Instruction manual

48
12 SPECIFICATIONS
(DT-205/207/209/209P)
Item Item
Model
DT-205 DT-207
DT-209/
209P
Telescope Length 149mm 149mm 149mm
Objective lens 45mm 45mm 40mm
Magnification 30× 30× 26×
Image Erect Erect Erect
Field of view 1° 30' 1° 30' 1° 30'
Resolving power 2.5" 2.5" 3"
Minimum focus 0.9m 0.9m 0.9m
Stadia ratio 100 100 100
Stadia constant 0 0 0
Electronic Angle Mea-
surement
Method Absolute Absolute Absolute
Detecting Horizontal :
2 sides
Horizontal :
2 sides
Horizontal :
1 sides
Vertical :
1 side
Vertical :
1 side
Vertical :
1 side
Minimum reading 1"/5"
(0.5mgon/1mgon)
5"/10"
(1mgon/2mgon)
10"/20"
(2mgon/5mgon)
Accuracy *1) 5" 7" 9"
Diameter circle 71mm 71mm 71mm
Display Unit 2 sides 2 sides 1 sides
Illumination Display Ye s Ye s Ye s
Reticle Ye s Ye s No
Compensator Tilt sensor Automatic
vertical
compensator
No No
Compensating
range
± 3' No No
Optical
Plummet
Telescope
Magnification 3x 3x 3x
Filed of view 3° 3° 3°
Focusing 0.5m~∞ 0.5m~∞ 0.5m~∞
Level
Sensitivity
Plate level 40"/2 mm 40"/2 mm 60"/2 mm
Circular level 10'/2mm 10'/2mm 10'/2mm
Water protection Standard IP 66 IP 66 IP 66
Power Supply Battery 4 AA
batteries
4 AA
batteries
4 AA
batteries
Operating Time
(Alkaline manganese
dry batteries),
(+20°C [+68° F]Åj
Theodolite only Approx. 140
hours
Approx. 150
hours
Approx. 170
hours
Tr i br a c h Ty p e Detachable Detachable Fixing: DT-209
Centering:
DT-209P