Total Station Topcon GM-55 Reflectorless

General

Weight

11.3 lbs (5.13 kg)

Dimensions

7.2" W x 7.13" D x 13.7" H (GM-52); 7.2" W x 6.85" D x 13.7" H (GM-55)

Warranty

1-year

Protection Class

IP66 dustproof and water jet resistant

Tripod Thread

5/8-11

Auto Shut Off

No

Internal Memory

50,000 points

Software

On-board

Tribrach

No

Auto-Tracking Speed

No

Guide Light

Yes

Angle Measurement

Measuring Method/Reading System

No

Detection Method

No

Minimum Reading

No

Accuracy

5 second (1023562-02, 1023562-04); 5 second (1023562-01, 1023562-03)

Diameter of Circle

No

Display Method

No

Distance Measurement

Unit of Measure (distance display)

m/ft/in

EDM Accuracy (Precision)

±(2 + 2ppm x D) mm (reflectorless); (2 + 2ppm x D) mm (reflective sheet); (1.5 + 2ppm x D) mm (single prism)

Minimum Reading

Up to 1,640 ft. (500 m)

Tilt Sensor/Compensator

Range

±6 degrees

Type

Dual-axis liquid tilt sensor

Method

No

Setting Accuracy

No

Battery/Power

Power Source

Rechargeable Li-ion batteries, BDC46C

Battery Life

Up to 14 hours

Battery Life Alert

Yes

Voltage

7.2-volt

Optical Plummet

Image

N/A

Magnification

3x

Field of View

N/A

Focus Range

19.7 inches (0.5 m) from tribrach bottom

Level

Plate/Tubular Bubble Vial

N/A

Circular Bubble Vial

10' /2mm

Electronic Level

N/A

Telescope

Length of Tube

6.7 in (170 mm)

Image

Erect

Diameter of Objective Lens (Aperture)

1.8 in (48 mm EDM)

Magnification

30x

Field of View

1°30’

Resolving Power

2.5"

Minimum Focus Distance

4.3 ft. (1.3 m)

Ratio of Stadia Lines

No

Sight Distance Precision/Focus Range

No

Reticle Illumination

5 brightness levels

Reflectorless

Yes

Quick Sights (Rough Sights)

No

Display and Keypad

Type

LCD display

Sides

Single (1023562-01, 1023562-03); Dual (1023562-02, 1023562-04)

Keys

Alphanumeric

Touchscreen

N/A

Backlight

Yes

Pixels

192 x 80 pixels

Temperature

Operating

-4 ºF to 140 ºF (-20 ºC to 60 ºC)

Storage

N/A

Applications

Surveying and Construction

Yes

Mapping and GIS (geographic information systems)

Yes

Utilities

Yes

Environment Studies

Yes

Geomarking

Yes

Archaeology

Yes

Accident Reconstruction

Yes

Measurement Range (under fair weather conditions)

Single Prism

Up to 13,320 ft. (4,000 m)

Triple Prism

N/A

No Prism

N/A

Mini Prism

Up to 1,640 ft. (500 m)

Reflective Tape

N/A

Reflector Sheet

Up to 1,640 ft. (500 m)

Cat Eye/Flat Prism

N/A

360 Degree Prism

N/A

Functions

Coordinate Measurement Point

Yes

Angle and Distance Stake Out

Yes

Stake Out Line

Yes

Offsets

Yes

Missing Line

Yes

Remote Elevation

Yes

Resection

Yes

Area Calculation

Yes

Real-Time Video Imaging

No

Measurement Time

Fine

0.9 second

Rapid

0.6 second

Tracking

0.4 second

Laser Plummet

Accuracy

<=1.6 inch at 4.3 feet

Class

Class 2

Wavelength

635 nm ± 10 nm

Laser Pointer

Class

Coaxial red laser using EDM beam

Accuracy

N/A

Reflectorless range

N/A

Wavelength

N/A

Range to reflective tape

N/A

Range to glass prism

N/A

Interface

Bluetooth

Yes (1023562-02, 1023562-01)

USB

N/A

Pin Port

RS-232C

Operating System

Linux

RC-PR5 Remote Control System

Operating Range

N/A

Measuring Time

N/A

Auto-pointing

One AP Prism

N/A