Julabo FL2503, FLW2503, FL2506, FLW2506, FL4003 Operating manual

English

2

A

Operating manual

Recirculating Coolers

FL2503 FLW2503
FL2506 FLW2506

FL4003 FLW4003
FL4006 FLW4006

RS23

FL2506

°C

LARM

JULABO USA, Inc.
884 Marcon Boulevard
Allentown, PA 18109
Phone: [phone]
Fax: [phone]
info @ julabo.com

19534829-V1.doc Print date: 02.01.2013

www.julabo.com

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 9001:2008. Certificate Registration No. 01 100044846

Unpacking and inspecting

1.953.4829-V1 01/13 Printed in Germany Changes without prior notification reserved

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.

 Lifting device for transportation by crane see page 18

Important: keep 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

3. Technical specifications ................................................................................................................ 7

3.1. Cooling water connection ................................................................................................ 12

4. Safety notes for the user ............................................................................................................ 13

4.1. Explanation of safety notes ............................................................................................. 13

4.2. Explanation of other notes .............................................................................................. 13

4.3. Safety instructions ........................................................................................................... 13

5. Installation .................................................................................................................................. 15

5.1. Tubing ............................................................................................................................. 17

6. Operating controls and functional elements ............................................................................... 18

7. Operating procedures ................................................................................................................. 20

7.1. Bath fluids ....................................................................................................................... 20

7.2. Power connection ........................................................................................................... 20

7.3. Filling ............................................................................................................................... 21

7.4. Switching on / Start - Stop .............................................................................................. 21

7.5. Setting the feed pressure ................................................................................................ 22

7.6. Setting the temperatures ................................................................................................. 22

7.7.

7.8. Remote control: activate – deactivate ............................................................................. 23

8. Safety installations...................................................................................................................... 23

8.1. Excess temperature protection ....................................................................................... 23

8.2. Low level protection ........................................................................................................ 23

9. Troubleshooting guide / Error messages .................................................................................... 24

10. Electrical connections ....................................................................................................... 26

11. Remote control .................................................................................................................. 27

11.1. Setup for remote control ................................................................................................. 27

11.2. Communication with a PC or a superordinated data system .......................................... 27

11.3. List of commands ............................................................................................................ 28

11.4. Status messages ............................................................................................................ 28

11.5. Error messages ............................................................................................................... 29

12. Cleaning / repairing the unit .............................................................................................. 30

12.1. JULABO Service – Online remote diagnosis .................................................................. 32

12.2. Draining ........................................................................................................................... 33

13. Adequate storing of operating manual .............................................................................. 33

14. WARRANTY PROVISIONS .............................................................................................. 34

AUTOSTART ON / OFF .................................................................................................. 22

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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

PID1

RS232

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:

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.
 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.

 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.

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If you have any questions concerning the operation of your unit or the information in this manual,
please contact us!

Contact

Safety recommendations for the operator

 You received a product conceived for industrial use. Nevertheless, avoid strikes to the housing,

vibrations, damages to the keypad foil (keys, display) or contamination.

 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.

 Take care that the mains supply features a low impedance to avoid any negative affects on the

instrument being operated in the same mains.

 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.

 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.

JULABO USA, Inc.
884 Marcon Boulevard
Allentown, PA 18109

Phone: [phone]
Fax: [phone]
info @ julabo.com
www.julabo.com

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 14).
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:

If this unit is intended for use within the United States of America, all 3 warning labels must be affixed

to the housing of the unit prior to use. Directions for the positioning of the individual warning labels are
enclosed with the warning labels included in the delivery. Warning labels must be easily visible to
users.

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1

Warning label W00: Colors: yellow, black
Danger area. Attention! Observe instructions.
(operating manual, safety data sheet)

2

or
2

3

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.

Mandatory label M018: Colors: blue, white
Carefully read the user information prior to beginning operation.

Scope: EU

Semi S1-0701 Table A1-2 #9
Carefully read the user information prior to beginning operation.

Scope: USA, NAFTA

Warning label Proposition 65

2.1. Disposal

This unit contains the refrigerant R404A, which at this time is 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.

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3. Technical specifications

Recirculating Cooler

Cooling
Working temperature 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

Electrical connections:
Computer interface RS232
Alarm output for external alarm signal

Circulating pump:
discharge, max. at 0 bar l/min 40 40
pressure, adjustable at 0 Liter bar 0.5 ... 3.0 0.5 ... 3.0
Feed pressure indication bar Manometer Manometer
Filling level indicator sight glass
Filling volume from ... to liters 24 … 30
Dimensions (WxLxH) cm 60x76x115
Weight kg 146 143
Ambient temperature range °C 5 ... 40
Return flow temperature °C 80 max.
Cooling water
Flow rate at 20 °C inlet temperature
IP class according to IEC 60 529 IP 21

Mains power connection 230 V/50 Hz V/ Hz 207-253 / 50 207-253 / 50

Current input at 230 V A 11 12

Mains power connection 208 - 220 V/60 Hz V/ Hz 197 - 242 / 60 197 - 242 / 60
Current input at 208V / 220 V A 13 ----

All measurements have been carried out at: rated voltage and frequency,
ambient temperature: 20 °C

°C
kW

l/min

FL2503 FLW2503

air cooled water cooled

+20 0 -10 +20 0 -10

2.5 1.5 1.2 2.7 1.7 1.0

----- 4.1

7

Recirculating Cooler

Cooling
Working temperature 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

Electrical connections:
Computer interface RS232
Alarm output for external alarm signal

Circulating pump:
discharge, max. at 0 bar l/min 60 60
pressure, adjustable at 0 Liter bar 0.5 ... 6.0 0.5 ... 6.0
Feed pressure indication bar Manometer Manometer
Filling level indicator sight glass
Filling volume from ... to liters 24 … 30
Dimensions (WxLxH) cm 60x76x115
Weight kg 158 160
Ambient temperature range °C 5 ... 40
Return flow temperature °C 80 max.
Cooling water
Flow rate at 20 °C inlet temperature
IP class according to IEC 60 529 IP 21

Mains power connection 230 V/50 Hz V/ Hz 207-253 / 50 207-253 / 50
Current input at 230 V A 14 15
Mains power connection 208 - 220 V/60 Hz V/ Hz 197 - 242 / 60 197 - 242 / 60
Current input at 208V / 220 V A 16 ------

All measurements have been carried out at: rated voltage and frequency,
ambient temperature: 20 °C

°C
kW

l/min

FL2506 FLW2506

air cooled water cooled

+20 0 -10 +20 0 -10

2.5 1.0 0.3 2.5 1.0 0.3

----- 4.1

8

Recirculating Cooler

Cooling

FL4003 FLW4003

air cooled water cooled
Working temperature 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

°C
kW

+20 0 -10 +20 0 -10

4.0 2.4 1.5 4.3 2.2 1.3
Cooling compressor 1- stage
Refrigerant R404A

Electrical connections:
Computer interface RS232
Alarm output for external alarm signal

Circulating pump:
discharge, max. at 0 bar l/min 40 40
pressure, adjustable at 0 Liter bar 0.5 ... 3.0 0.5 ... 3.0
Feed pressure indication bar Manometer Manometer
Filling level indicator sight glass
Filling volume from ... to liters 24 ... 30
Dimensions (WxLxH) cm 60x76x115
Weight kg 148 143
Ambient temperature range °C 5 ... 40
Return flow temperature °C 80 max.
Cooling water
Flow rate at 20 °C inlet temperature

l/min ----- 6.6

IP class according to IEC 60 529 IP 21

Mains power connection 400 V/3PNPE/50 Hz

V/ Hz 360-440/3PNPE/50 360-440/3PNPE/50

Current input at 230 V A 8 8
Mains power connection 230 V/3PPE/60 Hz

V/ Hz 197-242/3PPE/60 207-253/3PPE/60

Current input at 208V / 220 V A 11 ------

All measurements have been carried out at: rated voltage and frequency,
ambient temperature: 20 °C

9

Recirculating Cooler

Cooling

FL4006 FLW4006

air cooled water cooled
Working temperature 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

°C
kW

+20 0 -10 +20 0 -10

4.0 1.9 0.9 4.0 1.7 0.7
Cooling compressor 1- stage
Refrigerant R404A

Electrical connections:
Computer interface RS232
Alarm output for external alarm signal

Circulating pump:
discharge, max. at 0 bar l/min 60 60
pressure, max. at 0 liter bar 0.5 ... 6.0 0.5 ... 6.0
pressure, adjustable at 0 Liter
Feed pressure indication bar Manometer Manometer
Filling level indicator sight glass
Filling volume from ... to liters 24 ... 30
Dimensions (WxLxH) cm 60x76x115
Weight kg 157 160
Ambient temperature range °C 5 ... 40
Return flow temperature °C 80 max.
Cooling water
Flow rate at 20 °C inlet temperature

l/min ----- 6.6

IP class according to IEC 60 529 IP 21

Mains power connection 400 V/3PNPE/50 Hz

V/ Hz 360-440/3PNPE/50 360-440/3PNPE/50

Current input at 230 V A 12 13
Mains power connection 230 V/3PPE/60 Hz

V/ Hz 197-242/3PPE/60 207-253/3PPE/60

Current input at 208V / 220 V A 16 ------

All measurements have been carried out at: rated voltage and frequency,
ambient temperature: 20 °C

10

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 75 °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 2000 m - normal zero.
Ambient temperature: +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 atmosphere

Standards for interference resistance according to EN 61326-1
This unit is an ISM device classified in Group 1 (using high frequency for internal purposes) Class A
(industrial and commercial range).

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