Advanced Spectrometer, This instrument whilst robust enough for individual student use and also intended for more advanced work, Each

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Here is the corrected text: • Scale: The 150mm-diameter circle, protected by a plastic shield, is fixed to the telescope movement, and the table is attached to the double-ended vernier, which reads 30 seconds of arc. Both telescope and table rotations have fine adjustment screws, and releasing the clamping screw enables adjustments of both movements to be made by hand. • Collimator: Mounted on a fixed pillar, it features a 178mm focus, 32mm achromatic objective with a 28mm clear aperture. A unilaterally adjustable slit, 7mm long, is also fitted. • Telescope: Mounted on a movable pillar, it features a 178mm focus, 32mm achromatic objective with a 28mm clear aperture. Additionally, a 10x Ramsden eyepiece and a glass cross-line graticule are included. Both the telescope and collimator have rack-and-pinion focusing. • Prism table: The table is marked with lines to assist in placing the prism relative to the table leveling screws. • Mass: 11 kg Standard accessories supplied: • 1 prism clamp • 1 diffraction grating holder • 1 magnifier bi-focal (PH0509) • 1 tommy bar for adjusting optical axes • 1 plywood case Comprehensive setup instructions are also provided. Please note that the prism is not included with this product.