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1.0 Symbols and Warnings

1.0

Symbols and Warnings

1.1

Switches and Lights

Instrument switch: when the instrument switch is operated the
temperature control circuit is energised.

Solenoid valve (if fitted): see section 5.6 for full details

Variable speed fan (if fitted): see section 5.7 for full details

Exhaust fan (if fitted): see section 5.8 for full details

Stoving and curing (if fitted): see section 5.9 for full details

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.

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Содержание Carbolite Gero WV-11-01

Страница 1: ...Installation Operation and Maintenance Instructions 500 C Laboratory High Temperature Oven LHT Model 30 Litres No Controller LHT 5 30 No Controller MEN LHT5030 006_NOCTRL 06 08 2019 ...

Страница 2: ...ature Controller 9 4 0 2132 Over Temperature Controller Description if fitted 10 4 1 Description 10 4 2 Operation 10 4 2 1 Controls 10 4 2 2 Operation 11 4 2 3 Over Temperature Operation 11 4 2 4 Over Temperature Alarm 11 4 2 5 Resetting the Over Temperature Alarm 11 4 2 6 Sensor Break 11 4 3 Audible Alarm 12 4 4 Navigation Diagram 12 5 0 Operation 13 5 1 Operating Cycle 13 5 2 Over Temperature Co...

Страница 3: ...ulation 20 7 3 Panel Removal 21 7 3 1 Side Panel 21 7 3 2 Internal Element Cover 21 7 4 Temperature Controller Replacement 22 7 5 Solid State Relay Replacement 22 7 6 Thermocouple Replacement 22 7 7 Element Replacement 22 8 0 Fault Analysis 23 A Oven Does Not Heat Up 23 B Oven Overheats 23 9 0 Wiring Diagrams 24 9 1 WV 11 01 24 9 2 WS 10 01 Isolating for 208 V version only 25 10 0 Fuses and Power ...

Страница 4: ...r full details Variable speed fan if fitted see section 5 7 for full details Exhaust fan if fitted see section 5 8 for full details Stoving and curing if fitted see section 5 9 for full details 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...

Страница 5: ...DANGER Read any warning printed next to this symbol Caution Double Pole Neutral Fusing 5 1 0 Symbols and Warnings ...

Страница 6: ... fitted in the top of the case whilst others may have welded on lifting eyes NOTE This product contains Refractory Ceramic Fibre also known as Alumino Silicate Wool ASW For precautions and advice on handling this material see section 7 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 ...

Страница 7: ...ooling 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 vo...

Страница 8: ...ade to the internal terminals If the product is to be connected by line plug The plug should be within reach of the operator and should be easy to remove When connecting the product to an isolating switch ensure that both conductors single phase or on all live conductors three phase and should be within reach of the operator The supply MUST incorporate an earth ground Supply Terminal Label Cable C...

Страница 9: ...3 0 Temperature Controller If this product is fitted with a temperature controller instructions are provided separately 9 3 0 Temperature Controller ...

Страница 10: ...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 11: ... 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 4 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 12: ...erature condition and to stop sounding when the alarm is acknowledged as given in section 4 2 Note the alarm may sound during controller start up 4 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 12 ...

Страница 13: ...rrect the cause before resetting the over temperature controller according to the instructions supplied To switch the product off turn off the instrument switch If the product is to be left unattended isolate the electricity supply DO NOT switch off if the temperature is above 100 C damage could be caused to the fan and motor Adjust the controller to allow the temperature to fall 5 2 Over Temperat...

Страница 14: ... be very hot after the appliance is switched off Touching these surfaces may cause burns Use suitable personal protective equipment or wait until the appliance cools down to ambient temperature Before removing a hot object from the product make sure there is a safe place to put it down If necessary use tongs face masks and heat resistant gloves Heat resistant clothing and face protection can guard...

Страница 15: ...wasted in heating air 5 9 Stoving and Curing if fitted The stoving and curing option adds an explosion relief panel and a powered exhaust fan With this option the exhaust fan operates continuously when the product is switched on A pressure switch detects that there is sufficient air flow through the chamber If the pressure switch does not detect sufficient air flow a fault light illuminates and he...

Страница 16: ...nt lower than the displayed temperature and check for an over temperature alarm as detailed in this manual Over Temperature Safety Circuit if fitted Electrical measurement Door Seal Visual inspection check for splits or fray ing Door Seal Replacement Air Vent Check and clean if necessary Electrical Safety external Visual check of external cables and plugs Electrical Safety internal Physically chec...

Страница 17: ...Fan if fitted Visual check to see if it is running Circulating Fan if fitted Check bearings and replace if necessary Element Circuit Electrical measurement Power Consumption Measure the current drawn on each phase circuit Shelves Visual check for fit and damage 17 6 0 Maintenance ...

Страница 18: ...ion 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 the serial number and model type given on the rating label of the product The serial number and model type are also gi...

Страница 19: ...ge may be outside the range 220 240 V or the 3 phase equivalent the power limit parameter may be set to a value other than 100 Do not increase the value to 100 see section 10 0 for details of power limit settings 19 6 0 Maintenance ...

Страница 20: ...in any significant level of airborne dust from these materials but much higher levels 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 respirator...

Страница 21: ...ottom edge of the panel remains in contact with the main cas ing carefully lower the panel downwards to expose the products electrical com ponents Note Make a note of all connections before disconnecting any wiring 7 3 2 Internal Element Cover To gain access to the heating element thermocouple and fan 1 Open the oven door The internal element cover is situated on the right hand side of the oven ch...

Страница 22: ...ouple connections Make a note of the thermocouple connections Thermocouple cable colour codings are Thermocouple Leg Colour positive type K green negative white 1 Disconnect the thermocouple to be replaced from its terminal block and withdraw it 2 Re assemble the new thermocouple observing the colour coding 3 Refit the element access panel 7 7 Element Replacement l Remove the side panel and the in...

Страница 23: ...here are no lights glowing on the controller The controller may be faulty or not receiving a supply due to a faulty switch or a wiring fault B Oven Overheats 1 Oven only heats up when the instrument switch is ON The controller shows a very high temperature The controller is faulty The controller shows a low temperature The thermocouple may have been shorted out or may have been moved out of the ov...

Страница 24: ...1 Key F1 F2 Fuses FIL Filter SW Instrument Switch R1 Relay Coil R1 1 R1 2 Relay Contactor C Temperature Controller OT Over Temperature Controller TC Thermocouple SSR Solid State Relay EL Element s If Fitted L Live N Neutral PE GR Y Earth Green Yellow 24 ...

Страница 25: ...ing range for the controller and other components The supply voltage as shown is taken from a single phase supply or from the phase to phase voltage of a 3 phase supply The instrument circuit is modified as follows Key F1 F2 Fuses FIL Filter if fitted TX Transformer SW Instrument Switch N Neutral L1 Live PE Earth 25 9 0 Wiring Diagrams ...

Страница 26: ... 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 Rating LHT 5 30 1 phase 220 240 10 A 10 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 the elements ...

Страница 27: ...apacity l Net Weight kg H W D Laboratory High Temperature Ovens LHT 5 30 500 2 300 300 310 28 75 11 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 decreasing linearly to 50 at 40 C 27 11 0 Specifications ...

Страница 28: ......

Страница 29: ...Notes Service Record Engineer Name Date Record of Work ...

Страница 30: ... 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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