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|---|
| NPL-632 | DTM-652 |
|---|
| TELESCOPE | | |
| Tube length: | 6.02 in (153 mm) | 6.22 in (158 mm) |
| Image: | Erect | Erect |
| Effective diameter of objective: | 1.57 in (40 mm) EDM: 1.97 in (50 mm) | 1.77 in (45 mm) EDM: 1.97 in (50 mm) |
| Magnification: | 26X (16X/32X w/ optional eyepieces) | 33X (21X/41X w/ optional eyepieces) |
| Field of view: | 1°30'
2.6 ft @ 100 ft
(2.6 m @ 100 m) | 1°20'
2.3 ft @ 100 ft
(2.3 m @ 100 m) |
| Resolving power: | 3" | 2.5" |
| Minimum focusing distance: | 5.3 ft (1.6 m) | 4.26 ft (1.3 m) |
| Reticle illumination: | 3-level variable | 3-level variable |
| DISTANCE MEASUREMENT | Range with Nikon-specified prisms | Range with Nikon-specified prisms |
| Under good conditions | No haze with visibility over 25 miles (40 km) | No haze with visibility over 25 miles (40 km) |
| With reflector sheet: | 5.3 to 980 ft (1.6 to 300 m) | 16.4 to 328.1 ft (5 to 100 m) |
| With mini prism: | 5.3 to 9800 ft (1.6 to 3000 m) | 3600 ft (1100 m) |
| With single prism: | 5.3 to 16400 ft (1.6 to 5000 m) | 8900 ft (2700 m) |
| With triple prism: | — | 11800 ft (3600 m) |
| With nine prisms: | — | 14400 ft (4400 m) |
| Under normal conditions | Ordinary haze with visibility about 12.5 miles (20 km) | Ordinary haze with visibility about 12.5 miles (20 km) |
| With reflector sheet: | 5.3 to 980 ft (1.6 to 300 m) | 16.4 to 328.1 ft (5 to 100 m) |
| With mini prism: | 5.3 to 9800 ft (1.6 to 3000 m) | 3100 ft (950 m) |
| With single prism: | 5.3 to 16400 ft (1.6 to 5000 m) | 7900 ft (2400 m) |
| With triple prism: | — | 10200 ft (3100 m) |
| With nine prisms: | — | 12100 ft (3700 m) |
| Reflectorless mode (white target)¹: | 5.3 to 680 ft (1.6 to 210 m) | — |
| ACCURACY | | |
| Prism/Precise mode: | ±(3+2 ppm x D) mm | ±(2+2 ppm x D) mm |
| -4 to 14°F (-20 to -10C): | ±(3+3 ppm x D) mm | ±(4+2 ppm x D) mm |
| 104 to 122°F (40 to 50C): | ±(3+3 ppm x D) mm | ±(4+2 ppm x D) mm |
| Reflectorless/Precise mode: | ±(3+2 ppm x D) mm | — |
| -4 to 14°F (-20 to -10C): | ±(3+3 ppm x D) mm | — |
| 104 to 122°F (40 to 50C): | ±(3+3 ppm x D) mm | — |
| Readout display: | 29999.999 ft (9999.9999 m) | 29999.999 ft (9999.9999 m) |
| Prism offset: | -999 to 999 mm | -999 to 999 mm |
| NPL-632 | DTM-652 |
|---|
| LEAST COUNT | | |
| Precise mode: | 0.0005 ft/0.002 ft
(0.1 mm/1 mm) selectable | 0.0005 ft/0.002 ft
(0.1 mm/1 mm) selectable |
| Normal mode: | 0.002 ft/0.02 ft
(1 mm/10 mm) selectable | 0.002 ft/0.02 ft
(1 mm/10 mm) selectable |
| MEASURING INTERVALS² | | |
| Prism/Precise mode: | 1.3 sec (initial 2.0 sec) | 1.0 sec (initial 1.0 sec) |
| Prism/Normal mode: | 0.5 sec. (initial 1.6 sec.) | 0.5 sec. (initial 1.0 sec.) |
| Reflectorless/Precise mode: | 1.6 sec (initial 2.6 sec) | — |
| Reflectorless/Normal mode: | 0.8 sec. (initial 2.0 sec.) | — |
| ANGLE MEASUREMENT | | |
| Reading system: | Photoelectric detection by incremental encoder | Photoelectric detection by incremental encoder |
| Circle diameter: | H 3.1 in (79 mm) | H 3.1 in (79 mm) |
| Horizontal angle: | Diametrical | Diametrical |
| Vertical angle: | Diametrical | Diametrical |
| Minimum increment | | |
| Degree: | 1/5/10" | .5/1/5" |
| Gon: | 0.2/1/2 mgon | 0.1/.2/1 mgon |
| MIL6400: | 0.005/0.02/0.05 mil | 0.002/0.005/0.02 mil |
| DIN 18723 accuracy: | 2"/.5 mgon | 1"/0.3 mgon |
| NPL-632 | DTM-652 |
|---|
| AMBIENT TEMPERATURE RANGE | -4 TO 122 °F (-20 to 50 C) | -4 TO 122 °F (-20 to 50 C) |
| ENVIRONMENTAL SPECIFICATIONS | IP54 | IP54 |
| ATMOSPHERIC CORRECTION | | |
| Temperature range: | -40 to 140 °F (-40 to 60 C) | -40 to 140 °F (-40 to 60 C) |
| Barometric pressure: | 15.8 to 39.3" inHg (400 to 999 mmHg/533 to 1332 hPa) | 15.8 to 39.3" inHg (400 to 999 mmHg/533 to 1332 hPa) |
| NPL-632 | DTM-652 |
|---|
| TILT SENSOR | | |
| Type: | Dual-axis | Dual-axis |
| Method: | Liquid-electric detection | Liquid-electric detection |
| Compensation range: | ±3' | ±3' |
| Setting accuracy: | ±1"/±0.2 mgon | ±1"/±0.2 mgon |
| LUMI-GUIDE | | |
| Light source: | LED | LED |
| Visible range: | 330 ft (100 m) | 330 ft (100 m) |
| Positioning accuracy: | ~2.4 in @ 330 ft (6 cm @ 100 m) | ~2.4 in @ 330 ft (6 cm @ 100 m) |
| Beam spread: | ~1.5°/8.5 ft @ 330 ft (2.6 m @ 100 m) | ~1.5°/8.5 ft @ 330 ft (2.6 m @ 100 m) |
| LEVEL VIAL SENSITIVITY | | |
| Plate level vial: | 30"/2 mm | 30"/2 mm |
| Circular level vial: | 10'/2 mm | 10'/2 mm |
| NPL-632 | DTM-652 |
|---|
| OPTICAL PLUMMET | | |
| Image: | Erect | Erect |
| Magnification: | 3x | 3x |
| Focusing range: | 1.6 ft (0.5 m) to Infinity | 1.6 ft (0.5 m) to Infinity |
| Field of view: | 5° | 5° |
| DISPLAY/KEYPAD | | |
| Front side | | |
| Type: | Graphic LCD (128 x 64 pixel) | Graphic LCD (128 x 64 pixel) |
| Backlight: | 1-level illumination | 1-level illumination |
| Keypad: | 25 keys | 25 keys |
| Rear side | | |
| Type: | Graphic LCD (128 x 64 pixel) | Graphic LCD (128 x 64 pixel) |
| Backlight: | 1-level illumination | 1-level illumination |
| Keypad: | 25 keys | 25 keys |
| COMMUNICATIONS PORT(S) | | |
| Type: | RS-232C (1x), USB (2x) | RS-232C (1x), USB (1x) |
| Baud rate: | 38,400 max., — | 38,400 max., — |
| NPL-632 | DTM-652 |
|---|
| EXTERNAL MEMORY PORT(S) | | |
| Type: | CompactFlash Type I/II (1x), USB Host (1x) | CompactFlash Type I/II (1x), USB Host (1x) |
| POINT MEMORY | | |
| Raw/coordinates: | 10,000 records | 10,000 records |
| DIMENSIONS (W x D x H) | 6.5 X 6.6 X 14.4 IN (166 X 168 X 365 mm) | 6.5 X 6.6 X 14.4 IN (166 X 168 X 365 mm) |
| NPL-632 | DTM-652 |
|---|
| WEIGHT | | |
| Main unit (w/o battery): | 11.2 lbs (5.1 kg) | 11.2 lbs (5.1 kg) |
| BC-80 clip-on battery: | 1.3 lbs (0.6 kg) | 1.3 lbs (0.6 kg) |
| Battery charger: | .66 lbs (0.3 kg) | .66 lbs (0.3 kg) |
| Carrying case: | 8.8 lbs (4.0 kg) | 8.8 lbs (4.0 kg) |
| POWER SUPPLY | | |
| Clip-on BC-80 NiMH battery | | |
| Output voltage: | 7.2V DC | 7.2V DC |
| Operating time | | |
| Cont. distance/angle measurement: | ~6 hours | ~10 hours |
| Distance/angle measurement every 30 seconds: | ~12 hours | ~27 hours |
| Angle measurement: | ~25 hours | ~28 hours |
| Universal charger | | |
| Input voltage: | 115V - 220V AC | 115V - 220V AC |
| Recharging time: | ~3 hrs for full recharge | ~3 hrs for full recharge |
| NOTES |
| ¹White objects with high reflectivity. Measuring distance may vary depending on targets and measuring conditions. |
| ²Measuring time may vary depending on measuring distance and conditions. |
