<Specifications of GPT-3000LN>

GPT-3002LN/N

GPT-3003LN/N

GPT-3005LN/N

GPT-3007LN/N

TELESCOPE

Length

150mm

Objective Lens Dia.

45mm (EDM 50mm)

Magnification

30x

Image

Erect

Field of View

1°30´

Resolving Power

2.8"

Min. Focus Distance

1.3m (4.9 ft.)

DISTANCE MEASUREMENT:
Prism Mode

Measuring Range
1 prism

3,000m
Condition 1: Sight haze with visibility about 20km (12.5 miles) moderate sunlight with light heat shimmer.

Measurement Accuracy

Fine: (3mm+2ppm)m.s.e.

Coarse: (7mm+2ppm)m.s.e.

Measuring Time

Fine mode 1mm: Approx. 1.2 sec. (Initial 3 sec.)
0.2mm: Approx. 3.0 sec. (Initial 4 sec.)

Coarse mode 1mm/10mm
Approx. 0.5 sec. (Initial 2.5 sec.)

DISTANCE MEASUREMENT:
Non-Prism Mode (Diffusing Surface)

Measuring Range

1.5m to 250m

Measuring Accuracy

Fine: 1.5 to 250m (10mm)m.s.e. 25m or more (5mm)m.s.e.

Coarse: (10mm)m.s.e.

Measuring Time

Fine mode 1mm: Approx. 1.2 sec. (Initial 3 sec.)
0.2mm: Approx. 3.0 sec. (Initial 4 sec.)

Coarse mode 1mm/10mm:
Approx. 0.5 sec. (Initial 2.5 sec.)

DISTANCE MEASUREMENT:
Non-Prism Long Mode (Diffusing Surface)**

Measuring Range

5m to 1,200m

Measuring accuracy
(<500m, Kodak Gray Card White Surface (90%))

Fine 1mm: (10mm+10ppm)m.s.e.

Coarse 5mm/10mm: (20mm+10ppm)m.s.e.

Tracking 10mm: (100mm)m.s.e.

Measuring Time

Fine mode 1mm:
Approx. 1.5 to 6 sec. (Initial 6 to 8 sec.)

Coarse mode 5mm/10mm:
Approx. 1 to 3 sec. (Initial 6 to 8 sec.)

Tracking mode 10mm:
Approx. 0.4 sec. (Initial 4 to 7 sec.)

DISTANCE MEASUREMENT

Least Count in Measurement:
Prism Mode/Non-Prism Mode

Fine mode 1mm/0.2mm

Coarse mode 10mm/1mm

Least Count in Measurement:
Non-Prism Long Mode

Fine mode 1mm

Coarse mode 5mm/10mm

Tracking mode 10mm

Measurement Display

12 digits: max. display 99999999.9999

Atmospheric Correction Range

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

Atmospheric Correction Range Prism Constant Correction Range

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

ANGLE MEASUREMENT

Method

Absolute Reading

Detecting System

H: 2 sides
V: 2 sides

H: 2 sides
V: 1 sides

H: 1 sides
V: 1 sides

Minimum Reading

1″/5″
(0.2/1mgon)

5″/10″
(1/2mgon)

Accuracy*

2″
(0.6mgon)

3″
(1mgon)

5″
(1.5mgon)

7″
(2mgon)

Measuring Time

Less than 0.3 sec.

Diameter of Circle

71mm

DISPLAY

Display Unit

Graphics LCD 160x64 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)

OTHERS

The Number of Measuring Points Instrument

Approx. 24,000 points

Height

176mm (6.93 in.)

Laser Class

Class 1 (for distance measurement)

Class 2 (Laser Pointer on)

LEVEL SENSITIVITY

Circular Level

10´ /2mm

Plate Level

30″ /2mm

40" /2mm

DIMENSION

336(H)x184(W)x172(L)mm/13.2(H)x7.2(W)x6.8(L)in.

WEIGHT

Instrument (with battery)

5.3kg (11.6 lbs.)

Plastic Carrying Case

3.4kg (7.5 lbs.)
(Weight of the carrying case may be slightly different due to specific market.) IP66 (with BT-52QA) (Based on the standard IEC60529)

DURABILITY

Protection against water and dust

IP66 (with BT-52QA) (Based on the standard IEC60529)

Ambient Temperature Range

-20℃ to +50℃ (-4°F to +122°F)

BATTERY
BT-52Q

Output Voltage

DC 7.2V

Capacity

2.7 Ah (Ni-MH)

Maximum operating time (when fully recharged) at +20C (+68°F):
Including distance measurement

3000LN: 3.5 hours, 3000N: 4.2 hours

Maximum operating time (when fully recharged) at +20C (+68°F):
Angle measurement only

45 hours

Weight

0.3kg (0.7 lbs.)

BATTERY CHARGER
BC-27

Input Voltage

AC 100～120V (BC-27)

Frequency

50/60Hz

Recharging Time
(at +20℃/+68°F)

Battery BT-52QA: 1.8 hours

Discharging Time
(at +20℃/+68°F)

Battery BT-52QA: 8 hours (in case of full charge)

Operating Temperature

+10℃ to +40℃ (+50°F to 104°F)

Weight

0.5kg (1.1 lbs.)