Julabo PRESTOPLUS LH41 Operating Manual
  1. Manuals
  2. Brands
  3. Julabo Manuals
  4. Temperature Controller
  5. PRESTOPLUS LH41
  6. Operating manual
Julabo PRESTOPLUS LH41 Operating Manual

Julabo PRESTOPLUS LH41 Operating Manual

Highly dynamic temperature control system
Hide thumbs
Table of Contents

Advertisement

Quick Links

Highly Dynamic Temperature Control System
• with integrated programmer
LH 40
air-cooled
LH41
water-cooled
Version: V45D-01
JULABO WEST
2575 Pioneer Avenue, Suite 102
Vista, CA 92081
(760) 842-8010
(760) 842-8015
info @ julabo.com
www.julabo.com
19532780.doc
Operating Manual
JULABO EAST
754 Roble Road, Suite 180
Allentown, PA 18109
(610) 231-0250
(610) 231-0260
info @ julabo.com
www.julabo.com
Print date: 10.06.09

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the PRESTOPLUS LH41 and is the answer not in the manual?

Questions and answers

Related Manuals for Julabo PRESTOPLUS LH41

Summary of Contents for Julabo PRESTOPLUS LH41

  • Page 1 JULABO WEST JULABO EAST 2575 Pioneer Avenue, Suite 102 754 Roble Road, Suite 180 Vista, CA 92081 Allentown, PA 18109 (760) 842-8010 (610) 231-0250 (760) 842-8015 (610) 231-0260 info @ julabo.com info @ julabo.com www.julabo.com www.julabo.com 19532780.doc Print date: 10.06.09...
  • 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.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS OPERATING MANUAL ....................... 5 INTENDED USE ....................5 1.1. Description......................5 OPERATOR RESPONSIBILITY –SAFETY INSTRUCTIONS ....... 6 2.1. Disposal......................... 8 2.2. Technical specifications..................9 2.3. Cooling water connection ..................12 OPERATING INSTRUCTIONS ..................13 OPERATING CONTROLS AND FUNCTIONAL ELEMENTS......13 3.1.
  • Page 4 8.1. Configuration ....................... 40 8.2. Control parameters....................43 8.3. Start of a profile ....................45 8.3.1. Interrupting a profile..................47 8.4. Integrated programmer..................48 8.5. Analog inputs/outputs ..................51 8.6. Limits ........................54 8.7. Interface....................... 54 8.8. Sensors ....................... 55 8.9.

  • Page 5: Operating Manual

    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).

  • Page 6: Operator Responsibility -Safety Instructions

    Operator responsibility –Safety instructions Operator responsibility –Safety instructions 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 corresponding safety instructions. Also observe the pin assignment of plugs...

  • Page 8: Disposal

    Operator responsibility –Safety instructions 2.1. Disposal The product may be used with oil as bath fluid. These oils fully or partially consist of mineral oil or synthetic oil. For disposal, follow the instructions in the material safety data sheets. This unit contains the refrigerant R404A, which at this time is not considered harmful to the ozone layer.

  • Page 9: Technical Specifications

    2.2. Technical specifications LH 40 LH 41 Mains power connection V / Hz 207-253/50 207-253/50 230V/50Hz Current draw (at 230 V) Mains power connection (GB) V / Hz 207-253/50 207-253/50 230V/50Hz Current draw (at 230 V) Working temperature range °C -40 ...
  • Page 10 Operator responsibility –Safety instructions LH 40 LH 41 Mains power connection V / Hz 207-253/60 207-253/60 230V/60Hz Current draw (at 230 V) Working temperature range °C -40 ... 250 -40 ... 250 Temperature stability °C ±0.01 ... ±0.05 ±0.01 ... ±0.05 Cooling capacity °C 200 100 // 20...
  • Page 11 0 to 20 mA (0 mA = -100 °C, 20 mA = 400 °C) 4 to 20 mA (4 mA = -100 °C, 20 mA = 400 °C) Stand-by input External alarm device 24-0 V DC / max. 25 mA External measurement and control sensor Pt100, 4-lead technique Control connector (10) Output voltage:...

  • Page 12: Cooling Water Connection

    Operator responsibility –Safety instructions 2.3. Cooling water connection Cooling water pressure (IN / OUT ) max. 6 bar Difference pressure (IN - OUT ) 3.5 to 6 bar Cooling water temperature <20 °C Notice: Cooling water circuit Risk of oil leaking from the refrigeration system (compressor) of the recirculating cooler into the cooling water in case of a fault in the cooling water circuit! Observe the laws and regulations of the water distribution company valid in the location where the unit is operated.

  • Page 13: Operating Instructions

    Operating instructions Operating controls and functional elements Front view Mains power switch, illuminated Local operating board Socket board Removable control module Filling funnel (hinged) Handle (foldaway) Venting grid, removable Drain with drain port Local operating board VFD-Info-Display Header: Control indicators see section 2.2 Line 1: Actual value Int or Ext...
  • Page 14 Operating controls and functional elements Control indicators in the header: Heating / Cooling / Alarm / Remote control Temperature indication Internal or External actual value Temperature indication in °C or °F Display for the adjusted pump pressure stage (five grades), adjustable via the key Liquid level display (five grades) for the reservoir.
  • Page 15 Control module RD DIALOG-DISPLAY (LCD) Standard indication Line 1: Setpoint in °C Setp: 120.00°C IntAct 21.00°C Line 2: Internal actual value in °C ExtAct: 20.00°C Line 3: External actual value in °C Control: Intern Line 4: Control type: internal / external control Indicating messages (e.
  • Page 16 Operating controls and functional elements Rear Control connector 230 V / max. 0.1 A 4 Mains circuit breakers (resettable) 16 A F1 and F3 Compressor F2 and F4 Heater, Pump Mains power cable with plug 13 + 14 Pump connectors Return Feed M16x1...

  • Page 17: The Presto Plus Principle With Closed External System

    3.1. The Presto Plus principle with closed external system e.g. LH40 and double-sided glass vessel Operating: The operation of the temperature system and the indication is effected via the local control panel (2) and the removable operating device RD(4). Filling : First connect the external consumer.

  • Page 18: 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 above, warnings are posted throughout the manual. These warnings are designated by an exclamation mark inside an equilateral triangle.
  • Page 19 • Prevent water from penetrating into the hot bath oil. • 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 Safety notes for the user Caution: Escape of vapors / gas The necessity of degassing requires that a closed system is not entirely sealed. Especially at increased working temperatures vapor / gas may escape. Ensure sufficient ventilation at the place of installation! Notice: When you have finished the application, it is recommended to keep on circulating the liquid in the bath or the external system for some time.

  • Page 21: Preparations

    Fire or other dangers when using bath fluids that are not recommended: Please contact JULABO before using other than recommended bath liquids. JULABO assumes no liability for damage caused by the selection of an unsuitable bath fluid. Unsuitable bath fluids are fluids which, e.g., •...
  • Page 22 Preparations Diagram 1: JULABO Thermal oils Change in volume in dependence on the temperature of bath liquid. Examples: Rough estimate for LH45 (2,6 liters) with an external closed system (2,4 liters). Example A: Filling quantity at ambient temperature 5 liters Intended working temperature range -40 °C bis +250 °C...

  • Page 23: Tubing

    5.2. Tubing Recommended tubing: Metal tubing, triple insulated, M16x1, Temperature range -100 °C ... +350 °C Order No. Length 8 930 209 0.5 m 8 930 210 1.0 m 8 930 211 1.5 m 8 930 214 3.0 m Metal tubing, insulated, M16x1, Temperature range -50 °C ... +200 °C Order No.

  • Page 24: Installation

    Preparations 5.3. Installation Caution: The unit is not suitable for use in explosive atmosphere The Presto Plus temperature systems may be placed on or underneath a lab bench. • Place the unit on an even surface on a base made of nonflammable material.
  • Page 25 Caution: Securely attach all tubing to prevent slipping. Connecting the external system: Temperature application to external, closed systems. • Remove the cap nuts from the pump connectors (13, 14) and using tubing connect the external system (M16x1 / wrench 19 mm). To prevent the formation of bubbles in the loop circuit, the pressure line (13) is to be connected to the lower nozzle of the external system.

  • Page 26: Cooling Water Connection Lh41

    Preparations Warning: An external expansion vessel is heated up by the wam outgoing air, especially in small rooms or if there is not enough distance between the wall and the unit. In this case only bath liquids with a fire point of ≥100 °C are allowed to be used. Notice: If an expansion vessel is not used, make sure the connector (16) is closed with a cap nut.

  • Page 27: Power Connection

    5.5. Power connection Caution: • Only connect the unit to a power socket with earthing contact (PE – protective earth)! • The power supply plug serves as a safe disconnecting device from the line and must be always easily accessible. •...

  • Page 28: Filling Of External, Closed Systems

    Preparations 5.6.1. Filling of external, closed systems Section 1 • Connect the unit to a mains power socket (see page 27) and ALARM turn on the unit with the mains power switch (1). CODE 14 During the self-test all segments of the VFD-Info-Display, all control indicators and the DIALOG-DISPLAY light up.
  • Page 29 Notice: In the >Mode< > fill < or. >drain<>SELECT SYSTEM< is shown when starting. The message >SELECT SYSTEM<is a demand to make an adjustment in the menu >Pump<. The insertion is effected cyclicly until the adjustment has been made. Adjusting Mode: Notice concerning the filling The temperature system was emptied last, therefore the menu option >Mode<...

  • Page 30: Degasifying

    Preparations 5.7. Degasifying If the temperature system is operated an automatic degasifying is carried out after the start. During the degasifying unwelcome components of the bath liquid are are drawn off . Examples: Air bubbles which were enclosed in the bath liquid during the filling for the unit.

  • Page 31: Draining

    5.8. Draining Notice: • Do not drain the bath fluid while it is hot or cold ! Check the temperature of the bath fluid prior to draining (by switching the unit on for a short moment, for example). • Store and dispose the used bath fluid according to the laws for environmental protection.

  • Page 32: Operating Procedures

    Switching on: • The unit is operated by pressing the mains power switch (1). The integrated pilot lamp illuminates. JULABO During the self-test all segments of the VFD-Info-Display, all P R E S T O control indicators and the DIALOG-DISPLAY light up.

  • Page 33: Manual Operation

    Manual operation 7.1. Start - Stop Start: Setp.: 20.00°C IntAct 21.00°C • Press the start/stop key ExtAct: --.--°C Control: Intern The actual bath temperature is displayed. For approx. 3 seconds the VFD-Info-Display shows the adjusted >Mode< . 20.00 → CLOSED SYSTEM Adjustment >...

  • Page 34: Direct Setting Of The Working Temperature

    Manual operation 7.2. Direct setting of the working temperature This setting may be carried out with the temperature system Setp.: 20.00°C being in operating state Start or Stop! IntAct 21.00°C ExtAct: --.--°C • The value previously set appears on the DIALOG-DISPLAY Control: Intern (LCD) (example: 20.00 °C).

  • Page 35: Warning Functions

    7.3.2. Warning functions The high and low temperature warning functions accompany the )) )) )) working temperature value. An audible signal sounds in intervals when the actual temperature exceeds one of the set limits (patented). The corresponding message appears in line 4 on the DIALOG- DISPLAY (LCD).

  • Page 36: Setting The Pump Pressure Stage

    Manual operation 7.3.3. Setting the pump pressure stage The pressure of the circulation pump is adjustable in five grades. After setting, the VFD-Info-Display indicates the corresponding value. >St.Pump: Setting the pump pressure stage Setp.: 120.00°C Setting in line 4. Overt.:130.00°C The value previously set appears on the DIALOG-DISPLAY Subtmp:110.00°C (LCD).
  • Page 37 Safety temperature in the internal reservoir >RES< This supplementary safety installation supervises and controls the temperature of the bath liquid in the internal reservoir. • Press the key to indicate the safety temperature value in line 3 >RES< on the VFD-Info-Display and using a screwdriver simultaneously turn the setting screw to the desired value (example: 100 °C).

  • Page 38: Internal / External Control

    Menu functions 7.5. Internal / external control The temperature system offers the possibility of internal temperature control in the internal bath or external control directly in an external system. Setup for external control: ® Connect a Pt100 sensor to the socket "EXT" of the Presto temperature system, if necessary perform a calibration using the ext.

  • Page 40: Configuration

    Menu functions 8.1. Configuration By means of the configuration functions, operation of the instrument can be optimized for the current application. • Press enter to select the configuration submenu. • Use the up/down cursor keys to select the desired option. A flashing line indicates that a value needs to be entered.
  • Page 41 >Autostart Note: The temperature system 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. on the VFD-Info-Display.
  • Page 42 Menu functions Should such a safety standard not be required, the AUTOSTART function (automatic start mode) may be activated, thus allowing the start of the instrument directly by pressing the mains power switch or using a timer. Possible parameters: on - AUTOSTART on off - AUTOSTART off Warning For supervised or unsupervised operation with the AUTOSTART function, avoid...

  • Page 43: Control Parameters

    8.2. Control parameters When performing an identification for the controlled system (temperature applications system) (see page 40), the control parameters Xp, Tn, Tv and Xpu will be automatically determined and stored. Each parameter may be manually set via the keypad if necessary, to allow optimum control performance.
  • Page 44 Menu functions >DynInt< - Dynamics standard °C This parameter affects the march of temperature only in temp. stability case of internal control (see page 38) aperiod. setpoint Adjustable parameter: standard The temperature rises quicker, however standard can overshoot up to 5 %. If a ramp is °C defined, the march of temperature often temp.

  • Page 45: Start Of A Profile

    8.3. Start of a profile The start menu of the integrated programmer allows calling up and defined starting of one of six previously stored temperature profiles. The profiles are started manually or via the integrated timer. There are two possibilities for manually starting a program: 1.
  • Page 46 Menu functions • When selecting the parameter time, a new menu level is called up for entry of the start time. A flashing segment indicates that a start time needs to be entered. Example: hour.min 6:00 h hour.min Start time Day.Mon day and month Year...

  • Page 47: Interrupting A Profile

    8.3.1. Interrupting a profile Interrupting a profile: Setp. : xx.xx°C IntAct: xx.xx°C • Press the start/stop key to interrupt or continue a profile. Prof. : x Stp: x Remain: xx:xx:xx *** pause *** The setpoint and time period set for the corresponding section are thus stopped at the values presently achieved.

  • Page 48: Integrated Programmer

    Menu functions 8.4. Integrated programmer 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.
  • Page 49 Edit Compile profiles: • A flashing segment indicates that a number needs to be entered. Under submenu "Edit Profile" enter a profile number. Six profiles may be stored (nos. 0 to 5). Examples: • Then programme the desired values for each section. Profile No 1: Use the keypad to set section number, target temperature and time period.
  • Page 50 Menu functions Delete • A flashing segment indicates that the respective profile number needs to be entered in which one or more consecutive sections are to be deleted. • In lines 2 and 3 of the DIALOG DISPLAY (LCD) enter the numbers of the sections to be deleted.

  • Page 51: Analog Inputs/Outputs

    8.5. Analog inputs/outputs This submenu enables setting of the input and output values for the programmer input and the temperature recorder outputs of socket REG+E-PROG (21). • Press enter to select the inputs/outputs submenu. • Use the up/down cursor keys to select the desired option and press enter to open.
  • Page 52 Menu functions Examples: lowest temperature value: 10 °C highest temperature value 210 °C 10 °C 210 °C Fig. shows 200 °C scaled to paper width Δ Τ = 200 K rise: 50 mV/°C 197 °C 202 °C Δ Τ = 5 K lowest temperature value: 197 °C highest temperature value:...
  • Page 53 Example: • Set the external voltage or current source output for the equivalent of 50 °C temperature setpoint. The value adjusted and set on the external programmer is displayed in line 4 of the DIALOG-DISPLAY (LCD) for control purposes (Example: ExtSet: 50.0 °C). After returning the LCD display to standard display by pressing the temperature value adjusted and set on the external voltage or current source is displayed in line 1...

  • Page 54: Limits

    Menu functions 8.6. Limits The limits IntMax and IntMin are only valid under external control (see 7.5. Internal / external control). They restrict the temperature of the internal bath to the desired maximum/minimum, also if the controller would require a higher/lower temperature for the external system.

  • Page 55: Sensors

    8.8. Sensors ATC - Absolute Temperature Calibration • Select the submenu "Temp.Sensor" with enter • Select the desired option with the up/down cursor keys A flashing digit indicates that a value needs to be entered i.e. set. ATC Int: internal sensor ATC Ext: external sensor •...

  • Page 56: Pump

    Menu functions 8.9. Pump In this submenu the circulation pump can be turned on separately, without heating element or cooling unit. The menu option „Modus“ refers to the filling valve and the ventilation valve. Depending on the operating status (drain / fill / sys close) the valves are switched off automatically.

  • Page 57: Troubleshooting Guide / Error Messages

    " illuminates and a continuous signal tone sounds. CODE 14 Defect temperature sensor in refrigeration circuit. CODE 02 Repair by authorized JULABO service personnel. Cable of the working temperature sensor interrupted or short-circuited. CODE 05 Defect of the working or safety temperature sensor.
  • Page 58 • 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. Disturbances that are not indicated.

  • Page 59: Electrical Connections

    10. Electrical connections Important: Use shielded cables only. The shield of the connecting cable is electrically connected to the plug housing. RS232/RS485 serial interface (3.5) This port can be used to connect a computer with an RS232 or RS485 cable for remote control of the temperature system. SERIAL Pin assignments: RS232 Pin 2...
  • Page 60 Electrical connections Programmer input / temperature recorder output (3.1) Analog inputs / outputs see page 51 Signal 1 Voltage output Channel 1 0 ... 10 V 2 Voltage output Channel 2 0 ... 10 V 3 GND for outputs REG+E-PROG 4 Programmer input EPROG 0 to 10 V / 0 to 20 mA...
  • Page 61 Stand-by input (3.2) (for external emergency switch-off) Pin assignment: Signal not connected 5 V / DC Use shielded cables only. Activate the stand-by input: • Under menu item Stand-by, set the parameter to "yes" (see page 42). • Connect an external contact 'AK' (e.g. for emergency switch-off) or STAND-BY an alarm contact of the superordinated system.

  • Page 62: Remote Control

    Remote control Connector for removable control module RD (3.6) Extension cable for operating device RD: Order No. 8 980 126 2 m long Order No. 8 980 127 5 m long Control connector (10) Output voltage is applied when the unit runs, for example after pressing the start/stop key Output voltage: 230 V∼...

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

    11.2. 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 temperature system is put into remote control mode via the configuration level, the display will read "R -OFF-"...

  • Page 64: List Of Commands

    Remote control 11.3. List of commands When the RS485 interface is used, the instrument address stands in front of each command (Axxx_). in commands: Asking for parameters or temperature values to be displayed. Command Parameter Response of instrument version none Number of software version (V X.xx) status none...
  • Page 65 Command Parameter Response of instrument in_mode_05 none Temperature system in Stop/Start condition: 0 = Stop 1 = Start in_mode_08 none Adjusted control dynamics 0 = aperiodic 1 = standard in_par_01 none Time constant of the external bath. in_par_02 none Internal slope. in_par_03 none Time constant of the internal bath.
  • Page 66 Remote control Command Parameter Response of instrument out_mode_04 Temperature control of internal bath. out_mode_04 External control with Pt100 sensor. out_mode_05 Stop the unit = R –OFF-. out_mode_05 Start the unit. out_mode_08 Set the control dynamics - aperiodic out_mode_08 Set the control dynamics - standard out_sp_00 xxx.x Set working temperature.

  • Page 67: Status Messages / Error Messages

    11.4. Status messages / error messages The instrument sends data (including error messages) only when the computer sends a query. Status messages Description 00 MANUAL STOP Presto in "OFF" state. 01 MANUAL START Presto in keypad control mode 01 MANUAL START,DEGASING Presto in keypad control mode and degasifying active 02 REMOTE STOP...
  • Page 68 Remote control -13 WARNING : VALUE EXCEEDS Value lies outside the adjusted range for the high TEMPERATURE LIMITS and low temperature warning limits. But value is stored. -14 TEMPERATURE/LEVEL ALARM Safety temperature alarm Low liquid level alarm -15 EXTERNAL SENSOR ALARM External control selected, but external Pt100 sensor not connected.

  • Page 69: Cleaning The Unit

    (e.g., soap suds). Before applying a cleaning or decontamination method different from the one recommended by JULABO, the user has to make sure with the manufacturer, that the planned method does not damage the unit. Cleaning the inside: If you change the bath liquid or want to use a different one, carefully clean the parts in contact with the bath liquid.
  • Page 70 Cleaning the unit Cleaning is performed in two steps. First rinse the internal reservoir, the tubing lines and the heat exchanger. As second step, carefully remove the cleaning liquid. 1. Cleaning internal reservoir, tubing lines and heat exchanger: • Fill the temperature system with cleaning liquid. See chapter 5.6.

  • Page 71: Maintaining / Repairing The Unit

    13. Maintaining / 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.
  • Page 72 The unit is designed for continuous operation under normal conditions. Periodic maintenance is not required. Repairs Before asking for a service technician or returning a JULABO instrument for repair, please contact an authorized JULABO service station. When returning the unit: •...

  • Page 73: Warranty Provisions

    14. 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 74 WARRANTY PROVISIONS MANUFACTURING COSTS, LOST PROFITS, GOODWILL, OR ANY OTHER SPECIAL, INDIRECT, PUNITIVE, 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;...

This manual is also suitable for:

Prestoplus lh 40

Table of Contents