Topcon-GM-50K Series

GM-50K Series Geodetic Measurement Station

Topcon GM-50 Series Total Station Main View

High Quality, High Return!

Construction and Survey Application Software
Fast & Accurate & Powerful Measuring Distance Feature
500m Long Range Reflectoress Measurement
Rugged & Waterproof Design
Reliable Large Volume Internal Memory

Fast and Powerful Reflectorless EDM

Fast and accurate pinpointing with phase shift technology.
Fast distance measurement of 0.9s regardless of object.
Minimum reflectorless measuring distance – just 30cm.
Improved collimation with super-bright pointer.
Smaller EDM beam spot size for minimal distance measuring error.
Dependable measuring even at shallow incidence angles.
Ensures accurate reflective sheet distance measurement.

Japan Quality Products

We perform the tough environmental tests to ensure long-term operation even under the rough site environments. GM-K Series total stations are thoroughly inspected with dust-proof and water-proof test chambers. In addition, the various tests against vibration, drop, temperature, and humidity were successfully passed to achieve the best environmental spec. Also, the measuring distance accuracy test on base line and the instrument leveling and angle accuracy test and adjustment by collimator system ensure your satisfaction on GM-K Series product quality.

GM-50k Specification

Model

Model: GM-52K

GM-55K

Telescope

Magnification / Resolving power: 30x / 2.5″
Length: 171mm
Objective aperture: 45mm (48mm for EDM)
Image: Erect
Field of view: 1.30′ (26m/1,000m)
Minimum focus: 1.3m
Reticle illumination: 5 brightness levels

Angle measurement

Minimum display: 1″/5″
Accuracy: GM-52K:
2″

GM-55K:
5″
Dual-axis compensator: Dual axis liquid tilt sensor, working range: ±6′
Collimation compensation: On / Off (selectable)

Distance measurement

Laser output

Reflectorless mode: Class 3R / Prism/sheet mode: Class 1

Measuring range (under average condition)

Reflectorless *1*2

0.3 to 800m

Reflective sheet *3*4

RS50N-K: 1.3 to 500m,
RS90N-K: 1.3 to 300m,
RS50K-K: 1.3 to 50m

Mini prism

1.3 to 500m

One prism

1.3 to 4,000m

Minimum Display

Fine/Coarse:

0.0001m / 0.001m (Selectable)

Tracking / Road:

0.01m

Accuracy *5*

Reflectorless *2*

(2 + 2ppm x D) mm

Reflective sheet *3*4

(2 + 2ppm x D) mm

Prism

(1.5 + 2ppm x D) mm

Measuring time (Dm=Dist. Measuring)

Fine

0.9s (initial 1.5s)

Coarse

0.6s (initial 1.2s)

Tracking

0.4s (initial 1.3s)

OS, Interface and Data management

Operating system

Linux

Display / Keyboard

Graphic LCD, 192 x 80 dots, Backlight: on/off (Selectable) / Alphanumeric keyboard / 28 keys with backlight

Control panel location

GM-52K:
On both faces

GM-55K:
On one face

Data storage

Internal memory

Approx. 50,000 points

Plug-in memory device

USB flash memory (max. 32GB)

Interface

Serial RS-232C, USB2.0 (Type A for USB flash memory)

General

Laser pointer

Coaxial red laser using EDM beam

Levels

Graphic

±6′ (Displayed)

Circular level

10′/2mm

Optical Plummet

Magnification: 3x, Minimum focus: 0.3m from tribrach bottom (typically standard on GM-52K)

Laser Plummet

Red laser diode (635nm±10nm), Beam accuracy: ≤1.0mm at 1.3m, Class 2 laser product (typically standard on GM-55K)

Dust and water protection / Operating temperature

IP66 (IEC 60529:2001) / -20 to +60°C

Size with handle

GM-52K:
183(W) x 181(D) x 348(H)mm

GM-55K:
183(W) x 174(D) x 348(H)mm

Weight with battery & tribrach

5.2kg

Instrument height

192.5mm from tribrach mounting surface

Centering screw