Operating manual Recirculating Coolers RS232 ALARM FL300 FL300 FL601 English 19514818-V2.doc 08.10.
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 principles of operating and possibilities of our circulators. For optimum utilization of all functions, we recommend that you thoroughly study this manual prior to beginning operation.
EC Conformity The products described in the operating instructions conform to the requirements of the following European guidelines: Directive of the European Parliament and of the Council on the approximation of the laws of the Member States relating to machinery. Low voltage regulations with respect to legal harmonization of the member countries concerning electric devices for use within certain voltage limits.
TABLE OF CONTENTS 1. Intended use ................................................................................................................... 6 1.1. Description ........................................................................................................... 6 2. Operator responsibility – Safety instructions ................................................................... 6 2.1. Disposal.....................................................................................................
8. Safety installations ......................................................................................................... 33 8.1. Excess temperature protection............................................................................ 33 8.2. Low level protection ............................................................................................ 33 9. Troubleshooting guide / Error messages ....................................................................... 34 10.
1. Intended use JULABO recirculating coolers have been designed for temperature application to specific fluids. The pump connections can be used for cooling applications in an external circuit at a constant temperature. JULABO water baths are not suitable for direct temperature control of foods, semiluxury foods and tobacco, or pharmaceutical and medical products. Direct temperature control means unprotected contact of the object with the bath medium (bath fluid). 1.1.
The operator is responsible for the qualification of the personnel operating the units. The personnel operating the units should be regularly instructed about the dangers involved with their job activities as well as measures to avert these dangers. Make sure all persons tasked with operating, installing, and maintaining the unit have read and understand the safety information and operating instructions.
radiation may influence other units with components susceptible to magnetic fields (e.g. a monitor). We recommend to keep a minimum distance of 1 m. Permissible ambient temperature: max. 40 °C, min. 5 °C. Permissible relative air humidity: 50 % (40 °C). Do not store in an aggressive atmosphere. Protect from contaminations. Do not expose to sunlight. Appropriate Operation Only qualified personnel is authorized to perform configuration, installation, maintenance and repairs of the water bath.
When using hazardous materials or materials that could become hazardous, the operator must affix the enclosed safety labels (1 + 2) to the front of the unit so they are highly visible: 1 Warning label W00: Colors: yellow, black Danger area. Attention! Observe instructions. (operating manual, safety data sheet) 2 Mandatory label M018: Colors: blue, white Carefully read the user information prior to beginning operation.
2.1. Disposal This unit contains the refrigerants R134a or R404A, which at this time are not considered harmful to the ozone layer. However, over the long operating period of the unit, disposal rules may change. Therefore, only qualified personnel should handle the disposal. Valid in EU countries See the current official journal of the European Union – WEEE directive. Directive of the European Parliament and of the Council on waste electrical and electronic equipment (WEEE).
3. Technical specifications Recirculating Cooler Working temperature range Temperature stability Temperature selection: via key pad remote control via personal computer Temperature indication: Resolution Temperature control Temperature sensor Excess temperature protection FL300 °C °C -20 ... +40 ±0.5 digital indication on LED-DISPLAY indication on monitor Low liquid level protection LED-DISPLAY 0.
Recirculating Cooler FL300 bar Filling level indicator Filling volume from ... to Dimensions (WxLxH) Weight Ambient temperature range Return flow temperature IP class according to IEC 60 529 Liters cm kg °C °C Cooling compressor Refrigerant sight glass 3 ... 4.5 25x50x60 39 5 ... 40 80 max. IP 21 1- stage / air cooled R134a Cooling capacity (at A, B, C) Medium: Mixture water-glycol °C kW +20 0.
Recirculating Cooler FL300 Cooling capacity (D at 200 V/50 Hz) Medium: Mixture water-glycol Cooling capacity (D at 200 V/60 Hz) Medium: Mixture water-glycol °C kW °C kW +20 0.3 +20 0.3 D Mains power connection 200 V/50-60 Hz V/ Hz 190-254 / 50 190-244 / 60 3.0 Current input at 200 V A +10 0 -10 -20 0.25 0.2 0.15 0.06 +10 0 -10 -20 0.25 0.2 0.15 0.
Recirculating Cooler Working temperature range Temperature stability Temperature selection: via key pad remote control via personal computer Temperature indication: Resolution Temperature control Temperature sensor Excess temperature protection Low liquid level protection Cooling capacity Medium: Mixture water-glycol Cooling compressor Refrigerant Electrical connections: Computer interface Alarm output 14 FL601 °C °C °C °C kW -20 ... +40 ±0.
Recirculating Cooler Circulating pump: discharge, max.at 0 bar pressure, max. at 0 Liters Filling level indicator Filling volume from ... to Dimensions (WxLxH) Weight Ambient temperature range Return flow temperature IP class according to IEC 60 529 FL601 l/min bar bar Liters cm kg °C °C 23 1.0 ----sight glass 5.5 ... 8 32x50x60 48 5 ... 40 80 max. IP 21 Mains power connection 230 V/50 Hz V/ Hz 207-253 / 50 Current input at 230 V A 4.
Warning functions and safety installations Excess temperature protection Low liquid level protection Alarm message Excess temperature - Warning function Overload protection Classification according to DIN 12876-1 85 °C - fixed value float switch optical + audible (permanent) 75 °C for compressor and pump motor class I Environmental conditions according to IEC 61 010-1: Use only indoor. Altitude up to 2000 m - normal zero. Ambient temperature: +5 ... +40 °C Air humidity: Max. rel.
4. 4.1. Safety notes for the user 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. “Warning of a dangerous situation (Attention! Please follow the documentation).” The danger is classified using a signal word. Read and follow these important instructions. Warning: Describes a possibly highly dangerous situation.
4.3. Safety instructions Follow the safety recommendations to prevent damage to persons or property. Further, the valid safety instructions for working places must be followed. 18 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 always be easily accessible. Place the instrument on an even surface on a pad made of non-inflammable material.
before performing any service or maintenance procedures, or before moving the unit. Always turn off the unit and disconnect the mains cable from the power source before cleaning the unit. Always empty the bath before moving the unit. Transport the unit with care. Sudden jolts or drops may cause damage in the interior of the unit. Observe all warning labels. Never remove warning labels. Never operate equipment with damaged mains power cables.
5. Installation 20 Place the unit on an even surface on a base made of nonflammable material. Cooling machine, pump motor and electronics produce intrinsic heat that is dissipated via the venting openings ! Never cover these openings! Keep at least 20 cm of open space on the front and rear venting grids.
Example: FL300 15 A M P Connect the tubings for cooling the external system to the pump connectors M16x1 for feed and return (12) on the rear of the recirculating cooler. - Feed 15 A M P – Return Connect a piece of tubing to the overflow connector (13) and drain into a suitable vessel, which always has to be placed lower thant the exit „Overflow“. Do not set up the unit in the immediate vicinity of heat sources and do not expose to sun light.
Notice: Flood hazard!. 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. Return flow safety device Should the filling volume of the bath tank not be sufficient, prevent the liquid from flowing back by using shut-off valves.. Order No.
5.1. Tubing Caution: Employ suitable connecting tubing. Make sure that the tubing is securely attached. Avoid sharp bends in the tubing, and maintain a sufficient distance from surrounding walls. Regularly check the tubing for material defects (e.g. for cracks). Preventive maintenance: Replace the tubing from time to time. Recommended tubing: Suitable for Order No. ® 8930008 1 m CR -tubing 8 mm inner dia. (-20 ... +120°C) FL300 8930308 1 m Reinforced tubing 8 mm inner dia. (-40 ...
6.
1 Mains power switch, spash-water protected on off Keypad, spash-water protected Edit keys (set point increase or decrease) Enter key Store set point value / parameter 2.0 2.1 2.2 3.0 3.1 °C 3.2 3.3 Indication LED temperature display Control indicator – Cooling Control indicator – Alarm 4.
13 Overflow connector 14a 14b 15 Handle: front Handle: rear Protection lid for storing place of operating manual 7. 7.1. Operating procedures Bath fluids Caution: No liability for use of other bath liquids! Please contact JULABO before using other than recommended bath fluids. JULABO takes no responsibility for damages caused by the selection of an unsuitable bath fluid Do not use alcohols. Water: The quality of water depends on local conditions.
Recommended bath fluids: Bath fluids soft/decalcified water Temperature range 5 °C to 80 °C See website for list of recommended bath fluids. Contact: see page 7 7.2. Power connection Caution: Only connect the unit to a power socket with earthing contact (PE – protective earth)! We disclaim all liability for damage caused by incorrect line voltages! The power supply plug serves as safe disconnecting device from the line and must be always easily accessible.
7.3. Filling Top view Take care that no liquid enters the interior of the circulating cooler. Connect the tubing from the external system to the pump connectors and check for leaks Respect instructions from page 20 to page 23! Push Check to make sure that the drain tap (8) is closed. Push Filling level indicator (13) 28 H L Unlock and open lid of fill in opening (4) by slightly pushing. Fill in tempering fluid up to marking „H“ of the filling level indicator.
7.4. Switching on / Start - Stop Switching on: The recirculating cooler is turned on and off with the mains switch. The unit performs a self-test. All segments of the 4-digit LED temperature DISPLAY and all indicator lights will illuminate (as illustrated on the left). Then the software version and the type of unit is indicated. Examples: (v 1.02) (FL300) The display "OFF" indicates the unit is ready to operate (standby mode). Start: Press enter for about 4 seconds.
7.5. Setting the temperatures Factory setting: 25 °C Setting can be carried out in the start/stop condition. 1. Press one of the keys for a short moment. The setpoint value instead of the actual value is indicated on the display for about 8 seconds. The value can now be changed. 2. Change value: Press to set a higher value. to set a lower value. Press Keep the keys depressed for the value to change fast. 3. Press enter 30 to store the value.
7.6. AUTOSTART ON / OFF 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 (nonautomatic start mode). This safe operating state is indicated by „OFF“ on the LED temperature display. A complete shutdown of the main functional elements such as compressor and circulating pump is effected simultaneously.
7.7. Remote control: activate – deactivate The recirculating cooler is to be prepared for remote control by a personal computer via the serial interface RS232. Set the interface item from >IOFF< to >ION<. Remote control: activate – deactivate: Switch off recirculating cooler by pressing the mains switch and wait approx. 5 seconds. (Interface OFF) (Interface On) 32 Keep depressed the keys and enter simultaneously and turn on the unit with the mains power switch.
8. Safety installations 8.1. Excess temperature protection + 8.2. This safety installation is independent of the control circuit. When the temperature of the bath fluid has reached the safety temperature (85 °C), a complete shutdown of the compressor and pump is effected. The alarm is indicated by optical and audible signals (continuous tone) and on the LED-DISPLAY appears the error message "Error 14". Low level protection + This safety installation is independent of the control circuit.
Notice: Check the low liquid level protection device at least twice a year! 9. To execute a functional test, drain the liquid until the alarm for low liquid level is triggered. Refill liquid afterwards. Troubleshooting guide / Error messages + Whenever the microprocessor electronics registers a failure, a complete shutdown of the compressor and circulating pump is performed. The alarm light " " illuminates and a continuous signal tone sounds.
The return temperature is above the switch-off value of the high temperature protection (85°C). Check dimensioning of application. Use a stronger recirculating cooler if necessary. 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 service station.
10. 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.
Alarm output Potential-free change-over contact for external alarm signal. Pin 2 and 3 are connected in case of an alarm. Pin 2 and 1 are connected in normal condition or mains switch "Off". or Switching capacity max. 30 W / 30 VA Switching voltage max. 30 V/ Switching current max. 1 A 11. Remote control 11.1. Setup for remote control 5 1 9 Check the interface parameters for both interfaces (on recirculating cooler and PC) and make sure they match. 6 RS232 Interface parameters are pre-determined.
11.2. Communication with a PC or a superordinated data system If the recirculating cooler is put into remote control mode the MULTI-DISPLAY (LED) will read „R -OFF-„ = REMOTE STOP. The recirculating cooler is now operated via the computer. In general, the computer (master) sends commands to the recirculating cooler (slave). The recirculating cooler sends data (including error messages) only when the computer sends a query.
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 recirculating cooler 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. The commands are divided into in or out commands. in commands: asking for parameters to be displayed out commands: setting parameters The out commands are valid only in remote control mode.
11.3. List of commands out commands: Setting parameters or temperature values. Command Parameter Response of recirculating cooler out_mode_05 0 Stop the unit = R –OFF-. out_mode_05 1 Start the unit. out_sp_00 xxx.xx Set working temperature in commands: Asking for parameters or temperature values to be displayed. Command Parameter Response of recirculating cooler version none Number of software version (V X.
11.4. 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. 11.5. Error messages Error messages Description -01 LOW LEVEL ALARM Low liquid level alarm. -05 WORKING SENSOR ALARM Working temperature sensor short-circuited or interrupted.
Error messages Description -12 TEMPERATURE MEASUREMENT ALARM Error in A/D converter. -14 EXCESS TEMPERATURE PROTECTOR ALARM The return temperature is above the switch-off value of the high temperature warning function of 85 °C. Check dimensioning of application. Use a stronger recirculating cooler if necessary. 12. Cleaning / repairing the unit Caution: Always turn off the unit and disconnect the mains cable from the power source before cleaning the unit.
Notice: Risk of injury for hands when mounting the venting grid. To maintain the full cooling performance, clean the condenser from time to time. RS232 ALARM Switch off the unit, disconnect mains power cable. Hold the venting grid, pull out and remove. Clean the ribbed condenser with a vacuum cleaner. Replace the venting grid. Switch on the unit. Cleaning: Clean the outside of the unit using a wet cloth and low surface tension water.
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: Clean the unit in order to avoid any harm to the service personnel Attach a short fault description. When returning a unit, take care of careful and adequate packing. JULABO is not responsible for damages that might occur from insufficient packing.
14. Draining Notice: Store and dispose the used bath fluid according to the laws for environmental protection. Risk of injury for hands when mounting the venting grid. RS232 RS232 Turn off the unit and disconnect the mains cable from the power source. Hold the venting grid, pull out and remove. Slide a short piece of tube onto the drain connection (8) and hold it into a container. Loosen the drain screw a few turns and drain the unit completely.
15. Warranty conditions JULABO GmbH warrants its products against defects in material or in workmanship, when used under appropriate conditions and in accordance with appropriate operating instructions for a period of ONE YEAR. Extension of the warranty period – free of charge With the ‘1PLUS warranty’ the user receives a free of charge extension to the warranty of up to 24 months, limited to a maximum of 10 000 working hours.
JULABO GmbH 77960 Seelbach / Germany Tel. +49 (0) 7823 / 51-0 Fax +49 (0) 7823 / 24 91 Changes without prior notification reserved Printed in Germany info@julabo.de www.julabo.de 1.951.
