Spectrometer - Standard

This is a robust instrument designed for advanced level work. The main structure is of heavy cast metal, with chrome plated fittings. The complete instrument is supplied with wooden case.

•  Scale: the 150mm diameter circle wit protective plastic sheild fixed to the telescope movement and the table is attached to the double ended vernier, which reads to 1 minute of arc. Both telescope and table rotation fine adjustment screws, and release of a clamping screw enables adjustment of both movements to be made by hand
•  Collimator: Mounted on fixed and fitted with 178mm focus achromatic objectives, 25mm clear aperture. Also fitted is a unilaterally adjustable slit 7mm long.
•  Telescope: Mounted on a moveable pillar fitted with 178mm focus achromatioc objective, 25mm clear aperture. Also fitted is a 8 x Ramsden eyepiece and a glass cross line graticule. Both the telescope and collimator have rack pinion focussing. Means are provided for levelling the axis of both optical units and for squaring them to axis of rotation
•  Prism table: The table is marked with lines to assist placing prism with respect to the table levelling screws
•  Accessories: 1 prism clamp, 1 difractiongrating holder, 1 magnifier, 1 tommy bar for adjusting optical axis