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MTF 9/15 

 

 

O

PERATING 

I

NSTRUCTIONS

 

3.1  Operating Cycle 

 

 

 

Switch on the electrical supply.  The temperature controller will become illuminated and may now 
be adjusted as described in section 4.0. 

 

The furnace will begin to heat up.  The output light on the controller will flash steadily at first and 
then flash less as the furnace approaches the desired temperature. 

 

To switch off power to the heating element, switch off or disconnect the supply. 

3.2  General Operating Notes 

 

Heating element life is shortened by use at temperatures close to maximum.  Do not leave the 
furnace at high temperature when not required.  The maximum temperature is shown on the 
furnace rating label and on the back page of this manual. 

 

Materials such as waxes, case hardening compounds, melting fluxes and other reactive salts 
readily penetrate the ceramic tube and attack the wire element, causing premature failure. 

3.3  Operator Safety 

 

The ceramic materials used in furnace manufacture become electrically conductive to some extent 
at elevated temperatures.  DO NOT use any conductive tools within the work tube without 
isolating the furnace, unless the tools are earthed (grounded). 

 

Avoid burns.  Carbolite can supply tongs, face masks, and heat resistant gloves.  Before you 
remove a hot object from the furnace make sure you have a safe place to put it down.   

 

4.0 

MF09 

Summary of Contents for MTF 15

Page 1: ...supply CONTENTS section page 1 0 Symbols Warnings 2 2 0 Installation 3 3 0 Operating Instructions 4 4 0 Controller Operation 5 5 0 Maintenance 10 6 0 Repairs Replacements 11 7 0 Fault Analysis 13 8 0...

Page 2: ...s 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...

Page 3: ...A C supply with earth ground The supply may be Live to Neutral non reversible Live to Neutral with reversible plug or Live to Live The voltage or range of voltages on which the furnace may be operate...

Page 4: ...e at high temperature when not required The maximum temperature is shown on the furnace rating label and on the back page of this manual Materials such as waxes case hardening compounds melting fluxes...

Page 5: ...in the Navigation Diagram To return to the Home list at any time press Page and Scroll 4 together or wait for 45 seconds The Down T and Up S keys are used to alter the setpoint or other parameter valu...

Page 6: ...nd fig 2 indicate the possible difference between running without and with a ramp to setpoint value depending on the load and the value used 4 6 Navigation Diagram OP Hi SPrr m A w SP Home List Input...

Page 7: ...The timer starts timing immediately At the end of the timing period control switches off i e goes into Manual to allow cooling and End flashes on the display On during the timing period Off from the...

Page 8: ...ameter changes to run Note that the tmr display shows 0 zero during the last minute of timing and also shows 0 when the time has expired The timer light indicates whether timing is still in progress M...

Page 9: ...rrors or other system errors User calibration allows compensation for such errors and the 2132 allows for a user 2 point calibration This setting is password protected to avoid accidental alteration P...

Page 10: ...hroughout the world We also sell spares by mail order A telephone call or fax often enables a fault to be diagnosed and the necessary spare part despatched Each furnace has its own record card at Carb...

Page 11: ...ulletin No 11 and the UK Health and Safety Executive Guidance Note EH46 We can provide further information on request Alternatively our service division can quote for any repairs to be carried out at...

Page 12: ...beads When refixing the wrapped element position the beads just above edge of the metal channel to maximise the clearance between the outer case and the wires 6 6 Solid State Relay Replacement The so...

Page 13: ...ghts glowing on the controller The SUPPLY light is ON The controller may be faulty or not receiving a supply due to a faulty switch or a wiring fault The SUPPLY light is OFF Check the supply fuses and...

Page 14: ...MTF 9 15 CIRCUIT DIAGRAM 8 1 Circuit Diagram heating element thermocouple 2A 2A Re d Re d Blue Blue L N PE controller L N filter SSR pink grey 2 1 3 4 Green Yellow 9 0 14 MF09...

Page 15: ...nd 220 240V models Electronic power limiting in the 2132 controller is used to reduce the power in the 220 240V model The correct power limit settings parameter OP Hi for the furnace are as follows 22...

Page 16: ...l 41 41 541 5877 Fax 41 41 541 5878 Email General Information Sales info kesn ch Accounts Department accounts kesn ch USA O ce 233 Rogue River Highway 425 Grants Pass Oregon 97527 5429 USA Tel 1 503 2...

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