Description
With the DT50 Series, you’ll be up and working fast,
thanks to its simple interface and large, easy-to-see backlit LCD.
An optical plummet makes set up over a control point easy,
and a tilt sensor 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 that 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
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.o m
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
Laser only: ~ 80 hours
Compensation constant: ~ 55 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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