Application: This digital type high-precision projector is a highly efficient measuring instrument integrating light, machine and electricity. It can be widely used for industries such as mold manufacturing, metal work pressing, electronics, instrument, horologe, as well in universities, research institutes and metering examination departments. Features: This product features its good quality optical path, rational design, clear object lens imaging and accurate magnification, with tolerance for displayed value up to£¨3+L/75£©¦Ìm. (Here, L stands for the measured length (mm)). It has humanized design, 45 ¡ã oblique angle between mechanical ascent handle and operator, ensuring easy operation. No occurrence of blocking as the traditional leather belt transmission is replaced. Attached RS232 interface allows the easy upgrading for software. Asterisk-shaped line is internally marked on the glass of projection screen (exclusive design), ensuring long service life without the need of replacement. Specifications: MODEL SP-3015 Projection screen: effective diameter (mm): ¦Õ300mm, working scope£¾¦Õ300 (internally marked with asterisk-shaped line) Projection screen¡¯s rotation angle: 0¡«360¡ã Resolution of rotation angle: 0.01¡ã or 1¡ä Object lens¡¯s magnification: 10¡Á£¨standard£© 20¡Á£¨optional£© 50¡Á£¨optional£© 100¡Á£¨optional£© View-field of object (mm): ¦Õ30 ¦Õ15 ¦Õ6 ¦Õ3 Working distance for object (mm): 78.33 44.93 27.63 23.60 Metal stage size: 306¡Á206mm Glass stage size: 196¡Á125mm Travel¡ªX, Y axis: 150¡Á100mm ( big workstage ) Z axis travel: 85mm Resolution of X Y: 0.001mm(digital display) Accuracy: (3+L/75)¦Ìm Data processor: DC-3000 or DS801 Ascent and descent mechanism: 45 ¡ã oblique tooth gear Profile and surface light source 24V/150W tungsten halogen lamp (German Philips) Over dimensions: 570¡Á770¡Á1180mm Weight: 150kg Power supply: 110V/220V (switch) ; 50/60HZ(switch) Optional accessories: attached RS232 interface, optional 2D measuring software, ensuring convenient operation.