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Heating Circulators
ME-4
ME-6
ME-12
ME-26
Open Bath Circulator
ME-39
Printed in Germany
Changes without prior notification reserved
1.951.0505 BE7 12/08
19510505_a.doc
Operating Manual
Innovative Temperature Technology
JULABO Labortechnik GmbH
77960 Seelbach / Germany
+49 (0) 7823 / 51-0
+49 (0) 7823 / 24 91
info@julabo.de
www.julabo.de
100
40
150
0
230
°C
ME
4
19.03.09
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Table of Contents
Related Manuals for Julabo ME-4
Summary of Contents for Julabo ME-4
- Page 1 ME-4 ME-6 °C ME-12 ME-26 Open Bath Circulator ME-39 Innovative Temperature Technology JULABO Labortechnik GmbH 77960 Seelbach / Germany +49 (0) 7823 / 51-0 +49 (0) 7823 / 24 91 Printed in Germany info@julabo.de Changes without prior notification reserved www.julabo.de 1.951.0505 BE7 12/08...
- 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 ............6 2.1. Disposal ........................8 2.2. Use in Sous-Vide cooking ..................8 2.3. EC Conformity......................9 2.4. Warranty conditions ....................9 2.5. - Page 4 12.1. Setup for remote control ...................55 12.2. Communication with a PC or a superordinated data system ........55 12.3. List of commands......................56 12.4. Status messages ......................58 12.5. Error messages......................58 13. JULABO Service – Online remote diagnosis..............60 14. Cleaning / repairing the unit...................61...
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Page 5: Operating Manual
Operating manual Intended use JULABO circulators have been designed to control the temperature of specific fluids in a bath tank. The units feature pump connections for temperature control of external systems (loop circuit). JULABO circulators are not suitable for direct temperature control of foods, semi-luxury foods and tobacco, or pharmaceutical and medical products. -
Page 6: Operator Responsibility - Safety Recommendations
Operator responsibility – Safety recommendations 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. - Page 7 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...
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Page 8: Disposal
2.2. Use in Sous-Vide cooking Some JULABO product may be used for low temperature cooking. Sous-Vide cooking should only be used by trained professionals. For proper food safety it is important to maintain precise and consistent conditions and a hygienic environment. -
Page 9: Ec Conformity
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 10: Technical Specifications
All measurements have been carried out at: rated voltage and frequency ambient temperature: 20 °C bath fluid: water operating temperature: 70 °C Technical changes without prior notification reserved. Heating circulators ME-4 ME-6 ME-12 ME-26 Bath opening (WxL) 13x15 13x15 22x15... - Page 11 Open Bath Circulators ME-39 Bath opening (WxL) 36x30 Bath depth Filling volume from ... to liters 33 ... 39 Overall dimensions (WxDxH) 54x34x52 Weight 19,0 Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ... 230 °C Low liquid level protection float switch Classification according to DIN 12876-1...
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Page 12: Operating Instructions
Operating instructions Operating instructions Operating controls and functional elements Front view Rear view Pt100 RS 232 °C Mains power switch, illuminated Start / stop key Key for selecting the working temperature - Setpoint 1, 2, 3 Key for selecting the warning and safety values MENU button - for selecting the menu functions Cursor keys (left or right) - Page 13 Display for the adjusted pump pressure stage Four stages, adjustable via the button, in the menu >PUMP<. Adjustable excess temperature protection according to IEC 61010-2-010 Socket: control cable of JULABO refrigerated circulator or output for alarm messages Interface RS232: remote control via personal computer RS232...
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Page 14: Safety Notes For The User
Safety notes for the user Safety notes for the user 4.1. 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. - Page 15 Repairs are to be carried out only by qualified service personnel. • Use of your JULABO product in Sous-Vide cooking should only be done by someone trained in proper Sous-Vide cooking techniques and safety. For proper food safety it is important to maintain precise consistent conditions and a hygienic environment.
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Page 16: Preparations
5.1. Installation Heating circulators • Place the unit on an even surface on a pad made of non- flammable material. °C ME-4 ME-6 ME-12 ME-26 Top view ME-39 • The circulator (A) fitted with a stainless steel bridge is placed on the right side of the bath tank leaving the bath open on the left side. -
Page 17: Bath Fluids
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., •... -
Page 18: Temperature Application To External Systems
Preparations 5.3. Temperature application to external systems Caution: Securely attach all tubing to prevent slipping. If the circulator is operated without external system, close the pump connector (24a) with the cap nut. The circulator is used for temperature application to external, closed systems (loop circuit) with simultaneous temperature application in the circulator bath. -
Page 19: Tubing
5.3.1. Tubing Recommended tubing: Order No. Length Temperature range ® 8 930 008 tubing 8 mm inner dia. -20 °C to 120 °C ® 8 930 010 tubing 10 mm inner dia. -20 °C to 120 °C 8 930 108 Viton tubing 8 mm inner dia. -
Page 20: Countercooling
Preparations Filling Take care that no liquid enters the interior of the circulator. • Cooking in the Sous-Vide method The recommended minimum filling level with water as bath fluid is 50 mm below the tank rim. • Recommended maximum filling level with water as bath fluid: 30 mm below the tank rim •... - Page 21 Mounting the cooling coil: Fix the cooling coil to the bridge. Installation cooling coil for ⇐ ME-39 Order no. 8 970 180 JULABO MVS By installing the MVS controller (26) and a solenoid valve (27), sudden temperature increases can be rapidly Pt100...
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Page 22: Operating Procedures
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 23: Autostart On / Off
AUTOSTART on AUTOSTART off Note: The circulator 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, resp. -
Page 24: Setting The Temperatures
Setting the temperatures Setting the temperatures Press the key to call up the menu for temperature selection. 3 different working temperatures are adjustable. Their values are freely selectable within the operating temperature range. Factory settings: SETP 1 25 °C This setting may be carried out with the circulator being in the Start or SETP 2 37 °C Stop condition! -
Page 25: Safety Installations, Warning Functions
Safety installations, warning functions Settings for the excess temperature protection > SAFETMP< according to IEC 61010-2-010 and for the high > OVERTMP< and low> SUBTMP< temperature warning functions are made in a menu that is called up with the SAFETMP OVERTMP Menu item >... -
Page 26: Early Warning System, Low Level Protection
Safety installations, warning functions 8.1.1. Early warning system, low level protection This low level protection is independent of the control circuit and is divided in two sections. 1. Switch in stage 1 recognizes a critical fluid level (patented) An audible warning (interval tone) sounds and a message appears on the VFD COMFORT-DISPLAY. -
Page 27: Over And Sub Temperature Warning Functions
8.2. Over and Sub temperature warning functions If for a sensitive temperature application task adherence to a working temperature value > SETP < is to be supervised, then set over and sub Over temperature temperature warning values. In the example below, the > SETP < of 85 °C is surrounded by the values >... -
Page 28: Change-Over Of The Warning Function To Shutdown Function
Safety installations, warning functions 8.2.1. Change-over of the warning function to shutdown function For the two menu items > OVERTMP< and >SUBTMP< choose between a warning message being signalled or a complete shutdown of the main functional elements such as heater and circulating pump being effected (see page 27). -
Page 29: Menu Functions
Menu functions The term „menu functions“ refers to adjustments such as electronically adjustable pump capacity page 30 PUMP PID Cascade Control, control parameters page 32 CONTROL CONTROL - internal or external control DYNAMIC - internal Control parameters - XP, TN, TV internal Control parameters - XP, TN, TV, XPU external Configurationen of the unit page 37... -
Page 30: Menu Pump - Setting The Pump Pressure
Menu functions • Menu level 1: Example: Press the button to scroll in menu level 1. Menu level 1 If the desired ( ) menu item is indicated on the VFD COMFORT- DISPLAY, press enter to change to menu level 2. •... - Page 31 The pump flow is pre-adjusted in the factory and can be modified to suit user requirements. • Using a screwdriver turn the screw (1) anti-clockwise by 360 °. • Using flat pliers turn the marking of the slide (2) to the desired position.
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Page 32: Menu Control - Control Parameters
Menu functions 9.2. MENU CONTROL – Control parameters CONTROL: Press enter to switch to menu level 2 >CONTROL< (INT / >DYNINT< (APER / NORM) >XP INT< (0.1 ... 99.9) >TN INT< (1 ... 9999) >TV INT< (0 ... 999) >CONTROL< / EXT) >XP EXT<... - Page 33 IMPORTANT: Additional measures for external temperature control. Suggested adjustments for external temperature control: BAND HIGH / LOW and INTERN MAX / MIN see chapter > LIMITS < on page 41. Sensor calibration of the external Pt100 sensor is carried out in the >MENU / ADJUST<, in the submenu >ATC SEN / EXT<...
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Page 34: Dyn Int - Dynamic Internal
Menu functions 9.2.2. DYN INT - Dynamic internal This parameter affects the temperature pattern only in case of internal control. Factory setting: APER (aperiodic) Possible parameters: NORM Allows for reaching the setpoint faster, but NORM overshooting of up to 5 % is possible. °C APER Target temperature is attained without... -
Page 35: Control Parameters - Xp, Tn, Tv Internal
9.2.3. Control parameters – XP, TN, TV internal The control parameters preset in factory are in most cases adequate for achieving an optimum temperature pattern for the samples requiring temperature application. Each parameter may be manually set via the keypad if necessary, to allow optimum control performance. -
Page 36: Control Parameters - Xpu, Xp, Tn, Tv External
Menu functions Inappropriate settings may produce the following heat-up curves: Xp too low Tv/Tn too low °C °C Xp too high or Tv too high Tv/Tn too high or Xp too high °C °C 9.2.4. Control parameters – XPU, XP, TN, TV external The control parameters preset in factory are in most cases adequate for achieving an optimum temperature pattern for the samples requiring temperature application. -
Page 37: Menu Config - Configuration
9.3. MENU CONFIG - configuration CONFIG : Press enter to switch to menu level 2 >SETP< (KEY / SERIAL ) Keypad control or remote control >OFFMODE< (PMP OFF / PMP ON) Motor on / off >RESET< ( NO / YES ) Factory settings >TIME<... -
Page 38: Off-Mode - Pump Motor On / Off
Menu functions 9.3.2. OFF-MODE – Pump motor on / off Normally the circulating pump is switched via the start/stop signal. XXXXX However, if circulation should be maintained also for the -OFF- condition, OFFMODE the parameter > PMP ON< needs to be set. PMP OFF Possible parameters: PMP ON... -
Page 39: Time / Date - Setting Time And Date
9.3.4. TIME / DATE – setting time and date The integrated clock allows starting a profile at any date and time. The clock is preset in the factory. XXXXX TIME Press the button until the submenu > TIME < or > DATE < is 16h4317 displayed. -
Page 40: Menu Serial - Baudrate, Handshake, Parity
Menu functions 9.4. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY XXXXX SERIAL : Press enter to switch to menu level 2 MENU SERIAL >BAUDRAT< >PARITY< Factory settings: >H-SHAKE< 4800 Bauds even hardware handshake For communication between circulator and a PC or a superordinated process system the interface parameters of bath units must be identical. -
Page 41: Menu Limits
9.5. MENU LIMITS XXXXX LIMITS : Press enter to switch to menu level 2 MENU LIMITS >SET MAX< >SET MIN< >HEATMAX< >COOLMAX< >INT MAX< In case of external control these menu items are >INT MIN< additionally indicated. >BAND H< >BAND L< Press the button until the desired submenu is displayed Set value:... - Page 42 Menu functions Factory settings Adjusted maximum heating / cooling. Heating and cooling powers of the circulator are adjustable. 100 % corresponds to the values in the technical specifications of the equipment. Setting range: HEAT MAX – 0 to 100 % in steps of 1 % COOLING MAX –...
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Page 43: Menu Program - Integrated Programmer
°C Sense of a band limit: Internal bath Ensures gentle heating for the objects requiring temperature external system application. Protects glass reactors, for example, from thermal shock. BAND LOW The INTMAX: and INTMIN: values are BAND HIGH superordinated to this band limit. 10 20 30 40 50 60 10 20 30 40 50 60 10 [min] 9.6. - Page 44 Menu functions The integrated programmer allows any desired temperature program sequences to be realized. Such a temperature sequence is called profile. A profile consists of individual sections defined by duration (t:) and target temperature. Target temperature is the setpoint (T:), that is achieved at the end of a section.
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Page 45: Description Of The Menu-Items
9.6.1. Description of the menu-items Starting a profile Start-MENU T he programmer can be started with the following 3 menu items. Condition: 1. First create a profile (see page 47 ) 2. Set a starting time (>TIME< >DATE<) if the start shall be effected with the internal clock timer (see page 46 ) 3. - Page 46 Menu functions Interrupting / Termination of a profile A profile can be terminated by pressing Power failure with the programmer started: – The reaction of the circulator is the same as when switched off and on again with the mains switch. The VFD COMFORT-DISPLAY indicates "OFF".
- Page 47 Compiling profiles, indicating sections Press the button until the submenu >PE STEP x< is displayed. Example: Section 2 1.1 Use the increase/decrease arrows to set the number of the XXXXX desired section (1, 2, 3, ... 10). PE STEP 1.2 Press to enter menu level 3.
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Page 48: Menu Adjust - Atc Absolute Temperature Calibration
Menu functions 9.7. MENU ADJUST – ATC Absolute 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. XXXXX ADJUST : Press enter to switch to menu level 2 MENU ADJUST... - Page 49 ATC SENSOR - INTERNAL / EXTERNAL In the first submenu the ATC function is set for the >INT< internal or XXX.X >EXT< external temperature sensor. ACT SEN Calibration can be carried out for the internal temperature sensor and for the external temperature sensor connected to the socket „ext. Pt100“. XXX.X The circulator is able to store both parameter sets.
- Page 50 Menu functions Example: Principle : 1-point calibration For ATC calibration, in steady state the bath temperature at the location of the temperature sensor (CT) is determined at the respective adjusted °C working temperature. This value is then set on the circulator in the menu >ATCalibration<...
- Page 51 Set controller to internal control: XXXXX The control type can only be adjusted in the -OFF- condition MENU Press the button until the menu item > MENU / CONTROL< is CONTROL displayed and press enter 1.1. Under the menu >CONTROL< set the parameter to > INT < and press enter (see page 32).
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Page 52: Troubleshooting Guide / Error Messages
Replace the tubing and replenish the bath tank with the bath fluid. • The float is defect (e. g., because damaged in transit). Repair by authorized JULABO service personnel. • During the self-test after switch-on a short-circuit is registered between pin ALARM... - Page 53 Replenish the bath tank with the bath fluid. CODE 40 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. Special message „CONFIGURATION ERROR“ XXXXX The configuration of the circulator does not conform to its present use.
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Page 54: Electrical Connections
8 980 073 RS232 interface cable 9-pol./9-pol. , 2,5 m 8 900 110 USB interface adapter cable / Control output connector may be used for control of JULABO refrigerated circulators or as output for alarm messages. Circuit: Operation = relay powered... -
Page 55: Remote Control
12. Remote control 12.1. Setup for remote control 1. Check the interface parameters for both interfaces (on circulator and PC) and make sure they match. (Serial interface see page 40) SERIAL 2. In the menu > MENU / CONFIG < set the menu item > SETPoint < to >... -
Page 56: List Of Commands
Remote control 12.3. List of commands out commands: Setting temperature values or parameters. Command Parameter Response of circulator out_mode_01 Use working temperature > SETP 1< out_mode_01 Use working temperature > SETP 2< out_mode_01 Use working temperature > SETP 3< out_mode_04 Temperature control of internal bath. - Page 57 in commands: Asking for parameters or temperature values to be displayed. Command Parameter Response of circulator version none Number of software version (V X.xx) status none Status message, error message (see page 58) in_pv_00 none Actual bath temperature. in_pv_01 none Heating power being used (%).
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Page 58: Status Messages
Remote control Command Parameter Response of circulator in_mode_01 none Selected setpoint: 0 = SETP 1 1 = SETP 2 2 = SETP 3 3 = Last setpoint setting was carried out through an external programmer Internal/external temperature control: in_mode_04 none 0 = Temperature control with internal sensor. - Page 59 Error messages Description -06 SENSOR DIFFERENCE ALARM Sensor difference alarm. Working temperature and safety sensors report a temperature difference of more than 25 °C. -07 I C-BUS ERROR Internal error when reading or writing the I C bus. -08 INVALID COMMAND Invalid command.
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Page 60: Julabo Service - Online Remote Diagnosis
JULABO Service – Online remote diagnosis 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. -
Page 61: Cleaning / Repairing The Unit
The circulator is designed for continuous operation under normal conditions. Periodic maintenance is not required. The tank should be filled only with a bath fluid recommended by JULABO. To avoid contamination, it is essential to change the bath fluid from time to time. Repairs...
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