ES-50 Series

May 3, 2016 In Coventional Construction

Small Beginnings, Big Results

  • Fast and powerful EDM
  • Angle accuracy 2 and 5 sec
  • 15 hour battery life
  • Rugged, waterproof design
  • Dual axis compensation
  • Laser pointer
  • RS232 connector

Historical evolution meets modern technology

es-50_topconA newly designed, rugged, and waterproof optical total station with the convenience of also measuring reflectorless to any surface, the ES-50 incorporates all time-honored expectations and more.

Available in either a 2 or 5 arc second accuracy, the ES-50 is ideal for land surveying, topography, construction layout, foundation and exterior job sites, as well as as-built projects.

Proceed as planned knowing that each compact and rechargeable battery delivers up to 15 hours or projects site productivity. Proven dual axis compensators get it right the first time, while a tight waterproof design let’s you rest easy during unexpected weather changes.

For Interior or exterior construction layout projects, a bright laser pointer vividly shines to precisely denote where your next digital design will be-visualize and check for problems before they become problems.

With an eye on safety, the unit has a smaller beam width then other non-prism instruments in this class, resulting in non-prism measurements out to 350 m.


Model ES-52 ES-55
Magnification/Resolving Power 30x/2.5″
Others Length : 171 mm (6.7in), Objective aperture : 45 mm (1.8 in.) (48 mm(1.9 in.) for EDM), Image : Erect, Field of View : 1°30′ (26m/1,000m), Minimum focus : 1.3m (4.3 ft.), Reticle illumination : 5 brightness levels
Angle measurement
Display Resolution 1″/5″ (0.0002/0.001 gon, 0.005/0.02mil)
Accuracy (ISO 17123-3:2001) 2″ 5″
Dual-axis compensator/Collimation compensation Dual-axis liquid titl sensor, working range : ±6′ (±111mgon)/Collimation compensation available
Distance measurement
Laser output Reflectorless mode : Class 3R/Prism/sheet mode : Class 1
Measuring range                                 Reflectorless 0.3 to 350m (1.0 to 1,150ft.)
 Reflective sheet RS90N-K : 1.3 to 500m (4.3 to 1,640ft)
RS550N-K : 1.3 to 300m (4.3 to 980ft.), RS10N-K : 1.3 to 100 m (4.3 to 320ft.)
Mini prism Prism-5 : 1,3 to 500m (1,640ft.)
One prism Prism-2 : 1.3 to 4,000m (4.3 to 13,120 ft.)
Display Resolution Fine/Rapid : 0.001m/0.01ft./1/8in. Tracking : 0.01m/0.1ft./1/2in.
Accuracy                                               Reflectorless (3+2ppmxD)mm
 (ISO 17123-3:2001)                      Reflective Sheet (3+2ppmxD)mm
(D=measuring distance in mm)                AC/CP prism (2+2ppmxD)mm
Measuring time Fine : 0.9s (initial 1.7s), Rapid : 0.7s (initial 1.4s), Tracking : 0.3s (initial 1.4s)
Interface and Data management
Display/Keyboard Graphic LCD, 192×80 dots, backlight, contrast adjustment/Alphanumeric keyboard/25 keys with backlight
Control panel location On both faces On ane face
Trigger key On right instrument support
Data storage                                 Internal memory Approx. 5,000 points
Interface Serial RS-232C
Laser pointer Coaxial red laser using EDM
Levels                                                              Graphic 6′ (Inner Circle)
Circular level 10′/2mm
Optical plummet Magnification: 3x, Minimum focus : 0.3m (11.8in.) from tribrach bottom
Dust and water protection IP66 (IEC 60529:2001)
Operating Temperature -20 to +60°C (-4 to +140°F)
Size with handle Control panel on both faces : W177xD181xH348mm (W7.0xD7.1xH13.7in.)
Control panel on one face : W177xD174xH348mm (W7.0xD6.9xHI3.7in.)
Weight with battery & tribrach Approx. 5.4 kg (11,9 lb.)
Power supply
Battery                      BDC46C detacheable battery Li-ion rechargeable battery
Operating time (20°C)                                           BDC46C Approx. 15 hours (single distance measurement every 30 seconds)

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