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9671017
User manual
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Julabo 9661017, 9661012, 9671017 User manual

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Page 1
Operating manual
Recirculating Coolers
FL1201 FL1203
English
FL1701 FLW1701 FL1703 FLW1703
1.951.4822-V8 11/17 Printed: 13.11.2017
19514822-V8.doc
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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.
The JULABO Quality Management System
Temperature control devices for research and industry are developed, produced, and distributed according to the requirements of ISO 9001 and ISO 14001. Certificate Registration No. 01 100044846
Unpacking and inspecting
Unpack the recirculating cooler and accessories and check for damages incurred during transit. These should be reported to the responsible carrier, railway, or postal authority, and a request for a damage report should be made. These instructions must be followed fully for us to guarantee our full support of your claim for protecting against loss from concealed damage. The form required for filing such a claim will be provided by the carrier.
Å Lifting device for transportation by crane see page 18
Printed in Germany Changes without prior notification reserved
Important: keep original operating manual for future use
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TABLE OF CONTENTS
1. Intended use ............................................................................................................................... 4
1.1. Description ...................................................................................................................... 4
2. Operator responsibility – Safety instructions ............................................................................... 4
2.1. Disposal ...................................................................................................................... .... 6
2.2. EC Conformity ................................................................................................................. 7
3. Technical specifications .............................................................................................................. 9
3.1. Cooling water connection .............................................................................................. 13
4. Safety notes for the user ........................................................................................................... 14
4.1. Explanation of safety notes ........................................................................................... 14
4.2. Explanation of other notes ............................................................................................. 14
4.3. Safety instructions ......................................................................................................... 14
5. Installati on ................................................................................................................................ 16
5.1. Tubing ........................................................................................................................... 17
6. Operating controls and functional elements .............................................................................. 18
7. Operating procedures ............................................................................................................... 21
7.1. Bath fluids ..................................................................................................................... 21
7.2. Power connection .......................................................................................................... 21
7.3. Filling ............................................................................................................................ 22
7.4. Switching on / Start - Stop ............................................................................................. 22
7.5. Setting the fee d pressure .............................................................................................. 23
7.6. Setting the temp eratures ............................................................................................... 23
7.7. AUTOSTAR T ON / OFF ................................................................................................ 24
7.8. Remote control: activate – deactivate ............................................................................ 24
8. Safety installations .................................................................................................................... 25
8.1.
8.
9. Trouble s h o oting guide / Error mes s ages .................................................................................. 26
10. Electrical connections ...................................................................................................... 28
11. Remote control ................................................................................................................ 28
11.1. Setup for remote control ................................................................................................ 28
11.2. Communication with a PC or a superordinated data system.......................................... 29
11.3. List of commands .......................................................................................................... 30
11.4. Status messages ........................................................................................................... 30
11.5. Error messages ............................................................................................................. 30
12. Cleaning / repairing the unit ............................................................................................. 31
12.1. Draining ........................................................................................................................ 33
13. Adequate storing of operating manual
14. Warranty conditions ......................................................................................................... 34
Excess temperature protection ...................................................................................... 25
2. L
ow level protection ...................................................................................................... 25
............................................................................. 33
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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. Description
; The recirculating coolers are operated via the splash-proof keypad. The
implemented microprocessor technology allows to set and to store the setpoint that can be indicated on the LED temperature display.
; The PID temperature regulation is used to withdraw heat from the bath fluid by
means of the cooling machine and to automatically regulate the required need.
; Electrical connections:
PID1
RS232
1. The serial interface RS232 allows modern process technology without additional interface.
2. Alarm output for external alarm message.
; Manually adjustable by-pass (handwheel) to reduce the pump capacity
(e. g. for glass equipment).
2. 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.
The operator is responsible for the qualification of the personnel operating the units. ¾ 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.
¾ Make sure all persons tasked with operating, installing, and maint aining the unit have read and
understand the safety information and operating instructions.
¾ When using hazardous materials or materials that could become hazardous, the unit may be
operated only by persons who are absolutely familiar with these materials and the unit. These persons must be fully aware of possible risks.
If you have any questions concerning the operation of your unit or the information in this manual, please contact us!
Contact
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Safety recommendations for the op erator
¾ You received a product conceived for industrial use. Nevertheless, avoid strikes to the housing,
vibrations, damages to the keypad foil (keys, display) or contamination.
¾ Make sure the product is regularly checked for proper condition. Regularly check (at least every
2 years) the proper condition of the mandatory, warning, prohibition and safety labels.
¾ Take care that the mains supply features a low impedance to avoid any negative affects on the
instrument being operated in the same mains.
¾ This unit is designed for operation in a controlled electromagnetic environment. This means that
transmitting devices (e.g. cellular phones) should not be used in the immediate vicinity. Magnetic 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.
¾ Permissible ambient temperature: max. 40 °C, min. 5 °C. ¾ Permissible relative air humidity: 50 % (40 °C). ¾ Do not store in an aggressive atmosphere. Protect from contaminations. ¾ Do not expose to sunlight.
Appropriate Operation
Only qualified personnel is authorized to perform configuration, installation, maintenance and repairs of the water bath. Routine operation can also be carried out by untrained personnel who should however be instructed by trained personnel.
Use
For the use according to the intended purpose, special material requirements have to be respected (bath fluids). Only use non-acid and non corroding materials. Observe all warnings for the used materials (bath fluids) and the respective instructions (safety data sheets). Only use the unit in well ventilated areas. (see page 16). The recirculating coolers are not for use in explosive atmosphere
When using hazardous materials or materials that could become hazardous, the operator must affix the enclosed safety labels to the front of the unit so they are highly visible:
1
2
or 2
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.
Danger area. Attention! Observe instructions. (operating manual, safety data sheet)
Carefully read the user information prior to beginning operation. Scope: EU
Carefully read the user information prior to beginning operation. Scope: USA, NAFTA
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2.1. Disposal
This unit contains the refrigerant R404A or R452A– at this time considered not to have any negative effects on the ozone layer. However, during the long operating period of the unit, disposal prescriptions may change. So only qualified personnel should take care of 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). This directive requires electrical and electronic equipment marked with a crossed­out trash can to be disposed of separately in an environmentally friendly manner. Contact an authorized waste management company in your country. Disposal with household waste (unsorted waste) or similar collections of municipal waste is not permitted!
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2.2. EC Conformity
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3. Technical specifications
Recirculating Cooler
Cooling Working temp e rature range °C -20 ... +40 -20 ... +40 Temperature stability °C ±0.5 Temperature selection: digital
via key pad indication on LED-DISPLAY
remote control via personal computer indication on monitor Temperature indication: LED-DISPLAY
Resolution °C 0.1 Temperature control PID 1 Temperature sensor Pt 100 Excess temperature protection 85 °C - fixed value Low liquid level protection float switch Cooling capacity Medium: Mixture water-glycol Cooling compressor 1-stage Refrigerant R404A, R452A*
Electrical connections:
Computer interface RS232
Alarm output for external alarm signal
°C kW
FL1201 FL1203 air cooled air cooled
+20 0 -10 +20 0 -10
1.2 0.9 0.6 1.2 0.8 0.5
Circulating pump:
discharge, max. at 0 bar l/min 23 40
pressure, max. at 0 liter bar 1.0
pressure, adjustable at 0 Liter bar ---- 0.5 ... 3.0 Feed pressure indication bar Manometer Manometer Filling level indicator sight glass Filling volume from ... t o liters 12 ... 17 Dimensions (WxLxH) cm 50x76x64 Weight kg 7 91 Ambient temperature range °C 5 ... 40 Return flow temperature °C 80 max. IP class according to IEC 60 529 IP 21
Mains power connection V/ Hz 230 / 50 230 / 50 Current input at 230 V A 7 12 Mains power connection V/ Hz 208 - 230 / 60 230 / 60 Current input at 208V / 230 V A 6 ----
at 230 V A 11
Mains power connection V/ Hz 115 / 60 ----
Current input at 115 V
* At FL1201 230 V / 50 Hz; 230 V / 60 Hz and FL1203 230 V / 50 Hz All measurements have been carried out at: rated voltage and frequency, ambient temperature: 20 °C
A 14 ----
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Recirculating Cooler
Cooling Working temp e rature range °C -20 ... +40 -20 ... +40 Temperature stability °C ±0.5 Temperature selection: digital
via key pad indication on LED-DISPLAY
remote control via personal computer indication on monitor Temperature indication: LED-DISPLAY
Resolution °C 0.1 Temperature control PID 1 Temperature sensor Pt 100 Excess temperature protection 85 °C - fixed value Low liquid level protection float switch Cooling capacity Medium: Mixture water-glycol Cooling compressor 1- stage Refrigerant R404A, R452A*
Electrical connections:
Computer interface RS232
Alarm output for external alarm signal
°C kW
FL1701 FLW1701 air cooled water cooled
+20 0 -10 +20 0 -10
1.7 1.1 0.85 1.7 1.1 0.85
Circulating pump:
discharge, max. at 0 bar l/min 23 23
pressure, max. at 0 liter bar 1.0 1.0
pressure, adjustable at 0 Liter Feed pressure indication bar Manometer Manometer Filling level indicator sight g lass Filling volume from ... t o liters 12 ... 17 Dimensions (WxLxH) cm 50x76x64 Weight kg  82 Ambient temperature range °C 5 ... 40 Return flow temperature °C 80 max. Cooling water
Flow rate at 20 °C inlet temperature l/min ----- 2.8
Mains power connection V/ Hz 230 / 50 230 / 50 Current input at 230 V A 10 10 Mains power connection V/ Hz 208 - 230 / 60 208 - 230 / 60 Current input at 208V / 230 V A 8 8 Mains power connection V/ Hz 115 / 60 115 / 60 Current input at 115 V A 15 13
* At FL1701 230 V / 50 Hz
All measurements have been carried out at: rated voltage and frequency, ambient temperature: 20 °C
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Recirculating Cooler
Cooling Working temp e rature range °C -20 ... +40 -20 ... +40 Temperature stability °C ±0.5 Temperature selection: digital
via key pad indication on LED-DISPLAY
remote control via personal computer indication on monitor Temperature indication: LED-DISPLAY
Resolution °C 0.1 Temperature control PID 1 Temperature sensor Pt 100 Excess temperature protection 85 °C - fixed value Low liquid level protection float switch Cooling capacity Medium: Mixture water-glycol Cooling compressor 1- stage Refrigerant R404A, R452A*
Electrical connections:
Computer interface RS232
Alarm output for external alarm signal
°C kW
FL1703 FLW1703 air cooled water cooled
+20 0 -10 +20 0 -10
1.7 1.0 0.75 1.7 1.0 0.75
Circulating pump:
discharge, max. at 0 bar l/min 40 40
pressure, max. at 0 liter bar 0.5 ... 3.0 0.5 ... 3.0
pressure, adjustable at 0 Liter Feed pressure indication bar Manometer Manometer Filling level indicator sight glass Filling volume from ... t o liters 12 ... 17 Dimensions (WxLxH) cm 50x76x64 Weight kg 91 88 Ambient temperature range °C 5 ... 40 Return flow temperature °C 80 max. Cooling water
Flow rate at 20 °C inlet temperature l/min ----- 2.8
Mains power connection V/ Hz 230 / 50 230 / 50 Current draw at 230 V A 12 11 Mains power connection V/ Hz 208 - 230 / 60 208 - 230 / 60 Current draw at 208V / 23 0 V A 11 11
* At FL1703 230 V / 50 Hz and FLW1703 230 V / 50 Hz
All measurements have been carried out at: rated voltage and frequency, ambient temperature: 20 °C
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Warning functions and safety installations
Excess temperature protection 85 °C - fixed value Low liquid level protection float switch Alarm message optical + audible (permanent) Excess temperature - Warning function 82 °C Overload protection for compressor and pump motor Classification according to DIN 12876-1 class I
Environmental conditions according to IEC 61 010-1:
Use only indoor. Altitude up to 200 0 m - normal zero. Ambien t tempera ture: +5 ... +40 °C 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 Max. mains fluctuations of ±10 % are permissible.
The unit corresponds to Class I
Overvoltage category II Pollution degree 2
Caution:
The unit is not for use in explosive environment.
EMC requirements
The device is an ISM device of group 1 per CISPR 11 (uses HF for internal purposes) and is classified in class A (industrial and commercial sector).
Notice:
Devices of class A are intended for the use in an industrial electromagnetic
environment.
When operating in other electromagnetic environments, their electromagnetic
compatibility may be impacted.
Information about the used refrigerants
The Regulation (EU) No. 517/2014 on fluorinated greenhouse gases applies to all systems which contain fluorinated refrigerants and replaces (EC) 842/2006. The aim of the Regulation is to protect the environment by reducing emissions of fluorinated greenhouse gases. Among other things it regulates the emission limits, use and recovery of these substances. It also contains requirements for operators of systems which require / contain these substances to function. Under Regulation 517/2014, the operator of a system of this nature has the following duties:
x The operator must ensure that the equipment is checked at regular intervals for leaks. x These intervals depend on the CO
refrigerant fill volume and type of refr igerant. The CO the model plate.
x The operator undertakes to have maintenance, repair, service, recovery and recycling work
carried out by certified personnel who have been authorized by JULABO.
x All such work must be documented. The operator must keep recor ds and archive them for at
least five years. The records must be submitted to the relevant authority on request.
equivalent of the system. This is calculated from the
2
equivalent of your system is shown on
2
Refer to the tex t of the Regulation for fu rther information.
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3.1. Cooling water connection
Only for water cooled models - FLW: Cooling water pressure (IN / OUT) max. 6 bar Difference pressure (IN - OUT) 2 bar up to 6 bar Flow rate typical 2.8 l/min Cooling water temperature <20 °C
Recommended quality of cooling water:
pH – value
Sulfate [SO4 2- ] < 100 ppm Hydrocarbonate [HCO3- ] / Sulphate [SO4 2-] > 1 ppm Hardness [Ca2+, Mg2+] / [HCO3-] > 0,5 dH Alkalinity 60 ppm < [HCO3-] < 300 ppm Conductivity ȝVFP Chloride (CL-) < 50 ppm Phosphate (PO43-) < 2 ppm Ammonia (NH3) < 0,5 ppm Free Chlorine < 0,5 ppm Ferri Ions (Fe3+ ) < 0,5 ppm Mangano Ions (Mn2+) < 0,05 ppm Carbon dioxide (CO2) < 10 ppm Hydrosulfide (H2S) < 50 ppm Content of oxygen < 0,1 ppm Algae growth LPSHUPLVVLEOH
6XVSHQGHGVROLGV LPSHUPLVVLEOH
Notice:
Danger of corrosion of heat exchanger due to unsuitable quality of cooling water.
x Due to its high content of lime hart water is not suitable for cooling and causes
calcination of the heat exchanger.
x Ferrous water or water containing ferrous particles will cause formation of rust
even in heat exchangers made of stainless steel.
x Chlorous water will cause pitting corrosion in heat exchangers made of stainless
steel.
x Due to its corrosive characteristics distilled and deionized water is unsuitable and
will cause corrosion of the bath. .
x Due to its corrosive characteristics sea water is not suitable. x Due to its microbiological (bacteria) components which settle in the heat
exchanger untreated and unpurified river water and water from cooling towers is unsuitable.
x Avoid particulate matter in cooling water. x Avoid putrid water.
Notice: Cooling water circuit
Risk of oil leaking from the cooling circuit (compressor) of the recirculating cooler into the cooling water in case of a fault in the circuit! Observe the laws and regulations of the water distribution company valid in the location where the unit is operated.
7,5 to 9,0
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4. Safety notes for the user
4.1. Explana tion of safet y 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. If these instructions are not followed, serious injury and danger to life could result.
Caution:
Describes a possibly dangerous situation. If this is not avoided, slight or minor injuries could result. A warning of possible property damage may also be contained in the text.
Notice:
Describes a possibly harmful situation. If this is not avoided, the product or anything in its surroundings can be damaged.
4.2. Explanation of other notes
Note!
Draws attention to something special.
Important!
Indicates usage tips and other useful information.
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.
x Only connect the unit to a power socket with earthing contact (PE – protective
earth)!
x The power supply plug serves as a safe disconnecting device from the line and
must always be easily accessible.
x Place the instrument on an even surface on a pad made of non-inflammable
material.
x Do not stay in the area below the unit. x Make sure you read and understand all instructions and safety precautions listed
in this manual before installing or operating your unit.
x Never operate the unit without bath fluid in the bath. x 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).
x Use suitable connecting tubing. x Make sure that the tubing is securely attached.
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x Avoid sharp bends in the tubing, and maintain a sufficient dist ance from
surrounding walls.
x Regularly check the tubing for material defects (e.g., for cracks). x Never operate damaged or leaking equipment. x Always turn off the unit and disconnect the mains cable from the power source
before performing any service or maintenance procedures, or before moving the unit.
x Always turn off the unit and disconnect the mains cable from the power source
before cleaning the unit.
x Always empty the bath before moving the unit. x Transport the unit with care. x Sudden jolts or drops may cause damage in the interior of the unit. x Observe all warning labels. x Never remove warning labels. x Never operate equipment with damaged mains power cables. x Repairs are to be carried out only by qualified service personnel.
x Risk of injury for hands. Close cover carefully.
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5. Installation
A
A
A
M
P
A
M
Rear view:
16
16
M
M P
P
OU
IN
Example: FL1201 (air cooled)
x Place the unit on an even surface on a base made of nonflammable
material.
x Cooling machine, pump motor and electronics produce intrinsic heat
that is dissipated via the venting openings.! Never cover these openings!
x Keep at least 20 cm of open space on the front and rear venting grids. x Do not set up the unit in the immediate vicinity of heat sources and do
not expose to sun light.
x 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.
For a fault (leakage) in the refrigeration system, the standard EN 378 prescribes a certain room space to be available for each kg of refrigerant. > For 0.52 kg of refrigerant R-404A, 1 m
3
of spac e i s
required.
3
> For 0.423 kg of r efrigeran t R-452A, 1 m
of space is
required.
x Connect the tubings for cooling the external system to
the pump connectors M16x1 for feed and return (14) on the rear of the recirculating cooler.
1
1 P
min
OU
I
OUT
IN
Example: FL1703 (water cooled, pressure, adjustable 0,5 ... 3, 0 bar)
OUT
IN
Example: PVC-tubing
12 mm inner dia.
- Feed – Return
x Connect a piece of tubing to the overflow connector
(15) and drain into a suitable vessel, which always has to be placed lower thant the exit „Overflow“.
x Turn the adjusting valve (14) counter-clockwise to set
the lowest manometric pressure.
x Before operating the unit after transport, wait about
one hour after setting it up. This will allow any oil that
has accumulated laterally during transport to flow back down thus ensuring maximum cooling performance of the compressor.
x Only water cooled models - FLW:
Ensure circulation of cooling water by connecting the tubing to cooling water inlet (IN) and outlet (OUT) on the rear (16) of the recirculating cooler.
Cooling water see page 13. Cooling water connectors G3/4" external thread
Tubing 12 mm inner dia. tubing IN Cooling water inlet
OUT Cooling water outlet
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Caution: Pump pressure
x Determine and check the max. admissible pressure for the external circuit before
Return flow safety device
Order No. Description
8 970 456 Shut-off valve for loop circuit, M16x1 FL1201 / FL(W)1701 8 970 454 Shut-off valve G ¾“ FL1203 / FL(W)1703
putting the unit into operation. The max. pressure is determined by the weakest element in the circuit (e. g. glass equipment).
x Securely attach all tubing to prevent slipping.
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.
Should the filling volume of the bath tank not be sufficient, prevent the liquid from flowing back by using shut-off valves..
Suitable for
The following questions shall help to recognize possible dangers and to reduce the risks to a minimum.
x Are all tubes and electrical cables connected and installed?
Note: sharp edges, hot surfaces in operation, moving machine parts, etc.
x What to do when a dangerous substance was spilled on or in the unit?
Before starting to work, obtain information concerning the substance and determine the method of decontamination.
5.1. Tubing
Caution:
x Employ suitable connecting tubing. x Make sure that the tubing is securely attached.
Recommended tubing:
Order No. Description
8930308 1 m CR 8930312 1 m Reinforced tubing 8 mm inner dia. (-40 ... +120 °C) FL1201 8930319 1 m Reinforced tubing ¾“ inner dia. (-40 ... +120 °C) FL(W)1203/1703
Tubing insulation
8930412 1 m Insulation, 18 mm inner dia. Reinforced tubing 8 mm inner dia. 8930413 1 m Insulation, 23 mm inner dia. Reinforced tubing 12 mm inner dia. 8930419 1 m Insulation, 29 mm inner dia. Reinforced tubing ¾“ inner dia.
Tube clamps
8970481 2 Tube clamps, size 2 Reinforced tubing 8 mm inner dia. 8970482 2 Tube clamps, size 3 Reinforced tubing 12 mm inner dia. 8970483 2 Tube clamps, size 4 Reinforced tubing ¾“ inner dia.
x Avoid sharp bends in the tubing, and maintain a sufficient distance from
surrounding walls.
x Regularly check the tubing for material defects (e.g. for cracks). x Preventive maintenance: Replace the tubing from time to time.
®
-tubing 8 mm inner dia. (-20 ... +120 °C) FL1201
Suitable for
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6. Operating controls and functional elements
0
5
0
Front view Rear view
1234
5
RS232 ALARM
6
OUT
IN
7
8
9
Air cooled model feed pressure not adjustable
1
1234
11
12
13
1
17
5
RS232 ALARM
6
OUT
7
IN
11
12 13
14 13
15
8
OUT
IN
9
Water cooled model (16)
1
Lifting device for transportation by crane
or
and handle at the front
with feed pressure adjusting valve (14)
16 17
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°C
1
2.0
2.1
2.2
3.0
3.1
Mains power switch, spash-water protected
Keypad, spash-water protected
on
off
Edit keys (set point increase or decrease) Enter key Store set point value / parameter
Indication
LED temperature display
3.2
3.3
Control indicator – Cooling Control indicator – Alarm
4 Protection lid for fill in opening 5
Interface RS232: remote control via personal computer
RS232
6
Alarm output (for external alarm signal)
7 Feed pressure indication: Manometer 8 Filling level indication 9 Drain tap with drain port 10 Venting grid, removable 11
Mains fuses: 16 A ( 230 V unit) 20 A (115 V unit)
12 Mains power cable with plug 13
Pump connector OUT – pressure pump Pump connector IN– Return
FL/FLW1201 M16x1 FL/FLW1203 G ¾“ external thread FL/FLW1703 G ¾“ external thread
14 Feed pressure adjusting valve 15
Overflow connector
16
OUT
Only water cooled models IN Cooling water inlet
IN
OUT Cooling water outlet G3/4" external thread 12 mm inner dia. tubing
17 Castor (at the back) 18 Protection lid for storing place of operating manual
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Top view
Push
Push
18
4
4 Protection lid for fill in opening
18 Protection lid for storing place of operating manual
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7. Operating procedures
7.1. 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. x Due to the high concentration of lime, hard water is not suitable for temperature
control because it leads to calcification in the bath.
x Ferrous water can cause corrosion - even on stainless steel. x Chloric water can cause pitting corrosion. x Distilled and deionized water is unsuitable. Their special properties cause corrosion
in the bath, even in stainless steel.
Water: - No liablity for use with water. Danger of freezing at working temperatures <5 °C.
Recommended bath fluids: Bath fluids Temperature range
soft/decalcified water 5 °C to 80 °C
See website for list of recommended bath fluids.
Contact: see page 4
7.2. Power connection
Caution:
x Only connect the unit to a power socket with earthing contact (PE – protective earth)!
This power socket must be protected by fuses. The release current of the fuses may not be higher than the value specified for the instrument fuses. We disclaim all liability for damage caused by incorrect line voltages!
x The power supply plug serves as safe disconnecting device from the line and must
be always easily accessible.
x Never operate equipment with damaged mains power cables. x Regularly check the mains power cables for material defects (e.g. for cracks).
Make sure that the line voltage and frequency match the supply voltage specified on the
type plate.
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7.3. Filling
Notice:
Risk of injury for hands. Close cover carefully.
Top view
Take care that no liquid enters the interior of the circulating cooler.
L Connect the tubing from the external system to the pump
connectors and check for leaks
Respect instructions from page 16 to page 17!
Push
Push
H
L
L Check to make sure that the drain tap (9) is closed.
x Unlock and open lid of fill in opening (4) by slightly pushing.
x Fill in tempering fluid up to marking „H“ of the filling level indicator.
x Turn the mains switch (1) on
(Switching on - see page 22)
x Switch on unit. To do so press button x Tempering fluid is pumped into the externally connected system.
Refill fluid up to marking „H“.
x The recirculating cooler is ready for operation.
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
Ð Ð
Ð
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) (FL1703)
The display "OFF" indicates the unit is ready to operate (standby mode).
for approx. 4 seconds.
22
Start: Press enter
The LED temperature DISPLAY indicates the actual bath temperature.
Stop: Press enter
Turn the unit off with the mains power switch.
for about 4 seconds.
for about 4 seconds.
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L
7.5. Setting the feed pressure
Set the max. permissible feed pressure (example: 2 bar) by slowly closing the adjusting valve (14) on the rear and looking at the
max.
manometer (7).
L The max. pressure is determined by the weakest element in the
circuit (e. g. glass equipment).
Fixing a leak on the adjustment valve
The stuffing box gland on the adjustment valve must be tightened if it develops a leak.
1
2
1. Undo the nut (a.f. 8) and remove the hand wheel on the adjustment valve,
2. Unscrew the stuffing box gland cover,
3. Remove the insulation,
4. + 5. Tighten the nut on the seal (a.f. 27),
6. Place the seal back over the screw connection,
7. Secure the stuffing box gland cover,
8. Att ach the hand wheel to the adjustment valve and secure the
nut. The adjustment valve must turn easily after the nut has been tightened.
7.6. 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.
3
4
5
2. Change value:
to set a higher value. to set a lower value.
Press Press
Keep the keys depressed for the value to change fast.
3. Press enter to store the value.
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7.7. 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 (non-automatic 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. Should such a safety standard not be required, the AUTOSTART function (automatic start mode) may be activated, thus allowing the start of the circulator directly by pressing the mains power switch or using a timer.
Keep depressed enter turn on the unit with the mains power switch. For a short while the LED DISPLAY indicates the effective start mode:
ÖAUTOSTART on. ÖAUTOSTART off.
Warning:
For supervised or unsupervised operation with the AUTOSTART function, avoid any hazardous situation to persons or property. The circulator does no longer conform to N.A.M.U.R. recommendations.
7.8. 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:
x Switch off recirculating cooler by pressing the mains switch and
(Interface OFF)
(Interface On)
Ð
wait approx. 5 seconds.
x Keep depressed the keys
turn on the unit with the mains power switch.
>I OFF< No remote control via RS232 (Factory setting) >I On< Remote control via RS232
and
and enter simultaneously and
Ð Ð Ð
24
L The software version and the type of unit is indicated
(see example on the left). The display "rOFF" indicates the unit is ready to be operated via
remote control.
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8. Safety installations
8.1. Excess temperature protection
This safety installation is independent of the control circuit.
+8
8.2. Low level protection
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".
+8
This safety installation is independent of the control circuit. If the low liquid level protection device is triggered, a complete shutdown of the compressor and circulating pump is effected. The alarm is indicated by optical and audible signals (continuous tone) and on the LED-DISPLAY appears the error message
Caution:
For refill always use the same bath fluid type that is already in the bath.
Notice:
Check the low liquid level protection device at least twice a year! To execute a functional test, drain the liquid until the alarm for low liquid level is
triggered. Refill liquid afterwards.
"Error 01".
L Turn off the unit with the mains switch, refill bath fluid and turn the unit on
again!
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9. Troubleshooting guide / Error messages
+8
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 LED temperature display indicates the cause for the alarm in form of a code.
Press enter
x The recirculating cooler is operated without bath fluid, or the liquid level is
insufficient. Replenish the bath tank with the bath fluid.
x Tube breakage has occured (insufficient filling level due to excessive bath
fluid pumped out). Replace the tubing and replenish the bath tank with the bath fluid.
Cable of the working temperature sensor interrupted or short-circuited.
Error in A/D converter
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.
Warning without a complete shutdown of the unit
Excess temperature warning starting at 82 °C The return temperature soon reaches the swith-off value of the high temperature protection (85 °C).
Cooling of the condenser is affected. (see page 31)
x Clean air-cooled condenser. x Check the flow rate and cooling water temperature on water-cooled
condenser.
If the unit cannot be returned to operation, contact an authorized JULABO service station.
to quit the audible signal.
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Example:
Disturbances that are not indicated.
Overload protection:: a) for cooling machine b) for pump motor After a short cooling interval, the unit will automatically start running.
Warning:
Before exchanging the fuses, turn off the mains power switch and disconnect the power plug from the mains socket! Only use fine fuses with a nominal value as specified.
Fuses:
The mains fuses on the rear of the unit may easily be exchanged as shown on the left.
Fine fuses –16 A (230 V unit) Fine fuses –20 A (115 V unit)
Manufacturer Supplier Type Order No.
Schurter Schurter G-fuse insert SPT T16 A 5x20mm 0001.2516 Schurter Schurter G-fuse insert 172600
TD20,0 A 6,3x32 mm
7043.8230
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10. Electrical connections
96
96
5
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.
5
RS232C
1
Accessories:
Order No. Description
8 980 073 RS232 interface cable 9-pol./9-pol. , 2,5 m 8 900 110 USB interface adapter cable
RS232 serial interface
This port can be used to connect a computer with an RS232 cable for remote control of the recirculating cooler.
Pin assignments: Pin 2 RxD Receive Data
Pin 3 TxD Transmit Data Pin 5 0 V Signal GND Pin 7 RTS Request to send Pin 8 CTS Clear to send
Pin 1; 4; 6, 9 Reserved - do not use!
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".
Switching capacity max. 30 W / 30 VA Switching voltage max. 30 Va/ Switching current max. 1 A
11. Remote control
11.1. Setup for remote control
1
RS232
Check the interface parameters for both interfaces (on recirculating cooler and PC) and make sure they match.
Interface parameters are pre-determined.
Type RS232 Baudrate 4800 bauds Parity even Handshake hardware handshake
or
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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 c ooler 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.
In remote control mode: After a power interruption the order to start and all values which have to be adjusted must be resent from the personal computer via the interface. AUTOSTART is not possible.
A transfer sequence consists of:
x command out/in command x space (; Hex: 20) out/in command
x parameter (the character separating decimals in a group is the
period) out command
x end of file (; Hex: 0D) out/in command x The response (data string) after an in command is always followed by a
line feed (LF, Hex: 0A).
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.
Examples: Set the working temperature to15.5 °C: out_sp_00
Ask for the working temperature in_sp_00 Response from the recirculating cooler: 15.5
LF
15.5
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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 out_sp_00 xxx.xx
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.xx) status none in_pv_00 none Actual bath temperature. in_sp_00 none Working temperature in_mode_05 none
Start the unit. Set working temperature
Status message, error message (see page 30 )
Recirculating cooler in Stop/Start condition: 0 = Stop 1 = Start
11.4. Status messages
Status messages Description
00 MANUAL STOP 01 MANUAL START 02 REMOTE STOP 03 REMOTE START
Recirculating cooler in „OFF“ state. Recirculating cooler in keypad control mode. Recirculating cooler in „r OFF“ state. Recirculating cooler in remote control mode.
11.5. Error messages
Error messages Description
-01 LOW LEVEL ALARM
-05 WORKING SENSOR ALARM
-03 EXCESS TEMPERATURE WARNING
-07 I2C-BUS ERROR
-08 INVALID COMMAND
-09 COMMAND NOT ALLOWED IN CURRENT OPERATING MODE
-10 VALUE TOO SMALL
-11 VALUE TOO LARGE
Low liquid level alarm. Working temperature sensor short-circuited or
interrupted.
High temperature warning. Starting at 82 °C (no deactivation) The return temperature soon reaches the switch-off
value of the high temperature warning function (85 °C) Internal error when reading or writing the I Invalid command. Invalid command in current operating mode.
Entered value too small. Entered value too large.
2
C bus.
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Page 31
Error messages Description
-12 TEMPERATURE MEASUREMENT ALARM
-14 EXCESS TEMPERATURE PROTECTOR ALARM
-20 WARNING: CLEAN CONDENSOR OR
CHECK COOLING WATER CIRCUIT OF REFRIGERATOR
Error in A/D converter.
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.
Cooling of the condenser is affected. Clean air-cooled condenser. Check the flow rate and cooling water temperature on water-cooled condenser.
12. Cleaning / 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. Service and repair work may be performed only by authorized electricians.
Notice:
Risk of injury for hands when mounting the venting grid.
Air cooled models = FL
RS232 ALARM
To maintain the full cooling performance, clean the condenser from time to time.
x Switch off the unit, disconnect mains power cable. x Hold the venting grid, pull out and remove. x Clean the ribbed condenser with a vacuum cleaner. x Replace the venting grid. x Switch on the unit.
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OUT
Water cooled models = FLW
In order to maintain a good condition of the cooling compressor, the sieve in the cooling water input should be cleaned in regular intervals.
IN
x Switch the unit off, disconnect the power plug. x Interrupt the cooling water input. x Disconnect the tubing from the nozzle „IN“ and take out the dirty
sieve.
x Clean the sieve. x Put in the sieve and reconnect the tubing. x Open the cooling water input. x Take care the tubing connection is not leaking. x The unit is ready to operate again.
Cleaning:
Clean the outside of the unit using a wet cloth and low surface tension water. 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:
Before asking for a service technician or returning a JULABO instrument for repair, please contact an authorized JULABO service station.
When returning the unit: x Clean the unit in order to avoid any harm to the service
personnel
x Attach a short fault description. x When returning a unit, take care of careful and adequate
packing.
x 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.
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Page 33
12.1. 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.
x Turn off the un i t and disconnect the mains cab le from
the power source.
x Hold the venting grid, pull out and remove.
x Slide a short piece of tube onto the drain connection
and hold it into a container.
x Open the drain tap and empty the unit completely.
x Close the drain tap and replace the venting grid.
RS232 ALARM
13. Adequate storing of operating manual
Store the operating manual at the foreseen place at the unit and lock
it by means of the protection lid (18).
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14. 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.
To apply for this extended warranty the user must register the unit on the JULABO web site indicating the serial no. 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.
Any other compensation claims are excluded from this guarantee.
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