Highly dynamic temperature control systems (76 pages)
Summary of Contents for Julabo Presto LH 45
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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 19532757_a.doc Print date: 19.01.09...
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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.
European guidelines. 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.
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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 Safety instructions for the operator: Avoid strikes to the housing, vibrations, damage to the operating-element panel (keypad, display), and contamination.
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 and technical specifications of the products.
Operator responsibility – Safety instructions 2.2. Technical specifications LH45 LH46 Working temperature range °C -40 ... 250 -45 ... 250 Temperature stability °C ±0.01 ... ±0.05 ±0.01 ... ±0.05 Cooling capacity °C 200 / 20 -20 -40 200 / 20 -20 -40 (bath liquid: Thermal / Ethanol) 1.5 / 1.2 0.5 0.1 2.5 / 2.1 0.9 0.1...
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® Presto ® Temperature System LH45, LH46, LH85 Presto Temperature selection digital via Removable control module RD indication on DIALOG-Display (LCD) remote control via personal computer indication on monitor Temperature indication VFD-Info-Display DIALOG-DISPLAY (LCD) Resolution °C 0.01 from -9.99 °C to +249.99 °C Pump pressure display on VFD-Info-Display in five grades Liquid level display...
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Operator responsibility – Safety instructions Environmental conditions according to IEC 61 010-1: • Use only indoor. • Altitude up to 2000 m - normal zero. • Ambient temperature: see Technical specifications • Air humidity: Max. rel. humidity 80 % for temperatures up to +31 °C, linear decrease down to 50 % relative humidity at a temperature of +40 °C •...
® Presto 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.
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...
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® Presto 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.
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Operating controls and functional elements Control module RD DIALOG-DISPLAY (LCD) Standard indication Line 1: Setpoint in °C Setp: 120.00°C Line 2: Internal actual value in °C IntAct 21.00°C Line 3: External actual value in °C ExtAct: 20.00°C Line 4: Control type: internal / external control Control: Intern Indicating messages (e.
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® Presto Rear Control connector 230 V / max. 0.1 A 11 Mains circuit breakers (resettable) 16 A F1 and F3 Compressor F2 and F4 Heater, Pump 12 Mains power cable with plug 13 + 14 Pump connectors Return Feed M16x1 Overflow connector M16x1 Connector for expansion vessel...
Operating controls and functional elements ® 3.1. The Presto principle with closed external system (e.g. double-sided glass Soll 1: xxx.xx°C EXT. Pt100 IntIst: xxx.xx°C Leistung: Regelung: Intern 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).
® Presto ® 3.2. The Presto principle with open external system Operating Soll 1: xxx.xx°C EXT. Pt100 IntIst: xxx.xx°C Leistung: The operation of the temperature Regelung: Intern system and the indication of the values is effected via the local control panel (2) and the removable operating device RD (4).
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.
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® Presto overflowing of the fluid. • 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).
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Safety notes for the user 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. Simultaneously set the working temperature to +20 °C to allow the temperature in the system to decrease slowly.
® Presto Preparations 5.1. Installation The Presto ® 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. Lift the handle (6) and using the castor (19) move the unit to the intended location.
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., •...
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® Presto 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...
(loop circuits). The temperature application of external, open systems is also possible. However, this requires a series of special measures which Julabo cannot influence like e.g. the protection of the bath liquid from environmental influences such as oxygen and air humidity.
® Presto Important: Leakage on shaft sealing The shaft sealings of the pump are never absolutely tight. But this does not have an impact on the proper functioning of the instrument. The slight leakage that appears ensures good sliding properties of the sealing. Any excess fluid is drained via the overflow connector (15).
Preparations 5.3.2. 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 ...
® Presto 5.4. 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 freely accessible. •...
Preparations 5.5.1. 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.
® Presto 5.5.2. Filling of external, open 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.
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Preparations Adjusting Mode: Notice concerning the filling The temperature system was emptied last, therefore the menu option >Mode< now still stands on >drain<. In the configuration of this unit the >Mode< >fill< means the same as >drain< and therefore does not have to be adjusted. Explanation of terms: ®...
® Presto 5.6. Degasifying If the temperature system is operated in a closed, external consumer, >Mode: sys close<, 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.
Preparations 5.7. 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.
The unit is operated by pressing the mains power switch (1). The integrated pilot lamp illuminates. During the self-test all segments of the VFD-Info-Display, all JULABO control indicators and the DIALOG-DISPLAY light up. P R E S T O Then the software version number (example: V1.45-1) appears V1.45-1...
® Presto 7.2. Direct setting of the working temperature This setting may be carried out with the temperature system being Setp.: 20.00°C 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).
Manual operation 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).
® Presto 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 Setting in line 4. Setp.: 120.00°C Overt.:130.00°C The value previously set appears on the DIALOG-DISPLAY Subtmp:110.00°C (LCD).
Manual operation 7.4. Setting the safety temperature (with shutdown function) Check the safety installations at least twice a year! See page 20 . This safety feature functions independent of the regulator circuit. TANK 150 When the temperature of the bath liquid has reached the safety temperature, a complete shutdown of the heater and pump is effected.
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® Presto • Press enter to quit the audible signal. • After eliminating the malfunction, press the mains power switch off and on again to cancel the alarm state. Warning: Recommendation for external, closed systems: (see page 16) • Set the safety temperature >TANK< 15 °C above the working temperature setpoint.
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.
Menu functions 8.1. Configuration By means of the configuration functions, operation of the instrument can be optimized for the current application. >Configuration Controlparam. Profile Start Configuration Int.Programmer Identif. xxxxx • Press enter to select the configuration submenu. Inputs/Outputs Setpoint xxxxx Limits Autostart Interface...
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>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.
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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 any...
® Presto 8.2. Control parameters When performing an identification for the controlled system (temperature applications system) (see page 42), 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.
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Menu functions >DynInt< - Dynamics standard °C This parameter affects the march of temperature only in case temp. stability of internal control (see page 40) aperiod. setpoint Adjustable parameter: The temperature rises quicker, however can standard overshoot up to 5 %. If a ramp is defined, the standard march of temperature often follows this ramp.
® Presto 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.
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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 Start time hour.min day and month Day.Mon year...
® Presto 8.3.1. Interrupting a profile Interrupting a profile: • Press the start/stop key to interrupt or continue a profile. The setpoint and time period set for the corresponding section are thus stopped at the values presently achieved. The instrument is put on hold and the message "pause" flashes on the DIALOG DISPLAY (LCD).
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.
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® Presto Edit Int.Programmer >Edit Compile profiles: Delete Set Clock >Edit Profile: 1 • A flashing segment indicates that a number needs to be Step: entered. Setp: 100.00°C Time[h.m] 01:05 Under submenu "Edit Profile" enter a profile number. Six profiles may be stored (nos. 0 to 5). Examples: •...
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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.
® Presto 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.
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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:...
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® Presto 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).
Menu functions 8.6. Limits The limits IntMax and IntMin are only valid under external control Int.Programmer (see 7.5. Internal / external control). They restrict the Inputs/Outputs temperature of the internal bath to the desired maximum/minimum, Limits Interface also if the controller would require a higher/lower temperature for Temp.Sensor Limits the external system.
® Presto 8.8. Sensors ATC - Absolute Temperature Calibration • Select the submenu "Temp.Sensor" with enter Inputs/Outputs Limits Interface • Select the desired option with the up/down cursor keys >Temp.Sensor A flashing digit indicates that a value needs to be entered i.e. Sensors set.
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 Limits open / sys close) the valves are switched off automatically.
The float is defect (e. g., because damaged in transit). Repair by authorized JULABO service personnel. 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.
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Replace the tubing and replenish the bath tank with the bath liquid. • The float is defect (e. g., because damaged in transit). Repair by authorized JULABO service personnel. External control selected, but external Pt100 sensor not connected. CODE 15 Heating circuit interrupted.
® Presto 9.1. Additional warnings and alarm messages LH85 In order to guard against a destruction of particular components of the refrigerant cycles, different control sensors were installed. The following messages explain the particular incidences and give indication for further action.
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Press enter to quit the audible signal. ⇒ • 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.
® Presto Disturbances that are not indicated. Pump motor overload protection • The pump motor is protected against overloading. After a short cooling interval, the motor will automatically start running. Fuses: • Mains circuit breakers (resettable) 10. Electrical connections Important: Use shielded cables only.
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® Presto 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 44). • Connect an external contact 'AK' (e.g.
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∼...
® Presto 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-"...
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. Parameter Response of instrument Command none Number of software version (V X.xx) version none Status message, error message (see page 71)
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® Presto Parameter Response of instrument Command none Temperature system in Stop/Start condition: in_mode_05 0 = Stop 1 = Start none Adjusted control dynamics in_mode_08 0 = aperiodic 1 = standard none Time constant of the external bath. in_par_01 none Internal slope.
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Remote control Parameter Response of instrument Command Continual identification of controlled system whenever a new out_mode_02 setpoint is to be reached. Temperature control of internal bath. out_mode_04 External control with Pt100 sensor. out_mode_04 Stop the unit = R –OFF-. out_mode_05 Start the unit.
® Presto 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 ®...
Remote control Value lies outside the adjusted range for the high and low -13 WARNING : VALUE EXCEEDS temperature warning limits. But value is stored. TEMPERATURE LIMITS -14 TEMPERATURE/LEVEL ALARM Safety temperature alarm External control selected, but external Pt100 sensor not -15 EXTERNAL SENSOR ALARM connected.
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® Presto The exit temperature of stage 1 is too high. For this reason -29 COMPRESSOR STAGE 1 FIVE the compressors of both stages have already been switched TIMES PER DAY IN OVERTEMP off 4 times. (see warning CODE 28). After a cool-down phase the alarm status can be cancelled by switching off and on again at the mains switch, and the unit is ready to operate again.
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Remote control The cooling system is surcharged, and the compressor of -47 COMPRESSOR STAGE 2 TO stage 2 was switched off. LONG ABOVE HIGH Before the WARNING CODE 42 is shown for more than two PRESSURE hours. In order to avoid the destruction of the compressor, the refrigerant cycle of stage 2 should be checked by a specialist.
Clean the outside of the unit using a wet cloth and low surface tension water (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.
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Cleaning the unit Cleaning is performed in three steps. First rinse the internal reservoir, then the remaining parts of the instrument. As third step, carefully remove the cleaning liquid. 1. Cleaning the internal reservoir: • Switch off the unit with the mains switch! Thus both valves "Fill"...
® Presto 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.
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• 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.
Presto 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...
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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;...
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