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DESCRIPTION

SURVEYING INSTRUMENT
MODEL ET-20F
MANUFACTURER SINCON
 

PRODUCT INFORMATION


ELECTRONIC THEODOLITE


ET-20F 

 

 
FEATURES
- SMART DESIGN
- REASONABLE STRUCTURE
- PRACTRICAL FUNCTIONS
- EASY-TU-USE OPERATION
- EXCELLENT PERFORMANCE
- RELIABLE QUALITY
 
LARGE LCD
Filter
Diagonal Eyepiece
AA Batteries
Re-chargeable Batteries
Carrying Case

SPECIFICATION
TELESCOPE
ET-02F
ET-05F
ET-10F
ET-20F
Image
Erect 
Magnification
30X 
Effective Aperture
45mm 
Resolving power
3" 
Field of view
1°30"
Minimum focusing distance
1.4m 
Stadia ratio
100 
Stadia constant
0 
Tube length
157mm 
ANGLE MEASUREMENT 
Reading system
Photoelectric detection by incremental encoder 
Diameter of circle(VH2)
79mm
Minimum reading
1"/5"(Selectable)
10"/20"(Selectable) 
Accuracy
2"
5"
10"
20"
Horizontal angle
Dual
Dual
Dual
Dual
Vertical angle
Dual
Single
Single
Single
DISPLAY
(LCD Display type)
2 sides, segment LCD in two lines 
DATA OUTPUT
Data I/O
RS-232C
LEVEL SENSITIVITY
Plate level
30"/2mm
Circular level
8‘/2mm
AUTO VERTICAL COMPENSATOR
System
Liquid-electric detection / plate level selectable
Working range
+3‘
Accuracy
1"(Liquid-electric detection)
30"/2mm(plate level)  
OPTICAL PLUMMET TELESCOPE
Image
Erect
Magnification
3X
Focusing range
0.5m - ∞