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Ensure that the product is placed in such a way that it can be quickly switched off or
disconnected from the electrical supply.

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 recommended.

This product requires a single-phase A.C. supply with earth (ground), which may be
Live to Neutral non-reversible (polarised), Live to Neutral reversible (non-polarised), or
Live to Live.

Check the product rating label before connection. The supply voltage should agree with
the voltage on the label and the supply capacity should be sufficient for the current on
the label.

The supply should be fused at the next size equal to, or higher than the current on the
label. This manual contains a table of the most common fuse ratings.

When the mains cable is factory fitted, internal fuses are also fitted. It is essential that
the operator ensures that the product is correctly fused.

6

Summary of Contents for 3508

Page 1: ...Installation Operation and Maintenance Instructions 1000 C CO2 Reactivity Furnace CRF Model 1 3508 Controller CRF 1 3508 Controller MEN CRF01 001_3508 18 10 2021 ...

Page 2: ... Operation 11 3 1 Operating Cycle 11 3 2 General Operating Advice 15 3 3 Recovery of Glass Retort 16 3 4 Over Temperature 17 3 5 Adjustment of Reaction Time 18 3 6 Power Adjustment 19 4 0 Temperature Controller 20 5 0 Maintenance 21 5 1 General Maintenance 21 5 2 Maintenance Schedule 21 5 3 Maintenance Schedule 23 5 3 1 Cleaning 25 5 4 Calibration 25 5 5 After Sales Service 25 5 6 Recommended Spar...

Page 3: ...Fault Analysis 29 A Furnace Does Not Heat Up 29 B Product Overheats 30 8 0 Wiring Diagrams 31 9 0 Fuses and Power Settings 32 9 1 Fuses 32 9 2 Power Settings 32 10 0 Specifications 33 10 1 Environment 33 3 ...

Page 4: ...y 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 any warning printed next to this symbol Caution Double Pole Neutral Fusing 4 ...

Page 5: ...ate Wool ASW For precautions and advice on handling this material see section 6 2 2 2 Siting and Setting Up Place the product on a level surface in a well ventilated area Site away from other sources 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 vibration...

Page 6: ...product requires a single phase A C supply with earth ground which may be Live to Neutral non reversible polarised Live to Neutral reversible non polarised or Live to Live Check the product rating label before connection The supply voltage should agree with the voltage on the label and the supply capacity should be sufficient for the current on the label The supply should be fused at the next size...

Page 7: ...pply Types Live Neutral Reversible or Live Live 1 phase L1 Brown to live to either power conductor For USA 200 240V connect L1 N L2 Blue to neutral to the other power conductor For USA 200 240V connect L2 PE Green Yellow to earth ground to earth ground Electrical Connection Details 2 4 Gas Supply Connections High quality bulkhead connectors are provided for the connection of suitable gas The incom...

Page 8: ...d regulated above 2 bar Approximately 5 bar 2 Turn on the gas supply 3 Slowly increase the CO2 pressure regulator until the pressure gauge reads 2 bar 4 This may need fine adjustment when the test has started 5 Connect glass retort to CO2 OUT 8 ...

Page 9: ...rt Thermocouple 1 Remove front right hand side panel 2 Un plug the thermocouple 3 Remove the centre MI thermocouple by turning the fixing screw out 4 Lower the thermocouple down and through the hole in bottom mesh 9 ...

Page 10: ...m end of the smaller retort tube through the base of the heating chamber 6 Carefully slide the thermocouple into the glass tube to the top of the sheath 7 Pull back from the top 2mm and re fit the fixing screw 8 Plug back in the thermocouple 9 Re fit front panel 10 ...

Page 11: ...ins isolator 3 The temperature controller will illuminate and start its test cycle 4 Press ON 5 The FURNACE ON light will be on and the furnace will start to heat up to the pre set program in the Eurotherm 3508 to ISO 12981 1 6 The GAS ON light will be on and gas will flow into the glass retort 11 ...

Page 12: ...he pressure gauge and make adjustment if need 9 After the temperature has reached 1000 C the controller will dwell for 10 minutes 10 After 10 minutes an alarm will sound for 10 seconds and then stop 11 The SAMPLE IN light will be flashing 12 ...

Page 13: ...ill dwell at 1000 C for 100 minutes with gas as to the ISO12981 1 16 After the dwell the FURNACE ON light will switch off 17 The furnace will start to cool down for 30 minutes with the gas on 18 After 30 minutes the alarm sounds for 10 seconds 19 The gas will turn off 20 The SAMPLE OUT light will be on 13 ...

Page 14: ...21 Remove the inner retort and place in the Retort Cooling Area 22 Retort Cooling Area 23 Press ON to reset for the next test 14 ...

Page 15: ... shown on the product rating label and in section 10 0 towards the back of this manual Lightweight ceramic fibre insulation can easily be marked by accidental contact Some fine cracks may develop in the surface of the insulation due to the progressive shrinkage of the insulation materials Cracks are not usually detrimental to the functioning or the safety of the product 15 ...

Page 16: ...rt breaks within the heating chamber or the test has to be stopped the control has to be reset 1 Press Page on the Eurotherm3508 Controller until PROGSTAT is displayed 2 Press Scroll until STATUS is displayed 3 Press the arrow keys until Reset is displayed 16 ...

Page 17: ...lways disconnect power to the furnace prior to carrying out recovery of the glass retort l Remove the front right panel l Take care when removing the element chamber 6 If the glass breaks within the element chamber l Remove with vacuum cleaner 3 4 Over Temperature Built within the control panel there is an element over temperature controller 17 ...

Page 18: ...t be adjusted The over temperature thermocouple is positioned within the element winding 3 5 Adjustment of Reaction Time 1 Enter Security Level 2 in the main controller pass code 9 see the Eurotherm 3508 Controller section of this manual 18 ...

Page 19: ... this manual are fitted with 208 V elements and are designed for use over the range of voltages 200 V 250 V the power limit parameter is set accordingly These models may be relocated to a different voltage within the range the power limit should be reset to match the voltage To check whether the furnace is a 208 V model l look at the OP Hi parameter l make a note of the value and compare with the ...

Page 20: ...4 0 Temperature Controller If this product is fitted with a temperature controller instructions are provided separately 20 ...

Page 21: ... alarm as detailed in this manual Over Temperature Safety Circuit if fitted Electrical measurement Electrical Safety external Visual check of external cables and plugs Electrical Safety internal Physically check all connections and clean ing of the power plate area Internal Element Pro tection Device Electrical measurement Gas Safety external Ensure the silicone pipe to the vessel is free from spl...

Page 22: ...Performance Element Circuit Electrical measurement Power Consumption Measure the current drawn on each phase circuit 22 ...

Page 23: ...n 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 cleaning of the power plate area Function Temperature Calibration Tested using certified equipment fre quency dependent on the standard required Operatio...

Page 24: ...Element Circuit Electrical measurement Power Consumption Measure the current drawn on each phase circuit Cooling Fans if fitted Check whether the cooling fans are working 24 ...

Page 25: ...ructions 5 5 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 despatched In all correspondence please quote t...

Page 26: ... may be encountered 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 Av...

Page 27: ...ment Disconnect the product from the power supply and remove the appropriate cover as given above 1 Make a note of the wire connections to the solid state relay then disconnect them 2 Remove the solid state relay from the base panel or aluminium plate 3 Replace and reconnect the solid state relay ensuring that the bottom of it has good thermal contact with the base panel or aluminium plate 4 Repla...

Page 28: ...ents are not available for this model of product if an element fails then a complete element assembly is required For details and fitting instructions contact Carbolite Gero Service see the back page of this manual for contact information 28 ...

Page 29: ...mperature 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 co...

Page 30: ... 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 30 ...

Page 31: ...8 0 Wiring Diagrams For wiring diagrams please contact Carbolite Gero Service Please quote the serial number and model 31 ...

Page 32: ...equired 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 Rating CRF 1 1 phase 110 120 TBC CRF 1 1 phase 200 240 6A 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 controlled power is supplied to t...

Page 33: ...sions External H x W x D mm Net Weight kg CO2 Reactivity Furnace CRF 1 1000 1 05 660 x 660 x 475 52 10 1 Environment The models listed in this manual contain 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 decreasing linearly to 50 at 40 C 33 ...

Page 34: ......

Page 35: ...Notes Service Record Engineer Name Date Record of Work ...

Page 36: ... 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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