Related Manuals for VERDER CARBOLITE GERO BLF 16/3
Summary of Contents for VERDER CARBOLITE GERO BLF 16/3
- Page 1 Installation, Operation and Maintenance Instructions 1600°C Bottom Loading Furnace - BLF Model: 3 Litres No Controller BLF 16/3 + No Controller MEN-BLF1603-003_NOCTRL (29-10-2021)
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Page 2: Table Of Contents
Contents This manual is for guidance on the use of the Carbolite Gero product specified on the front cover. This manual should be read thoroughly before unpacking and using the furnace or oven. The model details and serial number are shown on the back of this manual. - Page 3 Safety Warning - Refractory Fibre Insulation Solid-state Relay Replacement Temperature Controller Replacement Fuse Replacement Thermocouple Replacement Element Protection Tube Option Replacement Procedure Insulation Replacement Element Fitting and Replacement 7.0 Fault Analysis Furnace Does Not Heat Up Product Overheats 8.0 Wiring Diagrams 01964-5001 9.0 Fuses and Power Settings Fuses...
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Page 4: Symbols And Warnings
1.0 Symbols and Warnings Switches and Lights Instrument switch: when the instrument switch is operated the temperature control circuit is energised. Heat light: the adjacent light glows or flashes to indicate that power is being supplied to the elements. General Warnings DANGER –... -
Page 5: Prerequisites To Use
1.3 Prerequisites to Use Prior to the commissioning and use of this product, all personnel involved in its installation, operation and maintenance must be deemed competent and have: Read and understood the information contained within this manual Received the relevant training with regard to safety and operation of the product Been provided with the appropriate PPE (Personal Protective Equipment) required for the safe operation of this product Note: The customer is responsible for ensuring that all of the above conditions are... -
Page 6: Installation
2.0 Installation Unpacking and Handling When unpacking and handling the product, always lift it by its base. Do not use the door or any other projecting cover or component to support the equipment when moving it. Use two or more people to carry the product where possible. Carefully remove any packing material from inside and around the product before use. - Page 7 Depending on the application of the product, it may be appropriate to position it under an extraction hood. Ensure the extraction hood is switched on during use. Ensure that the product is placed in such a way that it can be quickly switched off or disconnected from the electrical supply.
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Page 8: Tie Wrap Removal Instructions
Tie Wrap Removal Instructions The motor powered arm that operates the hearth movement has been fixed in place for transit. Please ensure the plastic tie wrap used to fix the arm is removed before operation. 1. Remove the back panel of the furnace. 2. -
Page 9: Fitting The Chimney And Heating Elements
2.4 Fitting the Chimney and Heating Elements Please refer to the Element Installation and Replacement in section 6.0. Wear eye protection when handling the heating elements. The silicon carbide elements are EXCEPTIONALLY FRAGILE and are packed separately, together with other items shown in the list. Separately Packed Items Elements Braids*... -
Page 10: Electrical Connections
Connect the aluminium braids securely as indicated in the element installation instructions. Electrical Connections Connection by a qualified electrician is recommended. The product covered by this manual normally requires a single phase A.C. supply, which may be Live to Neutral non-reversible, Live to Neutral reversible or Live to Live. Some models may be ordered for 3-phase use, which may be with or without neutral. - Page 11 3-phase L1 Black to phase 1 Black to phase 2 Black to phase 3 Light Blue to neutral (if fitted) Green/ Yellow to earth (ground) DO NOT connect a product ordered for three phase use to a single phase supply or to the wrong type of three phase supply.
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Page 12: Temperature Controller
3.0 Temperature Controller If this product is fitted with a temperature controller, instructions are provided separately. -
Page 13: Operation
4.0 Operation Operating Cycle This product is fitted with an instrument switch which cuts off power to the control circuit. Connect the product to the electrical supply. The cooling fans should automatically operate. The furnace is fitted with a pair of gates that have a safety switch. the hearth can only be lowered or raised if the gates are closed. -
Page 14: Atmospheres & Corrosive Materials
When heating large objects, in particular poor conductors, avoid shielding the thermocouple from the heating elements. The thermocouple is intended to sense the temperature near the heating elements. However, if a large object is placed in the chamber it may record the average temperature of the object and the elements, this can lead to overheating of the elements. -
Page 15: Operator Safety
Operator Safety This product incorporates a safety switch which interrupts the heating element circuit when the furnace is opened. This prevents the operator touching a live heating element and also prevents the product from heating up if the furnace is left open. The operation of this switch should be checked periodically. -
Page 16: Inverted Crucible Option
Failure to check the thermocouple regularly may result in overheating of the work and the furnace, with consequential damage to both. (2) The thermocouples fitted to these models give very low outputs below approximately 600 °C and do not give accurate readings at low temperatures. They may show a negative temperature when the furnace is started from cold. -
Page 17: Maintenance
5.0 Maintenance General Maintenance Preventive rather than reactive maintenance is recommended. The type and frequency depends on the product use; the following are recommended. Maintenance Schedule CUSTOMER QUALIFIED PERSONNEL DANGER! ELECTRIC SHOCK. Risk of fatal injury. Only electrically qualified personnel should attempt these maintenance procedures. Frequency Maintenance Method... - Page 18 Function Tested using certified equipment, frequency Temperature Calibration dependent on the standard required Check that all functions are working nor- Operational Check mally Thorough inspection and report incor- Operational Check porating a test of all functions Performance Element Circuit Electrical measurement Measure the current drawn on each phase / Power Consumption circuit...
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Page 19: Cleaning
5.2.1 Cleaning Soot deposits may form inside the furnace, depending on the process. At appropriate intervals remove these by heating as indicated in the General Operation Notes. The product's outer surface may be cleaned with a damp cloth. Do not allow water to enter the interior of the case or chamber. Do not clean with organic solvents. - Page 20 Note: A clamp meter should be used when adjusting the power limit to ensure that the current is not inadvertently increased beyond safe limits. Please contact Carbolite Gero Service for guidance on safe current limits. If the product does not reach temperature, or is slow, check the power limit setting and increase the value by 5%.
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Page 21: Repairs And Replacements
6.0 Repairs and Replacements Safety Warning - Disconnection from Power Supply Immediately switch the product off in the event of unforeseen circumstances (e.g. large amount of smoke). Allow the product to return to room temperature before inspection. Always ensure that the product is disconnected from the electrical supply before repair work is carried out. -
Page 22: Solid-State Relay Replacement
Solid-state Relay Replacement Disconnect the product from the power supply and remove the appropriate cover as given above. 1. Make a note of the wire connections to the solid state relay, then disconnect them. 2. Remove the solid state relay from the base panel or aluminium plate. 3. -
Page 23: Element Protection Tube Option Replacement Procedure
Element Protection Tube Option Replacement Procedure Ensure the furnace is cold and isolated from the electrical connection. On the underside of the front cowl is a stainless steel mesh, which should be removed for access to the underside of the furnace. You will see three crescent shaped stainless steel brackets which will support the protection tube once in place;... -
Page 24: Element Fitting And Replacement
Element Fitting and Replacement See section 6.2 - wearing a face mask is required. Replacements: see section 5.6. If at any time the power limit has been increased, reset it to its original value (see section 9.0 at the back of this manual for the original value). New elements must not be mixed with aged elements. - Page 25 Remember that the elements are fragile and expensive and that they can be damaged by contamination; handle them with care and keep them clean. Replacements: make a note of the actual braid and cable connections to the elements. Disconnect the braids or cables and carefully withdraw each element. New furnace: The diagrams indicate the connections, but the number and positions of terminal blocks may differ from those shown.
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Page 26: Fault Analysis
7.0 Fault Analysis Furnace Does Not Heat Up The HEAT The heating element Check also that the SSR is light is ON has failed working correctly The HEAT The controller shows a The thermocouple has broken or light is very high temperature has a wiring fault or code such as S.br The controller shows a... -
Page 27: Product Overheats
Product Overheats Product only heats The controller up when the shows a very high The controller is faulty instrument switch is temperature The thermocouple may be The controller faulty or may have been shows a low removed out of the heating temperature chamber The thermocouple may be... -
Page 28: Wiring Diagrams
8.0 Wiring Diagrams 01964-5001... -
Page 29: Fuses And Power Settings
9.0 Fuses and Power Settings Fuses F1 to F3 - Refer to the circuit diagrams. Fitted if supply cable fitted. Internal 38 mm x 10 mm type F fitted on Supply Fitted on board to some types EMC filter circuit board(s) Fuses of EMC filter. -
Page 30: Specifications
10.0 Specifications Carbolite Gero reserves the right to change the specification without notice. Approx. Chamber Size (mm) Max Temp Max Power Net Weight Capacity Model (°C) (kW) (kg) Height Diameter Bottom Loading Furnaces heated by Silicon Carbide elements, with electrically operated hearth. - Page 31 Notes Service Record Engineer Name Date Record of Work...
- Page 32 The products covered in this manual are only a small part of the wide range of ovens, chamber furnaces and tube furnaces manufactured by Carbolite Gero for laboratory and industrial use. For further details of our standard or custom built products please contact us at the address below, or ask your nearest stockist.