Carbolite CFM MODELS Installation, Operation & Maintenance Instructions Manual Download

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Installation, Operation &

Maintenance Instructions

Combustion Tube Furnaces

CFM models

This manual is for the guidance of operators of the above Carbolite products

and should be read before the furnace is connected to the electricity supply.

ONTENTS

Section

page

1.0

Symbols & Warnings

2.0 Installation

3.0 Operation

4.0 Maintenance

5.0

Repairs & Replacements

6.0 Fault

Analysis

7.0 Circuit

Diagrams

8.0

Fuses & Power Settings

9.0 Specifications

Manuals are supplied separately for the furnace controller

(and overtemperature controller when fitted).

Please read the controller manuals before operating the furnace.

1.0

MF10

Summary of Contents for CFM MODELS

Page 1: ...he electricity supply CONTENTS Section page 1 0 Symbols Warnings 1 2 0 Installation 3 3 0 Operation 4 4 0 Maintenance 6 5 0 Repairs Replacements 8 6 0 Fault Analysis 12 7 0 Circuit Diagrams 13 8 0 Fuses Power Settings 13 9 0 Specifications 16 Manuals are supplied separately for the furnace controller and overtemperature controller when fitted Please read the controller manuals before operating the...

Page 2: ... is off there is a danger of electric shock when inserting objects into the furnace Heat Light the adjacent light glows or flashes to indicate that power is being supplied to the elements 1 2 Warning Symbols DANGER of electrical shock read any warning printed by this symbol DANGER hot surface Read any warning printed by this symbol WARNING all surfaces of a furnace may be hot DANGER read any warni...

Page 3: ...d to keep the controls cool Ensure that the furnace is placed in such a way that it can be quickly switched off or disconnected from the electrical supply see below 2 3 Setting Up The furnace 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 This manual only gives general guidance common to t...

Page 4: ...g Furnace without supply cable a permanent connection to a fused and isolated supply should be made to the internal terminals after temporary removal of the furnace back panel Connection by line plug the plug should be within reach of the operator and should be quickly removable Connection to isolating switch this should operate on both conductors single phase or on all live conductors three phase...

Page 5: ...and then flash as the furnace approaches the desired temperature or a program setpoint Unless a time switch is fitted and is off the furnace starts to heat up The Heat light s glow steadily at first and then flash as the furnace approaches the desired temperature or a program setpoint Overtemperature option only If the overtemperature trip operates then an indicator in the overtemperature controll...

Page 6: ...mal mass and should have feet to reduce the contact with the tube Avoid metal directly touching the work tube see the safety warning below 3 5 Operator Safety The ceramic materials used in furnace manufacture become electrically conductive to some extent at high temperatures DO NOT use any conductive tools within the work tube without isolating it The work tube is isolated when the Heater switch i...

Page 7: ... furnace The serial number and model type are also given on the front of this booklet when supplied with a furnace To contact Thermal Engineering Services or Carbolite see the back page of this manual 4 4 Recommended Spares Kits Carbolite can supply individual spares or a kit of the items most likely to be required Ordering a kit in advance can save time in the event of a breakdown Each kit compri...

Page 8: ...ments taking care to readjust the power limit If the furnace does not reach temperature or is slow measure the element resistances and calculate the required power limit using the method given above If it exceeds 100 the elements have too high a resistance and need replacing check your data and calculations with Carbolite See the separate manual supplied for how to adjust the controller Always rec...

Page 9: ...provide further information on request Alternatively our service division can quote for any repairs to be carried out at your premises or ours 5 3 Temperature Controller Replacement 201 This controller is fitted to the back of the control panel in many models this can be separated from the base by removal of two screws Before handling the controller wear an anti static wrist strap or otherwise avo...

Page 10: ...the case so it does not fall onto the electrical connections below Remove the brick box lid and all insulation noting how it is assembled and observing the position of the heating element wires or tails Pull the element tails out of the terminal blocks and remove sufficient insulation to allow access to the heating element Check and replace damaged insulation Fit the new heating element ensuring t...

Page 11: ...ate diagram fig 6 Use the special tool or finger pressure to fit the clips Take care that adjacent clips do not touch each other Replace the furnace end guards and connect the furnace to the supply If aged elements have been replaced reset the furnace power limit CFM 14 4 this model has 6 elements in series on 220 240V On 110 120V these are connected as two sets of 3 elements in series in which ca...

Page 12: ...owing on the controller Æ The SUPPLY light is ON Æ The controller may be faulty or not receiving a supply due to a faulty switch or a wiring fault Æ The SUPPLY light is OFF Æ Check the supply fuses and any fuses in the furnace control compartment B Furnace Overheats 1 The HEAT light goes OFF with the instrument switch Æ The controller shows a very high temperature Æ The controller is faulty Æ The ...

Page 13: ...ature controller overtemp controller thermocouple PE L N SSR e l e m e n t s F3 F3 F1 F2 contactor if o temp fitted thermocouple heat on 7 2 1400 C Model with Auxiliary Heater Supply light Instrument Switch coil temperature controller overtemp controller PE L N SSR e l e m e n t s heat on F3 F1 F2 F3 contactor if o temp fitted thermocouple thermocouple safety switch Filter if fitted auxiliary cont...

Page 14: ...ses Volts Supply Fuse Rating Volts Supply Fuse Rating type CFM 12 1 12 2 1 phase 220 240 5A 110 120 10A CFM 14 1 14 2 1 phase 220 240 15A or 16A 110 120 30A or 32A CFM 14 1 14 2 Aux 1 phase 220 240 20A 110 120 40A CFM 14 4 1 phase 220 240 20A 110 120 40A 8 2 Power Settings The power limit settings parameter OP Hi for the 1200 C CFM models are all 100 with the exception of any units supplied for 25...

Page 15: ...CFM 9 0 MF10 15 ...

Page 16: ...ng the details below UK Office Keison Products P O Box 2124 Chelmsford Essex CM1 3UP England Tel 44 0 330 088 0560 Fax 44 0 1245 808399 Email sales keison co uk Please note Product designs and specifications are subject to change without notice The user is responsible for determining the suitability of this product ...

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Carbolite CFM MODELS, Installation, Operation & Maintenance Instructions Manual

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