Arc 6
TELESCOPE
Tube Length	154mm
Objective Lens Diameter	Telescope: 45mm;  EDM: 50mm
Magnification	30X
Image	Erect
Field of View	1°30’
Resolving Power	3”
Min. Focus	1.0m
DISTANCE MEASUREMENT
Single Prism	5000m *1
Non-Prism	800m*2
Accuracy  -Prism Mode	±(2mm+2ppm x D)m.s.e. *3
-Non-Prism Mode	0-300m:±(3mm+2ppm x D)m.s.e. *3
	300m-800m: ±(5mm+3ppm x D)m.s.e. *3
Measuring time	fine: 0.3s; tracking: 0.1s *4
Atmospheric Correction	T-P Sensor, Auto Detect and Correct
Prism Constant	Manual Input, Auto Correction
ANGLE MEASUREMENT
Method	Absolute Encoding
Detecting System	H: 2 sides      V: 2 sides
Min Reading	0.5”/1”/5”10” selectable
Accuracy	2”
Diameter of Circle	79mm
Vertical Angle 0°	Zenith: 0°/Horizontal:0°
Unit	360°/400gon/6400mil
DISPLAY
Size	3.5”; 320*240 Dot Matrix
No.of Display	2 Color Screens
Keyboard	Alphanumeric
TILT CORRECTION
Tilt Sensor	Dual Axis
Method	Liquid Electric
Range	±3′
Setting Unit	1”
LEVEL SENSITIVITY
Plate Level	30”/2mm
circular vial	8’/2mm
OPTICAL PLUMMET(OPTIONAL:INTERNAL LASER PLUMMET)
Image	Erect
Magnification	3X
Focusing Range	0.3m ~ ∞
Field of View	5°
DATA STORAGE INTERFACE
Storage	Internal Memory: 4MB; Max.SD card:32GB
Data Interface	SD-card/Mini USB/RS232C
GENERAL
Laser Class *5  -EDM	Class IIIA
-Laser Plummet	Class II
Working Temperature	-20°C~ + 50°C
Battery Type	Rechargeable Lithium Battery
Battery Voltage	DC 7.4V
Working Time	8h
Water & Dust Proof	IP55