VERDER CARBOLITE GERO TZF 12/38/850 Installation, Operation And Maintenance Instructions Download | Manualshive

Page: 19 / 34

background image

rect positioning

Seals (if fitted)

Check all seals and O-rings and clamps

Performance

Element Circuit

Electrical measurement

Power Consumption

Measure the current drawn on each
phase / circuit

Cooling Fans (if fitted)

Check whether the cooling fans are work-
ing

19

5.0 Maintenance

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Summary of Contents for CARBOLITE GERO TZF 12/38/850

Page 1: ...Installation Operation and Maintenance Instructions 1200 C Tube Furnace 3 zone TZF Model 850mm No Controller TZF 12 38 850 No Controller MEN TZF12038 850 16_NOCTRL 19 06 2019 ...

Page 2: ...ture Controller 12 4 0 Operation 13 4 1 Operating Cycle 13 4 2 Control Method 13 4 3 3 Zone Control Methods 13 A Back to Back Thermocouples 14 B Retransmission of Setpoint 14 C Independent Control 15 4 4 General Operating Advice 15 4 5 Operator Safety 15 4 6 Tube Life 16 4 7 Pressure 16 4 8 Power Adjustment 17 4 9 Running at Low Temperatures 17 5 0 Maintenance 18 5 1 General Maintenance 18 5 2 Mai...

Page 3: ... Heat Up 25 B Product Overheats 26 8 0 Wiring Diagrams 27 8 1 WC 13 01 27 8 2 WC 13 31 28 8 3 2 and 3 phase With Neutral 29 8 4 Independent Zones control method C 29 8 5 Control by Broadcast Comms control method B 29 9 0 Fuses and Power Settings 30 9 1 Fuses 30 9 2 Power Settings 30 User Power Setting Adjustments 31 10 0 Specifications 32 10 1 Environment 32 3 ...

Page 4: ...d to the elements Heat switch the switch disconnects power to the heating elements unless this switch is OFF there is a danger of electric shock when inserting objects into the product 1 2 General Warnings DANGER Electric shock Read any warning printed next to this symbol WARNING Risk of fatal injury DANGER Hot surface Read any warning printed next to this symbol WARNING All surfaces of a product ...

Page 5: ...Caution Double Pole Neutral Fusing 5 1 0 Symbols and Warnings ...

Page 6: ...of heat and on a non flammable surface that is resistant to accidental spillage or hot materials The surface on which the equipment is mounted should be stable and not subject to movement or vibrations The height of the mounting surface is important to avoid operator strain when loading and unloading samples Unless otherwise stated elsewhere in this manual ensure that there is at least 150 mm of f...

Page 7: ...on shields is similar to that of plugs If stainless steel seals with gas inlets are supplied they are to be fitted as shown in fig 3 the stem of any insulating plug should touch the seal For vertical models with stainless steel seals a hook and eye arrangement holds the upper insulating plug assembly Horizontal models if heavy fittings are to be clamped to the end of an extended work tube they can...

Page 8: ...2 0 Installation Fig 1 Insulating Plug standard length tube Key A Tube B Insulating Plug C Stem Fig 2 Insulating Plug long work tube 8 ...

Page 9: ...p End Seal For assembly details refer to the separate work tube end seal manual Under no circumstances should any objects be placed on top of the product Always ensure that any vents on the top of the product are clear of any obstruction Always ensure all cooling vents and cooling fans if fitted are clear of any obstruction 2 3 Electrical Connections Connection by a qualified electrician is recomm...

Page 10: ...ctory fitted supply cable are designed to be wired directly to an isolator or fitted with a line plug Products without a factory fitted supply cable require a permanent connection to a fused and isolated supply The product s electrical access panel should be temporarily removed and connections made to the internal terminals If the product is to be connected by line plug The plug should be within r...

Page 11: ...o phase 2 L3 Black to phase 3 N Light Blue to neutral except delta PE 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 11 2 0 Installation ...

Page 12: ...3 0 Temperature Controller 3 0 Temperature Controller If this product is fitted with a temperature controller instructions are provided separately 12 ...

Page 13: ...solated Find and correct the cause before resetting the over temperature controller according to the instructions supplied To switch off power to the heating elements use the heater switch To switch the product off use both the heater switch and the instrument switch If the product is to be left switched off and unattended isolate it from the electrical supply 4 2 Control Method Set the three temp...

Page 14: ...it The display returns to the measured temperature when no key is pressed for a short period of time Sometimes a furnace using this type of control does not cool down because the end zones lose heat first and therefore the end zone controllers try to compensate for this by switching on the end zone elements preventing the furnace from cooling B Retransmission of Setpoint Three independent thermoco...

Page 15: ...sfer between the zones The models listed in this manual are designed to achieve an extended uniform temperature zone by the use of three control zones rather than achieving different temperatures in each zone 4 4 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 prod...

Page 16: ...re at risk A general rule for maximum heating or cooling rate is 400 internal diameter in mm to give C min for 75 mm i d tubes this comes to 5 C per minute The controller can be set to limit both the heating and cooling rate 4 7 Pressure Work tubes are not able 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 2 b...

Page 17: ...he OP Hi parameter l make a note of the value and compare with the 9 0 l observe the rating label if a range of voltages is stated it is not a 208 V multi voltage model l if in doubt check with Carbolite Gero each product has its own record card Refer to the controller instructions for how to change the power limit 4 9 Running at Low Temperatures The power limit may be adjusted to a low level in o...

Page 18: ...ure Safety Circuit if fitted Electrical measurement Safety Switch Function split models only Set a safe temperature above ambient and open the furnace to see if the heater light goes out Safety Switch Function split models only Electrical measurement Electrical Safety external Visual check of external cables and plugs Electrical Safety internal Physically check all connections and clean ing of the...

Page 19: ...ck all seals and O rings and clamps Performance Element Circuit Electrical measurement Power Consumption Measure the current drawn on each phase circuit Cooling Fans if fitted Check whether the cooling fans are work ing 19 5 0 Maintenance ...

Page 20: ...r instructions may contain calibration instructions 5 4 After Sales Service Carbolite Gero Service has a team of Service Engineers who can offer repair calibration and preventive maintenance of furnace and oven products both at the Carbolite Gero factory and at customers premises throughout the world A telephone call or email often enables a fault to be diagnosed and the necessary parts to be desp...

Page 21: ...ered during maintenance or repair Whilst there is no evidence of any long term health hazards it is strongly recommended that safety precautions are taken whenever the materials are handled Exposure to fibre dust may cause respiratory disease When handling the material always use approved respiratory protection equipment RPE eg FFP3 eye protection gloves and long sleeved clothing Avoid breaking up...

Page 22: ... on vertical models the terminal cover Within some models the thermocouple lies inside the product body the body must be removed from the control base and the end cap and insulation ring removed from one end Disconnect the product from the power supply Remove terminal cover to gain access to the thermocouple connections Make a note of the thermocouple connections Thermocouple cable colour codings ...

Page 23: ... end Use a sharp knife to cut right through the insulation down to the wire wound tube element along the whole length of the body but do not cut either of the ceramic board end discs The knife cut must be in line with the element lead wires Slide the element gently out through the end of the product body Check the cylindrical case and clean out as appropriate Remove any insulation sleeving from th...

Page 24: ...e 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 For safety reasons do not fit larger capacity fuses without first consulting Carbolite Gero The fuses are located at the cable entry point Remove the back panel or control box back panel to gain access to the fuses 2...

Page 25: ...The door switch es if fitted may be faulty or need adjustment The contactor relay if fitted may be faulty The heater switch if fitted may be faulty or need adjustment The SSR could be failing to switch on due to internal failure faulty logic wiring from the controller or faulty controller There are no lights glowing on the controller Check the supply fuses and any fuses in the furnace control comp...

Page 26: ...aulty The controller shows a low temperature The thermocouple may be faulty or may have been removed out of the heating chamber The thermocouple may be connected the wrong way around The controller may be faulty 2 Product heats up when the instrument switch is OFF The SSR has failed ON Check for an accidental wiring fault that could have overloaded the SSR 26 ...

Page 27: ...8 0 Wiring Diagrams 8 1 WC 13 01 Connections below show single phase with indirect safety switches and over temperature control 27 8 0 Wiring Diagrams ...

Page 28: ...8 0 Wiring Diagrams 8 2 WC 13 31 Connections below show single phase with indirect safety switches and over temperature control 28 ...

Page 29: ... EMC filter requirements 8 4 Independent Zones control method C When this is ordered there are three independent thermocouples instead of the four shown connected to the three controllers the words master and slave may be replaced by centre and end 8 5 Control by Broadcast Comms control method B When this is ordered there are three independent thermocouples connected to the three controllers the c...

Page 30: ...ting 2 Amps glass type F 32 mm x 6 mm Customer Fuses Required if no supply cable fitted Recommended if cable fitted See rating label for current See table below for fuse rating Model Phases Volts Supply Rating TZF 12 38 850 1 phase 200 240 16 A 9 2 Power Settings The power limit settings parameter OP Hi for this model are voltage dependant The figures represent the maximum percentage of time that ...

Page 31: ...djustments 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 31 9 0 Fuses and Power Settings ...

Page 32: ...ces with a ceramic work tube wound with resistance wire TZF 12 38 850 1200 2 85 38 900 850 27 Note Weights are approximate for horizontal models and do not include fittings or vertical stands 10 1 Environment The models listed in this manual contains 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 decreasin...

Page 33: ...Notes Service Record Engineer Name Date Record of Work ...

Page 34: ... us at the address below or ask your nearest stockist For preventive maintenance repair and calibration of all furnace and oven products please contact Carbolite Gero Service Telephone 44 0 1433 624242 Fax 44 0 1433 624243 Email ServiceUK carbolite gero com Carbolite Gero Ltd Parsons Lane Hope Hope Valley S33 6RB England Telephone 44 0 1433 620011 Fax 44 0 1433 621198 Email Info carbolite gero com...

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