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Summary of Contents for Julabo MA-4
- Page 1 English Operating Manual Heating Circulators MA-4 MA-6 MA-12 MA-26 JULABO USA, Inc. 884 Marcon Boulevard Allentown, PA 18109 Phone: +1(610) 231-0250 Fax: +1(610) 231-0260 info.us@ julabo.com www.julabo.com 19530347-V3.doc 15.02.16...
- 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. Technical specifications ..................9 Operating instructions ....................11 Safety notes for the user ..................11 3.1. - Page 4 Communication with a PC or a superordinated data system ....... 44 12.3. List of commands ..................45 12.4. Status messages ..................46 12.5. Error messages .................... 46 13. JULABO Service – Online remote diagnosis ............48 14. Cleaning / repairing the unit ................. 49 15. WARRANTY PROVISIONS ................. 50...
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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 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...
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Page 8: Disposal
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. -
Page 9: Technical Specifications
2.2. Technical specifications Open Bath Circulators MA-4 MA-6 MA-12 MA-26 Working temperature range °C 20 ... 200 20 ... 200 20 ... 200 20 ... 200 Temperature stability °C ±0,01 ±0,01 ±0,01 ±0,01 Bath opening (WxL) 13x15 13x15 22x15 22x30 Bath depth Filling volume from ... - Page 10 Operator responsibility – Safety recommendations 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 class III Supplementary safety installations Early warning system for low level float switch High temperature warning function optical + audible (in intervals)
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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 • 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.
- Page 13 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. •...
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Page 14: Operating Controls And Functional Elements
Operating controls and functional elements Operating controls and functional elements 4.1. Circulator Front view Rear view Mains power switch, illuminated Navigation keys 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... - Page 15 Control indicator – Cooling (without function) Control indicator – Alarm 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 Mains circuit breakers (resettable) 15 A...
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Page 16: Preparations
Preparations Preparations 5.1. Installation • Place the circulator in an upright position. • Place the unit on an even surface on a pad made of non- flammable material 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. -
Page 17: Temperature Application To External Systems
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: Tubing
Preparations 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 19: Filling / Draining
5.4. Filling / draining Notice: Pay attention to the thermal expansion of bath oil during heating to avoid overflowing of the liquid. Do not drain the bath fluid while it is hot! Check the temperature of the bath fluid prior to draining (by switching the unit on for a short moment, for example). - Page 20 For applications near ambient temperature (20 °C), the cooling water temperature should at least be 5 °C below the working temperature By installing the MVS controller (26) JULABO MVS and a solenoid valve (27), sudden temperature increases can be rapidly RS 232 reversed by tap water flowing through the built-in cooling coil.
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Page 21: 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 22: Setting Of Temperatures
Setting of temperatures 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. - Page 23 Refer to page 31 for switch-over to 3-temperature-mode CFG = CONFIGURATION 3SP = 3 SETPOINT Setting of working temperature in the menu 1. Press the key . The value >tx< flashes 2. Select SETPOINT >t 1< or >t 2< or >t 3< using the key 3.
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Page 24: Safety Installations, Warning Functions
Safety installations, warning functions Safety installations, warning functions Check the safety installations at least twice a year! Refer to ( page 13) 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 Menu item >... -
Page 25: Early Warning System, Low Level Protection
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. -
Page 26: Switch-Over From Warning To Shutdown Function
Safety installations, warning functions 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<. -
Page 27: Over And Sub Temperature Warning Function
8.3. Over and Sub temperature warning function Factory settings: 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<... -
Page 28: Menu Functions
Menu functions Menu functions The term „Menu functions“ refers to settings such as Menu level 1 >Pu< - Electronically adjustable pump capacity page 29 >CFG< - Configuration of the unit page 30 >3SP< - 3-setpoint mode >rt<... -
Page 29: Menu Pump - Setting Of Pump Pressure
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: Flow rate: 11 ... 16 l/m stage 1 Pump pressure: 0,22 ... 0,45 bar 1. -
Page 30: Menu Configuration
Menu functions 9.2. MENU Configuration Menu level 1 CFG = MENU CONFIGURATION A RESET can be effected only in the > < mode. Switch off circulator by pressing the key and call up the menu CONFIGURATION. Level 2 Parameter level Press the key if a parameter is to be... -
Page 31: Configuration Of The Mode Of The Key
AUTOSTART off. Notice: The circulator has been configured and delivered by JULABO in accordance with the NAMUR recommendations. This means for the start mode that the unit must enter a safe operating status after a power failure. This safe operating status is indicated by the message „OFF“... -
Page 32: Reset - Factory Setting
Menu functions 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<... - Page 33 Proportional range >Xp< The proportional range is the range below the setpoint in which the Setting range: control circuit reduces the heating capacity from 100% to 0 % 0.1 ... 99.9 Reset time >Tn< (Integral component) Compensation of the remaining control deviation due to proportional Setting range: regulation.
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Page 34: Menu Serial - Baudrate, Parity, Handshake
Menu functions 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... -
Page 35: Menu Atc - Absolute Temperature Calibration
9.5. MENU 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. Principle: Example: For ATC calibration, in steady state the bath temperature at the 1-point calibration location of the temperature sensor (CT) is determined at the respective adjusted working temperature. - Page 36 Menu functions >tYP< - ATC TYPE • The parameter flashes, switch by pressing 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<...
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Page 37: Atc Status - Yes / No
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. -
Page 38: Example: 3-Point Calibration For Internal Control
Menu functions 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 39 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.
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Page 40: Menu Limits
Menu functions 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). -
Page 41: Troubleshooting Guide / Error Messages
Replace the tubing and refill bath liquid. The float is defect (e.g. transport damage). Repair by authorized JULABO service personnel. During the self-test after switch-on a short –circuit is detected between pin 2 and pin 4 of the control line or the control line was disconnected during operation. - Page 42 Press the key for a non-recurring, automatic change of the configuration. In this case please call the JULABO Technical Service or an authorized dealer. Disturbances that are not indicated. The electronic pump motor is overload-protected by an electronic current limiter.
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Page 43: Electrical Connections
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). / Control output connector may be used for control of JULABO refrigerated circulators or as output for alarm messages. Circuit: Operation... -
Page 44: Remote Control
Remote control 12. Remote control 12.1. Setup for remote control • Check the interface parameters for both interfaces (on circulator and PC) and make sure they match. (Serial interface refer to page 34.) RS232C • In the menu >CFG< (Configuration) set the menu item >rt< (Remote) to >ON<... -
Page 45: List Of Commands
12.3. List of commands out commands: Setting parameters or temperature values. Command Parameter Response of circulator version None Number of software version (V X.xx) status none Status message, error message (see page 46 ) out_mode_01 Use working temperature >t 1< out_mode_01 Use working temperature >t 2<... -
Page 46: Status Messages
Remote control Command Parameter Response of circulator in_sp_02 none Working temperature „t 3“ in_sp_03 none High temperature warning limit „t High“ in_sp_04 none Low temperature warning limit „t Low“ in_sp_07 none Pump pressure stage in_par_01 none Te - Time constant of the external bath. in_par_02 none Si - Internal slope... - Page 47 ERROR MESSAGES Description -06 SENSOR DIFFERENCE ALARM Sensor difference alarm. Working temperature and safety sensors report a temperature difference of more than 35 K. -07 I2C-BUS ERROR Internal error when reading or writing the I2C bus. -08 INVALID COMMAND Invalid command. -09 COMMAND NOT ALLOWED IN Invalid command in current operating mode.
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Page 48: 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 49: Cleaning / Repairing The Unit
• When returning a unit, take care of careful and adequate packing. • JULABO is not responsible for damages that might occur from insufficient packing. JULABO reserves the right to carry out technical modifications with repairs for providing improved performance of a unit. -
Page 50: Warranty Provisions
WARRANTY PROVISIONS 15. WARRANTY PROVISIONS The following Warranty Provisions shall apply to products sold in North America by Julabo (“Seller”) to the entity shown as buyer (“Buyer”) on Seller’s invoice. Initial Warranty. Upon Seller’s receipt of payment in full for the products and subject to Buyer’s... - Page 51 INCIDENTAL OR CONSEQUENTIAL DAMAGES TO BUYER OR ANY THIRD PARTY AND ALL SUCH DAMAGES ARE HEREBY DISCLAIMED. Assignment. Buyer shall not assign any of its rights or obligations hereunder without the prior written approval of Seller; provided, however, that if Buyer is a distributor of Seller, the rights and obligations of Buyer under these Warranty Provisions shall inure to the benefit of and be binding upon Buyer’s customers who provide the product’s proof of purchase to Seller pursuant to the terms set forth herein.
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