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Troubleshooting
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Summary of Contents for Thermo Scientific BF51841C
- Page 2 This document is not part of any sales contract between Thermo Fisher Scientific Inc. and a purchaser. This document shall in no way govern or modify any Terms and Conditions of Sale, which Terms and Conditions of Sale shall govern all conflicting information between the two documents. Heratherm Thermo Scientific...
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Page 3: Table Of Contents
Setting the Temperature....................6-4 Setting the Over Temperature Protection (OTP) Temperature.......... 6-4 Changing between Celsius and Fahrenheit............... 6-4 Setting the Ramp to Setpoint Rate..................6-5 Auto Tuning the Controller....................6-6 Corrosion of Temperature Overshoot................6-7 Thermo Scientific... - Page 4 Chapter 10 Troubleshooting ......................10-1 Chapter 11 Replacement Parts....................... 11-1 Chapter 12 Error Codes ........................12-1 Chapter 13 WEEE Compliance......................13-1 Chapter 14 Spare Parts and Accessories ..................14-1 Chapter 15 Device Log........................15-1 Chapter 16 Contact .......................... 16-1 Thermo Scientific...
- Page 5 Figure 9 Thermocouple ....................... 9-5 Figure 10 Door Insulation ......................9-6 Figure 11 Door Insulation Replacement ..................9-7 Figure 12 Door Hinge (Sheet 1/2) ....................9-8 Figure 12 Door Hinge (Sheet 2/2) ....................9-9 Figure 13 Wiring Diagram......................11-3 Thermo Scientific...
- Page 6 List of Figures Thermo Scientific...
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Page 7: Chapter 1 Safety Notes
• Keep these operating instructions close to the Box Furnace so that safety instructions and important information are always accessible. • Should you encounter problems that are not detailed adequately in these operating instructions, please contact Thermo Fisher Scientific immediately for your own safety. Thermo Scientific... -
Page 8: Explanation Of Safety Information And Symbols
Indicates a situation which, if not avoided, could result in damage to equipment or property. Is used for useful hints and information regarding the application. Additional Symbols for Safety Information Wear safety gloves! Wear safety goggles! Harmful liquids! Electrical shock! Hot surfaces! Thermo Scientific... -
Page 9: Safety Consideration
Before using, user shall determine the suitability and integrity of the product for the intended use and that the unit has not been altered in any way. Misapplication may compromise the safety of the end user or the life of the product. Thermo Scientific... -
Page 10: Warranty
• The Laboratory Box is not modified, • Only original spare parts and accessories that have been approved by Thermo Scientific are used (third-party spares without Thermo Scientific approval void the limited warranty), • Inspections and maintenance are performed at the specified intervals, •... -
Page 11: Material Safety Data Sheet
Inhalation: May cause irritation or soreness of throat and nose. Extreme expo sure may produce coughing, congestion, and even difficulty breathing. Pre-existing medical conditions may be aggravated by exposure: e.g. bronchitis, emphy- sema, and asthma. Thermo Scientific... - Page 12 In a multiple dose study in rats, statistically significant increases in lung tumors were observed following exposure to the highest doses; there were no excess lung cancers at lower doses. Thermo Scientific...
- Page 13 (Example: 3M 7800 with 7255 filters) 25-50 f/cc Full face, supplied air respirator operated in positive pressure mode (Example: 3M 7800 with W9435 hose and W3195 regulator) f/cc = Fibers per cubic centimeter HEPA = High-efficiency particulate air filter. Thermo Scientific...
- Page 14 Waste Disposal: Wastes generated during use or demolition are not hazardous wastes as defined by 40 CFR 261. Transportation, storage, and dis- posal of this product must comply with Federal, State and Local regu- lations. Thermo Scientific...
- Page 15 XII. INGREDIENTS / HEALTH HAZARD INFORMATION COMPONENT LIMITS CAS NO. EXPOSURE LIMITS Refractory Ceramic Fiber 142844-00-6 40-95 .5 Fiber/cc Guideline-RRC* 3-Nuisance 5 mg/M Respir – OSHA 3- Nuisance Total – ACGIH* 10 mg/M Amorphous Silica 7631-86-9 0-60 6 mg/M' (total) PEL Thermo Scientific...
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Page 16: Product Safety Information
• May cause temporary irritation to eyes, skin, and respiratory tract PRECAUTIONARY MEASURES: • Minimize airborne fibers with engineering controls. • Use NIOSH/MSHA approved respiratory as required (see MSDS). • Wear long sleeved, loose-fitting clothing, eye protection, and gloves 1-10 Thermo Scientific... -
Page 17: Standards And Directives
CONSULT MSDS FOR ADDITIONAL PRODUCT INFORMATION AND HANDLING INSTRUCTIONS. REX ROTD CORPORATION P.O. BOX 980 FOWLERVILlE, MI 48836 517/223-3787 Standards and Directives The Laboratory Box Furnaces complies with the following standards and guidelines: • Current/Approved Agency standards (Underwriters Laboratory/CSA/CE). Thermo Scientific 1-11... - Page 18 Safety Notes Standards and Directives 1-12 Thermo Scientific...
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Page 19: Chapter 2 Introduction
• Patented LGO (light gauge overbend) heating elements transfer radiant heat energy to the work chamber and load efficiently and economically. • Replaceable hearth plates and shelves. • Digital control with adjustable parameters. • Main power ON/OFF switch and power indicator on control panel. Thermo Scientific... -
Page 20: Specifications
Watts Thermoco Voltage Integral Shipping WXF-BXH in.(cm) Operating uple Control Weight Temp lbs (kg) Cham Exterior Shipping (Approxim ate) BF51841C 15x15 29x28x33 30x34x31 1200 °C 5800 Type PL II 208/240 Single BF51841BC (73.6x71.1 (6835x78. setpoint (127) (38.1x x83.8) 6x71) 50/60 Hz 38.1x3... - Page 21 Unpacking Unpacking Carefully unpack and inspect your furnace for damage. If the product is damaged, report it to the appropriate carrier and retain packing materials. Retaining all packing materials and documentation is essential in any damage claims filed. Thermo Scientific...
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Page 22: Chapter 3 Unpacking Unpacking
Unpacking Unpacking Thermo Scientific... -
Page 23: Chapter 4 Installation
Red is always negative. Refer Figure 2. “Thermocouple”. 6. As a final inspection step, check that all electrical connections are secure and verify that the door stop bracket properly contacts the power interrupt switch Thermo Scientific... -
Page 24: Gas Inlet Tube
3. Insert the ceramic tube end through the access hole in the rear of the furnace and guide the tube into the back of the chamber. 4. Align the mounting holes in the rear housing panel with the holes in the gas inlet tube assembly and secure the assembly with the mounting screws. Thermo Scientific... -
Page 25: Figure 3 Gas Inlet Tube Assembly
900 °C for one hour. Do this regularly, whenever the chamber interior shows signs of carbon residue. Do not scrub or scrape the chamber surfaces, this may damage the heating elements and the insulation. Thermo Scientific... -
Page 26: Hearth Plate Information
1. Model series BF51731 and BF51732 are supplied with a pair of half-depth shelves. 2. One or both of these shelves can be installed into the chamber using the single groove at the mid-point on each side wall Figure 5. BF51731 and BF51732 Chamber Showing Shelf Groove Thermo Scientific... -
Page 27: Figure 6 Bf51841 And Bf51842 Chamber Showing Shelf Groove
3. Model series BF51841 and BF51842 are supplied with a pair of half-depth shelves. 4. One or both of these shelves can be installed into the chamber using any of the three groove sets near the mid-point on each side wall. Figure 6. BF51841 and BF51842 Chamber Showing Shelf Groove. Thermo Scientific... - Page 28 Installation Shelf Installation in Box Furnaces Thermo Scientific...
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Page 29: Chapter 5 Operation
The vent provided at the top of the furnace is designed to help remove contaminants from the furnace chamber. Whenever high amounts of contaminants, (smoke, chemical vapors, etc.) are present, the vent should be opened to aid in prolonging heating element life. Thermo Scientific... -
Page 30: Atmosphere Port
The front panel is similar to the UT150 temperature control panel (Refer to Figure “Heating Unit Replacement”). For detailed instructions, refer to Section “Excess Temperature Option”. Thermo Scientific... -
Page 31: Chapter 6 Operation - Ut150 Controller
Before reconfiguring the controller, read this chapter and the UT150 operation manual. Reconfiguring the controller can change the unit characteristics and design parameters, which can hamper performance and make the equipment dangerous to use. Thermo Scientific... -
Page 32: Normal Controller Operation
1225.0 Alarm Setpoint (°C,2237 °F) Control mode Auto tuning 20.0 Proportional band (°C, °F=16.2) Integral time Derivatives time Heat cycle time Sensor filter PV bias (offset) Key loc Setup parameter (access by setting LoC = “-1”) Thermo Scientific... - Page 33 Use the Down Arrow button to decrease the temperature setpoint dis- play and to change parameter values in the Operation and Setup Parameter menus. Whenever you change the value of a setpoint or parameter, the decimal point flashes to remind you to register the changed value with SET/ENT. Thermo Scientific...
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Page 34: Setting The Temperature
Setup Parameters menu (Refer to Table 2. “UT150 Parameter Function”). 4. The first setup parameter displayed is Input Type (In). Press to change its value from 14 to 44. After making this adjustment (and all following parameter Thermo Scientific... -
Page 35: Setting The Ramp To Setpoint Rate
SET/ENT button. 3. Press the down arrow button to show “1”, and press SET/ENT once to enter the Setup Parameters menu. 4. Press and release SET/ENT until the Upr parameter is on the upper display. Thermo Scientific... -
Page 36: Auto Tuning The Controller
4. Press and release SET/ENT to show the At parameter. 5. Press and release the arrow buttons show “ON” in the lower display. 6. Press SET/ENT once to enter the auto tune mode and exit the Operating Parameters menu. Thermo Scientific... -
Page 37: Corrosion Of Temperature Overshoot
This method allows the autotune to correct for overshoot of the temperature overshoot. As the furnace heats to the setpoint, the autotune will begin when the measured temperature (PV) equals the setpoint and follows the three cycles described above. Thermo Scientific... - Page 38 Correction of Temperature Overshoot Thermo Scientific...
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Page 39: Chapter 7 Excess Temperature Option
This time indicates when the chamber temperature exceeded the Excess Temperature setpoint. 2. Peak Exceeded Temperature The Peak Exceeded Temperature is the highest temperature measured by the Excess Temperature Controller. Thermo Scientific... -
Page 40: Operating Parameters
SET/ENT button is pressed and released, with the “tIn” or “HI” in the top display. These values will be erased from the display and memory when the “up arrow/reset” button is pressed during their respective display (add the “EXCEEDED” indicator is off). Thermo Scientific... - Page 41 A source failure (indicated with “0.0” in the upper display) will cause “OUT” illuminated. A power failure, in some instances causes “OUT” to be illuminated. As lost as the “EXCEEDED” indicator is extinguished, the UT150L can be reset with press and hold of “UP ARROW/RESET” button. Thermo Scientific...
- Page 42 Excess Temperature Option(“B” Model) Excess Temperature Controller Operation Thermo Scientific...
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Page 43: Chapter 8 Communication Option
Assure lower value at “ø”. Press the down arrow to show “-1” in the lower display and press SET/ENT to acknowledge and enter the Setup Parameter menu. 2. Press and release the SET/ENT button to access the six parameters specific to communication option. Thermo Scientific... -
Page 44: Software Installation
“Start Scan” button. 8. The SpecView program scans all 99 possible controller addresses and places a representative “Instrument View” of the temperature controller on the PC Screen for each controller found connected to PC. The factory-set addresses Thermo Scientific... -
Page 45: Communications Test
“PAR” button. A window opens that lists the controller parameters. Each parameter can be changed by selecting it and clicking on the “Alter" button. Select the “Close” button. Make no changes at this time. This concludes the initial software diagnostics. Thermo Scientific... -
Page 46: Troubleshooting
SET/ENT for 3 seconds. 3. Press and release SET/ENT repeatedly until the upper display reads LoC. 4. Press until the displayed value of LoC is - 1, then press SET/ENT to access the Setup Parameters menu. Thermo Scientific... - Page 47 6. Press and hold SET/ENT for 3 seconds to exit the Setup Parameters Menu. Loss of power to the Excess Temperature Controller will not change the setpoint or hysteresis value. However, the last recorded Exceeded Temperature Duration Time and peak Exceeded Temperature will be lost. Thermo Scientific...
- Page 48 Communication Option Addresses for Multiple Controllers Thermo Scientific...
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Page 49: Chapter 9 Maintenance
Maintenance should only be performed by trained personnel. Disconnect furnace from main power before attempting any maintenance to furnace or its controls. Before maintaining this equipment, read the applicable MSDS (Material Safety Data Sheets) in the safety notes. Thermo Scientific... -
Page 50: Heating Elements
After prolonged use, hairline cracks may develop in the insulating materials. Minor cracks will not affect furnace performance. Care should be taken when working with or handling the heating units, as the ceramic fibers and dust particles are a possible eye/skin/lung irritant. Refer Section “Safety Notes”. Thermo Scientific... -
Page 51: Heating Unit Replacement
5. A gasket made of ceramic fiber blanket is located between the two heating units. This material should be retained and used with the replacement heating units. 6. Install the replacement heating units in the frame and reverse the above procedure to reassemble the furnace. Thermo Scientific... -
Page 52: Thermocouple (T/C) Replacement
Maintenance Thermocouple (T/C) Replacement Figure 8. Heating Unit Replacement Thermocouple (T/C) Replacement To replace the thermocouple: 1. Disconnect power to the furnace. Thermo Scientific... -
Page 53: Solid State Relay (Ssr) Replacement
3. Note positions of the wires on the SSR. Disconnect the wires and remove outer screws. Remove the heatsink and SSR from the furnace. 4. Remove the SSR from the heat sink. Replace with the new SSR and reverse the above procedure for reassembly. Thermo Scientific... -
Page 54: Door Insulation Replacemen
3. Loosen the screws holding the upper and lower door insulation brackets in place. The screws do not need to be removed. 4. Pull the door insulation out of the support brackets. Insert new insulation and reassemble the support brackets. Figure 10. Door Insulation Thermo Scientific... -
Page 55: Figure 11 Door Insulation Replacement
Maintenance Door Insulation Replacement Figure 11. Door Insulation Replacement Thermo Scientific... -
Page 56: Right Hand Door Conversion
4. Check alignment of the door insulation with the chamber. Sideways adjustment can be made by loosening the door insulation supports and moving the insulation plug. Vertical adjustment can be made by placing or removing spacers on the door hinge. Figure 12. Door Hinge (Sheet 1/2) Thermo Scientific... -
Page 57: Figure 12 Door Hinge (Sheet 2/2)
Maintenance Right Hand Door Conversion Figure 12. Door Hinge (Sheet 2/2) Thermo Scientific... -
Page 58: Overtemperature Alarm Protection
3. Observe the unit closely until the load alarm trips, indicated on the controller beside the A1 label. 4. Reset the main temperature control to normal operating temperature. Once the unit cools below the alarm setpoint, the A1 indicator will go off. 9-10 Thermo Scientific... -
Page 59: Chapter 10 Troubleshooting
The controller displays do The furnace Is not con- Check furnace connection to power not illuminate. nected to the power source Main switch is defective Replace power switch or controller Fuse(s) Blown Replace fuse(s) and verify power con- nections Thermo Scientific 10-1... - Page 60 Allow load ample time to reach equilib- time rium Intermittent failure of Verify wiring connection switch, controller, limit switch, or wiring Temperature Offset. Controller degradation Offset or bias the controller and / or and/or sensor degradation replace the sensor 10-2 Thermo Scientific...
- Page 61 Replacement Parts Model BF51841C, Box Furnace , 1200 °C Description Item BF51841C-1 BF51841BC-1 Heater-Chamber, top or 300880H01 bottom Hearth Plate 300807H01 Shelf, half-depth 7221-2067-001 Exhaust Port Cover 7221-2063-00A Gas Inlet Assembly 300253G02 S Thermocouple, Single 7299-1104-00B S Thermocouple , Double...
- Page 62 Door Bracket for Trailing 301665G01 Cab.Bracket, Trailing Arm 301665G01 Cab.Bracket, Trailing Arm 301665G02 For optional right hand door swing Operation Manul 304259H01 Wiring Diagram 304258I01 On the next page is a wiring diagram for all BF51841 models. 11-2 Thermo Scientific...
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Page 63: Figure 13 Wiring Diagram
Replacement Parts Figure 13. Wiring Diagram Thermo Scientific 11-3... - Page 64 Replacement Parts 11-4 Thermo Scientific...
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Page 65: Chapter 12 Error Codes
Error Codes This chapter is not applicable. Thermo Scientific 12-1... - Page 66 Error Codes 12-2 Thermo Scientific...
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Page 67: Chapter 13 Weee Compliance
Ce pmduit doit &re conforme 1 la directive europtenne (2002/96EC) des Dkchets d'Equipements Electriques et Electroniques (DEEE). I1 est merqui par le symbole suivant. Thermo Scientific s'est associi avec une ou plusieurs compagnies de recyclage dans chaque ttat membre de l'union europtenne et ce produit devrait &re collect6 ou recyclt par celles-ci. - Page 68 WEEE Compliance 13-2 Thermo Scientific...
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Page 69: Chapter 14 Spare Parts And Accessories
Spare Parts and Accessories This chapter is not applicable. Thermo Scientific 14-1... - Page 70 Spare Parts and Accessories 14-2 Thermo Scientific...
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Page 71: Chapter 15 Device Log
Device Log Laboratory Box Part number: Furnaces Serial number: Service number: Location Operator’s note: Work carried out Notes Date Signed: Thermo Scientific 15-1... - Page 72 Device Log 15-2 Thermo Scientific...
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Page 73: Chapter 16 Contact
Enquiries from Europe, Middle East and Africa: Phone. + 49 (0) 6184 / 90-6940 + 49 (0) 6184 / 90-6772 E-Mail info.labequipment.de@thermofisher.com Postal address USA: Thermo Scientific 275 Aiken Road Asheville, NC 28804 Enquiries from North America: Phone +1 800-879 7767 +1 828-658 0363 E-Mail info.l abequipment@thermofisher.com... - Page 74 Contact Enquiries from Asia Pacific: Phone +852-2711 3910 +852-2711 3858 E-Mail info.labequipment@thermofisher.com 16-2 Thermo Scientific...
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