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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

65

8.0 Maintenance

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Содержание TZF 12/75/700

Страница 1: ...ation and Maintenance Instructions 1200 C Tube Furnace 3 zone TZF Model 700mm 3508 Controller 3216CC End Zone Controllers TZF 12 75 700 3508 Controller 3216CC End Zone Controllers MEN TZF12075 09_3508_3216CC 19 06 2019 ...

Страница 2: ...Connections 12 3 0 3508 Controller 15 3 1 PID control 15 3 2 3508P1 15 3 3 3508P10 15 3 4 3508P25 15 3 5 Basic Operation 16 3 5 1 Controller Layout 17 3 5 2 Keys 17 3 6 Quick Start Guide 17 3 6 1 Operation as a simple controller 17 3 6 2 Changing the Setpoint 17 3 6 3 Resetting the programmer 18 3 6 4 Understanding User Levels 18 3 7 Setting Up Controller 19 3 7 1 Maximum output power setting 19 3...

Страница 3: ... Controller Navigation Diagrams 33 3 11 1 Operator Level 1 No Program Running 34 3 11 2 Operator Level 1 Program Running 35 3 11 3 Supervisor Level 2 36 4 0 3508 Dual Loop Cascade Control if fitted 37 4 1 Principle of Cascade Control 37 4 2 Operation of Cascade Control 37 4 3 Bypassing Cascade Control 41 4 4 3508P1 Element Loop Loop 2 41 4 5 Caution 41 4 6 Over Temperature Control 41 5 0 3216CC Co...

Страница 4: ...d 50 5 7 5 Delayed Switch on Timer 50 5 7 6 Running Delay Timer with Ramp Rate 51 5 7 7 Delay timer with ramp rate functions 51 5 7 8 Power Failure While Using Delay Timer 52 5 7 9 Soft start Timer 52 5 7 10 Power Failure While Using Soft Start Timer 52 5 7 11 Ramp Rate with Soft Start Timer 52 5 7 12 Time Remaining 52 5 7 13 Alarms 53 5 8 Controller Options 53 5 8 1 Digital Communications RS232 5...

Страница 5: ...tment 63 7 9 Running at Low Temperatures 63 8 0 Maintenance 64 8 1 General Maintenance 64 8 2 Maintenance Schedule 64 8 2 1 Cleaning 66 8 3 Calibration 66 8 4 After Sales Service 66 8 5 Recommended Spare Parts and Spare Parts Kit 66 9 0 Repairs and Replacements 67 9 1 Safety Warning Disconnection from Power Supply 67 9 2 Safety Warning Refractory Fibre Insulation 67 9 3 Temperature Controller Repl...

Страница 6: ...th Neutral 75 11 4 Independent Zones control method C 75 11 5 Control by Broadcast Comms control method B 75 12 0 Fuses and Power Settings 76 12 1 Fuses 76 12 2 Power Settings 76 User Power Setting Adjustments 77 13 0 Specifications 78 13 1 Environment 78 6 ...

Страница 7: ...itch 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 may be hot DANGER Read an...

Страница 8: ...1 0 Symbols and Warnings Caution Double Pole Neutral Fusing 8 ...

Страница 9: ...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 free space around ...

Страница 10: ...gnment of radiation 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 w...

Страница 11: ...Fig 1 Insulating Plug standard length tube Key A Tube B Insulating Plug C Stem Fig 2 Insulating Plug long work tube 11 2 0 Installation ...

Страница 12: ...e Fig 3 Twin Clamp 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 elec...

Страница 13: ...ly 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 reach of the opera...

Страница 14: ...hase 1 L2 Black to 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 14 ...

Страница 15: ...erature control when properly set This controller can store 10 programs of up to 50 segments each Programs can be operated individually or linked by a Call parameter as sub programs or to form single long programs The 3508P10 can also be used as a simple temperature controller 3 4 3508P25 The 3508P25 is a digital temperature controller which uses PID algorithms to give excellent temperature contro...

Страница 16: ... Indicator B Power Output Indicator C Not Used D Runs Holds Resets the current program E Page F Scroll G Down H Up I Power Output Percentage J Program Setpoint Temperature PSP when a program is running K Setpoint Temperature SP when basic controlling 16 ...

Страница 17: ...ute the display returns to Home 3 6 Quick Start Guide 3 6 1 Operation as a simple controller When switched on the controller goes through a short test routine and then shows the measured temperature Below it the setpoint temperature SP and percentage of power output The controller will immediately attempt to reach the set temperature and maintain it This will cause the product to heat as quickly a...

Страница 18: ...program runs The SP temperature of the controller does not apply when a program is operating To pause the program press RUN HOLD To stop the program and return to simple controlling reset press RUN HOLD for 2 seconds When the program ends the programmer will either Automatically reset to operation as a simple controller Dwell at the last temperature of the program with the RUN indicator flashing u...

Страница 19: ...Setting Up Controller Before using the controller or during its lifetime certain parameters may have to be set depending on specific requirements To do this the controller must be set to Supervisor Level 2 see Controller Navigation Diagrams 3 7 1 Maximum output power setting Press page until Control Output Hi is displayed Press up or down to adjust the value Depending on the product model the maxi...

Страница 20: ...e second segment type End type Dwell For the P10 and P25 programs can be linked together using a Call segment However a lower number program can not be called and a program can not be ended with a call segment A program can be ended in four ways 1 With End segment set to S OP the power to the elements is turned down to 0 no matter what the Setpoint temperature is 2 With End segment set to Reset an...

Страница 21: ...oling Off Holdback is switched off To set the holdback type press page twice then press scroll until the display shows Holdback Type for each segment and press up or down to set The default setting for holdback is OFF 3 8 3 Wait Segments Wait prevents the program proceeding to the next segment in a similar way to holdback until the selected Wait For parameter has been met There are 5 Wait For para...

Страница 22: ... the display will show ProgEdit 1 Program number On P10 or P25 models press up or down to select a new program number The display will show that new programs have only one segment Holdback Value Press scroll until the display shows Holdback Value If required Press up or down to set a value This value will be used in any segment where a Holdback Type is set Ramp Units These apply to Rate segments o...

Страница 23: ...p or down to select PrgIn1 PrgIn2 PrgIn1In2 PrgIn1orIn2 PVWaitIP GoBack to segment number visible only for GoBack segments Press scroll until the display shows GoBack Seg Press down to select a segment number to go back to GoBack Cycles visible only for GoBack segments Press scroll until the display shows GoBack Cycles Press up or down to set a value Call Cycles Visible only for call segments Pres...

Страница 24: ...rogram P10 and P25 To select a program Press page until Program Status Reset appears Press scroll then up or down to select a program number To operate the program Press RUN HOLD or Press scroll until the cursor moves to Reset Press up or down to select Run Run will be displayed 3 8 10 Program Status While a program is operating the home display shows 3 values l Top Measured temperature l Centre P...

Страница 25: ...not caught up with the program Programming note For P10 and P25 models other programs can be created or changed whilst the current program is operating 3 8 12 Power Failure Recovery If there is a power interruption to the controller during a program when power is restored the controller pauses the program then ramps the temperature back up to the current program setpoint PSP before continuing the ...

Страница 26: ...ed On P10 or P25 models press up or down to select a new program number a program with only 1 segment 3 Press scroll until Holdback Value is displayed Default 0 degrees 4 Press scroll until Ramp Units is displayed Press up or down to set to Min 5 Press scroll until Cycles is displayed Default 1 6 Press scroll until Segment 1 is displayed 7 Press scroll until Segment Type is displayed Press up or d...

Страница 27: ...set 13 Press page and scroll together to return to the home display To run the program either press RUN HOLD or 14 Press page until Program Status is displayed 15 Press scroll until the cursor moves to the program status of Reset 16 Press to select Run 27 3 0 3508 Controller ...

Страница 28: ...Time 120 min 3 8 15 Program Example 2 The following sequence of entries creates and runs the program shown graphically below 1 Turn the Setpoint to 0 by pressing down 2 Press page until Prog Segments Used is displayed On P10 and P25 models press up or down to select a new program number a program with only 1 segment 3 Press scroll until Holdback Value is displayed Press up or down to set to 5 degr...

Страница 29: ...pe Rate Target SP 400 degrees Ramp Rate 2 0 degrees per minute Segment Type Step Target SP 200 degrees Segment Type Dwell Holdback High Duration 30 00 0 minutes Segment Type Call Call Prog next number Call Cycles 2 Finish the program with an End segment 11 Press scroll until Segment Type is displayed Press up or down to select End 12 Press scroll until End Type is displayed Press up or down to sel...

Страница 30: ...egment 4 Holdback Value 5 C P10 and P25 only Program 3 Example 3 9 Controller Options As options can be ordered in a variety of combinations and for a variety of purposes exact instructions are not given here The full Eurotherm manual may be required to determine customer parameter settings To reveal or hide parameters in the controllers it is necessary to go into configuration mode a security cod...

Страница 31: ...20 Link together 3 9 2 Digital Communications RS485 If an RS485 option is supplied the furnace is fitted with two D sockets Connection between products is by straight cable as follows Product end of cable female 25 pin 9 pin RS485 Cable product to PC Computer end of cable 9 pin 25 pin female 2 3 3 2 Tx 3 2 2 3 Rx Com 7 5 _________________ 5 7 Com 3 9 3 Comms Address Typically the comms address is ...

Страница 32: ...uration depends on customer requirements Remote input when specified may be switched on and off using the remote setpoint enable parameter in the controller level 2 if this was made available for a particular application In level 2 press page until REM SP Enable is displayed press up or down to select SP1 the normal controller setpoint or SP2 the remote input setpoint SPX will appear in the top le...

Страница 33: ... anti static wrist strap or otherwise avoid any possibility of damage to the unit by static electricity Refer to the detailed instructions supplied with the replacement controller Ease apart the two lugs at the side grip the instrument and withdraw it from its sleeve push in the replacement 3 11 Controller Navigation Diagrams The following diagrams detail how to navigate to the various menu option...

Страница 34: ...11 1 Operator Level 1 No Program Running HD Home Display Controller identity when using more than one controller R O Read Only Black Progress Page Key White Return Scroll Key Visible Parameters depend on the Segment Type 34 ...

Страница 35: ...ogram Running HD Home Display Controller identity when using more than one controller R O Read Only Black Progress Page Key White Return Scroll Key See previous diagram Operator Level 1 No Program Running 35 3 0 3508 Controller ...

Страница 36: ...er Level 2 Scroll Key B Level 2 Locked before Pass Code entered L1 Level 1 Home Display Unlocked L2 Level 2 Home Display Black Progress Page Key See previous diagram Operator Level 1 No Program Running Hold Page Key for 3 seconds If configured Arrow Key 36 ...

Страница 37: ...scade control system is configured to limit the element temperature to a band around the load temperature typically of 10 of the set point temperature The set point of the load loop shown at the top of the display can be adjusted by the operator The Element Loop shown at the bottom of the display should not be adjusted by the operator will automatically regulate the element temperature to achieve ...

Страница 38: ...0 3508 Dual Loop Cascade Key A Home Display View B Load Loop View C Element Loop View The Element Loop should never be adjusted Note that the elements usually run at a higher temperature than the load 38 ...

Страница 39: ...temperature or is slow in the final stages FF Trim can be increased a maximum of 10 is suggested Feed Forward View When attempting to control at very low temperatures it can become a problem to achieve stable control because of excessive power being supplied during heating The available power can be limited using the power limit parameter OP Hi make a note of the original settings before adjusting...

Страница 40: ...4 0 3508 Dual Loop Cascade Power Limit View 40 ...

Страница 41: ...ooling at low temperatures takes longer per degree than it does at high temperatures 4 5 Caution If the Load Thermocouple is removable leave it in the furnace or oven chamber whenever possible Operating with the Cascade Control active and with the Load Thermocouple in an unheated position such as lying on the work bench may cause the furnace or oven to heat up to its maximum temperature wasting po...

Страница 42: ...be used as a simple temperature controller it cannot be programmed 5 2 PID control This controller uses PID Proportional Integral Derivative temperature control This type of control uses a complex mathematical control system to adjust the heating power and achieve the desired temperature 5 3 Operation 5 3 1 Controller Layout Key A Power Output Indicator B Alarm Indicator C Remote Indicator when co...

Страница 43: ...t the required SP If the SP is higher than the measured temperature the OP1 indicator will illuminate in the top left corner of the display indicating that the controller is calling for power giving an output The controller will immediately attempt to reach the setpoint and then maintain it This will cause the product to heat as quickly as possible which may not be appropriate where the product co...

Страница 44: ...yed and then revert to the level 2 home display If an incorrect code is entered the display reverts back to Level 1 home display When level 2 operations have been completed the supervisor must return to Level 1 either manually or by switching the instrument off and back on There is no time out function To Return to Level 1 1 Press and hold the page Key 2 Press down to select LEu 1 It is not necess...

Страница 45: ...mperature has reached the setpoint value at the given ramp rate the run indicator will turn off and the instrument will control at the required setpoint temperature Any further modifications to setpoint will cause the ramp rate to be activated and the instrument to control as described above NOTE Ensure timer configuration is set to none see section 5 6 to use the setpoint ramp rate feature withou...

Страница 46: ...er ID A furnace or oven identification number can be entered if required This maybe used to identify one of many units for production or quality control systems Press scroll until the display shows ID CUSTOMER ID Use the up and down keys to enter your own identification number This can range from 1 9999 5 5 4 Units Press scroll until the display shows UNITS DISPLAY UNITS Use the up or down keys to...

Страница 47: ...l the display shows THres TIMER THRESHOLD Use the up down to select the temperature threshold that you require the timer to start at The threshold value is n around the setpoint n threshold value Example If the setpoint is set to 800 C and the timer threshold is set to 2 after the timer is activated it will not start until the process value reaches 798 C if ramping up or 802 C if it is cooling Not...

Страница 48: ...ss scroll until the display shows TM CFG TIMER CONFIGURATION Using the up down select SF st When Soft Start parameter is selected the Timer Resolution TM RES Time Duration DWELL Soft Start Setpoint SS SP and Soft Start Power Limit SS PWR functions become available Press scroll until the display shows TM RES Time resolution Use the up down to select the timer units in minutes or hours Press scroll ...

Страница 49: ... OFF Display A M LOOP MODE AUTO MANUAL OFF Use the up or down to select AUTO Timer Ended Indicator RUN OFF Scrolling Text Timer End Static Text OFF To re RUN Timer Press and quickly release Indicator RUN ON Scrolling Display Timer Running To RESET timer and return to home menu after timer end Press and quickly release Ack Indicator RUN OFF Scrolling Display None Press and hold for more than 1 seco...

Страница 50: ...imer is set to operate with a set ramp rate and threshold the timer will not start to count down until the process temperature has reached the threshold value see example 5 6 3 The scrolling display will indicate timer running and the run indicator will be illuminated while the ramp rate is active while the process value is reaching the threshold value and during the timer count down after which t...

Страница 51: ...e combinations of parameters is that the scrolling text will continue to indicate timer running when the timer has timed out Checking whether the timer has timed out or not can be done with the T REMN function see section 5 7 12 The delay timer with ramp rate will function as outlined in the table above with the addition of the functions in the following table 5 7 7 Delay timer with ramp rate func...

Страница 52: ...rate the scrolling display will indicate timer running and the setpoint temperature not the soft start setpoint 5 7 10 Power Failure While Using Soft Start Timer If there is a power failure while the timer is operating and the power is subsequently restored the timer will reset and will re run from the power on time 5 7 11 Ramp Rate with Soft Start Timer It is not recommended that the ramp rate fu...

Страница 53: ...tor should only be flashing to confirm this the controller must be viewed directly from the front 5 8 Controller Options As options can be ordered in a variety of combinations and for a variety of purposes exact instructions are not given here The full Eurotherm manual may be required to determine customer parameter settings To reveal or hide parameters in the controllers it is necessary to go int...

Страница 54: ... COMMS parameter is displayed Press up down to select the address value 5 8 4 Alarm Option When an alarm board is fitted which consists of a relay with voltage free contacts for operator use the contacts are taken to a panel plug on the control panel wired as indicated Key C Temperature Controller F Fuse 2A S Supply L Load Normally open relay contacts RO Relay Output 240V 2A MAX The purpose of the...

Страница 55: ...Ease apart the two lugs at the side grip the instrument and withdraw it from its sleeve push in the replacement 5 9 3216CC Navigation Diagram 55 5 0 3216CC Controller ...

Страница 56: ...strument switch which cuts off power to the controller and other parts of the control circuit To operate the controller power must be supplied to the product and the instrument switch must be on If a time switch is included in the product circuit this must be in the ON position When an over temperature condition occurs the controller cuts the power to a contactor which in turn cuts power to the he...

Страница 57: ... set at 15 C above the furnace or oven maximum working temperature Press scroll twice view the present temperature as measured by the over temperature controller Press it twice the first press shows the temperature units C 6 2 4 Over Temperature Alarm If an over temperature condition occurs the OP2 indicator flashes and an alarm message 2FSH also flashes alternating with the setpoint Power to the ...

Страница 58: ...erature condition and to stop sounding when the alarm is acknowledged as given in section 6 2 Note the alarm may sound during controller start up 6 4 Navigation Diagram HL Home List Page Key Black Progress OTSP Over Temperature Setpoint Scroll Key Dashed Through to other options AL Access List For factory access to list and parameters not available to the operator 58 ...

Страница 59: ...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 7 2 Control Method Set the three temp...

Страница 60: ...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...

Страница 61: ...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 7 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...

Страница 62: ...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 7 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...

Страница 63: ...e OP Hi parameter l make a note of the value and compare with the 12 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 7 9 Running at Low Temperatures The power limit may be adjusted to a low level in o...

Страница 64: ...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...

Страница 65: ...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 65 8 0 Maintenance ...

Страница 66: ...r instructions may contain calibration instructions 8 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...

Страница 67: ...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...

Страница 68: ... 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 ...

Страница 69: ... 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...

Страница 70: ...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 7...

Страница 71: ...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...

Страница 72: ...faulty 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 72 ...

Страница 73: ...11 0 Wiring Diagrams 11 1 WC 13 01 Connections below show single phase with indirect safety switches and over temperature control 73 11 0 Wiring Diagrams ...

Страница 74: ...11 0 Wiring Diagrams 11 2 WC 13 31 Connections below show single phase with indirect safety switches and over temperature control 74 ...

Страница 75: ...EMC filter requirements 11 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 11 5 Control by Broadcast Comms control method B When this is ordered there are three independent thermocouples connected to the three controllers the ...

Страница 76: ... 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 75 700 1 phase 110 120 25 A TZF 12 75 700 1 phase 200 240 16 A TZF 12 75 700 2 or 3 phase 380 220 415 240 10 A 12 2 Power Settings The power limit settings parameter OP Hi for this model are vol...

Страница 77: ...justments 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 77 12 0 Fuses and Power Settings ...

Страница 78: ...aces with a ceramic work tube wound with resistance wire TZF 12 75 700 1200 3 0 75 750 700 46 Note Weights are approximate for horizontal models and do not include fittings or vertical stands 13 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...

Страница 79: ...Notes Service Record Engineer Name Date Record of Work ...

Страница 80: ... 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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