|
DTM-652 |
NPL-632 |
Telescope |
Tube length |
158mm (6.22ft) |
153mm (6.02in) |
Image |
Erect |
Effective diameter of objective |
45mm/1.77in
(EDM: 50mm/1.97in) |
40mm/1.57in
(EDM: 50mm/1.97in) |
Magnification |
33x |
26x |
Field of view |
1°20' |
1°30' |
Resolving power |
2.5" |
3" |
Minimum focusing distance |
1.3m (4.26ft) |
1.6m (5.3ft) |
Reticle illumination |
Provided (3 steps) |
Distance measurement (with Nikon specified prism) |
Under good conditions |
|
with reflector sheet (5 x 5 cm) |
5 to 100m / 16.4 to 328.1ft |
1.6 to 300m / 5.3 to 980ft |
With mini prism |
1100m / 3600ft |
1.6 to 3000m / 5.3 to 9800ft |
With single prism |
2700m / 8900ft |
1.6 to 5000m / 5.3 to 16400ft |
With triple prism |
3600m / 11800ft |
- |
With nine prisms |
4400m / 14400ft |
- |
Under normal conditions |
|
with reflector sheet (5 x 5 cm) |
5 to 100m / 16.4 to 328.1ft |
1.6 to 300m / 5.3 to 980ft |
With mini prism |
950m / 3100ft |
1.6 to 3000m / 5.3 to 9800ft |
With single prism |
2400m / 7900ft |
1.6 to 5000m / 5.3 to 16400ft |
With triple prism |
3100m / 10200ft |
- |
With nine prisms |
3700m / 12100ft |
- |
Reflectorless mode
(white target)*1 |
- |
1.6 to 210m / 5.3 to 680ft |
Readout display |
9999.9999m / 29999.999ft |
Accuracy |
Precise mode |
±(2+2ppm x D)mm |
±(3+2ppm x D)mm
±(3+3ppm x D)mm |
Normal mode |
±(4+2ppm x D)mm |
±(5+10ppm x D)mm |
Least count |
Precise mode |
0.1/1mm, 0.0005ft/0.002ft |
Normal mode |
1/10mm, 0.002/0.02ft |
Measuring intervals (DTM-652)*2 |
Precise mode |
1.0 sec (initial: 1.0 sec) |
- |
Normal mode |
0.5 sec (initial: 1.0 sec) |
- |
Measuring intervals (NPL-632)*2 |
Prism mode (Precise mode) |
- |
1.3 sec (initial: 2.0 sec) |
Prism mode (Normal mode) |
- |
0.5 sec (initial: 1.6 sec) |
Reflectorless (Precise mode) |
- |
1.6 sec (initial: 2.6 sec) |
Reflectorless (Normal mode) |
- |
0.8 sec (initial: 2.0 sec) |
Ambient temperature range |
–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 correction |
-999 to +999 |
Angle measurement |
Reading system |
Photoelectric detection by incremental encoder
(diametrical detection for H/V circles) |
Circular diameter |
79mm |
Minimum increment |
(Degree) |
0.5"/1"/5" |
1"/5"/10" |
(Gon) |
0.1mgon/0.2mgon/1mgon |
0.2mgon/1mgon/2mgon |
(MIL6400) |
0.002mil/0.005mil/0.02mil |
0.005mil/0.02mil/0.05mil |
Accuracy |
1" / 0.3 mgon |
2" / 0.5 mgon |
Dual-axis compensator |
Method |
Liquid electric detection, Dual-axis |
Compensation range |
±3' |
Setting accuracy |
±1" |
Lumi-Guide |
Working range |
100m / 330ft |
Positioning accuracy |
within approx. 6cm /2.4in at 100m/330ft |
Level vials |
Sensitivity of plate level vial |
30"/2mm |
Sensitivity of circular level vial |
10'/2mm |
Optical plummet |
Image |
Erect |
Magnification |
3x |
Field of view |
5° |
Focusing range |
0.5m /1.6ft to |
Display |
Type |
Graphic LCD (128 x 64 dot) on both side |
Point memory |
Raw/coordinates |
10,000 records |
External memory device |
CompactFlash (CF) card, USB memory |
Environmental specification |
IP54 |
Dimensions(approx.) |
166 x 168 x 365mm / 6.5 x 6.6 x 14.4in |
Weight |
Main unit |
5.3 kg / 11.7lbs |
5.3 kg / 11.7lbs |
BC-80 |
0.6 kg / 1.3lbs |
Operating time |
DTM-652 |
Approx. 10 hours
(continuous distance/angle measurement)
Approx. 27 hours
(distance /angle measurement evey 30 seconds)
Approx. 28 hours (angle measurement) |
NPL-632 |
Approx. 6 hours
(continuous distance/angle measurement)
Approx. 12 hours
(distance /angle measurement evey 30 seconds)
Approx. 25 hours (angle measurement) |
battery caarger for BC-80/65 |
Recharging time |
Approx. 3.0 hours for full recharge |
