Summary of Contents for Thermo Electron 6540
- Page 1 Model 6540 and 6550 Series Thelco Oven Operating and Maintenance Manual 3177885 Rev. I Dated 05MAY06 Analyze • Detect • Measure • Control ™...
- Page 2 (36100120 [34001783]), manufacture location 8/03 Add temperature control range specification, page 3-4 11/01 Add “plastics can melt”, page 8 8/99 Updated for new kit #s, pages 12-14 6/99 Initial release ECR/ECN DATE DESCRIPTION Thermo Electron Corporation Thermo Electron Corporation 3177885 Thelco Oven...
- Page 3 Material in this manual is for information purposes only. The contents and the product it describes are subject to change without notice. Thermo Electron Corporation makes no representations or warranties with respect to this manual. In no event shall Thermo be held liable for any damages, direct or incidental, arising out of or related to the use of this manual.
- Page 4 EU Member State European Country, and this product should be disposed of or recycled through them. Further information on Thermo Electron’s compliance with this directive, the recyclers in your country and information on Thermo Electron products will be available at www.thermo.com.
- Page 5 Preface 3177885 Thelco Oven Thermo Electron Corporation Thermo Electron Corporation...
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Page 6: Table Of Contents
Periodic Safety Check ........7-6 Thermo Electron Corporation... - Page 7 Warranty ...........11-1 3177885 Thelco Oven Thermo Electron Corporation...
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Page 8: Introduction
Caution The benchtop, or other mounting surface, must be rigidly constructed and capable of comfortably supporting the unit weight. Do not mount this equipment on a flammable surface. Thermo Electron Corporation 3177885 Thelco Oven... -
Page 10: Unpacking And Damage
DO NOT — for any reason — return this unit without first obtaining authorization. In any correspondence to Thermo, please supply the nameplate data, including catalog number and serial number. Thermo Electron Corporation 3177885 Thelco Oven... -
Page 12: General Information
• Models 6540/6541, 6542/6543, and 6544 use an analog solid state temperature control with analog solid state safety thermostat. • Models 6545/6546, 6547/6548 and 6549 use a microprocessor control with digital set point, digital display and digital safety thermostat. -
Page 13: Section 3 General Information
• Indoor Use Only • Temperature: 5° to 40° C • Maximum Relative Humidity: 80% for temperatures to 22°C • Maximum Altitude 2000 meters Maximum performance is assured across the following temperature range: • 15ºC to 45ºC 3177885 Thelco Oven Thermo Electron Corporation... -
Page 14: Specifications
115V 3166782 3166784 3166787 3166789 230V 3166783 3166785 3166786 3166788 3166790 3166791 “* Door Open for 30 seconds ** Overall height includes vent cap and adjustable feet *** Spacing between shelves is 1-7/8” (48mm) Thermo Electron Corporation 3177885 Thelco Oven... - Page 15 115V 3166792 3166794 3166797 3166799 230V 3166793 3166795 3166796 3166798 3166800 3166801 “* Door Open for 30 seconds ** Overall height includes vent cap and adjustable feet *** Spacing between shelves is 1-7/8” (48mm) 3177885 Thelco Oven Thermo Electron Corporation...
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Page 16: Installation
It is critical that the added current demand (see nameplate) of this and other equipment used on the same circuit does not exceed the rating of the fuse or circuit breaker. Thermo Electron Corporation 3177885 Thelco Oven... - Page 17 To be in compliance with the National Electrical Code, non-standard plugs and receptacles are required to accommodate higher current draw. The aforementioned models are rated at 15.6 amps. 3177885 Thelco Oven Thermo Electron Corporation...
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Page 18: Explanation Of Controls
Explanation of Controls Section 6 Models 6540/6541, 6550/6551, 6542/6543, 6552/6553, 6544, and 6554 On/Off Switch - The on/off switch controls the flow of all electric power to the oven. The blower motor in the mechanically convected models will only be in operation with the power switch ON, and the timer not at setting "0". -
Page 19: Section 6 Explanation Of Controls
When the lamp is not illuminated, the oven is not heating and the length of running time can be selected in hour increments using the arrow buttons. Light On/Off - The Light ON/OFF switch operates the interior chamber lamp. 3177885 Thelco Oven Thermo Electron Corporation... -
Page 20: Operation
Never cover the shelves with foil or reduce their open surface area by more than 75%, this will greatly reduce convection and hence uniformity and control will suffer. Thermo Electron Corporation 3177885 Thelco Oven... - Page 21 HIGH LIMIT value selected is less than the previous SET POINT, the high limit alarm will sound until the oven cools to below the new HIGH LIMIT value. This is normal; press MUTE to silence the alarm. 3177885 Thelco Oven Thermo Electron Corporation...
- Page 22 Section 7 Section title Models 6540/6541, 6550/6551, 6542/6543, 6552/6553, 6544, and 6554 A mercury-in-glass thermometer is provided for the models listed above. Insert thermometer through the hole in the vent shutter cap so that the three metal fingers punched in the cap converge toward the center of the cap and the glass ring on the thermometer rests on top of the cap.
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Page 23: Loading
Warning Explosion, implosion or the release of toxic or flammable gases arising from material being heated is the sole responsibility of the user. 3177885 Thelco Oven Thermo Electron Corporation... -
Page 24: Cleaning
-Tartaric Acid -Sodium Hypochlorite Caution Do not use other cleaning or decontamination methods without first contacting the Technical Services department. Never use the following chemicals: -Aqua Regia -Ferric Chloride -Iodine -Sodium Azide -Sulfuric Acid Thermo Electron Corporation 3177885 Thelco Oven... -
Page 25: Periodic Safety Check
As soon as rust is loosened, immediately flush with clean water until all acid is removed. Periodic Safety Test the operation of the Hi-Limit thermostat, as described in Section 8, Check every three months. 3177885 Thelco Oven Thermo Electron Corporation... -
Page 26: Maintenance And Service
4. Make certain severe line voltage fluctuations are not occurring. 5. Make certain all wire connections are secure at their terminals. 6. Make certain that an intermittent failure of the switch, thermostat or wiring has not occurred. Isolate the cause; repair or replace. Thermo Electron Corporation 3177885 Thelco Oven... -
Page 27: Temperature Offset
The display should read "200". Press the SET button. 9. The oven is now calibrated. Turn oven power off and disconnect from power. Remove decade box and reconnect temperature sensor. 10. Close control panel and secure. 3177885 Thelco Oven Thermo Electron Corporation... -
Page 28: Heat Loss
Also, inspect all wires leading to the heater for signs of shorting or electrical contact to chassis of oven. Thermo Electron Corporation 3177885 Thelco Oven... -
Page 30: Parts Replacement
6. The chamber floor is now free. Pull forward and lift out. 7. Disconnect heater leads. 8. Remove heater leads and connector from the opening in control panel. 9. Replace heater leads by reversing these steps. Thermo Electron Corporation 3177885 Thelco Oven... -
Page 31: Probe Replacement
2. Open control panel by removing top screws which secure it and disconnect leads to control pcb. 3. Remove adjustment knob from potentiometer shaft. 4. Remove control pcb from standoffs. 5. Replace with new control PCB. 6. Reinstall in reverse order. 3177885 Thelco Oven Thermo Electron Corporation... -
Page 32: Control Replacement (Digital Models)
4a. Reassemble in reverse order. 1b. Replace door handle by removing inner door liner, door gasket and door insulation. 2b. Remove nuts which secure door handle and replace handle. 3b. Reassemble in reverse order. Thermo Electron Corporation 3177885 Thelco Oven... -
Page 33: Door Latch Grabber (On Body Of Oven)
2. Remove screws which secure door latch grabber and remove from front. Note Used retaining nuts will fall into oven body. 3. Insert replacement latch assembly through open slot and fasten with screws and washer provided. 3177885 Thelco Oven Thermo Electron Corporation... - Page 34 Cord and Plug Set 3176562 Cord Set 14GA 3176559 Line Cord 220V 3 Conductor 3177386 Vent Shutter Cap 3164520 Door Handle 3164521 Door Handle 3167037 Latch Replacement Kit 3172450 Mains Fuse (230V) 3179482 Power Cord (230V) Thermo Electron Corporation 3177885 Thelco Oven 10-1...
- Page 35 Fuse Kit 1/4A 250V (115V) 3175930 Fuse FST 6.3x32 63mA (230V) 3175897 Blower Wheel 3166987 Motor Assembly (115V) 3167015 Motor Assembly (230V) 3176726 Wiring Harness 3176736 Interface Cable 3162397 Bottom Plate, Mechanical 3162398 Bottom Plate, Gravity 10-2 3177885 Thelco Oven Thermo Electron Corporation...
- Page 36 RTD Assembly, 1000 0HM Accessory List - Thelco Oven Model 130M 160M Part Number Description 3175130 Bulb, 40W 120V 3175131 Bulb, 50W 230V 3175996 Thermometer 0-250°C RS-232 Interface Kit 3166245 (Digital Models Only) Thermo Electron Corporation 3177885 Thelco Oven 10-3...
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Page 38: Electrical Schematics
INDICA T O R HIGH LIMIT INDICA T O R HEATER CONNECTION HR1-3 HR1-1 FOR 115 V. HR1-2 HEATER CONNECTION HR1-3 FOR 230 V. HR1-1 HR1-2 CONTROL CIRCUIT DIAGRAM THELCO ANALOG OVENS MECHANICAL AND GRAVITY 391202 Thermo Electron Corporation 3177885 Thelco Oven 11-1... - Page 39 THELCO ANALOG OVENS PART NO. ENGINEER 12-6-93 34247439 MECHANICAL AND GRAVITY 1100 MATERIAL: 34247440 1600 32.5 SEE PARTS LIST SHEET 1 0F 1 DWG. NO. REV. 34247441 SIZE 1900 27.2 383202 FINISH: SCALE NONE 11-2 3177885 Thelco Oven Thermo Electron Corporation...
- Page 40 FOR 115 V. HR1-2 HEATER CONNECTION HR1-3 FOR 230 V. HR1-1 HR1-2 DWG. TITLE CONTROL WIRING DIAGRAM THELCO DIGITAL OVENS MECHANICAL AND GRAVITY REV. SHEET 1 OF 1 DWG. NO. SIZE SCALE FULL Thermo Electron Corporation 3177885 Thelco Oven 11-3...
- Page 44 At Thermo's option, all non-conforming p art s must be returned to Thermo Electron Corporation post age p aid and replacement p art s are shipped FOB destination. THIS W ARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER W ARRANTIES, WHETHER WRITTEN, ORAL OR IMPLIED.
- Page 45 THERMO ELECTRON CORPORATION INTERNATIONAL DEALER WARRANTY The W arranty Period st art s two months from the date your equipment is shipped from our facility . This allows for shipping time so the warranty will go into ef fect at approximately the same time your equipment is delivered. The warranty protec- tion extends to any subsequent owner during the first year warranty period.
- Page 46 Thermo Electron Corporation Controlled Environment Equipment 401 Millcreek Road Marietta, Ohio 45750 United States www.thermo.com...
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