Intermediate Spectrometer Analytical Instrument

This excellent instrument is easy to set up and easy to use and is designed for students to make precise measurements. This unit features high quality 22MM optics, a built-in illuminated auto-collimator for fast set up, a 17.8 cm diameter divided circle with clear gradations, a double-ended Vernier with illuminated magnifier reading to 1' resolution, and a 7cm diameter prism table which rotates 360 degrees and adjusts 2 cm in height for any size of accessories. It comes complete with grating and holder, prism, illuminated magnifier, auto-collimation mirror, power supply (for 110VAC), and a detailed instruction manual. The advanced features of this traditional-design spectrometer as well as its robust construction have made it one of the most popular economical instruments for coursework. The spectrometer addresses the three key areas for successful student measurements: alignment of the instrument, easily recognizable images, and easy reading of the scales. Specifications: Optics: 22mm diameter achromatic objectives, drawtube and lock screw focusing, helical eyepiece accommodation, built-in auto-collimation system. Divided circle & vernier: External divided circle 178mm diameter, graduated 0-360 x 30, double-ended internal flush vernier reading to 1', illuminated vernier magnifier, circle and vernier fine adjustments engaged by lock screws, range 4. Prism.grating table: 7cm diameter with engraved rings/radii pattern. Prism clamp and grating holder included. Fully rotatable with 3 leveling screws and height adjustment (range 2 cm). Dimensions: Base spread 24cm, height 26cm, telescope swing radius 27.5cm. Weight 15kg (33 lbs). Accessories included: Prism, diffraction grating and holder, auto-collimation mirror, power supply, illuminated magnifier, and operators manual. Additional Accessories required but not included: Spectrum tubes with power supply.