Julabo SC 2500a Operating Manual
Semichill recirculating coolers
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Summary of Contents for Julabo SC 2500a
- Page 1 Operating Manual SemiChill Recirculating Coolers Eco-Series Flow Cond. °C °C SC 2500a SC 2500 air cooled SC 2500w water cooled 1.951.4551-V7 07/17 19514551-V7.doc 18.07.2017 GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
- 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
Recirculating Cooler TABLE OF CONTENTS Operating manual ........................ 5 Intended use ......................... 5 1.1. Description ....................... 5 Operator responsibility – Safety instructions ..............5 2.1. Disposal ........................7 2.2. EC Declaration of Conformity ................... 8 2.3. Warranty conditions ....................9 2.4. - Page 4 12.2. Communication with a PC or a superordinated data system ........42 12.3. List of commands ....................43 12.4. Status messages ....................45 12.5. Error messages .......................45 13. JULABO Service – Online remote diagnosis ..............46 14. Cleaning / repairing the unit ..................47 GlobalTestSupply www.
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Page 5: Operating Manual
Recirculating Cooler Operating manual Intended use JULABO recirculating coolers 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 recirculating coolers are not suitable for direct temperature control of foods, semi-luxury foods and tobacco, or pharmaceutical and medical products. - Page 6 Operator responsibility – Safety instructions Make sure all persons tasked with operating, installing, and maintaining the unit have read and understand the safety information and operating instructions. When using hazardous materials or materials that could become hazardous, the circulator may be operated only by persons who are absolutely familiar with these materials and the circulator.
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Page 7: Disposal
There are thermal dangers: Burn, scald, hot steam, hot parts and surfaces that can be touched. 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. -
Page 8: Ec Declaration Of Conformity
Operator responsibility – Safety instructions 2.2. EC Declaration of Conformity GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com... -
Page 9: Warranty Conditions
The extended warranty will apply from the date of JULABO GmbH’s original invoice. JULABO GmbH reserves the right to decide the validity of any warranty claim. In case of faults arising either due to faulty materials or workmanship, parts will be repaired or replaced free of charge, or a new replacement unit will be supplied. -
Page 10: Technical Specifications
Operator responsibility – Safety instructions 2.4. Technical specifications Eco- Series SC 2500a SC 2500w Working temperature ranges: Standard unit °C +5 ... +35 +5 ... +35 Option Low Temp °C -20 ... +35 -20 ... +35 Option Low /HighTemp I °C... - Page 11 Recirculating Cooler Eco- Series Temperature selection digital via keypad indication on LED-Multi-Display remote control via personal computer indication on monitor Temperature indication °C LED-Multi-Display Resolution °C Electrical connection: Computer interface RS232 Table 1 Pump capacity XX.XX XX.XX Bath fluid: Water, Silicone -oil PUMP PUMP Circulating pump:...
- Page 12 Operator responsibility – Safety instructions Safety installations according to IEC 61010-2-010: Excess temperature protection adjustable from 0 °C ... 320 °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 13 The operator undertakes to have maintenance, repair, service, recovery and recycling work carried out by certified personnel who have been authorized by JULABO. All such work must be documented. The operator must keep records and archive them for at least five years.
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Page 14: Cooling Water Connection
Operator responsibility – Safety instructions 2.5. Cooling water connection Cooling water pressure (IN/OUT) max. 6 bar Pressure difference (IN - OUT) 3.5 to 6 bar Cooling water consumption (IN with 15 °C) 5 l/min Cooling water temperature < 20 °C Notice: Cooling water circuit Risk of oil leaking from the refrigeration system (compressor) of the recirculating... -
Page 15: Operating Instructions
Recirculating Cooler Operating instructions Operating controls and functional elements Front view Rear view RGE NC Y ST E NE °C °C SC 2500 Mains power switch Emergency stop switch Adjustable excess temperature protection according to IEC 61010-2-010 °C Keypad Start / stop key Key for selecting the working temperature - Setpoint 1, 2, 3 Key for selecting the warning and safety values MENU button - for selecting the menu functions... - Page 16 Operating controls and functional elements Edit keys (increase or decrease) Enter key 1) Store value / parameter 2) Next lower menu level Escape key 1. Cancel entries 2. Return to a higher menu level MULTI-DISPLAY (LED) temperature indication, menu indication Control indicator –Heating Control indicator –...
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Page 17: Safety Notes For The User
Recirculating Cooler Discharge nozzle with cap nut, Connection: ½ " male Recommendation: Before filling please install a drain cock at the discharge nozzle. (not included in delivery) Order-No. 8 920 100 Drain cock, stainless steel Only for water cooled models: Cooling water OUTLET and INLET Safety notes for the user 4.1. -
Page 18: Safety Instructions
Safety notes for the user 4.3. Safety instructions 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)! The power supply plug serves as a safe disconnecting device from the line and must always be easily accessible. - Page 19 Recirculating Cooler Caution: The unit may be used, for example, to control the temperature of fluids in a reactor. We do not know what substances are contained in these vessels. Many substances are: inflammable, easily ignited, or explosive hazardous to health environmentally hazardous i.e.: dangerous The user alone is responsible for the handling of these substances!
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Page 20: Preparations
Preparations Preparations 5.1. Installation Place the unit in an upright position. For better stability, apply the holding brakes on the front casters. The place of installation should be large enough and provide sufficient air ventilation to ensure the room does not warm up excessively because of the heat the instrument rejects to the environment. -
Page 21: Connecting The External System
Recirculating Cooler 5.2. Connecting the external system Connect the tubing for cooling the external system to the pump connectors (22, 23) for feed and return on the rear of the recirculating cooler. 3/4" NPT male In case the system to be cooled is located at a higher level than the recirculating cooler, take note of bath liquid flowing back when the unit is switched off. -
Page 22: Tubing
Preparations 5.2.1. Tubing Recommended tubing: Maximum pressure Textile-reinforced tubing > 4.5 bar Warning: Tubing: At high working temperatures, the tubing used for temperature control and for the cooling water supply represents a danger source. A damaged tubing line may allow a large amount of hot bath fluid to be pumped out within a short time. -
Page 23: Filling
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 24: Draining
Preparations 5.4. 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 of the used bath fluid according to the environmental protection laws. -
Page 25: Operating Procedures
Recirculating Cooler Operating procedures 6.1. Power connection Caution: Only connect the unit to a power socket with an earthing contact (PE – protective earth)! The power supply plug serves as a safe disconnecting device from the line and must always be easily accessible. Never operate the unit with a damaged mains power cable. -
Page 26: Autostart On / Off
AUTOSTART on. AUTOSTART off. NOTE: The recirculating cooler 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“... -
Page 27: Setting The Temperatures
Recirculating Cooler Setting the temperatures Press the key to call up the menu for temperature selection. Setting can be carried out in the start/stop condition. Factory settings: 25 °C Example: Actual value Press the key. The setpoint value instead of the actual value is indicated on the display. -
Page 28: Early Warning System, Low Level Protection
Safety installations, warning functions Warning: The excess temperature protection >SafeTemp< should be set at least below the flash point of the bath fluid used. There is a risk of fire in the event of a wrong setting! We disclaim all liability for damage caused by wrong settings! 8.2. -
Page 29: High And Low Temperature Warning Functions
Recirculating Cooler 8.3. High and low temperature warning functions Factory settings: If for a sensitive temperature application task adherence to a working temperature value (setpoint) is to be supervised, then set high and low temperature warning values. In the example below, the >Setpoint< of 85 °C is surrounded by the High temperature limit values >... -
Page 30: Limitation Of The Operating Temperature Range
Safety installations, warning functions 8.4. Limitation of the operating temperature range The limitation of the operating temperature range effects the temperature Factory settings: setting under the menu called up with the key. It is possible to adjust only working temperatures that lie within the limit range set here. Existing settings for Setpoint 1, 2, 3 and also for >... -
Page 31: Change-Over Of The Warning Function To Shutdown Function
Recirculating Cooler 8.5. Change-over of the warning function to shutdown function For the two menu items > t High < and > t Low < choose between a warning message being signalled or a complete shutdown of the main functional elements such as heater and circulating pump being effected. Factory setting: Li 0 (see page 29) Setting >Li / 0<... -
Page 32: Menu Functions
Menu functions Menu functions The term „menu functions“ refers to adjustments such as electronically adjustable pump capacity, Pump ATC - Absolute Temperature Calibration ATC status Type (Art): >1. point<, >2. point < or >3. point < calibration. 2 values per calibration point ttx = Defined temperature value of the calibration point. -
Page 33: Setting The Pump Pressure
Recirculating Cooler 9.1. Setting the pump pressure The pressure of the circulating pump is adjustable in stages. See table 1 page 11. Press the button until the menu item Factory setting: Stage 2 is displayed. Press enter to indicate the parameter. Select the parameter with the keys (1 ... - Page 34 Menu functions The menu ATC - Absolute Temperature Calibration is structured in 2 levels. ATC status Calibration type: 1-, 2-, 3-point calibration 2 values per calibration point ttx = Temperature indication on circulator Indicates the value of the calibration point entered last. Ctx = Calibration temperature x Input of the new value for the calibration curve.
- Page 35 Recirculating Cooler Determine the calibration type: (1-point, 2-point or 3-point calibration.) Press the button until the menu item is displayed Example and press enter to indicate the parameter. Select the parameter with the keys (1, 2, 3). Press enter to store the selected parameter. Depending on which calibration type is selected (1-point, 2-point or 3- point calibration) only the necessary menu items are indicated.
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Page 36: Remote Control: Activate - Deactivate
Menu functions 9.3. Remote control: activate – deactivate The circulator is to be prepared for remote control by a personal computer via the serial interface RS232: Set the menu item >remote< from >no< to >YES<. Factory setting: no Press the button until the menu item is displayed. -
Page 37: Control Parameters - Xp, Tv, Tn
Recirculating Cooler Handshake 0 = Xon/Xoff protocol software handshake 1 = Protocol RTS/CTS hardware handshake Data bits = 7; Stop bits = 1 Press the button until the desired menu item is displayed. Press enter to indicate the parameter. Select the parameter with the keys Press enter to store the selected parameter. - Page 38 Menu functions 1 1 . Press the button until the desired menu item is displayed. Press enter to indicate the parameter. Set value: Use the cursor keys to move left or right on the display until the numeral you wish to change blinks. Use the increase/decrease arrows to change the selected numeral (-, 0, 1, 2, 3, ...
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Page 39: Reset
Replace the tubing and replenish the bath tank with the bath fluid. The float is defect (e. g., because damaged in transit). Repair by authorized JULABO service personnel. Excess temperature sensors defect. The excess temperature value lies below the working temperature setpoint. - Page 40 Replenish the bath tank with the bath fluid. 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. Mains fuses The mains fuses on the rear of the unit are safety cutouts –...
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Page 41: Electrical Connections
Recirculating Cooler 11. 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. -
Page 42: 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 - see page 36). RS232C Set the menu item >Remote< from >no< to >YES< (see page 36). -
Page 43: List Of Commands
Recirculating Cooler Important times for a command transmission: To ensure a safe data transfer, the time gap between two commands should be at least 250 ms. The circulator automatically responds to an in command with a data string followed by a LF (Line Feed). The next command should only be sent after 10 ms. - Page 44 Remote control 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 45 ). in_pv_00 none Actual bath temperature. in_pv_01 none Heating power being used (%).
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Page 45: Status Messages
Recirculating Cooler 12.4. Status messages Status messages Description 00 MANUAL STOP Recirculating cooler in „OFF“ state. 01 MANUAL START Recirculating cooler in keypad control mode. 02 REMOTE STOP Recirculating cooler in „r OFF“ state. 03 REMOTE START Recirculating cooler in remote control mode. 12.5. -
Page 46: 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 47: Cleaning / Repairing The Unit
The recirculating cooler is designed for continuous operation under normal conditions. Periodic maintenance is not required. The tank should be filled only with a bath fluid recommended by JULABO. To avoid contamination, it is essential to change the bath fluid from time to time. Repairs... - Page 48 Cleaning / repairing the unit GlobalTestSupply www. .com Find Quality Products Online at: sales@GlobalTestSupply.com...
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