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Summary of Contents for Julabo LC6
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Page 1: Operating Manual
Operating Manual Programmable Controller JULABO Labortechnik GmbH 77960 Seelbach / Germany +49 (0) 7823 / 51-0 Printed in Germany +49 (0) 7823 / 24 91 Changes without prior notification reserved info@julabo.de 1.951.5220 03/11 www.julabo.de 19515220.DOC 15.03.2011... - Page 2 Congratulations! You have made an excellent choice. JULABO thanks you for the trust you have placed in us. This operating manual has been designed to help you gain an understanding of the operation and possible applications of our circulators. For optimal utilization of all functions, we recommend that you thoroughly study this manual prior to beginning operation.
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Page 3: Table Of Contents
TABLE OF CONTENTS Operating manual ..........................5 Intended use ..........................5 1.1. Description .........................5 Operator responsibility – Safety recommendations ...............5 2.1. Disposal ..........................7 2.2. EC Conformity ........................8 2.3. Warranty conditions......................8 2.4. Technical specifications .....................9 Operating instructions ........................11 Safety notes for the user ......................11 3.1. - Page 4 8.5. Analog inputs/outputs.......................35 8.6. Limits ..........................38 8.7. Interface ...........................38 8.8. Sensors ..........................39 Troubleshooting guide / Error messages ................40 Electrical connections ......................41 Remote control........................44 11.1. Setup for remote control....................44 11.2. Communication with a PC or a superordinated data system ........45 11.3. List of commands ......................46 11.4.
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Page 5: Operating Manual
Operating manual Intended use Fulfilling its principle task, reliable temperature control and measurement, the LC6 temperature controller also implements safety and monitoring functions, particularly in the areas of chemical research and quality control. The sophisticated capabilities of the unit allow wide application with... - Page 6 Operator responsibility – Safety recommendations If you have any questions concerning the operation of your unit or the information in this manual, please contact us! Contact: JULABO Labortechnik GmbH Tel. +49 (0) 7823 / 51-0 info@julabo.de Eisenbahnstraße 45 Fax +49 (0) 7823 / 24 91 www.julabo.de...
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Page 7: Disposal
Warning label W26: Colors: yellow, black Hot surface warning. (The label is put on by JULABO) Observe the instructions in the manuals for instruments of a different make that you connect to the circulator, particularly the respective safety recommendations. Also observe the pin assignment of plugs and technical specifications of the products. -
Page 8: Ec Conformity
24 months, limited to a maximum of 10 000 working hours. To apply for this extended warranty the user must register the unit on the JULABO web site www.julabo.de, indicating the serial no. The extended warranty will apply from the date of JULABO Labortechnik GmbH’s original invoice. -
Page 9: Technical Specifications
2.4. Technical specifications Adjustable temperature range °C -100 ... 400 Display accuracy ±0.5 ±1Digit Temperature stability °C >±0.03 Temperature selection digital via keypad indication on DIALOG-Display (LCD) remote control via personal computer indication on monitor Temperature indication MULTI-DISPLAY (LED) DIALOG-DISPLAY (LCD) Resolution °C 0.01... - Page 10 Operator responsibility – Safety recommendations Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ... 420 °C Supplementary safety installations High temperature warning function optical + audible (in intervals) Low temperature warning function optical + audible (in intervals) Supervision of the working sensor plausibility control Alarm indication...
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Page 11: Operating Instructions
Operating instructions Safety notes for the user 3.1. Explanation of safety notes In addition to the safety warnings listed, warnings are posted throughout the operating manual. These warnings are designated by an exclamation mark inside an equilateral triangle. “Warning of a dangerous situation (Attention! Please follow the documentation).”... - Page 12 Safety notes for the user attachment. • Observe the limited working temperature range when using plastic bath tanks. • Do not stay in the area below the unit. • Make sure you read and understand all instructions and safety precautions listed in this manual before installing or operating your unit.
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Page 13: Operating Controls And Functional Elements
Operating controls and functional elements Mains power switch, illuminated Start / stop key Working temperature T1 Working temperature T2 High temperature warning limit Low temperature warning limit Safety temperature Adjustable excess temperature protection (safety temperature) Control type: internal/external control MULTI-DISPLAY (LED) temperature indication Indicator lights: Temperature indication - external actual value Heating / Cooling / Alarm... - Page 14 Socket for external measurement and control sensor Rear view Interface RS232/RS485 SERIAL Programmer input and temperature recorder output REG+E-PROG Socket: control cable of JULABO refrigerated circulator or output for alarm messages Stand-by input (for external emergency switch-off) STAND-BY Alarm output (for external alarm signal) ALARM Control output for solenoid valve 230 V / max.
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Page 15: Operating Procedures
Operating procedures 5.1. Installation • The unit should be set up at a dry location. • Place the unit in an upright position and do not obstruct the ventilation. • A wall distance of at least 10 cm must be maintained for ventilation, allowing internal heat to be conducted away from the unit. -
Page 16: Connecting The Temperature Sensors
The flow of a coolant is indicated by the illumination of a green indication light on the control panel of LC6. The solenoid valve is designed to be attached to the coolant supply line. -
Page 17: Applications
• Both the measurement and control sensor „INT“ and the safety sensor „SF“ must be connected to the LC6 and immersed in the bath. • If a bath is to be operated at or near the ambient temperature, countercooling may be necessary to ensure bath stability. - Page 18 • The bath fluid is heated with a device providing indirect heat, such as a heating hood. • Both the measurement and control sensor „INT“ and the safety sensor „SF“ must be connected to the LC6 and immersed in the bath. Controlling an open bath with an indirect heating device and external control: •...
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Page 19: Operating Procedures
Operating procedures 6.1. Power connection Caution: • Only connect the unit to a power socket with earthing contact (PE – protective earth)! • The power supply plug serves as safe disconnecting device from the line and must be always easily accessible. •... -
Page 20: Manual Operation
Manual operation Manual operation 7.1. Start - Stop Start: • Press the start/stop key The MULTI-DISPLAY (LED) indicates the actual bath temperature. (example: 21.03 °C) Stop: • Press the start/stop key The MULTI-DISPLAY (LED) indicates the message "OFF". The unit also enters the safe operating state "OFF" or "r OFF after a mains power interruptance. -
Page 21: Warning Functions
Selecting the working temperature: • Press the setpoint key and then enter • Press the setpoint key and then enter 7.3. Warning functions More protection for your samples in the bath! )) )) )) An audible signal sounds in intervals when the actual temperature value exceeds one of the set limits (patented). -
Page 22: Setting The Safety Temperature (With Shutdown Function)
Manual operation 7.4. Setting the safety temperature (with shutdown function) (excess temperature protection) • Press the key to indicate the safety temperature value on the MULTI-DISPLAY and using a screwdriver simultaneously turn the setting screw to the desired value (example: 50 °C). Setting range: 0 °C to 420 °C in 2 °C steps... -
Page 23: Internal / External Control
7.5. Internal / external control The programmable controller offers the possibility of internal temperature control in a primary bath vessel or external control directly in an external system. Setup for external control: Connect a Pt100 sensor to the socket „EXT“ of the programmable controller, if necessary perform a calibration ext. -
Page 24: Menu Functions
Menu functions Menu functions • Press the MENUE key to enter the menu level. • Use the up/down cursor keys to select the desired submenu and press enter • Press escape to return to the previous menu level. -
Page 25: Configuration
8.1. Configuration By means of the configuration functions, operation of the programmable controller can be optimized for the current application. • Press enter to select the configuration submenu. • Use the up/down cursor keys to select the desired option. A flashing line indicates that a value needs to be entered. - Page 26 Menu functions Note: Requirement for an identification of the controlled system: • The programmable controller must heat to a setpoint temperature at least 10 °C above the previous setpoint using the adjusted heating power. • When the adjusted control parameters Xp, Tn and Tv are too high, this requirement may not be given with respect to on how much the setpoint temperature has to change.
- Page 27 Autostart Note: The programmable controller has been configured and supplied by JULABO according to N.A.M.U.R. recommendations. This means for the start mode, that the unit must enter a safe operating state after a power failure (non- automatic start mode). This safe operating state is indicated by „OFF“...
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Page 28: Control Parameters
Menu functions 8.2. Control parameters When performing an identification for the controlled system (temperature applications system) (see page 25), the control parameters Xp, Tn, and Tv will be automatically determined and stored. Each parameter may be manually set via the keypad if necessary, to allow optimum control performance. -
Page 29: Start Of A Profile
8.3. Start of a profile The start menu of the programmable programmer allows calling up and defined starting of one of six previously stored temperature profiles. There are two possibilities for manually starting a program: 1. Starting a program from the OFF status: The programmer switches back to the OFF status at the end of the program. - Page 30 Menu functions • When selecting the parameter time, a new menu level is called up for entry of the start time. A flashing segment indicates that a start time needs to be entered. Example: hour.min 6:00 h hour.min Start time Day.Mon day and month Year...
- Page 31 8.3.1. Interrupting a profile Interrupting a profile: Press the start/stop key to interrupt or restart a profile. The setpoint and time period set for the corresponding section are thus stopped at the values presently achieved. The programmable controller is put on hold and the message „pause“...
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Page 32: Integrated Programmer
Setting the clock The integrated clock provides the flexibility to start a profile at any date and time. The clock is preset at the JULABO factory. • Lines 1 to 3: Check for correctness of the preset date and time and correct if necessary. - Page 33 Edit Compile profiles: • A flashing segment indicates that a number needs to be entered. Under submenu „Edit Profile“ enter a profile number. Six profiles may be stored (nos. 0 to 5). Examples: Profile No. 1 • Then programme the desired values for each section. Use the keypad to set section number, target temperature Step and time period.
- Page 34 Menu functions Delete • A flashing segment indicates that the respective profile number needs to be entered in which one or more consecutive sections are to be deleted. • In lines 2 and 3 of the DIALOG DISPLAY (LCD) enter the numbers of the sections to be deleted.
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Page 35: Analog Inputs/Outputs
8.5. Analog inputs/outputs This submenu enables setting of the input and output values for the programmer input and the temperature recorder outputs of socket REG+E-PROG (21). • Press enter to select the inputs/outputs submenu. • Use the up/down cursor keys to select the desired option and press enter to open. - Page 36 Menu functions Examples: lowest temperature value: 10 °C highest temperature value 210 °C Fig. shows 200 °C scaled to paper width 10 °C 210 °C rise: 50 mV/°C Δ Τ = 200 K lowest temperature value: 197 °C 197 °C 202 °C Δ...
- Page 37 Example: • Setting a temperature of 50 °C on the external programmer! The value adjusted and set on the external programmer is displayed in line 4 of the DIALOG-DISPLAY (LCD) for control purposes (Example: ExtSet: 50.0 °C). After returning the LCD display to standard display by pressing escape („Setpoint“...
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Page 38: Limits
Menu functions 8.6. Limits When operating the programmable controller under external control, band limiting is active. The preset value determines the maximum temperature difference between the internal bath and the external load. This adjustment possibility prevents sensitive equipment and temperature devices from damage. Heating and cooling power of the programmable controller are adjustable. -
Page 39: Sensors
8.8. Sensors ATC - Absolute Temperature Calibration • Select the submenu „Temp.Sensor“ with enter • Select the desired option with the up/down cursor keys A flashing digit indicates that a value needs to be entered i.e. set. ATC Int.: used during the configuration of a Pt100 sensor attached on the socket labeled “INT”. -
Page 40: Troubleshooting Guide / Error Messages
• After eliminating the malfunction, press the mains power switch off and on again to cancel the alarm state. If the unit cannot be returned to operation, contact an authorized JULABO service station. Fuses • The mains fuses on the rear of the unit may easily be exchanged as shown on the left. -
Page 41: Electrical Connections
10. Electrical connections Notice: Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing. RS232/RS485 serial interface (30) This port can be used to connect a computer with an RS232 or RS485 cable for remote control of the programmable controller. - Page 42 5 Current output Channel 3 0 to 20 mA / 4 to 20 mA 6 GND for Progammer Control output (32) connector may be used for control of JULABO refrigerated programmable controllers or as output for alarm messages. Pin assignment: Signal +24 V (I max.
- Page 43 STAND-BY input (33) (for external emergency switch-off) Pin assignment: Signal not connected 5 V / DC Use shielded cables only. Activate the stand-by input: STAND-BY • Under menu item Stand-by, set the parameter to „yes“ (see page 27). • Connect an external contact 'AK' (e.g. for emergency switch-off) or an alarm contact of the superordinated system.
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Page 44: Remote Control
Remote control Control connector (35) The connector may be used with solenoid valves. Line voltage: 230 V∼ / max. 1.25 A 115 V∼ / max. 1.25 A 11. Remote control 11.1. Setup for remote control Select the „Configuration“ submenu and select the option „Setpoint“... -
Page 45: Communication With A Pc Or A Superordinated Data System
11.2. Communication with a PC or a superordinated data system Suitable terminal programs for communicating with a PC are: • MS-Windows - TERMINAL.EXE (included with MS-Windows). If the programmable controller is put into remote control mode via the configuration level, the display will read "r OFF"... -
Page 46: List Of Commands
Remote control 11.3. List of commands When the RS485 interface is used, the instrument address stands in front of each command (Axxx_). in-commands: Asking for parameters or temperature values to be displayed. Parameter Command Response of programmable controller version none Number of software version (V X.xx) status none... - Page 47 Command Parameter Response of programmable controller in_mode_04 none Internal/external temperature control: 0 = Temperature control with Pt100 sensor „INT“. 1 = Temperature control with Pt100 sensor „EXT“. in_mode_05 none Circulator in Stop/Start condition: 0 = Stop 1 = Start in_par_01 none Time constant of the external bath.
- Page 48 Remote control Command Parameter Response of circulator out_mode_02 Continual identification of controlled system whenever a new setpoint is to be reached. out_mode_04 Temperature control with Pt100 sensor „INT“. Temperature control with Pt100 sensor „EXT“. out_mode_04 out_mode_05 Stop the programmable controller = r OFF. out_mode_05 Start the programmable controller.
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Page 49: Status Messages / Error Messages
11.4. Status messages / error messages The programmable controller sends data (including error messages) only when the computer sends a query. Status messages Description 00 MANUAL STOP Programmable controller in "OFF" state. 01 MANUAL START Programmable controller in keypad control mode. -
Page 50: Cleaning / Repairing The Unit
Periodic maintenance is not required. Clean the outside of the unit using a wet cloth and low surface tension water. Before asking for a service technician or returning a JULABO Repairs: instrument for repair, please contact an authorized JULABO service station.
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