2LS Orion

Accuracy (height) ±2.0mm at 30m

Accuracy (distance) ±10mm @ 10m

Working range (Tape staff) 0.9 to 30m (2.9 to 98ft) Working Range (Aluminum Staff) 2.0 to 50m (6.5 to 164ft)

Measuring time <2sec

Magnification 20X

Self-compensation range ±12°

TELESCOPE Length 206mm

Magnification 20X

Objective aperture 30mm (1.18in.)

Resolving power 4.5″

Field of view 1°20′

Minimum focus 0.9m (2.9ft)

Image Erect

Stadia ratio 1:100

Stadia constant 100

COMPENSATOR

Type Pendulum compensator with magnetic damping system

Working range ±12′

HEIGHT MEASUREMENT

Accuracy

Electronic reading ±2.0mm at 30m

Optical reading ±2.0mm at 30m

Measuring range

Tape staff BCX 0.9 to 30m (2.9 to 98ft)

Aluminum staff BAS 2.0 to 50m (6.5 to 164ft)

Measuring time <2sec

Least count 0.001m, 0.01ft

Minimum light for measurement 20lx. @ staff surface

DISTANCE MEASUREMENT

Accuracy

Aluminum staff BAS

D<=10m ±10mm 1

0m<D<=50m ±0.25% x D

Least count 0.01m, 0.1ft

USER INTERFACE

Display 7 segment and character LCD with backlight

Keyboard 6 keys (5 on front panel, 1 on side)

Circular level sensitivity 8’/2mm

MEASUREMENT PROGRAM

MeasurementProgram Single/Continuous/Elevation/Height difference

ENVIRONMENTAL

Water and dust resistance IP55 Category2

Operating temperature -20℃ to +50℃

OTHERS

Power supply AA dry cells x 2

Operating time 120hrs = 50,000 points (at +20℃, point every 5 sec)

Weight 1.8kg (include batteries)

Size 206 x 123 x 137mm