Nikon NPL 352 Spec :
The NPL-302 Series include excellent measurement performance and extreme long battery life. The instruments also include powerful onboard software that remains very easy-to-use and easy-to-learn. With the introduction of a graphical LCD display the menu selections and data entry has become even simpler, resulting in increased productivity in the field. The Nikon Pulse Laser Stations are equipped with the unique coaxial focusing system reflectorless EDM. Otherwise inaccessible points can now be surveyed reliable and accurate due to Nikon's unique reflectorless EDM technology. This system focuses the laser on the object that is to be measured. The focusing of the laser beam on the object assures greater accuracy, especially when the measurement beam is oblique to the target surface.
Feature ;
The focusing system also automatically reduces the risk of erroneous measurements caused by passing object such as e.g. cars, persons or the leaves of trees or bushes that interrupt the line of sight. Through this unique technology the NPL-302 Series pulse laser station offers superb reliability in reflectorless measurements. The size of the laser beam can be examined as the diameter of the laser beam is etched into the reticle.
- Measurement performance
- Superb Nikon optics
- Large internal memory
- Powerful and practical new on-board programs
- Extreme long battery life
- Waterproof construction
| Model | NPL-362, NPL-352, NPL-332 |
| Telescope | |
| Tube Length | 153mm/6.02 in. |
| Magnification | 26x (16x/32x with optional eyepieces) |
| Effective diameter of objective | 40mm/1.57 in. (EDM: 50mm/1.97 in.) |
| Field of view | 1°30' |
| Resolving power | 3" |
| Minimum focusing distance | 1.6m/5.3 ft. |
| Distance measurement | |
| Reflectorless mode (white target)*1 | 1.6 to 210m (5.3 to 682 ft.) |
| Range with Nikon specified prisms | |
| Normal conditions | (Ordinary haze, visibility approx. 20km/12.5 miles) |
| With reflector sheet (5 x 5cm) | 1.6 to 300m (5.3 to 980 ft.) |
| With mini prism | 1.6 to 3,000m (5.3 to 9,840 ft.). |
| With single prism | 1.6 to 5,000m (5.3 to 16,400 ft.). |
| Good conditions | (No haze, visibility of over 40km/25 miles) |
| With reflector sheet (5 x 5cm) | 1.6 to 300m (5.3 to 980 ft.) |
| With mini prism | 1.6 to 3,000m (5.3 to 9,840 ft.). |
| With single prism | 1.6 to 5,000m (5.3 to 16,400 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) |
| Accuracy (Reflectorless/Precise) | ±(5+2ppm x D)mm ±(5+3ppm x D)mm (–20°C to –10°C, +40°C to +50°C) |
| Measuring interval*2 | |
| Prism mode | |
| Precise mode | 1.3 sec. (initial 2.0 sec.) |
| Normal mode | 0.5 sec. (initial 1.6 sec.) |
| Reflectorless mode | |
| Precise mode | 1.6 sec. (initial 2.6 sec.) |
| Normal mode | 0.8 sec. (initial 2.0 sec.) |
| Least count | |
| Precise mode | 1mm/0.002 ft. |
| Normal mode | 10mm/0.02 ft. |
| 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 | –999 to 999 |
| Angle measurement | |
| Reading system | Photoelectric detection by incremental encoder |
| Horizontal angle | Diametrical(NPL-362/352), Single(NPL-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:NPL-362) |
| Tilt sensor | |
| Type | Dual-axis(NPL-362/352), Single-axis(NPL-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(NPL-362/352), Single side(NPL-332) |
| Point memory | 10,000 records |
| Dimensions (W x D x H) | 168 x 173 x 347mm/6.6 x 6.8 x 13.7 in. |
| Weight (approx.) | |
| Main unit (with battery) | 5.5kg/12.1 lbs.(NPL-362/352), 5.3kg/11.7 lbs.(NPL-332) |
| Battery | 0.4kg/0.9 lbs. |
| Carrying case | 3.2kg/7.1 lbs |
| On-board Ni-MH battery BC-65 | |
| Operation time | |
| Continuous distance/angle measurement | Approx. 6.5 hours (Reflectorless mode: 7.0 hours)*3 |
| Distance/angle measurement every 30 seconds | Approx. 15 hours (Reflectorless mode: 16 hours) |
| Angle measurement | Approx. 27 hours (Prism and Reflectorless modes) |
| Battery charger for BC-80/65 | Approx. 3.0 hours for full recharge |
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