Jual Digital Theodolite Sokkia DT-620
.jpg)
The World’s Longest Operating Time • SOKKIA’s innovative technology achieves the world’s longest operating time* – 220 hours with the 7”-DT620 model. • The DT520A operates up to 200 hours - the longest among 5” models* . • At 7 hours/day, the DT620/DT520A can operate for more than 31/28 respective days without changing batteries. * As of January 1, 2009 Advanced Angle Measurement System • The DT series theodolites are equipped with market-proven absolute encoders. Advanced coding and digital processing technologies provide long-term reliability in any work-site conditions. • 2”-DT220 incorporates IACS (Independent Angle Calibration System) to further enhance measurement reliability. • 5”-DT520A and 7”-DT620 employ newly developed IACS-SD* technology that provides high accuracy with the power-effi cient single-detection system. * IACS with Single Detection Quick, User-friendly Operation • Start measurement as soon as you turn on the power without the need for 0-indexing. • Easy-to-read LCD display has 20% larger digits than former models. • The MENU key facilitates all instrument settings including angle units, resolutions, measurement modes, tilt compensation and so on. Dual-axis Compensation (DT220 • DT520) • DT220/DT520 models automatically compensate both Vertical and Horizontal angles by monitoring instrument tilt in X & Y directions. Right-angle Beeps • Beeps at each of the four right-angle directions to assist squaring. Industry's Highest* Dust- and Water-Protection • All models comply with the rigorous IP66 standard, offering superior protection against powder-type dust and sudden showers. * Among existing electronic theodolites, as of January 1, 2009 RS-232C Port • Measurement data can be output to external devices via RS-232C data port* . * Except DT620 model
Telescope Length 165 mm (6.5 in.) 160 mm (6.3 in.) Objective aperture 45 mm (1.8 in.) 35 mm (1.4 in.) Magnifi cation 30 x 26 x Image Erect Resolving power 3" 3.5" Field of view 1°30' (26 m/1,000 m) Minimum focus 0.9 m (3.0 ft.) from telescope center Stadia Multiplication constant: 100, Additive constant: 0 Reticle illumination Built-in. Bright / Dim, selectable - Angle measurement Absolute rotary encoder scanning Display unit Degree / Gon / Mil, selectable Display resolutions (selectable) 1" / 5", 0.2 / 1 mgon, 0.005 / 0.02 mil 5" / 10" 1 / 2 mgon 0.02 / 0.05 mil Accuracy (ISO 17123-3:2001) 2" / 0.6 mgon 0.01 mil 5" / 1.5 mgon / 0.025 mil 7" / 2.2 mgon 0.035 mil Measuring mode H Clockwise, Counterclockwise, selectable. Hold, 0-set, available V Zenith 0 / Horizontal 0 / Horizontal 0±, Slope in %/‰, selectable Automatic dual-axis compensator Dual-axis liquid tilt sensor Working range ±3'(±55mgon) - General Display LCD, 8 digits x 2 lines with backlight Keyboard 6 keys Control panel location On both faces On single face Interface RS-232C, baud rate 1,200 bps - Right-angle beeps Provided Sensitivity of levels Plate level 30"/2 mm 40"/2 mm 60"/2 mm Circular level 10'/2 mm Optical plummet Image: Erect, Magnifi cation:3 x, Minimum focus:0.3 m (1 ft.) Tribrach Detachable Fixed Operating temperature -20 to +50°C (-4 to+122°F) Dust and water protection IP66 (IEC 60529:2001) Instrument height 236 mm (9.3 in.) from tribrach bottom Size with handle W165 x D165 x H341 mm (W6.5 x D6.5 x H13.4 in.) Weight with handle 4.4 kg (9.6 lb.) 4.3 kg (9.5 lb.) 4.2 kg (9.3 lb.) 3.9 kg (8.6 lb.) Power supply Battery LR14 (C) batteries x 2 Operating time w/alkaline batteries at 25°C (77°F) Approx. 130 hours Approx. 200 hours Approx. 220 hours Automatic power cut off 5/10/15/30 minutes after operation / none, selectable