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MF58 

– 1.06                                                                                                                                  7                                            

 

 

3.0

 

ABF

 

O

PERATION

 

This section describes how to heat the chamber up to temperature,  

3.1

 

Switches – Control Panel 

The main control switches are on the left hand side of the control panel (photo 3.1).  

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The Instrument Switch cuts off power to the controllers, other devices (including the fan) and 
heating circuit contactors. 

3.2

 

General Operating Notes 

 

Heating element life is shortened by use at temperatures close to maximum. Do not leave the 
ABF at high temperature when not required. The maximum temperature for the main chamber is 
800°C , and for the after burner 950°C.  

 

Light weight ceramic fibre insulation can easily be marked by accidental contact. Some fine 
cracks may be visible on the surface of the insulation, or may develop in the surface of the 
chamber due to the progressive shrinkage of the insulation materials. Cracks are not usually 
detrimental to the functioning or the safety of the furnace. 

 

The chimney and extraction ducting should always be correctly fitted and unobstructed: see 
sections 2.3 & 2.4. 

 

See sections 4.1 and 4.2 for information about maintenance. 

 

The product has been design for ashing items that containing no more than 40g of carbon.   

 

Baskets are provided with a loading handle.  These can be used to load and unload the items 
being ashed.  Make sure you have a safe surface, which must not be inflammable, available to 
place the basket when unloading. 

3.1

 

Operator Safety 

 

The ABF incorporates a safety switch which interrupts the heating element circuit when the door 
is opened.  

 

Wear appropriate safety clothing: gloves, a mask and safety glasses are recommended. 

Photo 3.1 

 

 

 

 

 

 

extraction fan 

switch 

Instrument switch 

main chamber 

heater lamps 

afterburner 

controller 

main chamber 

temperature 

controller 

afterburner 

heater lamp 

main chamber 

over temperature 

controller 

Summary of Contents for ABF 8/28

Page 1: ...rs of the above Carbolite product and must be read before the equipment is connected to the electricity supply Manuals are supplied separately for the furnace controllers CONTENTS Section page 1 0 Symbols Warnings 3 2 0 Installation 4 3 0 Operation 7 4 0 Maintenance Repairs 9 5 0 Fault Finding 11 6 0 Circuit Diagram Fuses 12 7 0 Specification 13 ...

Page 2: ...ossible after receipt of the equipment The next page shows pictures of many of the parts for identification purposes quantity item 1 Afterburner Ashing Furnace ABF 8 28 1 Chimney 1 Basket set 1 Basket set loading handle 1 Stand only if ordered In addition any spare parts ordered should be separately identified and put aside in safe storage ...

Page 3: ...ing system 1 4 Maintenance or Dismantling The user should read the warning on refractory fibrous insulation given in section 4 0 before undertaking any work involving exposure to the internal insulation material The user should disconnect the equipment from the electrical supply before removing panels to access the electrical connections and control equipment DANGER of electrical shock read any wa...

Page 4: ...lammable The surface should be stable and not subject to movement or vibration If the optional metal stand is supplied this is best placed on a solid concrete floor The height of the mounting surface is important to avoid operator strain when loading and unloading samples A surface height of about 600mm is recommended to give a sample loading height of about 960mm Ensure that there is free space a...

Page 5: ...ve the level of the building Rules for ducting Ducting diameter must be 76mm or more Ducting must be 76mm where it connects to the chimney Ducting length must not exceed 3m for 76mm diameter for longer lengths consult a ducting engineer Flexible ducting if used must be suitable for exhaust gas extraction If an extraction fan is fitted an extraction hood is required with free flow of air around the...

Page 6: ...ncy for which the unit is configured If there is a difference between the actual supply and the rating label please call Carbolite GmbH Either wire directly to an isolator or fit with a line plug An isolating switch should operate on all live conductors three phase it should be within reach of the operator A line plug should be easily removable and should be within reach of the operator The supply...

Page 7: ...nkage of the insulation materials Cracks are not usually detrimental to the functioning or the safety of the furnace The chimney and extraction ducting should always be correctly fitted and unobstructed see sections 2 3 2 4 See sections 4 1 and 4 2 for information about maintenance The product has been design for ashing items that containing no more than 40g of carbon Baskets are provided with a l...

Page 8: ...rature controller 2132 This controller is mounted inside the furnace and has a set temperature of 900 C This controller automatically switches off the elements when the element chamber gets to hot and then switches back on The element over temperature controller is fitted as additional protecting for the heating elements This over temperature is self resetting and should not need any user adjustme...

Page 9: ... Insulation Wool industry www ecfia eu We can provide further information on request Alternatively our service division can quote for any repairs to be carried out at your premises or ours 4 1 General Maintenance Regularly clean the plenum chamber as described below The outer surface of the unit may be cleaned with a damp cloth Do not allow water to enter the interior of the case or chamber Do not...

Page 10: ...ire connections to the solid state relay and disconnect them Remove the solid state relay from the aluminium plate Replace and reconnect the solid state relay ensuring that a thin layer of white heat conducting silicon paste as supplied is applied between the new relay and the base panel The new solid state relay contains a built in MOV which protects it from short periods of excess voltage If the...

Page 11: ...ace Slow To Heat Up One of the Heat lamps does not light A fuse may have blown Check the Supply fuses The Heat lamps all light up An element may have failed Furnace Overheats The Heat lamp goes Off with the instrument switch The controller shows a very high temperature The controller may be faulty The controller shows a low temperature The thermocouple may have been shorted out or may have been mo...

Page 12: ... trip circuit breakers consult Carbolite if in doubt The supply fuse rating should be as follows Phase Volts Supply Fuse Rating 3 phase with neutral 380 220V to 415 240V 16A per phase 6 2 Power Limit Values The furnace control system incorporates electronic power control including a power limit parameter that is used to reduce the effective voltage to 208V or 104V the values of the power limit for...

Page 13: ...without chimney 980 mm Height with chimney 1160 mm Width 600 mm Depth length 750 mm Optional Stand 600 mm high Weight 120kg approximate Power Rating 8000 Watts Max Temperature 800 C 7 2 Environment The furnaces contain electrical parts and should be stored and used in indoor conditions as follows temperature 5 C 40 C relative humidity maximum 80 up to 31 C decreasing linearly to 50 at 40 C ...

Page 14: ...14 MF58 1 06 ...

Page 15: ...MF58 1 06 15 ...

Page 16: ...es manufactured by Carbolite 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 Copyright 2014 Carbolite Limited For preventive maintenance repair and calibration of all Furnace and Oven products please contact Carbolite Engineering Services Telephone 44 0 1433 624242 Fax 44 0 1433 62424...

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