Operating Instructions Temperature Controller Type 301 English / °C MC16-GB-C – 1.
Introduction Contents Section 1 Page Introduction to the Controller and Manual 1.1 1.2 1.3 2 4 4 4 4 Using This Manual PID Control Key Stroke Diagrams Basic Operation 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 5 Keys Indicators Menu System Home display Hold Mode Checking the Temperature Setpoint from the Home display Changing the Temperature Setpoint Changing the Temperature Setpoint Ramp Rate Changing the Timer Time Advanced Operation 3.1 3.2 3.3 3.4 3.5 3.6 4 4.1 4.2 5 5.5 5.6 5.7 6 7 8 8.1 8.
Contents 9 Overtemperature protection 9.1 9.2 9.3 9.4 9.5 9.6 10 10.1 10.2 11 12 12.1 13 MC16-GB-C – 1.
Introduction 1 Introduction to the Controller and Manual 1.1 Using This Manual This manual aims to explain how to set up and operate the 301 controller; it must be read in conjunction with the product main manual. Due to the complex nature of furnace or oven control the use of technical terms throughout this manual is unavoidable. Explanations of these terms can be found in the ‘Glossary of Terms’ at the back of this manual. 1.
Basic Operation 2 Basic Operation 2.1 Keys Page Key The Page key is used to scroll through the parameters and switch between menus. Timer Key The Timer key is used to start, view, pause and reset the timer. Arrow Keys Overtemperature Key 2.2 The Arrow keys are used to adjust the value of the selected parameter and pause the output power. The Overtemperature key is used to access the Overtemperature menu.
Basic Operation 2.4 Home display The Home display is the first display you see when the controller is switched on. It shows the actual temperature of the furnace or oven and will be referred to as PV throughout this manual. If you enter the menus, the controller will automatically return to the Home display if no keys are pressed for 30 seconds. 2.4.1 Finding the Home display from the Home menu 301 Press the Page key until the PV is shown on the display (301 shown as example). 2.4.
Basic Operation 2.6 Checking the Temperature Setpoint from the Home display Start at the Home display Press an Up or Down arrow key. The display will then flash SP%C 3 times. The Setpoint will show on the display for 3 seconds before returning to the Home display. 2.
Advanced Operation 3 Advanced Operation 3.1 Entering the Set Up menu Hold Start at the Home display. Press and hold the Page key for 1.5 seconds The display will change to the first parameter in the set up menu. 3.2 Changing the Timer Type t.tYP Hold Start at the Home display. Press and hold the Page key for 1.5 seconds to enter the set up menu. Press the Page key until t.tYP shows on the display. Use the Up and Down arrow keys to alter the value (t1 to t5) – See section 5.
Advanced Operation 3.4 Changing the Maximum Output Power Note: Output Power is a product specific setting and will not appear on all furnaces and ovens See section 7 for more information on Output Power. OPHi Hold Start at the Home display. Press and hold the Page key for 1.5 seconds to enter the set up menu. Press the Page key until OPHi shows on the display. Use the Up and Down arrow keys to alter the value (% power) – a single press shows the current setting.
Ramp Dwell Programming 4 Temperature Setpoint Ramp Rate 4.1 Setpoint Ramp Rate The setpoint ramp rate controls the rate at which the temperature in a furnace or oven changes over 1 minute. It can be set for heating and cooling applications. Setpoint ramp rate is useful when materials susceptible to thermal shock are being used. 4.2 Limitations of setpoint Ramp Rate The setpoint ramp rate should not be set higher than the maximum heat up or cool down rate of the furnace or oven.
Ramp Dwell Programming 5.4 Resetting The Timer Hold When the Timer count has ended or the timer is paused. Start at the Home display Press and hold the Timer key for 1.5 seconds rst is displayed to indicate timer reset. 5.5 Timer Function Description The 301 controller has an in-built timer, which can be set to one of five types: Timer Type t1 On pressing the Timer key; Timer Type 1 waits for the setpoint to be reached, then begins the countdown.
Ramp Dwell Programming 5.7 Timer Function Table On Pressing the Timer key During the Countdown On completion of the Countdown Output On On Off Timer Starts when Setpoint reached Counts Down Off Flashes t1 3 times. Shows Time left for 3 secs.
Ramp Dwell Programming 6 Ramp Dwell Programming Temperature The 301 controller has the capability to follow a Ramp Dwell program. Setpoint ramp rate SPrr Dwell time t1 Natural cool down Time 6.1 Setting up a Ramp Dwell program Set the Controller to Hold Mode: Hold Together Start at the Home display Press and hold the Up and Down arrow keys together for 1.5 seconds. The display will flash HOLd to show that hold mode has been entered. Set the Timer Type to t1 t.tYP Hold Start at the Home display.
Ramp Dwell Programming Set the Temperature setpoint. SP%C Start at the Home display Press the Page key until SP%C shows on the display Use the Up and Down arrow keys to alter the value (°C) The value will then be stored without any further input. Set the Setpoint ramp rate SPrr Press the Page key until SPrr shows on the display. Use the Up and Down arrow keys to switch off or alter the value (°C/min) The value will then be stored without any further input.
Customer Calibration 7 Maximum Output Setting Depending on the furnace or oven model the maximum output power setting OPHi may be accessible or hidden. For silicon carbide heated furnaces the parameter is accessible to allow compensation for element ageing, refer to the product manual for details. In many models the maximum output power setting depends on the supply voltage, refer to the product manual for details.
Customer Calibration 8.2.1 Changing the Single Point Calibration Offset OFSt CL.St OFSt Hold If starting from Home Display If password required Starting from CL.St after C.CL1 has been selected. Press the Page key until OFSt shows on the display. Press the Up or Down arrow key to display the current calibration offset. Press the Up or Down arrow key to change the offset value. The value will then be stored without any further input. Once the C.
Customer Calibration 8.5 Changing the Calibration, Low Temperature Offset - OFS.L CAL.L OFS.L Hold If starting from Home Display If password required OFS.L follows on from CAL.L when the Page key is pressed. Press the Up or Down arrow key to display the current calibration low offset. Press the Up or Down arrow key to alter the low offset value. The value will then be stored without any further input. 8.6 Changing the Calibration, High Temperature – CAL.H OFS.L CAL.
Overtemperature Protection 9 Overtemperature protection Overtemperature protection is an option on the 301 controller. An independent control circuit and temperature sensor provide the over temperature protection. There are two reasons for overtemperature protection: 1. To prevent the material being used in a furnace or oven from over-heating. 2. To give an extra safety system to prevent the furnace or oven from heating in the event of a fault. 9.
Overtemperature Protection 9.2 Changing the Overtemperature Limit Note: If protection of the sample being processed is required, the overtemperature limit is normally set 15oC above the temperature setpoint of the controller. If protection of the furnace or oven is required, the overtemperature limit is normally set 15 oC above the maximum setpoint of the furnace or oven. Hold Ot Start at the Home display. Press and hold the Overtemperature key. Press the Page key until OT shows on the display.
Overtemperature Protection 9.5 Overtemperature Activation When an overtemperature circuit is fitted and is operating, the overtemperature indicator is green. When the temperature of the furnace or oven goes above the overtemperature limit, the overtemperature circuit activates. The power supply to the heating elements is cut and the overtemperature indicator changes to flashing red. Pressing the Overtemperature key shows Ott in the display to say that the overtemperature has been triggered.
Overtemperature Protection 10.2 RS232 Communication Cables Connecting the furnace or oven to a computer is done via a “straight” cable as follows: Furnace end of cable male 9-pin Rx 3 Tx 2 Com 5 RS232 Cable: furnace to PC Computer end of cable female 9-pin 3 Tx 2 Rx 5 Com 11 Navigation Diagrams Overtemp Home Menu Home Menu Keep Held 301 OT Limit Sp%C OT Hold for t.tYP 1.5 Secs SPrr T2 T3 T5 T1, t4 T.bnd T1 Overtemp Setup Menu OPHi CL.St C.CL2 Fact C.
Glossary of Terms 12 Controller Fault 12.1 Fault Code Diagnostic Table Error Code S.br Explanation Actions Temperature sensor failure Replace the Furnace or Oven Temperature Sensor E - followed by Controller Error numerical code Turn Furnace or Oven off and back on to see if this clears the error. If not contact Thermal Engineering Services – (see back cover) 13 Glossary of Terms Process Value (PV) The actual temperature of the furnace or oven.
Navigation Diagrams 23 MC16-GB-C
For preventive maintenance, repair and calibration of all Furnace and Oven products, please contact: Carbolite Engineering Services Telephone: +44 (0)1433 624242 Fax: +44 (0)1433 624243 Email: service@carbolite.com Carbolite, Parsons Lane, Hope, Hope Valley, S33 6RB, England. Telephone: +44 (0)1433 620011 Fax: +44 (0)1433 621198 E-mail: info@carbolite.com MC16 – 1.
