GTS-233N

GTS-235N

GTS-236N

GTS-239N

Telescope

Length

150mm

Objective lens Dia

45mm (EDM 50mm)

Magnification

30x

Image

Erect

Field of View

1^o30'

Resolving Power

2.5”

Min. Focus Distance

1.3m (4.9 ft)

Distance Measurement

Condition 1

1 prism

3 prisms

9 prisms

3,000m (9,900 ft)

4,000m (13,200 ft)

5, 000m(16,400 ft)

2,000m (6,600 ft)

2,700m (8,900 ft)

3,400m (11,200 ft)

Condition 2

1 prism

3 prisms

9 prisms

3,500ml(11,500 ft.)

4,700m (15,400 ft)

5,800 (19,000 ft)

2,300m (7,500 ft)

3,100m (10,200 ft)

4,000m (13,200 ft)

Conditions1: Slight haze with visibility about 20km (12.5 miles) moderate sunlight with light heat shimmer

Conditions2: No haze with visibility about 40 km (25 miles), overcast with no heat shimmer

Accuracy

+-(2mm + 2ppm x D) m.s.e

+-(3mm+3ppmxD) m.s.e.

D: Measuring distance (mm)

Least count in measurement

Fine measurement Mode

Coarse Measurement Mode

1mm (0.005ft)/0.2mm(0.001 ft)

10mm (0.02 ft)/1mm (0.005 ft )

10 mm(0.02ft)

Measurement Display

12 digits: max. display 99999999.9999

Measuring Time

Fine Measurement Mode

Coarse Measurement Mode

Tracking Measurement Mode

1mm: 1.2 sec.(Initial 4 sec.)

0.2mm: 2.8 sec( Initial 5 sec)

0.7 sec (Initial 5 sec)

0.4 sec (Initial 3 sec)

(The initial time will be different by a condition)

Atmospheric Correction Range

-999.9ppm to + 999.9ppm, in 0.1 ppm increments

-99.9 mm to +99.9mm, in 0.1mm increments

Angle Measurement

Method

Absolute Reading

Detecting System

H: 2 sides V: 1 side

H: 1 side V: 1 side

Minimum reading

1”/5”

(0.2/1mgon)

5”/10”

(1/2mgon)

Accuracy

3” (1mgon)

5” (1.5mgon)

6” (1.8mgon)

9” (2.7mgon)

Measuring Time

Less than 0.3 sec

Diameter of Circle

71mm

Display

Display Unit

Graphics LCD 160 x 64 dots with backlight

2 Sides

1 Side

Keyboard

Alpha-Numeric Key

Tilt Correction (Automatic Index)

Tilt Sensor

Dual axis

Single axis

Method

Liquid type

Compensating Range

+-3'

Correction Unit

1” (0.1mgon)