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VERDER CARBOLITE GERO CDHT 450 Installation, Operation And Maintenance Instructions

200c coal drying oven + 2132 controller
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Installation, Operation and Maintenance Instructions
200°C Coal Drying Oven - CDHT Model: 450 Litres
2132 Controller
CDHT 450 + 2132 Controller
MEN-CDHT450-001_2132
08-10-2018
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Summary of Contents for VERDER CARBOLITE GERO CDHT 450

  • Page 1 Installation, Operation and Maintenance Instructions 200°C Coal Drying Oven - CDHT Model: 450 Litres 2132 Controller CDHT 450 + 2132 Controller MEN-CDHT450-001_2132 08-10-2018...

  • Page 2: Table Of Contents

    Contents This manual is for guidance on the use of the Carbolite Gero product specified on the front cover. This manual should be read thoroughly before unpacking and using the furnace or oven. The model details and serial number are shown on the back of this manual.
  • Page 3 4.2.3 Over-Temperature Operation 4.2.4 Over-Temperature Alarm 4.2.5 Resetting the Over-Temperature Alarm 4.2.6 Sensor Break Audible Alarm Navigation Diagram 5.0 Operation Operating Cycle Over-Temperature Control (if fitted) Explosive Vapours Cool Drying Application 6.0 Maintenance General Maintenance Maintenance Schedule 6.2.1 Cleaning Calibration After-Sales Service Recommended Spare Parts and Spare Parts Kit Power Adjustment...
  • Page 4 11.1 Environment...

  • Page 5: Symbols And Warnings

    1.0   Symbols and Warnings 1.0 Symbols and Warnings Switches and Lights Instrument switch: when the instrument switch is operated the temperature control circuit is energised. General Warnings DANGER – Electric shock. Read any warning printed next to this symbol. WARNING: Risk of fatal injury. DANGER –...

  • Page 6: Installation

    2.0   Installation 2.0 Installation Unpacking and Handling When unpacking or moving the product, always lift by its base; do not use the door or any other projecting cover or component to support the equipment when moving it. Use a fork lift or pallet truck to move the product; position the product on a level surface and use an adequate number of personnel to safely move the product into position.

  • Page 7: Electrical Connections

    2.0   Installation Depending on the application of the product, it may be appropriate to position it under an extraction hood. Ensure the extraction hood is switched on during use. Ensure that the product is placed in such a way that it can be quickly switched off or disconnected from the electrical supply.
  • Page 8 2.0   Installation A table of the most common fuse ratings is also given in section 8.0 towards the back of this manual. Ensure that the correct fuse is used for the product supplied. When the mains cable is factory fitted internal fuses are also fitted. Customer fusing is essential. Product with supply cable: either wire directly to an isolator or fit with a line plug.

  • Page 9: 2132 Controller

    3.0   2132 Controller 3.0 2132 Controller Description The 2132 Controller is made by Eurotherm, and is fitted and configured by Carbolite Gero for immediate use. It is a digital instrument with PID control algorithms. The 2132 Controller features: Easy use as a simple temperature controller, where on setting the required tem- perature the controller immediately attempts to reach and maintain it.

  • Page 10: 2132 Controller Operation

    3.0   2132 Controller 3.2.2 2132 Controller Operation Alarm Light Page Scroll D Down Display When switched on, the controller lights up, goes through a short test routine and then displays the measured temperature or the over-temperature setpoint. The page key allows access to parameter lists within the controller.

  • Page 11: Stopping And Starting Control

    3.0   2132 Controller 3.2.5 Stopping and Starting Control It is possible to stop and start the controller without altering the setpoint. Press scroll until the legend 'm-A' (manual/ auto) appears. In this controller, manual means OFF and auto means ON. Press down or up once to show the current on/ off state: 'mAn' for OFF and 'Auto' for ON.

  • Page 12: Operating With The Timer

    3.0   2132 Controller Fig 1 - Control without Ramp-to-Setpoint Fig 2 - Control with Ramp-to-Setpoint Temperature Time Setpoint WSP Working Setpoint Actual Temperature Operating with the Timer This controller can be used as a process timer allowing timed heating or timed delay, according to the options in the table.
  • Page 13 3.0   2132 Controller Timer Mode Description Timer Light The timer starts timing when the actual temperature is within 1 °C On while temperature is mode 1 of the setpoint. At the end of the reaching setpoint. On during timing period, control switches Timed dwell and the timing period.

  • Page 14: Setting The Timer Mode

    3.0   2132 Controller 3.3.1 Setting the Timer Mode Scroll to 'tm.OP'; use to view and alter the mode. The mode shows as 'OPt.1' to 'OPt.5'. It is not possible to alter the mode while the timer is operating; if the mode cannot be altered, scroll to the 'StAt' parameter and set its value to OFF.

  • Page 15: Stopping The Timer

    3.0   2132 Controller Fig 3 - Timer Modes Temperature Time Setpoint Working Setpoint (if setpoint ramp rate active) Actual Temperature M245 Modes 2, 4 & 5 Modes 1 & 3 Timing Mode 5 Reaching Temperature Modes 1 & 2 Modes 1 & 2 Modes 3 &...

  • Page 16: End Of Time Period

    3.0   2132 Controller 3.3.5 End of Time Period Modes 1 and 3: heating stops at the end of timing; the 'm-A' parameter changes to 'mAn'. Modes 2 and 4: heating continues at the end of timing; the 'm-A' parameter remains at 'Auto'.
  • Page 17 3.0   2132 Controller For silicon carbide heated furnaces the parameter is accessible to allow for compensation for element ageing. In wire-heated chamber or tube furnaces, reducing the power limit is a convenient method of improving control at low temperatures, as outlined below.
  • Page 18 3.0   2132 Controller The controller is calibrated for life at manufacture against known reference sources, but there may be sensor errors or other system errors. User calibration allows compensation for such errors and this controller allows for a user 2-point calibration. This setting is password protected to avoid accidental alteration.

  • Page 19: Audible Alarm

    3.0   2132 Controller User Temperature Reading Factory Temperature Reading UC User Calibration UF Factory Calibration Audible Alarm If an audible alarm is supplied for use with the timer function, then it is normally configured to sound at the 'End' condition and to go off when the alarm is acknowledged as given in section 3.3.6.

  • Page 20: Navigation Diagram

    3.0   2132 Controller Navigation Diagram...
  • Page 21 3.0   2132 Controller HL Home List Input List OL Output List AL Access List Measured temperature; use arrow keys to access setpoint Output power (read only) Present only if SPrr in use Manual/Auto (mAn = off, Auto = on) Setpoint ramp rate OFF or value Timer mode Time remaining Dwell time for timer...

  • Page 22: 2132 Over-Temperature Controller Description (If Fitted)

    4.0   2132 Over-Temperature 4.0 2132 Over-Temperature Controller Description (if fitted) Description Alarm Light Page Scroll D Down Display This over-temperature controller is fitted and supplied ready to use by Carbolite Gero. It is a digital instrument with a latching alarm, requiring no additional panel controls. The controller features easy setting of over-temperature setpoint and reading of current temperature by the over-temperature sensor.

  • Page 23: Operation

    4.0   2132 Over-Temperature 4.2.2 Operation When switched on, the controller lights up, goes through a short test routine and then displays the measured temperature or the over-temperature setpoint. The page key allows access to parameter lists within the controller. A single press of the page key displays the temperature units, normally set to °C;...

  • Page 24: Audible Alarm

    4.0   2132 Over-Temperature Audible Alarm If an audible alarm is supplied for use with the over-temperature controller, it is normally configured to sound on over-temperature 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.

  • Page 25: Operation

    5.0   Operation 5.0 Operation Operating Cycle The product is fitted with an instrument switch. The switch cuts off power to the controllers and elements. The circulation fan will operate when the instrument switch is on. An optional door switch may be fitted. If so, ensure that the door is closed to operate the fans and heating elements.

  • Page 26: Cool Drying Application

    5.0   Operation Cool Drying Application The CDHT is designed to operate at typically 150°C - 200°C to dry and test coal samples in accordance with international standards. The oven has air inlet and outlet vents designed to ensure a constant flow of fresh air to dry the samples and carry moisture away.

  • Page 27: Maintenance

    6.0   Maintenance 6.0 Maintenance General Maintenance Preventive rather than reactive maintenance is recommended. The type and frequency depends on the product use; the following are recommended. Maintenance Schedule CUSTOMER QUALIFIED PERSONNEL DANGER! ELECTRIC SHOCK. Risk of fatal injury. Only electrically qualified personnel should attempt these maintenance procedures.
  • Page 28 6.0   Maintenance Check whether the cooling fans are work- Cooling Fans (if fitted) Circulating Fan Visual check to see if it is running (if fitted) Circulating Fan Check bearings and replace if necessary (if fitted) Element Circuit Electrical measurement Measure the current drawn on each Power Consumption phase / circuit Shelves...

  • Page 29: Cleaning

    6.0   Maintenance 6.2.1 Cleaning The product's outer surface may be cleaned with a damp cloth. Do not allow water to enter the interior of the case or chamber. Do not clean with organic solvents. 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.
  • Page 30 6.0   Maintenance In some cases the supply voltage 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 8.0 for details of power limit settings.

  • Page 31: Repairs And Replacements

    7.0   Repairs and Replacements 7.0 Repairs and Replacements Safety Warning - Disconnection from Power Supply Immediately switch the product off in the event of unforeseen circumstances (e.g. large amount of smoke). Allow the product to return to room temperature before inspection. Always ensure that the product is disconnected from the electrical supply before repair work is carried out.

  • Page 32: Temperature Controller Replacement

    7.0   Repairs and Replacements Remove the screws holding the panel. Do not disconnect any wiring without first making a careful note of all the connections. For the internal element cover. Open the door. Remove any screws holding the panel and any clips holding thermocouples in position. Remove the cover. Temperature Controller Replacement Refer to the controller instructions for more information on how to replace the temperature controller.

  • Page 33: Solid-State Relay Replacement

    7.0   Repairs and Replacements back. Tighten the compression fitting. Refit the air guide. Bend the thermocouple to match the shape of the previous part and refit any clips. Refit the element access panel. Compression fittings are only fitted to moisture extraction and stoving and curing products.

  • Page 34: Fuses And Power Settings

    8.0   Fuses and Power Settings 8.0 Fuses and Power Settings Fuses F1 - F2: Refer to the circuit diagrams. GEC Safeclip of the type shown Fitted if supply cable fitted. Internal (glass type F up to 16 A) Supply Fitted on board to some types 38 mm x 10 mm type F fitted on Fuses of EMC filter.

  • Page 35: Fault Analysis

    9.0   Fault Analysis 9.0 Fault Analysis Oven Does Not Heat Up temperature No power from Check the fuses in the supply line controller is supply The controller shows a very high temperature The temperature sensor has broken temperature or a controller is or has a wiring fault code such as EEE...

  • Page 36: Wiring Diagrams

    10.0   Wiring Diagrams 10.0 Wiring Diagrams For wiring diagrams, please contact Carbolite Gero Service. Please quote the serial number and model.

  • Page 37: Specifications

    11.0   Specifications 11.0 Specifications Carbolite Gero reserves the right to change the specification without notice. Approx Chamber Size Max Temp Max Power Net Weight Model Capacity (°C) (kW) (kg) CD Range Ovens for Coal Drying CDHT/450 610 610 1220 11.1 Environment The models listed in this manual contains electrical parts and should be stored and used in indoor conditions as follows:...
  • Page 39 Notes Service Record Engineer Name Date Record of Work...
  • Page 40 The products covered in this manual are only a small part of the wide range of ovens, chamber furnaces and tube furnaces manufactured by Carbolite Gero for laboratory and industrial use. For further details of our standard or custom built products please contact us at the address below, or ask your nearest stockist.

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