PASCO Specialty & Mfg. OS-8543 User's Manual
Contents
1. b Place the base of the filter bracket over the front hole of the light sensor mount such that the hole in the bracket base aligns over the front hole on the mount and the front hole of the light sensor arm c Place the Infrared Light Sensor over the base of the bracket While holding the sensor in place with one hand use the other hand to insert the threaded post from beneath the sensor Rotate the post until the sensor holds firmly in place against the bracket and mount The glass filter should fit snugly against the sensor with the bracket under the case Figure 4 PASC ON secrentific Uo Prism Mount infrared filter filter bracket light sensor light sensor arm Figure 4 Attaching the Infrared Light Sensor and Filter Bracket Limited Warranty PASCO scientific warrants the product to be free from defects in materials and workmanship for a period of one year from the date of shipment to the customer PASCO will repair or replace at its option any part of the product which is deemed to be defective in material or workmanship The warranty does not cover damage to the product caused by abuse or improper use Determination of whether a product failure is the result of a manufacturing defect or improper use by the customer shall be made solely by PASCO scientific Responsibility for the return of equipment for warranty repair belongs to the customer Equipment must be properly packed2. Instruction Sheet for the PASCO Model OS 8543 012 07111A 12 99 1 00 Prism Mount with prism included flange prism prism mount bracket Accessories included thumb beveled stop piece for the light sensor arm filter bracket filter base extension side view threaded post base of side view of 3 bracket of prism mount with infrared filter Introduction The OS 8543 Prism Mounting attaches to PASCO s Educational Spectrophotometer OS 8539 Use the OS 8543 Prism Mount to convert the OS 8539 grating spectrophotometer to a prism spectrophotometer A prism spectrophotometer has two advantages over a grating spectrophotometer a It eliminates overlap of the orders of spectral lines observed with a grating and b The spectrum is brighter because it does not spread over several orders or in both directions EQUIPMENT Parts Included e 60 degree dense flint glass prism with prism mount and label OS 8543 e Beveled stop piece for use with the light sensor arm of the OS 8539 Educational Spectrophotometer System e Two 6 32 x 1 2 thumbscrews e One infrared filter with bracket e One washer Additional Equipment Required e OS 8539 Educational Spectrophotometer System Recommended Equipment e Black Body Light Source OS 8542 e Computer based Optics System II OS 8548 Specifications Prism Material Flint glass Side dimensions 20 mm x 20 mm Shape Equilateral triangle Flatne
3. e Stop to the Light Sensor Arm Note Before attaching the stop remove the light sensor arm if attached from the degree plate of the OS 8539 Educational Spectrophotometer a Attach the stop to the light sensor arm using the two screws provided Figure 1 Note the orientation of the stop Position the beveled corner of the stop so that it will hit against the angle indicator on the spectrophotometer table beveled corner Pa light sensor arm Figure 1 Attach the stop piece to the light sensor arm 012 07111A 2 Mount the Light Sensor Arm to the Degree Plate a Align the light sensor arm over the bracketed markers and the edge holes displayed on the top surface of the degree plate Use the thumb screws to secure the arm to the plate b After securing the arm check to ensure the arm rotates throughout the full range between the reference line zero mark and the stop against the angle indicator approximately 76 degrees 3 Attach the Prism Mount to the OS 8539 Educational Spectrophotometer a Set the angle indicator on the spectrophotometer table to zero b Locate the hole in the center of degree plate resting over the spectrophotometer table Insert the threaded post into the center hole and slowly turn the prism mount until the base of the mount piece is positioned loosely over the top of the degree plate Figure 2 Note Do not screw the prism down too tight The light sens
4. or arm must be free to rotate under the prism without touching the prism mount c Rotate the prism mount until it clears the light sensor arm and the prism is oriented with its apex pointed in the direction of the light source Keep the tab indicator aligned with the 0 and 180 degree lines on the plate prism mount light sensor angle indicator 180 degree line 0 degree line Figure 2 Attach the Prism Mount to the OS 8539 Educational Spectrophotometer IZEIA scientific 012 07111A For accurate wavelength measurements the prism mount must remain fixed such that the back face of the prism is perpendicular to the incoming light source Figure 3 d From the bottom side of the degree plate place a lock washer and wingnut on the threaded post Rotate the wingnut to help secure the mount against the spectrophotometer table light sensor collimating lens path of light light source Z WY FN collimating slits f focusing lens Figure 3 Path of Light Through the Prism 4 Attach the Infrared Filter Bracket to the Infrared Light Sensor if using the Infrared Light Sensor To observe infrared wavelengths use the Infrared Sensor instead of the High Sensitivity Light Sensor a To replace the high sensitivity light sensor rotate the threaded post clockwise to loosen the attachment and remove the light sensor
5. ss One wavelength Mounting Piece Base length 3 32 Base width 47 Bracket height 2 50 Flange 75 x 49 Post length 75 Post thread 8 32 x 75UNC 2A 1999 PASCO scientific PASC ON scientific 10101 Foothills Blvd Roseville CA 95747 7100 Phone 916 786 3800 FAX 916 786 8905 www pasco com Prism Mount Description of Parts The Prism Mount piece attaches to the top side of light sensor arm used in the OS 8539 Educational Spectrophotometer The beveled stop piece attaches to the bottom side of the light sensor arm Figure 1 and is designed to limit the range that the light sensor arm travels to less than 90 degrees from the reference line The reference line is the straight path in which parallel rays of light travel from the light source through the collimating and focusing lenses To observe the position of the light sensor arm at the reference line move the arm until the angle indicator reads 0 degrees The light spectrum refracted through the prism is typically observed between 58 62 degrees from the reference angle When the stop piece rests against the angle indicator the angle is approximately 76 degrees The infrared filter and bracket are designed for use with the PASCO CI 6628 Infrared Light Sensor The bracket comes with the glass filter attached Use the infrared sensor for experiments such as blackbody when it desired to measure infrared wavelengths 1 Attach th
6. to prevent damage and shipped postage or freight prepaid Damage caused by improper packing of the equipment for return shipment will not be covered by the warranty Shipping costs for returning the equipment after repair will be paid by PASCO scientific Address PASCO scientific 10101 Foothills Blvd Roseville CA 95747 7100 Phone 916 786 3800 FAX 916 786 8905 e mail techsupp pasco com Web site www pasco com Prism Mount Copyright The PASCO scientific 012 07111 instruction sheet is copyrighted and all rights reserved However permission is granted to non profit educational institutions for reproduction of any part of the Prism Mount instruction sheet providing the reproductions are used only for their laboratories and are not sold for profit Reproduction under any other circumstances without the written consent of PASCO scientific is prohibited Feedback If you have any comments about the product or manual please let us know If you have any suggestions on alternate experiments or find a problem in the manual please tell us PASCO appreciates any customer feedback Your input helps us evaluate and improve our product To Reach PASCO For technical support call us at 1 800 772 8700 toll free within the U S or 916 786 3800 fax 916 786 3292 e mail techsupp pasco com web WWw pasco com 012 07111A IZEIA scientific
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