Spectra Precision Nikon Catalog Combined - Manual (Page 15)

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Nik
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Pr
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DTM-322
SpecificationS DtM-322
DistAnce meAsurement
Range with Nikon specified prisms
Good conditions (No haze, visibility over 40 km
(25 miles))
With reflector sheet (5 × 5 cm)
With single prism 6.25 cm (2.5 in)
Normal conditions (Ordinary haze, visibility
approx. 20 km (12.4 miles))
With reflector sheet (5 × 5 cm)
With single prism 6.25 cm (2.5 in)
5 m to 100 m (16.4 ft to 328 ft)
2,300 m (7,540 ft)
5 m to 100 m (16.4 ft to 328 ft)
2,000 m (6,560 ft)
Accuracy (Prism/Precise mode)1, 2 ±(3+2 ppm × D) mm
Measuring interval3
Prism mode
Least count (Precise mode/Normal mode)
Precise mode
1.6 sec.
1 mm (0.002 ft)
Normal mode
1.0 sec.
10 mm (0.02 ft)
Angle meAsurement
ISO 17123-3 accuracy (horizontal and vertical)
Circle diameter
Horizontal angle
Vertical angle
Minimum increment
2"/0.6 mgon 5"/1.5 mgon
88 mm (3.46 in)
2"/Diametrical 5"/Single
2"/Single 5"/Single
Degree: 1/5/10"; Gon: 0.2/1/2 mgon;
MIL6400: 0.005/0.02/0.05 mil
telescope
Magnification 33Ч (21Ч/41Ч 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 time4 approx. 15 hours
(distance/angle measurement every 30 s.)
generAl specificAtions
Level vials – Sensitivity of Plate level vial
Sensitivity of Circular level vial
30"/2 mm
10'/2 mm
Optical plummet
Magnification
Focusing range
3×
0.5 m (1.6 ft) to ∞
Display 2"/Dual face, graphic LCD (128x64 pixel)
5"/Single face, graphic LCD (128 × 64 pixel)
Point memory 10,000 records
Dimensions (L x H x W) 168 mm × 173 mm × 335 mm
(6.6 in × 6.8 in × 13.2 in)
Weight
Main unit (without battery)
Battery / Carry case
4.8 kg (10.6 lb)
0.2 kg (0.4 lb) / 2.4 kg (5.3 lb)
environmentAl
Ambient temperature range –20 °C to +50 °C (–4 °F to +122 °F)
Atmospheric correction
Temperature range
Barometric pressure
–40 °C to +55 °C (–40 °F to +131 °F)
400 mmHg to 999 mmHg / 533 hPa to 1,332 hPa /
15.8 inHg to 39.3 inHg
Dust and water protection IP55
certificAtion Class B Part 15 FCC certification, CE Mark approval, C-Tick.
1 ±(3+3 ppm × D) mm –20 °C to –10 °C, +40 °C to +50 °C
(–4 °F to +14 °F, +104 °F to +122 °F).
2 Standard deviation based on ISO 17123-4
3 Measuring time may vary depending on measuring distance
and conditions.
4 Battery life specification at 25 °C (77 °F).