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Topcon DT-300 Digital Theodolite

New Durable, Precise Layout Tool!

The DT-300 is a lightweight compact alignment and angular measurement device which uniquely boasts up to 30 working days of power, the highest waterproof and dust protection, and convenient high precision laser guidance.
Features include

    High-accuracy (5”, 7” and 9” models) measurements
    Ultra-rugged IP66 dust and heavy rain protection
    Compact and light weight
    Long-lasting Li-ion or AA battery life
    Easy-to-use LCD backlit display
    Precise laser pointer guidance
    Embedded tilt sensor for 5” and 7” models

Digital Theodolite Topcon DT-309 / Topcon DT-309G

Speksifikasi

Telescope
- Length :
149mm
152mm (L models)
- Aperture : 45mm
- Magnification : 30X   
- Image : Erect
- Field of view : 1°30’ (26m/1,000m )
- Resolving power : 2.5"
- Minimum focus

• 0.9m  
• 1.0m(L)

- Stadia ratio : 100
- Stadia constant : 0

Angle measurement
- Method : Rotary absolute encoder  
- Detecting :
Horizontal: 1 sides  
Vertical: 1 sides  
- Minimum Reading

•  5" Model: 1" (0.0002 gon/0.01 mil)/5" (0.001 gon/0.1mil) (selectable)
•  7" Model: 5" (0.002 gon/0.05 mil)/10" (0.005 gon/0.1mil) (selectable)
•  9" Model: 10" (0.002 gon/0.05 mil)/20" (0.005 gon/0.1mil) (selectable)

  - Accuracy*1 5", 7”, 9”  

Display
- Unit

• 2 sides for 5” and 7” model  
• 1 side for 9” model  

Tilt angle compensation (5” and 7”models)
- 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’ /2mm  
- Plate level : 30"/ 2mm  

Power Supply
- Power source : 4 AA dry cells or BDC71 (Optional accessory)  

Operating Time (4 AA alkaline batteries)
- Theodolite only : about 230 hours  
- Laser only : about 80 hours (L Models)  
- Theodolite and laser about 55 hours (L Models)
 
Operating time (BDC71)
- Theodolite only : about 300 hours  
- Laser only : about 100 hours (L models)  
Theodolite and laser : about 70 hours (L models)  

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

Hardware
- Ingress Protection : Dust and water resistance IP66 (JIS C 0920 : 2003)  
- 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)
- Size (with handle)

• 5" and 7" Models: 173 (W) X 181 (D) X 318 (H) mm
• 9" Models: 173 (W) X 174 (D) X 318 (H) mm

- Weight (with batteries and battery holder)

• 5" and 7" Models: 4.1 kg (9.04 lb)
• 9" Models: 4.0 kg (8.82 lb)

Complete Set

- 1 x Alumunium Tripod

- 1 x Rambu Ukur