Spectrometer, Advanced

**Delivery in 3 - 5 weeks** 

• Scale: The 150 mm diameter circle with protective plastic shield is fixed to the telescope movement and the table is attached to the double ended vernier which reads 30 seconds of the arc. Both telescope and table rotations have fine adjustment screws, and release of a clamping screw enables adjustments of both movements to be made by hand. 

• Collimator: Mounted on fixed pillar and fitted with 178 mm focus, 32 mm achromatic objective with 28 mm clear aperture. Also fitted is a unilaterally adjustable slit 7 mm long.
  

• Telescope: Mounted on moveable pillar and fitted with 178 mm focus, 32 mm achromatic objective with 28 mm clear aperture. Also fitted is a 10x Ramsden eyepiece and a glass cross line graticule. Both the telescope and the collimator have rack and pinion focusing.

   

• Prism table: The table is marked with lines to assist placing the prism with respect 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 setting up instructions also provided. Supplied WITHOUT prism.