Electronic theodolite DE-2A
large LCD displays
dual displays and a detachable tribrach.
Horizontal angle zero set
automatic power off to conserve batteries
SPECIFICATIONS
The DE Series model numbers that reflect angle accuracy and have common features. All models have dual displays, and a detachable tribrach. Horizontal and vertical angles can be observed simultaneously on the large LCD displays. Other standard features include a horizontal angle zero set, automatic power off to conserve batteries, and a battery Iife indicator on the LCD display.
|
Model
|
DE2A/B
|
DE5A/B
|
|
Telescope
|
|
|
|
Length
|
165mm
|
165mm
|
|
Objective lens aperture
|
φ45mm
|
φ45mm
|
|
Magnification
|
30X
|
30X
|
|
Image
|
Erect
|
Erect
|
|
Field of view
|
1°30＇
|
1°30＇
|
|
Resolving power
|
3.3〞
|
3.3〞
|
|
Shortest sighting dictance
|
1m
|
1m
|
|
Additive constant
|
0
|
0
|
|
Stadia proportion constant
|
100
|
100
|
|
Angle measurement : Minimum reading
|
1〞/5〞
|
1〞/5〞/10〞
|
|
accuracy
|
2〞
|
5〞
|
|
Display mode
|
Double sides display
|
Double sides display
|
|
illuminiation
|
Provide
|
Provide
|
|
Compensator
|
|
|
|
Tilt sencor
|
A Provide / B unprovide
|
A Provide / B unprovide
|
|
Compensating range
|
±3＇
|
±3＇
|
|
Optical plummet
|
|
|
|
Magnification
|
3X
|
3X
|
|
Field of view
|
5°
|
5°
|
|
Focusing range
|
0.5m～∞
|
0.5m～∞
|
|
Level sensitivity
|
|
|
|
Plate level
|
30〞/2mm
|
30〞/2mm
|
|
Circle level
|
8＇/2mm
|
8＇/2mm
|
|
Output interface
|
RS232C
|
RS232C
|
|
Power supply: Rechargeable battery
|
1800mAh Ni-MH
|
1800mAh Ni-MH
|
|
Battery working time
|
10-20h
|
10-20h
|
|
Waterproof class
|
IP45
|
IP45
|
|
Tribrach type
|
Detachable
|
Detachable
|
|
Working temperature range
|
-20℃～+50℃
|
-20℃～+50℃
|
|
Dimension
|
150X165X335
|
150X165X335
|
|
Weight
|
5kg
|
5kg
|