Julabo F38-ME Operating Manual
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Julabo F38-ME Operating Manual

Julabo F38-ME Operating Manual

Beer forcing test refrigerated/heating circulating bath
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Operating Manual
ME
Beer Forcing Test
Refrigerated/Heating
Circulating Bath
F38-ME
Printed in Germany
Changes without prior notification reserved
1.951.0541
01/11
19510541.doc
JULABO Labortechnik GmbH
77960 Seelbach / Germany
+49 (0) 7823 / 51-0
+49 (0) 7823 / 24 91
info@julabo.de
www.julabo.de
English
24.01.11

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  • Page 1 English Operating Manual Beer Forcing Test Refrigerated/Heating Circulating Bath F38-ME 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 1.951.0541 01/11 www.julabo.de 19510541.doc...
  • Page 2 For the general use in the laboratory the refrigerated and heating circulator F38-ME offers a lot of setting possibilities, which are not necessary for doing a „Forcing Test“.

  • 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 ..........................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 12.1. Setup for remote control ....................62 12.2. Communication with a PC or a superordinated data system ..........63 12.3. List of commands.......................64 12.4. Status messages .......................66 12.5. Error messages........................66 13. JULABO Service – Online remote diagnosis................68 14. Cleaning / repairing the unit....................69...

  • 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 JULABO forcing test refrigerated/heating circulating bath in connection with a photometer determines the product life of beer without clouding.

  • 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: 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

    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 F38-ME Working temperature range °C -38 ... 80 Temperature stability °C ±0,05 Temperature selection digital via keypad VFD COMFORT-Display remote control via personal computer indication on monitor Temperature indication VFD COMFORT-Display Resolution °C Absolute Temperature Calibration INT/EXT °C...
  • 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)

  • 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 Recommendations

    Safety notes for the user 3.3. Safety recommendations Follow the safety instructions to avoid personal injury and property damage. Also, the valid safety instructions for workplaces must be followed. • Only connect the unit to a power socket with an earthing contact (PE – protective earth)! •...
  • Page 13 Caution: The temperature controlling i.e. of fluids in a reactor constitutes normal circulator practice. We do not know which substances are contained within these vessels. Many substances are: • inflammable, easily ignited or explosive • hazardous to health • environmentally unsafe i.e.: dangerous The user alone is responsible for the handling of these substances! The following questions shall help to recognize possible dangers and to reduce the...

  • 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 Four stages, can be set via the key , under >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...

  • Page 16: Cooling Machine

    Rear view Mains power switch, illuminated for cooling machine Socket: control cable of JULABO refrigerated circulator Mains fuses for cooling machine, T10A, D5 x 20 mm Mains power cable with plug for circulator Mains power cable with plug cooling machine...

  • Page 17: Preparations

    > For 0.48 kg of refrigerant R404A, a room space of 1 m is required. • F38-ME: The circulator fitted with a stainless steel bridge is placed on on the back of the bath tank leaving the bath open on the front side. •...

  • Page 18: 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 19: Filling / Draining

    5.3. 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: 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 21: Switching On The Cooling Machine

    Start: • Press key. The actual bath temperature is displayed on the VFD COMFORT- DISPLAY. The circulating pump starts with a slight delay. Stop: • Press key. Keep key pressed. The VFD COMFORT-DISPLAY indicates the message "OFF". 6.2.2. Switching on the Cooling Machine Switching on: •...

  • Page 22: Setting Of Temperatures

    Setting of temperatures Setting of temperatures 7.1. Using the pre-settings in the menu Press the key to call up the menu for temperature selection. 3 different working temperatures can be adjusted. Their values are freely selectable within the operating temperature range. The temperatures can be set in start or stop mode.

  • Page 23: Direct Setting Of Temperatures

    7.2. Direct setting of temperatures The circulator uses the setpoint of SETPNT 1 or 2 or 3 for temperature control The indicated setpoint temperature can be changed directly any time. Example: change 25.00 °C to 50.00 °C 1. By pressing the key the circulator switches to the active SETPOINT<...

  • 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) SECVAL Settings for the excess temperature protection > SAFETMP< (Security Values) and for the warning functions for high > OVERTMP< and low > SAFETMP SUBTEMP<...

  • Page 25: Early Warning System, Low Level Protection

    8.1.1. Early warning system, low level protection This low level protection is independent of the control circuit and is divided into two sections: 1. Switch in stage 1 recognizes a defined fluid level An audible warning sounds (interval tone) and together with the ticker: >...

  • 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 If the observance of a working temperature value >SETP< has to be supervised for a sensitive temperature application, then set over and sub Over temperature temperature warning values. In the example below the SETPOINT 85 °C is surrounded by the values OVERTMP 87 °C and SUBTEMP 83 °C.

  • Page 28: Menu Functions

    Menu functions Menu functions The term „Menu functions“ refers to settings such as Menu level 1 Start program Page 29 Mode Forcing test Mode Standard Administration and creation of programs Page 32 Mode Forcing test Mode Standard Electronically adjustable pump capacity Page 35 Configuration of the unit Page 41...

  • Page 29: Menu Program - Start

    9.1. MENU PROGRAM – START 9.1.1. START Mode Forcing test This menu will start a previously set program. Requirements: 1. Create a program. (refer to chapter >MENU PROGRAM<) Start-Menu 2. Return to the Start-MENU and confirm the desired setting of each MENU item with the key Press the key if a parameter is to be retained.
  • Page 30 Menu functions Level 2 Parameter level Press the key if a parameter is to be retained. Correction function for parameters or values (prior to • Set program step with example: STEP 1 • Set number of runs with example: 1 run •...
  • Page 31 >YEAR< year • Set the year with The program starts at the set time. Display of time until start: In line 3 the notice >TIMER< and the set values for „TIME“ and „DATE/YEAR“ are alternately indicated Check the correct setting of the internal real time clock if required (see MENU CONFIG) The started program After the start the program will indicate the currently calculated setpoint in line...

  • Page 32: Menu Program - Creation, Administration

    Menu functions 9.2. MENU PROGRAM – creation, administration Program Mode Set this menu item first! In the >MENU PROGRAM< you can choose between the „Standard Program“ and the „Forcing Test-Program“. This setting determines which submenu items are available in >PROGRAM EDIT<...
  • Page 33 Menu level 1 Press key, if a parameter is to be retained. Correction function for parameters or values (prior to OK) Level 2 Level 3 Parameter level Set temperature setpoint of the warm phase (°C). • Integer digits flash, set by pressing •...

  • Page 34: Standard Program

    Menu functions 9.2.2. STANDARD Program The integrated programmer permits fast and easy programming of setpoint Menu level 1 temperature sequences. This temperature sequence is called program. A program is composed of individual sections (STEP). The sections are defined by duration (TSLICE) and target temperature. The target temperature is the setpoint (SETPNT), which is achieved at the end of a section.
  • Page 35 Menu level 1 >EDIT< Create, administer program > STEP< Program step (1 ... 10) >SETPNT < Temperature setpoint of step ... >TSLICE< Duration of step ... > DELETE< delete program step (01 … 10, ALL) Press key, if a parameter is to be retained. Correction function for parameters or values (prior to OK) Level 2 Level 3...

  • Page 36: The Easy Way To The Forcing Test

    Menu functions 9.2.3. The easy way to the forcing test Notice: On the forcing test avoid low level alarm CODE 1. The program is cancelled. On a restart the count of the cycles (CYCLE) restarts from zero. Refill the bath liquid in time! 1.
  • Page 37 9. Set MENU Program to >Mode Forcier< See page 32 10. Start the forcing test As factory-setting the „Forcing test 60 °C“ is stored Measuring cycle:RUNS 1 flow (48 h) Warm phase W-TEMP 60 °C Duration W-TIME 24 h Cool phase C-TEMP 0 °C Duration...
  • Page 38 Menu functions Program sequence: Example forcing test 60 °C As factory-setting the „Forcing Test 60 °C“ is stored Measuring cycle: RUNS 1 repetition Warm phase W-TEMP 60 °C Duration W-TIME 24 h Cool phase C-TEMP 0 °C Duration C-TIME 24 h In the course of the program the VFD-DISPLAY shows messages concerning the process of the forcing test in line 2 and 3.
  • Page 39 Beginning of the STARTUP-phase First the circulators tempers to the measuring temperature. Line 2: S 20.00 (SETPNT 1) is shown (Example: 20.0 °C) Line 3: Message 1 >STARTUP<, Message 2 >RUN< >00h00.00<. (The time of the start phase is not defined). 3.

  • Page 40: Menu Pump - Setting Of Pump Pressure

    Menu functions 9.3. MENU PUMP – Setting of pump pressure The capacity of the circulating pump is set by adjusting the motor speed Settings: stage / LEVEL 1 ... 4 Display: with illuminated indicator Flow rate: 11 ... 16 l/m Pump pressure: 0,22 ...

  • Page 41: Menu Config - Configuration Of Unit

    9.4. MENU CONFIG – Configuration of unit Menu level 1 A RESET can be effected only in the >OFF< 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 retained.

  • Page 42: Remote

    Take care to fully observe the safety and warning functions of the circulator. Notice: Factory settings: OFF 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.

  • Page 43: Off-Mode

    interface. If such a safety standard is not required, the NAMUR recommendations can be bypassed with the AUTOSTART function thus allowing a direct start of the circulator by pressing the mains switch or using a timer. 9.4.3. OFF-MODE Usually the circulating pump is controlled with the key or the Factory setting: start/stop command.

  • Page 44: Menu Control - Control Characteristics And Parameters

    Menu functions 9.5. MENU CONTROL – Control characteristics and parameters Menu level 1 The circulator is qualified for internal and external temperature control The switchover is carried out in the menu >C-TYPE< .(INT or EXT). For external temperature control and measurement connect a Pt100 external sensor to the socket at the rear of the circulator.

  • Page 45: Control - Control Internal / External

    Level 2 Parameter level • The parameter flashes, set by pressing 0 … 999 • The parameter flashes, set by pressing 0.1 … 99.9 9.5.1. CONTROL – Control INTERNAL / EXTERNAL Switchover can only be effected if a Pt100 external sensor is connected.

  • Page 46: Dynamic Internal

    Menu functions 9.5.2. Dynamic internal This parameter affects the temperature sequence only in case of internal control. Factory setting: APER (aperiodic) NORM °C temp. stability Possible parameters: APER NORM Allows for reaching the setpoint faster – with setpoint change or ramp function – but Setpoint overshooting of up to 5 % is possible.

  • Page 47: Control Parameters- Xp-, Tn-, Tv- Internal

    9.5.4. Control parameters– XP-, TN-, TV- INTERNAL In most cases the control parameters preset in the factory are adequate for achieving an optimum temperature sequence. The control parameters allow adjustment to special control processes.. Proportional range >Xp< The proportional range is the range below the setpoint in which the control circuit reduces the heating capacity from 100% to 0 % Setting range: 0.1 ...

  • Page 48: Menu Serial - Baudrate, Handshake, Parity

    Menu functions 9.6. MENU SERIAL - BAUDRATE, HANDSHAKE, PARITY 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. For remote control refer to page 62 Factory settings: 4800 Baud even...

  • Page 49: Menu Atc - Absolut Temperature Calibration

    9.7. 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 Example: of the temperature sensor (CT) is determined at the respective adjusted 1-point calibration...
  • Page 50 Menu functions Menu level 1 Level 2 Parameter level Press the key if parameter is to be retained. Correction function for parameters or values (prior to OK). • The parameter flashes, switch by pressing On level 2 a (I) is indicated for internal or an (E) for external.

  • Page 51: Atc Sensor - Internal / External

    The value is only indicated • Integer digits flash, set by pressing • Decimal digits flash, set by pressing If only a 2-point calibration is carried out, the following menu items are not indicated anymore The value is only indicated •...

  • Page 52: Calibration Type: 1 -/ 2 -/ 3 Point

    Menu functions 9.7.3. CALIBRATION TYPE: 1 -/ 2 -/ 3 POINT A >1-point<, >2-point< or >3-point< calibration can be carried out. First geometrically define the location for calibration (measuring point CT), then determine the temperature values of the calibration points. The type of calibrations also determines the number of the following pairs of values indicated on the LCD DIALOG-DISPLAY.

  • Page 53: Example: 3-Point Calibration For Internal Control

    9.7.4. 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 circulator to internal control: MENU CONTROL page 44 Menu level 1 The type of control can be set only in the –OFF- mode.
  • Page 54 Menu functions An ATC calibration is to be carried out. Set to >NO< • The parameter flashes, switch by pressing • The parameter flashes, switch by pressing A >3-point< calibration is carried out. The value >TMPVAL< is only indicated In addition the measured value >CALVAL X< is saved during the following step •...

  • Page 55: Menu Limits

    9.8. MENU LIMITS Menu level 1 Level 2 Parameter level Press the key if parameter is to be retained. Correction function for parameters or values (prior to OK). • Integer digits flash, set by pressing • Decimal digits flash, set by pressing •...

  • Page 56: Limits For Internal Control

    Menu functions 9.8.1. Limits for internal control SETPOINT MAX / MIN – Maximum and minimum setpoint Restriction of the adjustable temperature range The limitation of the operating temperature range effects the temperature setting in the menu with the key Only setting of working temperatures which lie within the determined limits is possible Existing settings for SETPNT 1, -2, -3, as well as those for >OVERTMP<...
  • Page 57 BAND HIGH / LOW – Band limitation The band limitation is active during external control. Varied, practice- oriented setting are feasible for heat-up and cool-down phases. Setting range: 0 °C ... 200 °C BAND HIGH and BAND LOW allow for the limitation of the difference between the temperatures in the internal bath and the external system to any maximum value for the heat-up and cool-down phase.

  • Page 58: 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. Error message with ticker: > REFRIGERATOR ALARM-CHECK CONNECTION < 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 59 Error message with ticker: >SENSOR DIFFERENCE ALARM-CHECK VISCOSITY AND PUMP STAGE< Defect of working or excess temperature protector. Working temperature sensor and excess temperature protector report a temperature difference of more than 35 K. Error message with ticker: > INTERNAL HARDWARE ERROR-CALL SERVICE < Other errors Error in A/D converter Error message with ticker:...
  • Page 60 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. If viscosity of the bath fluid is or becomes too high, the motor stops running.

  • Page 61: Electrical Connections

    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.

  • Page 62: Remote Control

    Remote control / Control output connector may be used for control of JULABO refrigerated circulators or as output for alarm messages. Circuit: Operation = relay powered Alarm = relay not powered Pin assignment: Signal +24 V (I max. current 25 mA)

  • Page 63: Communication With A Pc Or A Superordinated Data System

    12.2. Communication with a PC or a superordinated data system If the circulator is put into remote control mode via the configuration level, the VFD COMFORT-DISPLAY will read “R -OFF-” = REMOTE STOP. The circulator is now operated via the computer. In general, the computer (master) sends commands to the circulator (slave).

  • Page 64: 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 > SETPNT 1< out_mode_01 Use working temperature > SETPNT 2< out_mode_01 Use working temperature > SETPNT 3< out_mode_04 Temperature control of internal bath.
  • Page 65 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 66) in_pv_00 none Actual bath temperature. in_pv_01 none Heating power being used (%).

  • Page 66: Status Messages

    Remote control Command Parameter Response of circulator in_mode_01 none Selected setpoint: 0 = SETPNT 1 1 = SETPNT 2 2 = SETPNT 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 67 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 I C-BUS ERROR Internal error when reading or writing the I C bus. -08 INVALID COMMAND Invalid command.

  • Page 68: Julabo Service - Online Remote Diagnosis

    JULABO Service – Online remote diagnosis 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 69: 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.

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