The DE Series model numbers that reflect angle accuracy and have common features. All models have dual displays, and a detachable tribrach. The DE2A has 2", the DE5A has 5", and the DE10A has 10"angle accuracy. Horizontal and vertical angles can be observed simultaneously on the large 2 line, back-lit LCD displays. Other standard features include a horizontal angle zero set, automatic power off to conserve batteries, and a battery life indicator on the LCD display.
FEATURE:
***** code system is adopted and two sides of LCD display plates can save power and display clearly.
2.High integrated electronic boards and all famous IC elements are high quality.
3.Steel axes imported lubricating oil and metal shell are adopt
SPECIFICATION:
Model DE2A/B DE5A/B DE10A/B
Telescope
Length 165mm 165mm 165mm
Objective lens aperture φ45mm φ45mm φ45mm
Magnification 30X 30X 30X
Image Erect Erect Erect
Field of view 1°30＇ 1°30＇ 1°30＇
Resolving power 3.3〞 3.3〞 3.3〞
Shortest sighting dictance 1m 1m 1m
Additive constant 0 0 0
Stadia proportion constant 100 100 100
Angle measurement
Minimum reading 1〞/5〞 1〞/5〞/10〞 1〞/5〞/10〞/20〞
accuracy 2〞 5〞 10〞
Display
Display mode Double sides display Double sides display One side
illuminiation Provide Provide Provide
Compensator
Tilt sencor A Provide / B unprovide A Provide / B unprovide A Provide / B unprovide
Compensating range ±3＇ ±3＇ ±3＇
Optical plummet
Magnification 3X 3X 3X
Field of view 5° 5° 5°
Focusing range 0.5m～∞ 0.5m～∞ 0.5m～∞
Level sensitivity
Plate level 30〞/2mm 30〞/2mm 30〞/2mm
Circle level 8＇/2mm 8＇/2mm 8＇/2mm
Data output
Output interface RS232C RS232C RS232C
Power supply
Rechargeable battery 1800mAh Ni-MH 1800mAh Ni-MH 1800mAh Ni-MH
Battery working time 10-20h 10-20h 10-20h
Others
Waterproof class IP45 IP45 IP45
Tribrach type Detachable Detachable Detachable
