FG-T3 Optical Theodolite

with horizontal and vertical circle, tribrach with or without optical plummet

A simple optical theodolite that can be used for several different purposes, for instance the exact positioning and alignment of survey markers and poles, or finding angles/directions on a construction site.

Models

  • Article number: 108700:201.22 – 360°, tribrach without optical plummet
  • Article number: 108700:001.22 – 360°, tribrach with optical plummet
  • Article number: 108700:220.22 – 400 gon, tribrach without optical plummet
  • Article number: 108700:210.22 – 400 gon, tribrach with optical plummet

Downloads

Accuracy mean error of a direction, measured in two telescope positions ± 6 mgon (± 20")
Telescope image erect and true-to-side
magnification 20 x
effective aperture 30 mm
shortest target distance 1.2 m
multiple constant 100
view field angle 2° (3.5 m / 100 m)
angle measurement horizontal and vertical circle
circle diameter 74 mm
circle graduation 1 gon (1°)
microscope graduation 0.1 gon (5´)
reading estimation 10 mgon (0.5´)
Bubble level vertical axis level 44" / interval
additional spirit level 20" / interval
Temperature working range -20°C...+50°C
Dimensions 260 x 140 mm
Weight instrument with carrying case 2.1 kg
dimensions 300 x 200 x 160 mm
weight FG-T3 1.8 kg

Flexible - practical

  • measuring angles and directions on construction sites
  • correct alignment of pillars, poles, scaffoldings, slipform elements and prefabricated construction elements
  • simple surveying tasks, profile surveys and leveling works
  • geophysical and geographical exploration tasks
  • all operating elements are easy to find and guarantee quick and simple sight taking
  • the FG-T3 has a rugged body, low weight and a compact design – thus turning it into an invaluable survey instrument on construction sites

Powerful telescope

  • completely rotatable telescope with excellent light transmission, magnification 20x
  • image: erect and true-to-side
  • graticule plate: equipped with double and single reticles for exact focussing on the target, additional reticles to measure distance
  • diopters on both sides of the telescope to simplify targeting

Comfortable and easy angle reading

  • both the horizontal and the vertical circle are equipped with microscopes in order to take exact readings
  • both scales are displayed in a single image
  • circle adjustment device for circular orientation, angle measurement and transmittance of direction

Accessories

  • prism eyecaps for extreme vertical angle measurement
  • tribrach with optical plummet for the exact positioning above reference points

Optional

  • tubular bubble level for simple leveling works
  • attachable compass to determine magnetic azimuth (not part of standard equipment)

Carrying case

  • made of impact-resistant materials
  • attachable compass (circular, full 360 degrees)
  • precision leveling rod equipment (5mm: 100601:002.22 / 10mm: 100601:001.22)
  • small attachable compass (box-shaped housing)
  • tubular bubble level for simple leveling works
  • wall bracket (100357:001.26)
  • mounting support, e.g. for use on top of walls (FG-MAS I: 100363:001.24 / FG-MAS III: 100363:003.26)
  • tripod

A simple optical theodolite that can be used for several different purposes, for instance the exact positioning and alignment of survey markers and poles, or finding angles/directions on a construction site.

Models

  • Article number: 108700:201.22 – 360°, tribrach without optical plummet
  • Article number: 108700:001.22 – 360°, tribrach with optical plummet
  • Article number: 108700:220.22 – 400 gon, tribrach without optical plummet
  • Article number: 108700:210.22 – 400 gon, tribrach with optical plummet

Downloads

Accuracy mean error of a direction, measured in two telescope positions ± 6 mgon (± 20")
Telescope image erect and true-to-side
magnification 20 x
effective aperture 30 mm
shortest target distance 1.2 m
multiple constant 100
view field angle 2° (3.5 m / 100 m)
angle measurement horizontal and vertical circle
circle diameter 74 mm
circle graduation 1 gon (1°)
microscope graduation 0.1 gon (5´)
reading estimation 10 mgon (0.5´)
Bubble level vertical axis level 44" / interval
additional spirit level 20" / interval
Temperature working range -20°C...+50°C
Dimensions 260 x 140 mm
Weight instrument with carrying case 2.1 kg
dimensions 300 x 200 x 160 mm
weight FG-T3 1.8 kg

Flexible - practical

  • measuring angles and directions on construction sites
  • correct alignment of pillars, poles, scaffoldings, slipform elements and prefabricated construction elements
  • simple surveying tasks, profile surveys and leveling works
  • geophysical and geographical exploration tasks
  • all operating elements are easy to find and guarantee quick and simple sight taking
  • the FG-T3 has a rugged body, low weight and a compact design – thus turning it into an invaluable survey instrument on construction sites

Powerful telescope

  • completely rotatable telescope with excellent light transmission, magnification 20x
  • image: erect and true-to-side
  • graticule plate: equipped with double and single reticles for exact focussing on the target, additional reticles to measure distance
  • diopters on both sides of the telescope to simplify targeting

Comfortable and easy angle reading

  • both the horizontal and the vertical circle are equipped with microscopes in order to take exact readings
  • both scales are displayed in a single image
  • circle adjustment device for circular orientation, angle measurement and transmittance of direction

Accessories

  • prism eyecaps for extreme vertical angle measurement
  • tribrach with optical plummet for the exact positioning above reference points

Optional

  • tubular bubble level for simple leveling works
  • attachable compass to determine magnetic azimuth (not part of standard equipment)

Carrying case

  • made of impact-resistant materials
  • attachable compass (circular, full 360 degrees)
  • precision leveling rod equipment (5mm: 100601:002.22 / 10mm: 100601:001.22)
  • small attachable compass (box-shaped housing)
  • tubular bubble level for simple leveling works
  • wall bracket (100357:001.26)
  • mounting support, e.g. for use on top of walls (FG-MAS I: 100363:001.24 / FG-MAS III: 100363:003.26)
  • tripod