VERDER CARBOLITE GERO CFM 14/1 AUX Installation, Operation And Maintenance Instructions
1400 c combustion tube furnace
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- Page 1 Installation, Operation and Maintenance Instructions 1400°C Combustion Tube Furnace - CFM Model:14/1 AUX No Controller CFM 14/1 AUX + No Controller MEN-CFM1401X-005_NOCTRL (18-10-2021)
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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 Fuse Replacement 7.0 Fault Analysis Furnace Does Not Heat Up Product Overheats 8.0 Wiring Diagrams WB-12-10-AUX WB-12-11-AUX 9.0 Fuses and Power Settings Fuses Power Settings User Power Setting Adjustments 10.0 Specifications 10.1 Environment...
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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. Heat switch: the switch disconnects power to the heating elements;... - Page 5 Caution – Double Pole/Neutral Fusing...
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Page 6: Installation
2.0 Installation Unpacking and Handling When unpacking or moving the product always lift it by its base or by both ends of the main body. Never lift it by its work tube or the surrounding insulation. Use two or more people to carry the product and control box. -
Page 7: Heating Elements
Ensure that the product is placed in such a way that it can be quickly switched off or disconnected from the electrical supply. The product is typically used for sulphur and chlorine test in accordance with BS1016 parts 6 & 7, ASTM D 3177-75; ISO 351 & 609. Please refer to the appropriate documentation. -
Page 8: Electrical Connections
Electrical Connections Connection by a qualified electrician is recommended. This product requires a single-phase A.C. supply with earth (ground), which may be Live to Neutral non-reversible (polarised), Live to Neutral reversible (non-polarised), or Live to Live. Check the product rating label before connection. The supply voltage should agree with the voltage on the label and the supply capacity should be sufficient for the current on the label. - Page 9 This model has an electronically controlled power limit. Do not attempt to calculate the Amps from the Wattage. High break capacity fuses should be used. Avoid fast-blow fuses and magnetic trip circuit breakers - consult Carbolite Gero if in doubt.
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Page 10: Temperature Controller
3.0 Temperature Controller If this product is fitted with a temperature controller, instructions are provided separately. -
Page 11: 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. Turn on the instrument switch to activate the temperature controllers. The controllers illuminate and go through a short test cycle. Over-Temperature option only. -
Page 12: General Operating Advice
General Operating Advice Heating element life is shortened by overheating. Do not leave the product at high temperature when it is not required. The maximum temperature is shown on the product rating label and in section 10.0 towards the back of this manual. Lightweight ceramic fibre insulation can easily be marked by accidental contact. -
Page 13: Operator Safety
Operator Safety The ceramic materials used in the product manufacture become electrically conductive to some extent at high temperatures. DO NOT use any conductive tools within the product without isolating it. If a metal work tube is used, it must be earthed (grounded). Switch off the heater switch whenever loading or unloading the product. -
Page 14: Pressure
4.6 Pressure Work tubes are not intended to accept high internal pressure. When gas seals or similar fittings are in use, the gas pressure should be restricted to a maximum of 0.05 bar (50mbar). A pressure of approximately half of that should normally be sufficient to achieve the desired flow rate. -
Page 15: 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 16 tically) Visual check for damage or wear, End Plugs / Radiation Shields and correct positioning Check all seals and O-rings and Seals (if fitted) clamps Performance Element Circuit Electrical measurement Measure the current drawn on each Power Consumption phase / circuit Check whether the cooling fans are Cooling Fans (if fitted) working...
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Page 17: 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 18: Element Ageing
A table of standard power limits is supplied with new products, it is given in section 9.0 Element Ageing Silicon carbide elements gradually increase in resistance with use; a process known as ageing. Their heating power reduces correspondingly. To ensure sufficient power to the product, it may be necessary to adjust the power limit and, ultimately, replace the elements - taking care to readjust the power limit. -
Page 19: 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 20: 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 21: Element Fitting And Replacement - 1400 °C Models
Element Fitting and Replacement - 1400 °C Models Replacements: see section 5.7. 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 22: Fuse Replacement
Fuse Replacement Fuses are marked on the wiring diagram with type codes, e.g. F1, F2. For more information on fuses refer to section 9.0. Depending on model and voltage, the different fuse types may or may not be fitted. If any fuse has failed, it is advisable for an electrician to check the internal circuits. Replace any failed fuses with the correct type. -
Page 23: 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 24: 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 25: Wiring Diagrams
8.0 Wiring Diagrams WB-12-10-AUX WB-12-11-AUX... -
Page 27: Fuses And Power Settings
9.0 Fuses and Power Settings Fuses F1-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. Fitted on board to some types 2 Amps glass type F of EMC filter. -
Page 28: User Power Setting Adjustments
User Power Setting Adjustments Date % Power Comments Note: If a new set of elements are fitted then return the power settings to the original value. Please refer to the rating label for product specific information. -
Page 29: Specifications
10.0 Specifications Carbolite Gero reserves the right to change the specification without notice. Internal Bore Model Max Temp (°C) Max Power (kW) Net Weight (kg) (mm) Heated by resistance wire wound on a ceramic former. CFM 14/1 1400 1 X 38 The 1400 °C models are also available with an auxiliary heater attachment All models are designed to accept 1 or 2 work tubes 25 mm internal diameter by 750 mm long. - 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.