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