Specifications

NTS-330R

Telescope

Image                                            Erect

Magnification                                 ３０×

Effective aperture                              45ｍｍ(EDM：47ｍｍ)

Resolving power                              3″

Field of view                                 １°３０′

Minimum focus                                    １.3ｍ

Stadia ratio                                   １００

Sight distance precision                          ≤０．４％Ｄ

Tube length                               152ｍｍ

Angle Measurement 

Measuring method                        absolute encode

Dia of circle (vertical, horizontal)                         79ｍｍ

Minimum reading                       １″／５″Selectable

Detection method                         Horizontal: Dual

                                                                 Vertical: Dual

Measuring unit                           360°／400gon／6400mil       Selectable

Vertical angle０°                         Zenith０°／Horizontal０° Selectable

Accuracy                             NTS332R   2″

                                                                 NTS335R  5″

                                                                 Distance Measurement

Single prism  (under fair weather condition)  3000m

Triple prism                             5000m

Reflectorless mode                        300m

Display                                  Max：999999.999ｍMin：１ｍｍ

Unit                                   m

Accuracy                               prism mode：±(2ｍｍ＋2ppm·D)

                                       Reflectorless mode: ±(5ｍｍ＋3ppm·D)

Measuring time                          Fine single shot:2s，Tracking:0.7s

Measurement system                      Basic frequence: 60MHZ

Meteorologic Correction                   Manual input, Auto correction

Atmospheric refraction and earth curvature correction

                                                      Manual input, Auto correction, K=0.14/0.2

Reflection prism correction                 Manual input, Auto correction

Vial  

Plate vial                               30″／2ｍｍ

Circular vial                             8′／2ｍｍ

Vertical Compensator   

System                                 opto-electrical, dual axis

Compensation range                      ±4′

Resolving power                         １″

Optical Plummet  

Image                                  Erect

Magnification                            3×

Focusing range                           0.3ｍ～∝

Field of view                           ５°

Display   

Type                                   LCD, Six lines, digital

Data Communication

Port                                  ＲＳ－２３２Ｃ,USB

On-board Battery   

Power resource                           Rechargeable Ni-H battery    NB-28

Voltage                                 DC６Ｖ

Continuous operation time                  8 hrs

Operation Environment   

Operating temperature                    －20°～＋45℃

Size & weight   

Dimension                              160×150×340ｍｍ

Weight                                 5.4ｋｇ