Related Manuals for Thermo Scientific Sorvall T3
Summary of Contents for Thermo Scientific Sorvall T3
- Page 1 Sorvall T3 RT3 Service Manual 120V/230V Service Manual 11290099 page 1 of 44 Analyze • Detect • Measure • Control™...
- Page 2 T3 / RT3 SORVALL Centrifuges SERVICE MANUAL 11290099 CAREFULLY READ THIS MANUAL AND THE OPERATING MANUAL BEFORE REPAIRING YOUR INSTRUMENT THIS DOCUMENT IS PROPERTY OF THERMO FISHER SCIENTIFIC it may not be duplicated or distributed without the owner's authorisation The validity of the guarantee is subject to the observation of the instructions and precautions described in this document Service Manual 11290099 page 2 of 44...
- Page 3 REVISION STATUS INDEX DATE AMENDED PAGES NOTES 19/02/07 Initial release 05/07/07 P 40 Modification of cooling system part numbers 30/01/08 Branding change Service Manual 11290099 page 3 of 44...
- Page 4 WARRANTY THERMO FISHER SCIENTIFIC guarantees that this unit is free from defects in materials and workmanship when it leaves the factory and undertakes to replace or repair the unit if it proves defective in normal use or during service for a period of ONE YEAR from the delivery. Our liability under the guarantee is limited to repairing the defective unit or any part of the unit providing it is sent, postage paid, to an authorized service centre or the SAINT-HERBLAIN office.
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Page 5: Table Of Contents
CONTENTS INTRODUCTION ........................7 1.1. PURPOSE............................. 7 1.2. PRESENTATION ........................7 SPECIFICATIONS........................... 8 1.2.1. Dimensions and weight ..........................8 1.2.2. Electrical Specifications...........................8 1.2.3. Performance .............................8 1.3. INSTALLATION PROCEDURE....................9 THEORY OF OPERATION ....................10 2.1. DESCRIPTION.......................... 10 2.2. COMPONENT LAY-OUT......................10 2.3. - Page 6 CONTENTS 4.6. ELECTRONIC BOARD REPLACEMENT ................30 4.6.1. Microprocessor + Power pcb........................30 4.6.2. Display board ............................30 4.7. GAS SPRING REPLACEMENT ..................... 31 4.8. EPROM REPLACEMENT....................... 32 4.9. LID REPLACEMENT ......................32 4.10. REFRIGERATION SYSTEM REPAIRS (RT3) ..............33 4.10.1. Refrigeration SYSTEM replacement....................33 4.10.2.
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Page 7: Introduction
The gas used in the refrigeration system (RT3) is R130a, without CFC, recommended by the applicable directive for protection of the ozone layer. Sorvall T3 and Sorvall RT3 operator panel overlay. Service Manual 11290099 page 7 of 44... -
Page 8: Specifications
SPECIFICATIONS 1.2.1. DIMENSIONS AND WEIGHT Dimensions (H x W x D) SORVALL T3 : 43 x 58 x 69 cm SORVALL RT3: 43 x 85 x 69 cm Packed (H x W x D) SORVALL T3 : 58 x 78 x 69 cm SORVALL RT3: 58 x 105 x 69 cm Weight –... -
Page 9: Installation Procedure
1.3. INSTALLATION PROCEDURE IMPORTANT: at least two people are required to lift the centrifuge from the palette and place it on the bench. Incorrect installation will affect safety and equipment performances. The machine must be installed in a dust and non corrosive environment. 1. -
Page 10: Theory Of Operation
2. THEORY OF OPERATION 2.1. DESCRIPTION The microprocessor system which controls the SORVALL T3 and SORVALL RT3 centrifuges ensures the operation of the following major elements : - Management of the operating modes, - Generation of alternating current amplitude and frequency,... - Page 11 Service Manual 11290099 page 11 of 44...
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Page 12: Motor Control Principle
2.3. MOTOR CONTROL PRINCIPLE 2.3.1. INTRODUCTION The SORVALL T3 / SORVALL RT3 family of centrifuges is fitted with an asynchronous 3 phase motor. During centrifugation, the microprocessor generates a system of sinusoidal 3 phase voltages variable in amplitude and frequencies. During the braking phase the energy from the rotating parts is commuted across a resistance. -
Page 13: Power Control
2.3.3. POWER CONTROL It is necessary to supply, from a single phase mains supply (230 V - 50 Hz or 120 V - 60 Hz), three variable tensions with amplitude and with frequency, dephased by 2π/3. The voltage is rectified then filtered by C to supply the constant voltage +E. The value of the capacitor C is high. - Page 14 To vary the speed, it is necessary to vary NS and thus the frequency of the voltage supplied to the motor. The torque characteristics will be translated on the speed axis. The supply voltage will vary from O to 4000 r.p.m. in order to keep the U/f ratio constant and not saturate the magnetic circuit. Couple Torque Couple...
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Page 15: Electronics - Structure
2.4. ELECTRONICS - STRUCTURE 2.4.1. INTRODUCTION The electronic part of the apparatus consists of two boards : the microprocessor + power pcb, where every function is located and the user interface pcb with display, and LEDs. The former is located inside the body of the machine, the second behind the front panel. The electronic imbalance sensor is located on the motor stabilizer and allows the detection of excessive imbalance due to the rotor loading. -
Page 16: Imbalance Sensor
ZONE 3 WARNING : THIS ZONE IS AT MAINS VOLTAGE This zone, isolated from the microprocessor part by opto-couplers, is the electronic part related to the power in the system. This zone includes : - The 15 VDC power supply for the control electronics for this zone. - The control circuit of the 6 basic signals of the IGBT module. -
Page 17: Input - Output
2.4.7. INPUT - OUTPUT Termal probe Tachy hall Temp. motor Alim. 24 Switch electro Switch lock Electro Order goup Sector power Diodes version 120V Service Manual 11290099 page 17 of 44... -
Page 18: Diagnostics And Repairs
3. DIAGNOSTICS AND REPAIRS 3.1. INTRODUCTION The SORVALL T3 and SORVALL RT3 are equipped with a diagnostic menu in order to help locate possible breakdowns. The possible conditions of malfunction are communicated to the user by means of error codes on the display and buzzer alarms. - Page 19 Test 1 : Miscellaneous test 5 digit display : speed read 3 digit display : T-1 for Test 1 2 digit display : actual temperature Tachometer test : Turn the rotor by hand : the speed should appear on the 5 digit display. Lid solenoid test : Press on the key corresponding to program 2 to power and/or release the solenoid.
- Page 20 Test 3 : Statistical analysis Press Δ and ∇ to scroll on the 5 digit display 1 : running hours total (x 100) 2 : total number of runs 3 : number of hours above 5000 rpm 4 : number of runs above 5000 rpm - Press START key to go back to test 1 - Press STOP key to exit from the test mode Service Manual 11290099...
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