (633 nm)
•     Maximum output : 0.6 mW
•     Laser Class : Class 2
•     Laser beam range : 50 m (in daylight)

Others

•      Size (with handle) : 173 (D) X 181 (W) X 318 (H) mm (Display on both sides)
•      Weight : 4.1 kg (9.04 lb) (with batteries and battery holder)

Complete

- Alumunium Tripod 1x
- Rambu Ukur 1x