SPECIFICATIONS FOR DT-2/DT-5/DT-10

● Telescope

Image ……………………… Erect image

Magnification ……………………… 30X

Objective aperture ……………………… 45mm

Resolving power ……………………… 3"

Field of view ……………………… 1°30′

Shortest focusing distance …………… 1.2m

Stadia ratio ……………………… 100

Stadia constant ……………………… 0

Sight distance precision …………… ≤ 0.4%D

Tube length ……………………… 156mm

● Angle measurement

Angle measurement mode ……… Photoelectric

detection by incremental encoder

Dia of circle(vertical, horizontal) …… 79mm

Minimum count …………………1", 5" or 5",10"

Mode of detection ………… Horizontal angle: Pual

Dual Vertical angle: Single

Measurement Unit …………… 360°/400gon/6400mil

Available to choose

Precision ……………… DT- 2/5/10 : 2"/5"/10" order

● Leveling vials

Sensitivity of Plate vial(/ 2mm ) …………… 30" / 2mm

Sensitivity of circular vial …………… 8′/ 2mm

● Vertical compensatory

System ………………… liquid condenser

Working range ………………… ±3"

Precision ………………… 3"

● Optical plummet

Image ………………… Erect image

Magnification ………………… 3X

Focusing range ………………… 0.5 ～∝

Field of view ………………… 5°

● Display

Type ………… LCD, double line, line segment

● Data input/output

Data interface (2) ……………… RS -232C

● On-board battery

Power source ………… Rechargeable NI-MH Battery

Voltage ………………… DC 6V

Operating Time ………………… 13h

● Working environment

Working Temperature …………… -20 °～ + 45 °C

● Dimensions and weight

Overall dimensions ……………… 160×150× 330m

Instrument weight ……………… 5.2kg