Description
With the DT50 Series, you’ll be up and working fast, thanks to its simple interface and large,
easy-to-see backlit LCD. There’s an optical plummet that makes set up over a control point easy,
and a tilt sensor that provides ±3-minute angle correction. The DT50 Series features
two magnification choices of 26x and 30x, a super-short 3 ft. minimum focus distance for those tight areas,
and angle accuracies of 5, 7, and 9 arc seconds. Lightweight compact alignment and angular
measurement devise which uniquely boasts up to 30 working days of power,
the highest waterproof and dust protection, and convenient high precision laser guidance.
Features:
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
Dual Display for 5” and 7” models. Single Display for 9” models
Specifications:
Telescope
Aperture: 45 mm
Magnification: 30x
Image: Erect
Field of view: 1°30′ (26 m/1,000 m)
Resolving power: 2.5”
Stadia ratio: 100
Stadia constant: 0
Angle Measurement
Method: Rotary absolute encoder
Detecting: Horizontal: 1 side Vertical: 1 side
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′ / 2 mm
Plate level: 30″ / 2 mm
Power Supply
Mode: 4 AA dry cells or BDC71 (Optional accessory)
Operating Time (4 AA Alkaline Batteries)
Theodolite only ~ 250 hours
Operating Time (BDC71)
Signal source: Red laser diode (633 nm)
Maximum output: 0.6 mW
Laser class: Class 2
Laser beam range: 50 m (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) W x D x H: 5” and 7” Models: 173 x 181 x 318 mm / 9” Models: 173 x 174 x 318 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)
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