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Summary of Contents for Julabo LC4
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Page 1: Operating Manual
English Operating manual Temperature controller JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info@julabo.de www.julabo.de 06/13 1.951.5200- 19515200-V2.doc 26.07.2013... - 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
INDEX OPERATING MANUAL ..................... 4 INTENDED USE ......................4 1.1. Description ......................4 OPERATOR RESPONSIBILITY – SAFETY RECOMMENDATIONS ......4 2.1. Disposal ......................6 2.2. EC Conformity ....................7 2.3. Warranty conditions ..................7 2.4. Technical specifications ..................8 OPERATING INSTRUCTIONS ..................10 SAFETY NOTES FOR THE USER ................. -
Page 4: Operating Manual
Operating manual Intended use Fulfilling its principle task, reliable temperature control and measurement, the LC4 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... - Page 5 If you have any questions concerning the operation of your unit or the information in this manual, please contact us! JULABO GmbH Tel. +49 (0) 7823 / 51-0 info@julabo.de Contact: Eisenbahnstraße 45 Fax +49 (0) 7823 / 24 91 www.julabo.de...
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Page 6: 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 7: 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 GmbH’s original invoice. -
Page 8: Technical Specifications
Operator responsibility – Safety recommendations 2.4. Technical specifications Adjustable temperature range °C -50 ..350 Display accuracy ±0.5 ± 1 Digit Temperature stability °C >±0.05 (depending on substances in the bath) Temperature selection digital via keypad indication on MULTI-DISPLAY (LED) remote control via computer indication on monitor Temperature display... - Page 9 Safety installations according to IEC 61010-2-010: Excess temperature protection 0 °C ... 350 °C Supplementary safety installations: Supervision of the working sensor plausibility control Alarm indication optical + audible (continuous tone) Environmental conditions according to EN 61 010, part 1: Use only indoor.
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Page 10: Operating Instructions
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 11 listed in this manual before installing or operating your unit. Never operate the unit without bath fluid in the bath. Observe the flash point of the bath medium used. The excess temperature protection should be set at least 25 °C below the fire point. ...
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Page 12: Operating Controls And Functional Elements
Operating controls and functional elements Operating controls and functional elements Rear view... - Page 13 Mains power switch, illuminated Start / stop key Working temperature setpoint Control parameter Tv (lead time) Control parameter Tn (resetting time) Control parameter Xp (proportional range) Safety temperature Adjustable excess temperature protection(safety temperature) Indication of working temperature MULTI-DISPLAY (LED) temperature indication Indicator light - Alarm Indicator light - Cooling Indicator light - Heating...
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Page 14: Operating Procedures
Operating procedures Operating procedures 5.1. Installation The unit should be set up at a dry location. the unit in an upright position and do not obstruct the Place 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 15: Connecting A Heating Device
5.3. Connecting a heating device Caution: Set up the heating device according to the instructions or securely fix the unit in the bath tank using appropriate means. Danger of burning and fire! Connect the power plug to the grounded mains socket (18) on the rear of the controller. -
Page 16: Applications
Whenever countercooling is necessary (in case of temperature application near the ambient temperature), cooling in the bath is performed through a cooling coil connected to a solenoid valve and the MVS controller. JULABO MVS Connector: Working sensor Working sensor... -
Page 17: Switching On / Start - Stop
Indirectly heated bath liquid: The bath liquid is indirectly heated. Working and safety sensors must both be immersed in the bath liquid. 5.6. Switching on / Start - Stop Switching on: Turn on the mains power switch. The unit performs a self-test. A signal sounds, and all segments of the two 4-digit displays as well as all indicator lights will illuminate. - Page 18 Operating procedures The display "OFF" or "r OFF" indicates the controller is ready to operate. Also the effective working temperature setpoint is indicated (example: 20.0 °C). The controller enters the operating mode activated before switching the controller off, keypad control mode (manual operation) or remote control mode (operation via personal computer).
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Page 19: Setting The Temperatures
5.7. Setting the temperatures Setting the working temperature: Press the setpoint key The indicator light blinks and the effective value appears on the MULTI-DISPLAY (LED). Use the cursor keys to move left or right on the display until the numeral you wish to change is blinking. Use the increase/decrease arrows to change the selected numeral (-, 0, 1, 2, 3, ... - Page 20 Operating procedures Setting the Tn (resetting time) Press the key The indicator light blinks and the effective value for Tn appears on the MULTI-DISPLAY (LED). Follow the instructions (example: 1200 s). Setting range for Tn: 1 to 9998 s. With Tn set to 9999, the integral part of the controller is deactivated (use of a P or PD type controller).
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Page 21: Optimization Instructions For The Pid Control Parameters
5.8.1. Optimization instructions for the PID control parameters The heat-up curve reveals inappropriate control settings. °C optimum setting Inappropriate settings may produce the following heat- up curves: °C Xp too low °C Tv/Tn too low °C Xp or Tv too high °C Tv/Tn or Xp too high... -
Page 22: Setting The Safety Temperature (With Shutdown Function)
Operating procedures 5.9. 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). 0 °C to 360 °C Setting range: in 2 °C steps... -
Page 23: Menu Functions
Menu functions Parameters and values are set via the menu level that may be selected at any time. Enter or exit the menu level by pressing the left arrow enter at the same time. Using the cursor keys select the menu functions one by one. -
Page 24: Temperature Range: Hl / Ll
Menu functions 6.2. Temperature range: HL / LL The laboratory controller LC4 features the possibility to limit the working temperature range to protect thermally sensitive substances. Setting the upper limit With the edit keys change the menu function from “HL 0”... - Page 25 For each parameter set, the control parameters Xp, Tn and Tv may be individually modified and stored (see page 19). Preference: Quick access to parameters determined during previous applications. Factory-preset parameter sets for the following controlled processes: Set 1: Xp = 4 °C Directly heated liquid bath Tn = 150 s Filling volume: 4.5 litres of water...
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Page 26: Active Countercooling: Pc
6.4. Active countercooling: Pc For applications near the ambient temperature, countercooling might become necessary. For this purpose, connect the JULABO MVS solenoid valve controller to the / alarm socket (application example see page 16). The supply of a cooling pulse "Pc" must be activated on the controller. -
Page 27: Interface Parameters: R - Br - P - H
6.6. Interface parameters: r - br - P - H Whenever the parameter setting of the controller is not conform to RS232C those of the connected personal computer, a modification is necessary. Factory setting of the RS232 interface: Baudrate: 4800 Bauds Parity: 2 (even) Handshake: 1 (Hardware handshake) -
Page 28: Troubleshooting Guide / Error Messages
If the error reappears, contact an authorized JULABO service station. If necessary have the unit checked by a JULABO service technician. Mains fuses The mains fuses on the rear of the unit may easily be exchanged as shown on the left. -
Page 29: Electrical Connections
Electrical connections Grounded mains socket Connector for heating device Maximum 1000 W resistive load at 115 V. Maximum current 5 A. Maximum 2000 W resistive load at 230 V. Maximum current 10 A. Notice: Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing. - Page 30 Electrical connections RS232C serial interface This port can be used to connect a computer with an RS232C cable for remote control of the controller. RS232 serial interface This port can be used to connect a computer with an RS232 cable for remote control of the circulator.
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Page 31: Remote Control
Remote control 9.1. 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 controller is put into remote control mode via the configuration level, the display will read "r OFF"... -
Page 32: List Of Commands
Remote control 9.2. List of commands Befehl Parameter Description version none Number of software version (V X.xx) status none Status message, error message (see page 34) out_mode_05 Stop the controller = r OFF out_mode_05 Start the controller out_mode_02 Parameter set 1 effective for control out_mode_02 Parameter set 2 effective for control out_mode_02... - Page 33 Command Parameter Description out_par_04 xxx.x Set Tn of parameter set 2 in_par_04 none Ask for Tn of parameter set 2 out_par_05 xxxx.x Set Tv of parameter set 2 in_par_05 none Ask for Tv of parameter set 2 out_par_06 xxx.x Set Xp of parameter set 3 in_par_06 none Ask for Xp of parameter set 3...
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Page 34: Status Messages
Remote control 9.3. Status messages Message Description 00 MANUAL STOP Controller in "OFF" state 01 MANUAL START Controller in keypad control mode 02 REMOTE STOP Controller in "r OFF" state 03 REMOTE START Controller in remote control mode 9.4. Error messages Description Message Safety temperature alarm... -
Page 35: 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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