PASCO Specialty & Mfg. SF-9216 User's Manual
Contents
1. 6 and adjust TR2 until the motor runs at maximum speed Replace the control panel Fuse Replacement The fuse is a dual element delay type Replace with the following fuse ratings For the 110V version use a 5A 117V fuse For the 220V version use a 2 5A 250V fuse Operating Two Air Tracks Two air tracks may be operated on a single Air Supply by using the optional T and hose Model SF 9217 The T is inserted into the Air Supply and one hose is connected to one of the outlets Naturally both air tracks must be connected to maintain air pressure Specifications D When connected to the SF 9214 Precision Air Track 382 holes 1 mm 0 038 in diameter each total hole area 300 mm 0 433 in the volume and pres sure is sufficient to lift a glider with a 200 g load set ting at 5096 of full range The input current at full speed is 2 2 Amps maximum amp The sound output is typically 10 20 dB above ambi ent noise The maximum sound output is low enough to allow normal conversation to be heard when the motor is on The volume of air produced is 1 02 m min 36 ft min and the pressure is 867 Pascals 0 0867 N cm or 0 122 Ibs in or 6 5 mm Hg at full speed Operating Two Air Tracks gt CAUTION For those using SF 9216 Air Supply with equip ment other than the PASCO Model SF 9214 Precision Student Air Track This air supply is designed for use with equipm2. Instruction Manual for 01202141H the PASCO scientific Model SF 9216 Variable Output Air Supply SF 9216 AIR SUPPLY 1991 PASCO scientific J 8 be 10101 Foothills Blvd e Roseville CA 95747 7100 scientific Phone 916 786 3800 e FAX 916 786 8905 www pasco com The lightning flash with arrowhead within an equilateral triangle is intended to alert the user of the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION TO PREVENT THE RISK OF ELECTRIC SHOCK DO NOT REMOVE BACK COVER NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL The exclamation point within an equi lateral triangle is intended to alert the user of the presence of important operating and maintenance servic ing instructions in the literature ac companying the appliance 012 02141H Variable Output Air Supply Table of Contents SSC UMN iv la dl ma yak dna IR SIR Page Copyright Warranty and Equipment Return seslene seansda susam ii TPO DUCTION eH MN 1 POLO msni aaa sa agn 1 Operating E Pic 2 POB SEEM A D aS 3 PCB Layout tC M 4 12K Tio i scientifi Variable Output Air Supply 012 02141H Copyright Warranty and Equipment Return
3. Please Feel free to duplicate this manual subject to the copyright restrictions below Copyright Notice The PASCO scientific Model SF 9216 Variable Output Air Supply manual is copyrighted and all rights reserved However permission is granted to non profit educational institutions for reproduction of any part of this manual 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 Limited Warranty PASCO scientific warrants this 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 workman ship This 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 packed to prevent damage and shipped postage or freight prepaid Damage caused by improper packing of the equipment for return ship ment will not be covered by the warranty Shipping costs for returning the equipment after repair will be paid by PASCO sci
4. Support Before you call the PASCO Technical Support staff it would be helpful to prepare the following information f your problem is with the PASCO apparatus note Title and Model number usually listed on the label Approximate age of apparatus A detailed description of the problem sequence of events In case you can t call PASCO right away you won t lose valuable data If possible have the apparatus within reach when call ing This makes descriptions of individual parts much easier f your problem relates to the instruction manual note Part number and Revision listed by month and year on the front cover Have the manual at hand to discuss your questions
5. ent for which the total area of air flow is at least 2 6 cm 0 4 in For air tracks this area is determined by multiplying the number of air holes on the surface of the track by the surface area per hole When used with equipment for which the air flow orifice is less than this value the rate of air flow is insufficient to cool the air supply and the supply may overheat and be damaged You may remedy this problem either by hooking up the air supply to additional equipment to meet the 2 6 cm or 0 4 in requirement or by bleeding the air line at some point to increase the area of the unrestricted air flow to an acceptable level Variable Output Air Supply 012 02141H PCB Schematic ierra vcr UL TLES102 TLES103 Figure 2 Klee scientific I7 Variable Output Air Supply 012 02141H PCB Layout Figure 3 peo Technical Support Feed Back If you have any comments about this product or this 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 feed back 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 email techsupp PASCO com Tech support fax 916 786 3292 Contacting Technical
6. entific Credits This manual edited by Dave Griffith Equipment Return Should the product have to be returned to PASCO scientific for any reason notify PASCO scientific by letter phone or fax BEFORE returning the product Upon notification the return authorization and shipping instructions will be promptly issued gt NOTE NO EQUIPMENT WILL BE ACCEPTED FOR RETURN WITHOUT AN AUTHORIZATION FROM PASCO When returning equipment for repair the units must be packed properly Carriers will not accept responsibility for damage caused by improper packing To be certain the unit will not be damaged in shipment observe the following rules D The packing carton must be strong enough for the item shipped Make certain there are at least two inches of packing material between any point on the apparatus and the inside walls of the carton Make certain that the packing material cannot shift in the box or become compressed allowing the instrument come in contact with the packing carton Address PASCO scientific 10101 Foothills Blvd Roseville CA 95747 7100 Phone 916 786 3800 FAX 916 786 3292 email techsupp pasco com web WWW pasco com IZEIA scientific 012 02141H Variable Output Air Supply Introduction The PASCO Air Supply is exceptionally quiet and its variable output lets you precisely match the air flow to the experiment Too much air causes turbulence resulting i
7. he air track is set up and operating adjust the air flow until the gliders just glide freely on the track If the air flow is too low the glider will touch the track and lose energy A higher air flow may cause the gliders to move ran domly in response to air turbulence around the surface of the track gt NOTE The apparatus is calibrated at 220 VAC 50 Hz and must be re calibrated for 220 VAC 60 Hz Please follow the instructions in the following section Variable Output Air Supply 012 02141H Adjusting the Motor Speed Air Flow Turn the control knob fully COUNTER clockwise After switching on the motor slowly turn the control knob CLOCKWISE The motor should begin running when the pointer on the control knob is near the 2 position If it does not then follow this procedure gt CAUTION When the case is opened there will be exposed high voltages This unit should be serviced or adjusted only by trained technicians Remove the four screws which attach the control panel to the main unit On one end of the printed circuit board are two trim potentiometers designated as TR1 and TR2 See Fig ure 3 amp Set TRI and TR2 to their mid position and turn the power switch to ON Set the speed control knob P1 fully counter clock wise 1 and turn TRI clockwise until the motor just begins to turn smoothly Set the speed control knob fully clockwise
8. n glider drift A 2 0 meter hose is included By adding the SF 9217 T Adapter and Hose described below the Air Supply can be used to operate two PASCO SF 9214 Air Tracks at the same time gt NOTE This Air Supply is for use with the SF 9214 Precision Air Track If used with a different track the total area of the air flow holes must be gt 2 6 cm 0 4 in 220 240 VAC 50 Hz shown Figure 1 SF 9216 Air Supply Setting Up the Air Supply Insert the short thick wall coupling on one end of the hose into the hole in rear of the air supply The other end of the hose with the longer thin wall coupling fits into the hole of the PASCO 2 meter Precision Air Track square cross section aluminum color Connect the air supply to a wall socket 115 VAC 60 Hz or 220 240 VAC 50 Hz The respective line voltages are marked on the rear panel Turn the unit on with the power switch Leave at least three inches of clearance around all sides of the blower for air intake and cooling If you wish to connect the SF 9216 Air Supply to the Daedalon 1 5 m Air Track triangular cross section black color it will be necessary to wrap one or two layers of electrician s tape around the air coupling on the track The hose from the Air Supply should now fit snugly over the coupling Adjusting the Air Supply The air flow from the Air Supply is easily adjusted by the knob on the front panel Once t
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