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NTDM502 Total Station is built with dual axis compensation, ensuring accurate measurement. Advanced EDM shoots distance with 2mm+ 2ppm@ D accuracy. On-board intelligence includes MLM, Stakeout, REM, Area calculation and more. RS-232C data port works with data collectors and PC, which makes data transfer quick and easy. Laser Plummet ( NTDM502L) ensures convenient setups. Whether your job requires taking angles or distance, or conducting stakeout and complicated layout functions, NTDM502 is your solid tool to achieve higher efficiency.

Sepcifications:
Telescope: Image: Erect. Magnification: 30× . Objective aperture ( EDM) : $ 45mm. Resolving power: 3.5" . Field of view : 1° 20’ . Minimum focus: 3 ft. Angle Measurement: Detecting system: photoelectric incremental encoder. Angle unit : degree/ gon/ mil, selectable. Minimum display: 1" / 5" / 10" , selectable; 0.0001° / 0.0005° / 0.001° , selectable;
0.2mgon/ 1mgon/ 2mgon, selectable. Detecting mode: Horizontal: double, Vertical: single. Accuracy: 53 ( DIN18723) . Distance Measurement: Distance uni: m/ ft, selectable. Measurement range ( good condition) : Single prism 6000 ft. Mini-reading: Fine mode: 1mm( 0.01ft) . Tracking mode: 10mm ( 0.1ft) . Accuracy: ± ( 2mm 2ppm@ D) .
Measuring time: Fine mode: 2 sec. Tracking mode: 2 sec. Temperature unit: ° C/ ° F, selectable. Pressure unit: hPa/ mmHg/ inchHg, selectable. Temperature input range: -30° C to + 60° C ( 1° C steps) . Pressure input range: 510hPa to 1066hPa( 1hPa steps) . Prism constant condition: -99.9mm ~ + 99.9mm. Refraction and earth curvature correction: OFF/ 0.14/ 0.2, selectable. Reflecting prism constant correction: -99.9mm to + 99.9mm. Level vial sensitivity: Plate level: 30" / 2mm. Circular level: 8’ / 2mm. Compensation: System: Liquid dual axis. Range: ± 3’ .
Resolving power : 1" . Optical plummet: Accuracy: ± 0.8mm/ 1.5m. Image: Erect. Magnification: 3× . Focusing range: 0.5m ^  . Field of view: 4° . Laser plummet ( NTDM502L) : Accuracy: ± 0.8mm/ 1.5m. Laser class: Class 2/ I EC60825-1. Focus range: 0.5M^  . Laser wavelength: 635nm. Display: LCD: 8 lines× 24 characters. Illumination: Yes. Internal memory: Internal memory: 16000 points. Data communication: I/ O: RS-232C. Power: Battery: Ni-MH Rechargeable battery. Voltage: 7.2V DC. Continuous operation time: ~ 8 hrs Distance & angle, ~ 20 hrs Angle only. Chargers: 100V to 240V 50/ 60Hz. Charging time: ( at + 20 ) Approx. 4 hours. Others: Working temperature: -20° ^ + 50 . Dimension: 220× 184× 360mm ( W× D× H) . Weight: 14 lb. Waterproof: IP54 ( IEC60529) .