PRECISION SPECTROMETER HLS-601&701

1. PRECISION SPECTROMETER TM PHYSICAL INSTRUMENTS ed i e Design to Maximum u g v Acc racy. HLS-601/701 Precision Spectrometer is a product of meticulous quality and excellent craftsmanship. Its precisely engineered mechanical features and best quality optical components assure overall superiority in performance required in Degree & Intermediate Science Classes and in Technical Laboratories. Lifelong Stainless Steel Scales & V erniers, Calibrated on IMPOR TED machine Accuracy of + .001%. ISO9001:2008 An 63 C E R T I F I E D

2. PRECISION SPECTR OMETER TM HLS-601 HLS-603 HLS-701 HLS-703 Reading to 1 minute of an arc 6” circle. PHYSICAL INSTRUMENTS Reading to 30 second of an arc 6” circle. Reading to 1 minute of an arc 7” circle. Reading to 30 second of an arc 7” circle. HLS-801 Deluxe Model Reading to 10 or 20 seconds at an arc 10" circle. Technical Specifications : Salient Features DURABLE CONSTRUCTION provider a sturdy base fitted with Levelling Screws and carries the fixed collimator arm and a swinging Telescope arm. : Heavy metallic casting CUSTOM PRISM : Prism Table with grating holder is provided with three leveling screws and is engraved with concentric lines to facilitate correct location of the prism. It may be raised or lowered & rotated independently of the verniers.   ACCURATELY COLLIMATOR TUBES : Telescope & Collimator tubes are carried on sturdy machined pillars, which are accurately adjusted to make the axis of the telescope & collimator pass through the axis of the instruments. ADJUSTED TELESCOPE &  CALIBRATED SCALE : Scale is machine-divided in ½ degrees or 1/3 degrees on a lifetime Stainless Steel Circle. A cover plate fully protects the scale from dust and carriers two transparent plastic protected windows for verniers. The scale circle is provided with slow & quick tangential movements being fixed to the telescope arm. Accuracy of calibrations +.001%. Two verniers are provided reading to 1 minute of the Arc. (or 30 secs. if so specified).  Adjustment to the collimator & telescope tubes are provided for setting their optical axis at right angles to the vertical axis of the spectrometer. Both the Telescope & Collimator tubes are fitted with smooth rack & pinion adjustment. FINEST QUALITY ACHROMATIC OPTICS : The objectives are 1” clear aperture with 10x RAMSDEN Eyepiece fitted with cross line glass graticule to produce sharp spectral images.  STAINLESS STEEL SLIT : Slit of the collimator is from Stainless Steel and the slit jaws are finished and ground with the utmost care and optically tested for accuracy of the edges. The two jaws are operated by knurled ring and move symmetrically from the centre and remain parallel at all openings. A sliding Shutter is provided to increase or decrease the length of the slit.  PACKAGING : The instrument is furnished in epoxy finish with bright chrome plated parts with Dust Cover and a STYROFOAM molded pack, packed in wooden cabinet.  The spectrometer can be made in 6” and 7” circle scale with re ading to 1 minute or 30 second. OPTIONAL ACCESSORIES Model HL-7, HLS-601, HLS-701 • Ramsden Eyepiece 10x. • Ramsden Eyepiece 10x with Holder & Optical Cross Graticule. ISO9001:2008 An 64 C E R T I F I E D