English Operating Manual Heating Immersion Circulator MA JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 info@julabo.de www.julabo.de 1.951.0332-V2 19510332-V2.doc 06/13 12.07.
Operating manual 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.
MA TABLE OF CONTENTS Operating manual ..........................................................................................................5 1. Intended use ..........................................................................................................5 1.1. Description .........................................................................................................5 2. Operator responsibility – Safety recommendations ...............................................6 2.1.
Operating manual 8.1.1. Early warning system, low level protection .............................................. 26 8.2. Switch-over from warning to shutdown function .............................................. 27 8.3. Over and Sub temperature warning function ................................................... 28 9. Menu functions ......................................................................................... 29 9.1. MENU PUMP – Setting of pump pressure .....................................
MA Operating manual 1. Intended use JULABO circulators have been designed to control the temperature of specific fluids in a bath tank. JULABO circulators are not suitable for direct temperature control of foods, semi-luxury foods and tobacco, or pharmaceutical and medical products. Direct temperature control means unprotected contact of the object with the bath medium (bath fluid). 1.1. Description The circulators are operated via the splash-proof keypad.
Operator responsibility – Safety recommendations 2. Operator responsibility – Safety recommendations The products of JULABO ensure safe operation when installed, operated, and maintained according to common safety regulations. This section explains the potential dangers that may arise when operating the circulator and also specifies the most important safety precautions to preclude these dangers as far as possible. The operator is responsible for the qualification of the personnel operating the units.
MA Appropriate operation Only qualified personnel is authorized to perform configuration, installation, maintenance and repairs of the circulator. Routine operation can also be carried out by untrained personnel who should however be instructed by trained personnel. Use: The bath can be filled with flammable materials. Fire hazard! There might be chemical dangers depending on the bath medium used. Observe all warnings for the used materials (bath fluids) and the respective instructions (safety data sheets).
Operator responsibility – Safety recommendations 2.1. Disposal The circulator contains a back-up battery that supplies voltage to memory chips when the unit is switched off. Do not dispose of the battery with household waste! Depending on battery regulations in your country, you might be obliged to give back used or defect batteries to gathering places. The product may be used with oil as bath fluid. These oils fully or partially consist of mineral oil or synthetic oil.
MA 2.2. EC Conformity The products described in the operating instructions conform to the requirements of the following European guidelines: Directive of the European Parliament and of the Council on the approximation of the laws of the Member States relating to machinery. EMC guideline with respect to legal harmonization of the member countries concerning electromagnetic compatibility. JULABO GmbH Eisenbahnstr. 45 77960 Seelbach / Germany 2.3.
Operator responsibility – Safety recommendations 2.4. Technical specifications Heating Immersion Circulator Working temperature range Temperature stability Overall dimensions (WxDxH) Usable bath depth Weight °C °C cm cm kg MA 20 ... 200 ±0,01 13x15x33 from 8 to 14.5 4.0 All measurements have been carried out at: rated voltage and frequency operating temperature: 70 °C ambient temperature: 20 °C bath fluid: water Technical changes without prior notification reserved.
MA Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ...
Operating instructions Operating instructions 3. 3.1. Safety notes for the user 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).” The danger is classified using a signal word. Read and follow these important instructions for averting dangers.
MA 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. Set the excess temperature safety installation at least 25 °C below the fire point of the bath fluid. Observe the limited working temperature range when using plastic bath tanks. Never operate the unit without bath fluid in the bath.
Safety notes for the user The user alone is responsible for the handling of these substances! The following questions shall help to recognize possible dangers and to reduce the risks to a minimum. Are all tubes and electrical cables connected and installed? Note: sharp edges, hot surfaces in operation, moving machine parts, etc.
MA 4. 4.1. Operating controls and functional elements Circulator Front view 1 Rear view Mains power switch, illuminated Navigation keys 2 1. Key: >OK< Start / Stop (pump / heater ) 2. >OK< in the menu Menu item / select submenu for setting Save set value Save selected parameter A beep signals the end of setting After the actions Start, Stop and change from VFD Display to is locked for a short time. standard display the key The above graph “front side” shows an example for standard display. 3 1.
Operating controls and functional elements 4 1. Key: >Up / Down Up/Down< in the menu selection of menu items / parameters Navigation aids Flashing segments show the position within the structure of the menu. Item „P“ flashes simultaneously in the submenu.
MA 5. 5.1. Preparations Installation Caution: Securely fix the immersion circulator. The heater may not be in contact with the wall of the bath tank. Keep a distance of at least 15 mm. Units not adequately fixed may drop into the bath tank. Danger of electric shock! First pull out the power plug to disconnect the unit from the power supply net. Then take the immersion circulator out of the bath tank. Make a service technician check the instrument before it is used again.
Preparations 5.2. Bath fluids Caution: Carefully read the safety data sheet of the bath fluid used, particularly with regard to the fire point! If a bath fluid with a fire point of 65 °C is used, only supervised operation is possible. Water: The quality of water depends on local conditions. Due to the high concentration of lime, hard water is not suitable for temperature control because it leads to calcification in the bath. Ferrous water can cause corrosion - even on stainless steel.
MA Caution: Fire or other dangers when using bath fluids that are not recommended: Please contact JULABO before using other than recommended bath fluids. Use only nonacidic and noncorrosive bath fluids. JULABO assumes no liability for damage caused by the selection of an unsuitable bath liquid. Unsuitable bath fluids are fluids which, e.g.
Preparations 5.3.2. Tubing Recommended tubing: Order No. Length 8 930 008 1 m CR® tubing 8 mm inner dia. 8 930 010 1 m CR® tubing 10 mm inner dia. 8 930 108 1 m Viton tubing 8 mm inner dia. 8 930 110 1 m Viton tubing 10 mm inner dia. 8 930 410 1 m Insulation for tubing 8 mm or 10 mm inner dia.
MA 5.4. Countercooling Notice: Securely attach all tubing to prevent slipping. Observe the laws and regulations of the water distribution company valid in the location where the unit is operated. For applications near the ambient temperature, the cooling coil (order no. 8 970 105) must be connected to the water mains. 25b 25a 21 Mounting the cooling coil: Remove the bath attachment clamp (21). Screw the cooling coil to the circulator, and then fix the bath attachment clamp to the cooling coil.
Operating procedures 6. 6.1. Operating procedures 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. Never operate equipment with damaged mains power cables. Regularly check the mains power cables for material defects (e.g. for cracks).
MA 7. Setting of temperatures The function of the key is configurable. 1. If the key is pressed, normally only one adjustable working temperature is displayed (factory setting). 2. Using the Menu Configuration which is started by pressing the key a menu with three pre-set setpoints can be assigned to the key. Press 7.1. key if a value is to be retained. 1-setpoint mode / Direct setting of temperatures The circulator uses the setpoint of t1 or t2 or t3 for temperature control.
Setting of temperatures Refer to page 32 for switch-over to 3-temperature-mode CFG = CONFIGURATION 3SP = 3 SETPOINT Setting of working temperature in the . The value >tx< 1. Press the key menu flashes 2. Select SETPOINT >t 1< or >t 2< or >t 3< using the key or . 3. Confirm by pressing the key. The circulator uses the new working temperature value for temperature control. Example: setting / adjustment of of pre-settings of "t 3" 1. Press the key. The parameter >tx< flashes. 2.
MA 8. Safety installations, warning functions Check the safety installations at least twice a year! Refer to ( page 14) Settings for the excess temperature protection > tSA< and for the warning functions for high > tHi< and low > tLo< temperature are made in a menu which is called up by pressing the . key Menu item > Aty (ALARM-TYPE)< allows choosing between a warning and an alarm cut-off for the menu items > tHi < and >tLo<. 8.1.
Safety installations, warning functions 8.1.1. Early warning system, low level protection Warning: For refill always use the same bath fluid type that is already in the bath. Bath oils must not contain any water contaminants and should be pre-heated to the actual bath temperature! Explosion hazard at higher temperatures! This low level protection is independent of the control circuit and is divided in two sections. 1. Switch in stage 1 recognizes a defined fluid level .
MA 8.2. Switch-over from warning to shutdown function If a shutdown of functional elements (e.g. heater, circulating pump) is required when the limit values are exceeded or undercut the circulator can be changed over from warning function >WARNING< to shutdown function >ALARM<. Factory setting: >0 = WARNING< 1. Press the key . 2. Select the menu >Aty (ALARM-TYPE)< by pressing the key. 3. Press the (Example: 0) key and the set parameter will flash . 4.
Safety installations, warning functions 8.3. Over and Sub temperature warning function Factory settings: Over temperature t High 205 °C Sub temperature t Low -55 °C If the observance of a working temperature value >t 3< has to be supervised for a sensitive temperature application, then set over and sub temperature warning values. In the example below the setpoint >t 3< 85 °C is surrounded by the values >t High< 87 °C and >t Low< 83 °C.
MA 9.
Menu functions 9.1. MENU PUMP – Setting of pump pressure The capacity of the circulating pump is set by adjusting the motor speed Settings: stage 1 ... 4 Factory setting: stage 1 Flow rate: Pump pressure: 1. Press the 2. Press the 11 ... 16 l/m 0,22 ... 0,45 bar key. Menu >Pu< is indicated. key. The set parameter flashes (example: > 2<) 3. Change the parameter by pressing or and confirm by pressing the key. or Press the key if the parameter is to be retained.
MA 9.2. MENU Configuration Menu level 1 CFG = MENU CONFIGURATION A RESET can be effected only in the > Switch off circulator by pressing the CONFIGURATION. Level 2 Parameter level < mode. key and call up the menu Press the key if a parameter is to be retained. Correction function for parameters and values (prior to OK). >3SP< - Switch on and off the 3-setpoint mode or The parameter flashes, set by pressing + >YES< - This function can be used by pressing the key.
Menu functions 9.2.1. Configuration of the mode of the key Pressing the key normally indicated only one working temperature which can be individually adjusted. Factory setting: no The configuration opens a menu with 3 setpoints which can be preset. >no< >YES< 9.2.2.
MA Warning: For supervised or unsupervised operation with the “AUTOSTART“ function avoid any hazardous situation to persons or property Take care to fully observe the safety and warning functions of the circulator. 9.2.4. Reset - Factory setting >YES< resets all values to factory setting. A >rSt< RESET can be effected in the > Switch off the circulator by pressing the key menu CONFIGURATION. < mode only. and call up the During the message – init - all parameters are reset to factory settings 9.3.
Menu functions Proportional range >Xp< Setting range: 0.1 ... 99.9 The proportional range is the range below the setpoint in which the control circuit reduces the heating capacity from 100% to 0 % Reset time >Tn< (Integral component) Setting range: 3 ...9999 Compensation of the remaining control deviation due to proportional regulation. An insufficient reset time may cause instabilities. Excessive reset times will result in unnecessary prolongation of compensation of the control difference.
MA 9.4. MENU SERIAL - BAUDRATE, PARITY, HANDSHAKE Menu level 1 For communication between circulator and a PC or a superordinated process control system the interface parameters of both units must be identical. Factory settings: 4800 Baud even hardware handshake Level 2 Parameter level Press the key if a parameter is to be retained. >br< - BAUDRATE The parameter flashes, switch by pressing and 4.8 = 9.6 = 19.2 = 38.
Menu functions 9.5. MENU ATC - Absolut Temperature Calibration ATC serves to compensate a temperature difference that might occur between circulator and a defined measuring point in the bath tank because of physical properties. Principle: For ATC calibration, in steady state the bath temperature at the location of the temperature sensor (CT) is determined at the respective adjusted working temperature. This value is then set on the circulator in the menu >ATCalibration< under menu item >Ctx<.
MA >tYP< - ATC TYPE The parameter flashes, switch by pressing and A >1-point<, >2-point< or >3-point< calibration can be carried out. The value > tt1< is only indicated In addition the measured temperature value >Ct 1< is saved during the next step.
Menu functions 9.5.1. ATC STATUS - YES / NO In the second submenu the ATC function for the temperature sensor selected above is activated >YES< or deactivated >NO<. >YES< (factory setting) The controller of the circulator uses the original curve of the temperature sensor or the new curve measured during the ATC calibration. Important: Set to >NO< during the calibration process >NO< An ATC calibration is to be carried out. Important: Set to >YES< after calibration.
MA 9.5.3. Example: 3-point calibration for internal control In the temperature range from 80 °C to 160 °C the calibration curve of the temperature sensor (TT) is to be adjusted to the actual temperatures at measuring point (CT). 1. Set working temperature setpoint : Refer to „Direct temperature setting “ page 23 or the circulator switches to the 1. By pressing the key active >SETPOINT< see example on the left: >t1 25.00°C<. The integer digits flash (Example: <25>). 2. Change the value to 80.
Menu functions The value >tt1< is only indicated Setting >Ct 1< by using the keys. Integer digits flash, set by pressing (79) + Decimal digits flash, set by pressing (70) + The first of 3 points is calibrated. Return to 1. Set working temperature value: 120.00 °C The value >tt2< is only indicated Setting >Ct 2< by using the keys. Integer digits flash, set by pressing (119) + Decimal digits flash, set by pressing (5) + The second of 3 points is calibrated. Return to 1.
MA 9.6. MENU LIMITS Menu level 1 >Li< = LIMITS – limitation of operating temperature range Maximum and minimum setpoint Restriction of the adjustable temperature range. Level 2 Parameter level Press the key if parameter is to be retained. Correction function for parameters or values (prior to OK).
Troubleshooting guide / error messages 10. Troubleshooting guide / error messages + Alarm with complete shutdown: If one of the following failures occur a complete, all-pole shutdown of the heater and circulating pump is effected. “ lights up and a continuous signal sounds. „ The code for the cause of alarm is indicated on the MULTI-DISPLAY (LED).
MA Error in A/D converter Excess temperature protector defect. The protection temperature is below the set working temperature setpoint. Set the protection temperature to a higher value. The cable of the excess temperature protector has been disconnected or short-circuited The early warning system for low level reports a critical fluid level. Refill bath fluid. 60 45 4s 30 15 By quickly switching off and restarting the unit the alarm is cancelled.
Electrical connections 11. Electrical connections Notice: Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing. The unit ensures safe operation if connecting cables with a maximum length of 3 m are used. The use of longer cables does not affect proper performance of the unit, however external interferences may have a negative impact on safe operation (e.g. cellular phones).
MA 12. Remote control 12.1. Setup for remote control 5 1 9 6 RS232C Check the interface parameters for both interfaces (on circulator and PC) and make sure they match. (Serial interface refer to page 35.) In the menu >CFG< (Configuration) set the menu item >rt< (Remote) to >ON< . (refer to page 32). Connect both units with an interface cable. Like all parameters which can be entered through the keypad, interface parameters are stored in memory even after the circulator is turned off.
Remote control 12.3. List of commands out commands: Setting parameters or temperature values. Command Parameter Response of circulator version status None none Number of software version (V X.xx) Status message, error message (see page 47 ) out_mode_01 out_mode_01 out_mode_01 out_mode_05 out_mode_05 0 1 2 0 1 Use working temperature >t 1< Use working temperature >t 2< Use working temperature >t 3< Stop the unit = R –OFF-. Start the unit.
MA Command in_sp_03 in_sp_04 in_sp_07 Parameter none none none Response of circulator High temperature warning limit Low temperature warning limit Pump pressure stage in_par_01 in_par_02 in_par_03 in_par_06 in_par_07 in_par_08 none none none none none none Te - Time constant of the external bath. Si - Internal slope Ti - Time constant of the internal bath. Xp control parameter of the internal controller. Tn control parameter of the internal controller. Tv control parameter of the internal controller.
Remote control ERROR MESSAGES Description -06 SENSOR DIFFERENCE ALARM Sensor difference alarm. Working temperature and safety sensors report a temperature difference of more than 35 K. Internal error when reading or writing the I2C bus. Invalid command. Invalid command in current operating mode.
MA 13. JULABO Service – Online remote diagnosis JULABO circulators of the HighTech series are equipped with a black box. This box is implemented in the controller and records all significant data for the last 30 minutes. In case of a failure, this data can be read out from the unit by using special software. This software is available as a free download from www.julabo.de \ EasyBlackBox. Installation is easy and is performed step by step. Please observe the instructions.
Cleaning / repairing the unit 14. Cleaning / repairing the unit Caution: Always turn off the unit and disconnect the mains cable from the power source before cleaning the unit. Prevent humidity from entering into the circulator. Electrical connections and any other work must be performed by qualified personnel only. Cleaning: For cleaning the bath tank and the immersed parts of the circulator, use low surface tension water (e.g., soap suds).
