Nikon NE 101[Aug. 2, 2009 22:15:27]
One-touch keys for common functions
NE-101 theodolites feature five easy-to-use, one-touch keys: four to perform all common functions and a fifth to control the backlit LCD display and reticle illumination. You can instantly convert vertical angles to percent of grade, reset the horizontal angle to zero and lock the horizontal angle displayed on the LCD while you reposition or repeat a measurement.
Extra light for dark conditions
NE-101 theodolites feature a built-in reticle illuminator and backlit LCD display that allow you to work inside buildings as well as in tunnels, mines and other environments with little or no light. These features also come in handy during low-light conditions outdoors, such as near dawn or dusk.
Works longer on standard AA batteries
Unlike other instruments that require specialized batteries, NE-101 theodolites use six standard AA alkaline batteries. What's more, those batteries can power the NE-101 models for about 48 hours. A three-level bar graph on the LCD screen displays remaining battery power.
Rugged, all-weather reliability
With the NE-101 models, you can count on reliable performance in tough conditions. Nikon theodolites are lightweight, rugged and come with an IP54 rating. That means water can splash on them from any direction with no harmful effects.
Specifications
Telescope
Effective diameter of objective: 1.77 in (45 mm)
Magnification : 30x
Image: Erect
Field of view:1?20' (2.3ft @ 100 ft / 2.3m @ 100 m)
Minimum focusing distance: 2.3 ft ( 0.7 m )
Stadia multiplier constant: 100
Stadia additive constant: 0
Reticle illuminator: provided
Angle Measurement
Reading system: photoelectric incremental encoder
Circle diameter: 3.1 in (79 mm)
Unit of reading: degree / gon / mil
Minimum digital reading? :5/10?, ? mgon, 0.02/0.05 mil
Accuracy (DIN 18723) : 7? /2 mgon
Display / Keypad
Front
Type: dot-matrix LCD ( 20 characters x 2 lines)
Backlight: 1-level illumination
Keypad: 5 buttons
Optical Plummet
Magnification: 2.2x
Field of view: 5?
Focus range: 4.3 ft(1.3 m) fixed
Level Sensitivity
Plate Level: 40? / 2 mm
Circular level: 10? / 2 mm
Leveling Base
Type: detachable
Ambient temperature range: -4 TO 122 ?F (-20 to 50 C)
Dimensions
Instrument: 6.0 x 6.8 x 13.1 in (153.5 x 172 x 334 mm)
Weight
Instrument: 9.8 lbs (4.5 kg)
Carrying case: 5.4 lbs ( 2.5 kg)
Power Supply
Battery type: 1.5V alkaline AA x 6
Continuous operating time ( at 68 ?F / 20C)
With alkaline batteries: 48 hrs
Notes
?1/5", 0.5/1 mgon, 0.005/0.02 mil available as an option.