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Model
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DTM-362, DTM-352, DTM-332
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Telescope
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Tube Length
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158mm/6.22 in.
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Magnification
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33x (21x/41x with optional eyepieces)
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Effective diameter of objective
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45mm/1.77 in. (EDM: 50mm/1.97 in.)
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Field of view
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1°20’
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Resolving power
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2.5”
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Minimum focusing distance
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1.3m/4.26 ft.
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Distance measurement
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Range with Nikon specified prisms
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Normal conditions
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(Ordinary haze, visibility approx. 20km/12.5 miles)
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With reflector sheet
(5 x 5cm)
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5 to 100m (16.4 to 328 ft.)
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With mini prism
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1,000m/3,280 ft.
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With single prism
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2,000m/6,560 ft
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With triple prism
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2,600m/8,530 ft.
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Good conditions
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(No haze, visibility of over 40km/25 miles)
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With reflector sheet
(5 x 5cm)
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5 to 100m (16.4 to 328 ft.)
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With mini prism
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1,200m/3,930 ft.
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With single prism
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2,300m/7.540 ft.
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With triple prism
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3,000m/9,840 ft.
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Accuracy (Prism/Precise mode)
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±(3+2ppm x D)mm
±(3+3ppm x D)mm (–20°C to –10°C, +40°C to +50°C
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Measuring interval*1
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Precise mode
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1.6 sec. (initial 1.6 sec.)
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Normal mode
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1.0 sec. (initial 1.4 sec.)
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Least count
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Precise mode
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1mm/0.002 ft.
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Normal mode
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10mm/0.02 ft.
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Ambient temperature
range*2
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–20°C to 50°C/–4°F to +122°F
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Atmospheric correction
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Temperature range
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–40°C to 60°C/–40°F to +140°F
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Barometric pressure
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400 to 999mmHg/533 to 1,332hPa/15.8 to 39.3 in.Hg
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Prism offset
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–999 to 999
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Angle measurement
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Reading system
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Photoelectric detection by incremental encoder
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Horizontal angle
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Diametrical(DTM-362/352), Single(DTM-332)
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Vertical angle
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Single
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Minimum increment
(Degree, Gon, MIL6400)
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Degree: 1/5/10”, Gon: 0.2/1/2mgon, MIL6400: 0.005/0.02/0,05mil
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DIN 18723 accuracy
(horizontal and vertical)
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5”/1.5mgon (3”/1.0mgon:DTM-362)
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Tilt sensor
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Type
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Dual-axis(DTM-362/352), Single-axis(DTM-332)
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Method
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Liquid-electric detection
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Compensation range
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±3'
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Setting accuracy
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1"
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Level vial
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Plate level vial
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30"/2mm
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Circular level vial
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10'/2mm
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Optical plummet
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Magnification
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3x
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Focusing range
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0.5m/1.6 ft. to ∞
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Display
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Graphic LCD (128 x 64 dot)
Both sides(DTM-362/352), Single side(DTM-332)
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Point memory
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10,000 records
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Dimensions (W x D x H)
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168 x 173 x 335mm/6.6 x 6.8 x 13.2 in.
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Weight (approx.)
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Main unit (with battery)
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5.3kg/11.7 lbs.(DTM-362/352),
5.2kg/11.5 lbs.(DTM-332)
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Battery
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0.4kg/0.9 lbs
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Carrying case
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2.4kg/5.3 lbs
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On-board Ni-MH battery
BC-65
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Operation time
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Continuous distance/angle
measurement
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Approx. 16 hours*3
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Distance/angle
measurement every 30 seconds
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Approx. 27 hours
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Angle measurement
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Approx. 30 hours
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Battery charger for BC-80/65
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Approx. 2.0 hours for full recharge
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Quick charger Q-70C (12V DC cigarette lighter charger)
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Approx. 2.0 hours (fully discharged BC-65 requires more than one charge)
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