| Model |
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-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 |
| Tilt sensor |
|
| Type |
Dual-axis(DTM-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-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-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 |
| Quick charger Q-75U/E |
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) |
| |
|
In addition to the enhancement of functions inherited from their predecessors—the DTM-350 and DTM-330—the new models feature a large graphic LCD, ergonomic keyboard and improved software for superior operability. They also come with a remarkable long battery life of 16 hours, IPx6 waterproof construction and intelligent feature coding systems. A 10,000-record data memory with job manager is available as is an newly designed EDM that offers increased speed and range. Moreover, they incorporate Nikon’s superb optics as well as powerful and practical on-board survey programs. And all features are housed in a light and compact design.
