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SPECIFICATIONS

DTM-322

Distance measurement

Range with Nikon specified prisms

Good conditions (no haze, visibility over 40 km (25 miles)

With reflector sheet (5*5cm)

5m to 100m (16.4ft to 328ft)

With single prism 6.25cm(2.5in)

2300 m (7540ft)

Normal Conditions

 (Ordinary haze, visibility appeox. 20 km (12.4 miles))

With reflector sheet (5*5cm)

5m to 100m (16.4 ft to 328 ft)

With single prism 6.25cm(2.5 in)

2000 m (6560ft)

Accuracy (prism/precise model)

±(3+2ppm X D) mm

Measuring interval

Precise model

Normal mode

  Prism model

1.6 sec

1.0 sec

  Least count (precise model/normal model)

1 mm (0.002 ft)

10 mm (0.02ft)

ANGLE MEASUREMENT

ISO 17123-3 accuracy (horizontal and vertical)

3’’/1.0 mgon

5’’/1.5 mgon

Circle Diameter

88mm (3.46 in)

Horizontal Angle

3’’/diametrical

5’’/single

Minimum increment

Degree: 1/5/10"; Gon: 0.2/1/2 mgon;

MIL6400: 0.005/0.02/0.05 mil

TELESCOPE

  Magnification

33× (21×/41× with optional eyepieces)

  Minimum focusing distance

1.5 m (4.92 ft)

TILT SENSOR – TYPE

Single-axis

COMMUNICATIONS – PORTS

1 x serial (RS-232C)

POWER

  Clip-on rechargeable battery system

4x AA Ni-MH Battery

  Operating time

GENERAL SPECIFICATIONS

approx.. 15 hours (continuous distance/angle measurement every 30 s.)

  Level vials – sensitivity of Plate level vial

30"/2 mm

  Sensitivity of Circular level vial

10'/2 mm

Optical plummet

  Magnification

3X

  Focusing range

0.5 m (1.6 ft) to ∞

Display

3"/Dual face, graphic LCD (128x64 pixel)

5"/Single face, graphic LCD (128 × 64 pixel)

Point memory

10,000 records

Dimensions(L*H*W)

168 mm × 173 mm × 335 mm

(6.6 in × 6.8 in × 13.2 in)

Weight:

  Main unit (without battery)

4.8kg (10.6 lb)

Battery /Carry case

0.2kg (0.4lb) / 2.4jg(5.3lb)

Environmental

Ambient temperature range

-40 cent degree + +55 cent degree

Atmospheric correction

  Temperature range

-40 cent degree + +55 cent degree

  Barometric pressure

400 mmHg to 999 mmHg/533 hPa,

Dust and water protection

IP55

Certification

FCC,CE,C-Tick