Complaint
MODEL W420-4A IS THE COMBINATION OF W420-3 AND THE FOCUSING TUBE.THE FOCUSING TUBE CAN CALIBRATE THE LINE ERROR WHICH MAY OCCUR WHEN THE TELESCOPE CHANGE ITS FOCUS. HIGH PRECISION LIFTING PLATFORM.
*Main Technical Parameters:<o:p>
Tube length: 520mm<o:p>
Tube focus: 420mm<o:p>
Tube Aperture: 55mm<o:p>
Resolution: 3"<o:p>
Angle of field of view: 10°20<o:p>
Accuracy(Reticle's division value): 30"<o:p>
Magnification: 5.7~7X<o:p>
<o:p>
The shortest target of the level tube: 2m<o:p>
The far target: ∞ <o:p>
The micro adjusting range of the front/back horizontal tube: 5" <o:p>
Horizontal: ≤10", <o:p>
Vertical: ≤10"
Tubes position: <o:p>
Horizontal(0°,20°),elevation(30°) and depresion(30°)
<o:p>
LINE ERROR OF THE FOCUS TUBE:≤0.005 <o:p>
<o:p>
Level accuracy: <o:p>
Round level(On the foundation of the front column): 8"/2mm, <o:p>
long level(On the front/back horizontal tube):20"<o:p>
<o:p>
Lifting range of the lifting platform: ≥320mm<o:p>
<o:p>
Power supply for tube: 4.5~6V,2.1W<o:p>
Switch power: 1~10A<o:p>
Lighting source: cold light (with adjustable intensity), green <o:p>
<o:p>
Shipment package: 3wooden cases,140kgs,0.5cbm
