VERDER Carbolite Gero EVT 12/450B Installation, Operation And Maintenance Instructions Download Page 8 | Manualshive

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2.0 Installation

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Position the vertical stand upright (2) on the stand base in line with the fixing holder.

l

Secure the stand upright to the base using the 6 x M6 dome cap screws (4) and wash-
ers (3) supplied.

l

Partially screw in the top M6 screw knobs, 2 x (6) into the frame upright as shown in
2.3.3.

l

Hook the furnace onto the top screw knobs. This may take 2 people to lift the fur-
nace.

l

Fit the bottom screw knobs x 2 and tighten all four.

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Summary of Contents for Carbolite Gero EVT 12/450B

Page 1: ...Installation Operation and Maintenance Instructions 1200 C E Range Tube Furnace EVT Model 450mm No Controller EVT 12 450B No Controller MEN EVT12450B 005_NOCTRL 30 01 2018 ...

Page 2: ... stand 9 2 3 3 Figure Mounting the furnace onto the vertical stand 9 2 3 4 Figure Tube furnace positioned horizontally on the stand 10 2 3 5 Figure Tube support 11 2 3 6 Figure Tube support assembled 11 2 3 7 Figure Tube support and end seal 12 2 3 8 Figure Tube support and end seal assembly 12 2 3 9 Figure View showing how to support the work tube in a vertical ori entation 13 2 4 Setting Up With...

Page 3: ...1 6 1 Safety Warning Disconnection from Power Supply 21 6 2 Safety Warning Refractory Fibre Insulation 21 6 3 Temperature Controller Replacement 21 6 4 Solid state Relay Replacement 22 6 5 Thermocouple Replacement 22 6 6 Element Replacement 22 6 7 Fuse Replacement 23 7 0 Fault Analysis 24 A Furnace Does Not Heat Up 24 B Product Overheats 25 8 0 Wiring Diagrams 26 8 1 WA 11 30 26 8 2 WA 11 70 27 9 ...

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: ...work tube adaptors or it could be possible for an operator to access electrically live element coils that could cause serious injury or death 8 Warning label Switch off the furnace before loading and unloading The furnace heaters must be switched OFF using the heater switch item 2 in Figure 1 3 1 when the furnace is being loaded or unloaded The work tube can become electrically conductive at high ...

Page 6: ...lements are ener gized 4 Product rating label indicating the product serial number and electrical information 5 Access holes to front panel fixing 6 Warning label Disconnect the mains supply before removing this cover 7 Warning label Do not operate without a work tube 8 Warning label Switch OFF the fur nace before loading and unloading 9 Electrical power lead socket 10 Back panel fixing screws 1 3...

Page 7: ...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 Ensure that there is free space around the sides and back of the product Clear space is required above the product to dissipate heat If the product is to be used in a process which could liberate hazardous gases ...

Page 8: ... stand upright to the base using the 6 x M6 dome cap screws 4 and wash ers 3 supplied l Partially screw in the top M6 screw knobs 2 x 6 into the frame upright as shown in 2 3 3 l Hook the furnace onto the top screw knobs This may take 2 people to lift the fur nace l Fit the bottom screw knobs x 2 and tighten all four 8 ...

Page 9: ...mbling the stand Index to numbered items in Figure 2 3 2 and Figure 2 3 3 1 Vertical stand base 2 Vertical stand upright 3 Fixing screws M6 x 16 dome cap screw 4 Washer M6 5 Tube furnace 6 M6 screw knob 2 3 3 Figure Mounting the fur nace onto the vertical stand 9 2 0 Installation ...

Page 10: ...it the work tube with the furnace in the horizontal position as shown in figure 2 3 4 To fit the work tube in a vertical orientation follow the steps below Omit the use of the end seal if not required The same tube support design will work with or without the tube end seal in place WARNING If clamps are used without an end seal care should be taken not to over tighten on to a bare tube especially ...

Page 11: ...5 using item 6 until the tube is secure enough for use in a vertical arrangement Fitting arrangement is shown in figure 2 2 l Figure 2 2 shows an exploded view of all the required parts l Figure 2 2 shows the assembled parts as they would be used 2 3 5 Figure Tube support 2 3 6 Figure Tube support assembled 11 2 0 Installation ...

Page 12: ... Installation 2 3 7 Figure Tube support and end seal 2 3 8 Figure Tube support and end seal assembly For extra stability of the tube repeat the assembly instructions above as shown in figure 2 3 82 3 9 12 ...

Page 13: ...mounting frame It is the customer s responsibility to carry out a risk assessment on the siting and mounting of the furnace and to ensure that it is operated in a safe manner see section 2 2 for the recommended siting instructions The fitting of the work tube is covered in the previous section 2 4 1 Figure Tube furnace shown without a stand for customers own mounting as an example Index to numbere...

Page 14: ... Alignment of radiation shields is similar to that of insulation plugs see below If a metal work tube is being used in the furnace ensure that it is earthed See the safety warning in section 4 4 2 4 2 Figure Cross section view show ing standard length work tube insulation plug fitted 2 4 3 Figure Cross section view show ing extended work tube insulation plug fitted 2 4 4 Figure Cross section view ...

Page 15: ...ternal supply fuses in which case customer fusing is preferred but not essential See section 9 0 for furnace rating power current and fusing information The external connection should be either a permanent connection to a fused isolator supply or to a socket on a fused isolator supply the isolating switch must operate on both conductors Make sure that the isolator switch is within easy reach of th...

Page 16: ...3 0 Temperature Controller 3 0 Temperature Controller If this product is fitted with a temperature controller instructions are provided separately 16 ...

Page 17: ...uct will start to heat up The Heat light s glow steadily at first and then flash as the product approaches the desired temperature or a program setpoint Over Temperature option only If the over temperature circuit has tripped an indicator on the over temperature controller flashes and the heating elements are isolated Find and correct the cause before resetting the over temperature controller acco...

Page 18: ...h item 2 in Warning Labels when the furnace is being loaded or unloaded The work tube can become electrically conductive at high temperatures If an element has failed and collapsed onto the work tube the work tube will become live causing serious injury or death 4 3 General Operating Advice Heating element life is shortened by overheating Do not leave the product at high temperature when it is not...

Page 19: ... The controller can be set to limit both the heating and cooling rate 4 6 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 bar 3 psi A pressure of approximately half of that should normally be sufficient to achieve the desired flow rate The operator must ensure that the exhaust ...

Page 20: ...determine whether full calibration is required Carbolite Gero can supply these items Depending on the controller fitted the controller instructions may contain calibration instructions 5 3 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 custo...

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: ...onnections Thermocouple cable colour codings are thermocouple leg colour positive type N pink negative white Disconnect the thermocouple from its terminal block Carefully withdraw the thermocouple from the product and remove any broken bits of thermocouple Bend the new thermocouple carefully to match the shape of the original working from the terminal end Should the length differ from that of the ...

Page 23: ... 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 23 6 0 Repairs and Replacement...

Page 24: ... a low temperature 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 f...

Page 25: ...r 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 25 7 0 Fault Analysis ...

Page 26: ...t safety switch es Key F1 F2 F3 Fuses FIL Filter R1 1 R1 2 Relay Contactor R1 Relay C Temperature Controller TC Control Thermocouple SSR Solid State Relay SSW Safety Switch H Heat Lamp EL Element s SW Instrument Switch es N Neutral L Live PE Earth Cables BU Blue R Red GR Y Green Yellow G Grey P Pink 26 ...

Page 27: ... Filter R1 1 R1 2 Relay Contactor R1 Relay C Temperature Controller TC Control Thermocouple SSR Solid State Relay SSW A SSW B Safety Switch es H Heat Lamp EL Element s SW Instrument Switch es N Neutral L Live PE Earth Cables BU Blue R Red GR Y Green Yellow G Grey P Pink 27 8 0 Wiring Diagrams ...

Page 28: ... type F fitted on EMC filter circuit board s F2 Auxiliary Circuit Fuses Fitted on board to some types of EMC filter May be omitted up to 25 Amp phase supply rating 2 Amps glass type F On board 20 mm x 5 mm Other 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 Fuse Ratin...

Page 29: ...d models covered by this manual are fitted with elements designed for use over the range of voltages 200 V 240 V the power limit parameter is set according to the table below These models may be relocated to a different voltage within the range The power limit depends on the voltages follows Voltage 200 V 208 V 220 V 230 V 240 V Percentage 100 100 89 82 77 Non standard Models Non standard voltages...

Page 30: ...ble from Carbolite Gero for work tubes with outside diameters of 32 mm 46 mm and 60 mm 10 1 Environment The furnaces contain electrical parts and should be stored and used in indoor conditions as follows Ambient temperature working range Temperature 5 C to 40 C Note when operating the furnace at temperatures close to the maximum and the ambient temperature is above 30 C the allowed external temper...

Page 31: ...lation procedure see section 2 1 Step 3 After reading the controller operation instructions heat the furnace following the temperature profile given below This will need to be done manually on furnaces with basic control option or programmed into the controller if an advanced control option is fitted l Ramp the setpoint temperature 2 C minute to 100 C and dwell for 2 hours l Ramp the setpoint temp...

Page 32: ......

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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