BARNSTEAD THERMOLYNE S25500 MAXI STIRRER OPERATION MANUAL AND PARTS LIST SERIES 849 Model S25535 Series 849 120 Volt 50/60 HZ Model S25530 Series 849 240 Volt 50/60 HZ Model S25530-26 Series 849 220-240 Volt 50/60 HZ LT849X1 5/22/00
Table of Contents IMPORTANT INFORMATION This manual contains important operating and safety information. You must carefully read and understand the contents of this manual prior to the use of this equipment. Safety Information...3 Alert Signals...3 Warnings...3 Introduction...4 Electrical Ratings...4 Unpacking...4 Operation...5 Maintenance and Servicing...6 Parts List...7 Exploded View...8 Wiring Diagram...9 Ordering Procedures...10 One Year Limited Warranty...11 2
Safety Information Alert Signals Warning Warnings alert you to a possibility of personal injury. Caution Cautions alert you to a possibility of damage to the equipment. Note Notes alert you to pertinent facts and conditions. Hot Surface Hot surfaces alert you to a possibility of personal injury if you come in contact with a surface during use or for a period of time after use. Your Thermolyne Type S25500 Maxi Stirrer magnetic stirrer has been designed with function, reliability, and safety in mind. It is your responsibility to install it in conformance with local electrical codes. For safe operation, please pay attention to the alert signals throughout the manual. Warnings To avoid electrical shock, always: 1. Use a properly grounded electrical outlet of correct voltage and current handling capacity. 2. Disconnect from the power supply prior to maintenance and servicing. To avoid personal injury: 1. Do not use in the presence of flammable or combustible materials; fire or explosion may result. This device contains components which may ignite such materials. 2. Refer servicing to qualified personnel. 3
Introduction The Type S25500 Maxi Stirrer is designed to provide maximum torque for stirring viscous solutions and up to 35 gallons of aqueous solution within a speed range of 60 to 1050 rpm. The powerful 7.5 drive magnet can accommodate from 3 to 6 stir bars. Electrical Ratings S25535 120 Volt 1.4 Amps 160 Watts 50/60 Hz S25530 240 Volt.7 Amps 160 Watts 50/60 Hz S25530-26 220-240 Volt.7 Amps 160 Watts 50/60 Hz Unpacking Carefully unpack the unit. Be sure the bench or work area where the stirrer is placed will be able to support the weight of the stirrer plus the weight of the vessel and its contents. For example, the weight of the stirrer is 40 Ibs., the weight of a 30-gallon container may be about 15 Ibs., and 30 gallons of aqueous solution will weigh 250 Ibs. The total weight would therefore be greater than 300 Ibs. Alternatively, of course, the stirrer may be placed on the floor where it is more convenient in using the larger sizes of vessels. 4
Operation Note Unlike smaller magnetic stirrers, the motor of a large magnetic stirrer can be overloaded. This will cause the 1-1/2 ampere SLO BLO fuse to blow or the motor to overheat. Any stir-bar up to 6-1/4 long and 1-1/16 in diameter may safely be used with the Maxi Stirrer without danger of overloading the motor. Warning Disconnect from power supply before servicing. Refer servicing to qualified personnel. Place the vessel with its contents atop the stirrer. Any stirbar from 2 to 6 long may be used. To stir larger volumes or viscous solutions at higher speeds, it may be necessary to gradually increase the stirring speed control. Maximum stirring speeds attainable will be determined by the length and diameter of the stir-bar, the material of the vessel, the bottom configuration of the vessel (a slight crown in the center is desirable) and, of course, the volume and viscosity of the solution. The extremely strong pull of the stirring magnet on the stir-bar can cause friction between the stir bar and vessel bottom resulting in reduced stirring speed. The configuration and vessel material can drastically vary the amount of friction and corresponding speed reduction. The speed control rheostat is a combination ON OFF switch and setting selector. The fully counterclockwise position is OFF, fully clockwise is maximum speed. To select a speed, turn the speed control knob clockwise until the desired mixing action is achieved. A separate ON OFF rocker switch is provided in the event a desired setting is to be reused. The rheostat may be left at the setting and the stirrer turned off and on by means of the rocker switch. Repeated burn-out of the 1-1/2 ampere SLO BLO fuse is a good indication that the motor is being overloaded. DO NOT REPLACE WITH A LARGER AMPERAGE FUSE. Doing so can result in the motor burning out. If fuses blow consistently when the proper size stir-bars are used, it may indicate that the motor needs re-oiling. 5
Maintenance and Servicing Warning Disconnect from power supply before servicing. Under light to normal use, the motor will need to be reoiled only once every three years. With heavier use, oil every year or two. Remove dial plate front panel and add SAE 10 oil to the top and bottom bearings (see diagram). Refer servicing to qualified personnel. 6
Parts List Key Number Part Number Description 1 BC255X1 Bracket for Top Plate (2 required) 2 HN255X1A Handle (2 required) 3 PT255X1A Top Plate, Stainless Steel with Studs 4 FT255X1 Feet, Support Rods (8 required) 5 FZX9 Fuse Holder 6 FZX14 Fuse, 1.5 Amp Slo-Blo 7 CR584X1 Cord and Plug Set (120 V) 7 CR586X1 Cord and Plug Set (240 V) 7 CR849X1 Cord and Plug Set, -26 model (220-240 V) 8 MG849X1A Drive Magnet Assembly 9 MT255X1B Motor Assembly with Spacers 10 CAX24 Capacitor 11 TNX7 Transformer, Complete with Nut and Washer 12 TRX177 Terminal Block 13 KBX83 Knob 14 SWX137 Switch, On-Off (120 V) 14 SWX138 Switch, On-Off (240 V, 220-240 V) Not Shown TN849X1A Transformer, Step Down (240 V, 220-240 V models) Available upon request: Not Shown MGX7 Stir Bar, Teflon-coated, 4-1/4 long X 1-1/16 diameter 7
Exploded View 8
Wiring Diagram 9
Ordering Procedures Please refer to the Specification Plate for the complete model number, serial number, and series number when requesting service, replacement parts or in any correspondence concerning this unit. All parts listed herein may be ordered from the Barnstead Thermolyne dealer from whom you purchased this unit or can be obtained promptly from the factory. When service or replacement parts are needed we ask that you check first with your dealer. If the dealer cannot handle your request, then contact our Customer Service Department at 319-556-2241 or 800-553-0039. Prior to returning any materials to Barnstead Thermolyne Corp., please contact our Customer Service Department for a Return Goods Authorization number (RGA). Material Returned without an RGA number will be returned. 10
One Year Limited Warranty Barnstead Thermolyne Corporation warrants that if a product manufactured by Barnstead Thermolyne and sold by it within the continental United States or Canada proves to be defective in material or construction, it will provide you, without charge, for a period of ninety (90) days, the labor, and a period of one (1) year, the parts, necessary to remedy any such defect. Outside the continental United States and Canada, the warranty provides, for one (1) year, the parts necessary to remedy any such defect. The warranty period shall commence either six (6) months following the date the product is sold by Barnstead Thermolyne or on the date it is purchased by the original retail consumer, whichever date occurs first. All warranty inspections and repairs must be performed by and parts obtained from an authorized Barnstead Thermolyne dealer or Barnstead Thermolyne (at its own discretion). Heating elements, however, because of their susceptibility to overheating and contamination, must be returned to our factory, and if, upon inspection, it is concluded that failure is not due to excessive high temperature or contamination, warranty replacement will be provided by Barnstead Thermolyne. The name of the authorized Barnstead Thermolyne dealer nearest you may be obtained by calling 1-800-446-6060 (319-556-2241) or writing to: Barnstead Thermolyne P.O. Box 797 2555 Kerper Boulevard Dubuque, IA 52004-0797 USA FAX: (319) 589-0516 E-MAIL ADDRESS: mkt@barnstead.com Barnstead Thermolyne s sole obligation with respect to its product shall be to repair or (at its own discretion) replace the product. Under no circumstances shall it be liable for incidental or consequential damage. THE WARRANTY STATED HEREIN IS THE SOLE WARRANTY APPLICABLE TO Barnstead Thermolyne PRODUCTS. Barnstead Thermolyne EXPRESSLY DISCLAIMS ANY AND ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR FITNESS FOR USE. 11
Barnstead Thermolyne 2555 Kerper Blvd. P.O. Box 797 Dubuque, IA 52004-2241 Phone: 319-556-2241 800-553-0039 Fax: 319-589-0516 E-Mail Address: mkt@barnstead.com ISO 9001 REGISTERED