TOTAL STATION TOPCON GM55

Telescope

Magnification / Resolving power

30x / 2.5″

Others

Length : 171mm (6.7in.), Objective aperture : 45mm (1.8in.) (48mm

(1.9in.) for EDM), Image: Erect, Field of view: 1°30′ (26m/1,000m),

Minimum focus: 1.3m (4.3ft.) Reticle illumination: 5 brightness levels

Angle measurement

Minimum Display

1”/5” (0.0002 / 0.001gon, 0.005 / 0.02mil)

Accuracy (ISO 17123-3:2001)

2″

5″

Dual-axis compensator /

Dual-axis liquid tilt sensor, working range: ±6′

Collimation compensation

On/Off (selectable)

Distance measurement

Laser output

*1

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

Measuring range

Reflectorless

*3

0.3 to 500m (1,640ft.)

(under average

conditions

*2

)

Reflective sheet

*4*5

RS90N-K: 1.3 to 500m (4.3 to 1,640ft.),

RS50N-K: 1.3 to 300m (4.3 to 980ft.),

RS10N-K: 1.3 to 100m (4.3 to 320ft.)

Mini prism

1.3 to 500m (4.3 to 1,640ft.)

One prism

1.3 to 4,000m (4.3 to 13,320ft)

Minimum Display

Fine / Rapid : 0.0001m (0.001ft. / 1/16 in.) / 0.001m (0.005ft. / 1/8 in.) (selectable)

Tracking / Road : 0.001m (0.005ft. / 1/8 in.) / 0.01m (0.02ft. / 1/2 in.) (selectable)

Accuracy

*2

Reflectorless

*3

(2 + 2ppm x D) mm

*6

(ISO 17123-4:2001)

Reflective sheet

*4*5

(2 + 2ppm x D) mm

(D=measuring distance in mm)

Prism

*7

(1.5 + 2ppm x D) mm

Measuring time

*8

Fine

0.9s (initial 1.5s)

Rapid

0.6s (initial 1.3s)

Tracking

0.4s (initial 1.3