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=== Ende d er L iste für Textm arke Inhalt1 ===

Immersion / Open Bath / Refrigerated Circulators

Operating Instructions
Important: keep original operating manual for future use.
1.951.0800-V1
 Table of contents

1 CORIO® CD product overview ............................................................. 5

2 Intended use ........................................................................................ 5
3 Description ........................................................................................... 6
4 Explanation of safety information ..................................................... 7
4.1 Explanation of other information ............................................................ 7
5 Safety instructions .............................................................................. 8
6 Operator's responsibility - safety instructions ............................... 10
6.1 Requirements for the operating personnel ............................................ 10
6.2 Operating and ambient conditions for using the unit ............................ 10
6.3 Operating the unit ................................................................................. 11
7 Control and function elements......................................................... 13
7.1 Installation of the circulator .................................................................. 16
8 Preparations for operating the device ............................................ 16
8.1 Securing the immersion circulator ......................................................... 16
8.2 Open bath tanks .................................................................................... 19
9 Closed stainless steel bath tanks ..................................................... 22
9.1 Bath fluids ............................................................................................. 23
Water bath fluid ........................................................................................................ 23
9.2 Temperature control for external connected systems ............................ 25
9.3 Tubing ................................................................................................... 26
10 Commissioning .................................................................................. 27
10.1 Excess temperature and low level safety devices .................................. 28
10.2 Filling .................................................................................................... 28
10.3 Pump settings ....................................................................................... 29
10.4 Switching on / Start - Stop .................................................................... 29
10.5 Adjusting of temperature setpoint ........................................................ 30
10.6 ATC - Absolute Temperature Calibration (1-point calibration) .............. 31
10.7 Switch Autostart on and off .................................................................. 32
11 Error messages / Possible causes of faults ...................................... 33

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 12 Operation of the CORIO CD via the USB interface ......................... 36
13 Emptying the bath tank.................................................................... 38
14 Technical data ................................................................................... 39
14.1 Technical data for circulator .................................................................. 39
14.2 Technical data for refrigeration circulation circulator ............................ 40
15 Materials of parts in contact with the bath fluid ........................... 42
15.1 Circulator .............................................................................................. 42
16 Accessories ........................................................................................ 43
16.1 For external connection ......................................................................... 43
16.2 For open baths ...................................................................................... 43
17 Maintenance, cleaning, storage....................................................... 43
17.1 Maintain the refrigeration capacity. ...................................................... 43
17.2 Cleaning ................................................................................................ 44
18 Storage .............................................................................................. 45
19 Repair service .................................................................................... 45
19.1 Warranty ............................................................................................... 45
20 Waste disposal .................................................................................. 46
20.1 Packaging.............................................................................................. 46
20.2 Unit ....................................................................................................... 46
20.3 Refrigerant ............................................................................................ 46
21 EC conformity .................................................................................... 47

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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 is designed to familiarize you with the operation
of our units and their possible applications. Please read the operating
manual carefully.

Please call us if you have any questions about the operation of the unit
or about the operating manual.
Contact:
JULABO GmbH
Eisenbahnstrasse 45
77960 Seelbach / Germany
Tel. +49 (0) 7823 / 51-0
Fax +49 (0) 07823 / 2491
info.de@julabo.com
www.julabo.com

The JULABO quality management system

The standards for the development, production and distribution of
temperature control devices for laboratory and industry use satisfy the
requirements of ISO 9001 and ISO 14001.
Registration certificate No. 01 100044846.

Unpacking and inspection

If the packaging is damaged or if you discover any concealed transport
damage when you have unpacked the devices and the accessories,
please notify the supplier in the form of a statement of damage.

The operating manual

• should be kept for future use.
• must be available to operating personnel at all times.

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CORIO® CD product overview

1 CORIO® CD product overview

Immersion Open bath Bath circulator Refrigerated

circulator circulator for temperate control circulator
for bath tanks up to with high quality bath in an internal bath or for standard
50 l. tanks made of an external temperature control
transparent plastic or application. and routine tasks.
stainless steel.

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2 Intended use
JULABO circulators are laboratory devices which are designed for the
temperature control of certain liquid media in a bath tank or with a
refrigeration unit. The bath fluids recommended by JULABO must be
used as tempering media.
Units with pump connections allow the tempering tasks to be carried out
in an external temperature control system.
JULABO circulators are not designed for the direct temperature control of
foods, semi-luxury foods and tobacco, or pharmaceutical and medical
products.
• Direct temperature control means unprotected contact between the
object and the tempering medium (bath fluid).
• The devices are not suitable for use in potentially explosive
environments.
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3 Description
• These circulators are operated via the splash-proof keypad. The
microprocessor technology allows the setpoint to be set, displayed
and saved using the temperature display LED.
• The PID temperature control automatically adjusts the heat supply to
the requirements in the bath.
• ATC - Absolute Temperature Calibration (1-point calibration)
• The pump function can be switched from internal to external
circulation by a simple switchover button.
• Safety equipment to IEC 61010-2-010:
- The excessive temperature protector is a safety device which
is independent of the control circuit whose value is set using
a tool (screwdriver).
- A float switch acts as the low level safety device. If these
safety devices trip, the heater and circulating pump are
completely shut down.
• Interfaces:
- CAN bus to communicate with the refrigeration machine
- USB connector to act as host to update and read data. USB device
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for remote control.

It is important to follow these safety instructions to prevent personal

injury and property damage. These instructions apply in addition to the
safety instructions at your workstation.
It is essential that you read the user information before
starting the device.
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6
Explanation of safety information

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4 Explanation of safety information

The operating manual contains warnings to increase safety when using
the unit. The general warning sign, consisting of an equilateral triangle
surrounding an exclamation sign and reproduced in various signal
colors, is preceded by the signal words.
"Warning of a dangerous situation".
The significance of the danger is classified with a signal word. Read the
instructions carefully and follow them.

This signal word designates a danger with a high level of risk which, if
it not prevented, will result in death or serious injury.

This signal word designates a danger with a medium level of risk

which, if it not prevented, may result in death or serious injury.

This signal word designates a danger with a low level of risk which, if it
not prevented, may result in minor or moderate injury.

Designates a possibly harmful situation. If it is not prevented, the

system or something near it may be damaged.

4.1 Explanation of other information

TIP
Your attention is drawn to something special by this.
Designates user tips and other useful information.
Dangers at second glance
Designates states which only occur after the start of an action and
could have been prevented if the warning had been heeded.
Informative note
 Provides additional information.

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7
5 Safety instructions
It is important to follow these safety instructions to prevent personal
injury and property damage. These instructions apply in addition to
standard safety practices for working places.
• It is essential that you read the user information before starting the
unit.
• Place the unit on a flat surface and a mat made of non-flammable
material.
• Do not start the unit if it is damaged or leaking.
• Only connect the unit to a power socket with ground contact (PE –
protective earth)!
• The power supply plug serves as safe disconnecting device from the
power supply network and must be freely accessible at all times.
• Do not start the unit if it has a damaged power cable.
• Refer to the safety sticker.
• Never use the unit without bath fluid.
• Check the filling level of the bath fluid at regular intervals. The pump
and heater must always be completely covered with bath fluid.
• Set the excess temperature protector to at least 25 °C below the
flash point of the bath fluid.
• Consider the restricted working temperature range if you are using
plastic bath tanks.
• Monitor the heat expansion of the bath oils as the bath temperature
rises.
• Prevent water getting into hot bath oils.
• Use suitable tubing.
• Secure the tubing connections to prevent them sliding off.
• Do not bend the bath fluid tubing.
• Check the hoses at regular intervals for signs of material fatigue (for
example cracking).
• Do not drain the bath fluid when it is hot.
• Check the temperature of the bath fluid before draining it, for
example by switching on the unit briefly.
• Switch off the unit and pull the plug before moving the unit or
carrying out service or repair work.
• Have all service and repair work carried out by authorized specialists
only.
• Switch off the unit and disconnect it from the power supply before
cleaning it.

8
Safety instructions

• Empty the unit completely before transporting it.

• Transport the unit carefully. The interior of the unit can also be
damaged by impacts or if it is dropped.
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9
6 Operator's responsibility - safety instructions
Products manufactured by JULABO GmbH ensure safe operation when
installed, operated and according to common safety regulations. This
section explains the potential dangers which may occur when operating
the unit and specifies the most important safety measures to prevent
these dangers as far as possible.

6.1 Requirements for the operating personnel

The operator is responsible for the qualifications of the personnel
operating the unit. Ensure that the personnel who operate the unit are
trained in the relevant work application by a trained person.
The operative must receive regular training about the dangers involved
with their work and about action to prevent such dangers.
Ensure that everybody involved with the operation, maintenance and
installation have read and understood the safety information and the
operating manual. The unit may only be configured, installed,
maintained and repaired by trained personnel.
If hazardous substances or substances which may become hazardous are
used, the unit may only be used by a person who is completely familiar
with these substances and the unit. This person must be able to assess
the possible dangers in full.

6.2 Operating and ambient conditions for using the unit

• Avoid impacts on the housing, vibrations, damage to the operative
keypad (keys and display) and heavy soiling.
• Ensure that the product is checked at regular intervals suitable for its
frequency of use to ensure that it is in perfect condition.
• Check the proper condition of the mandatory warning, prohibition,
and safety labels at least every 2 years.
• Ensure that the mains supply has a low impedance to prevent
influencing of other units powered in the same mains.
• The unit is designed for operation in a controlled electromagnetic
environment. This means that in an environment of this nature,
transmission equipment such as mobile phones should not be used
in the immediate vicinity.
• Other units with components which are susceptible to magnetic
fields may be influenced by magnetic radiation. We recommend to
maintain a minimum distance of 1 m.
• Permissible ambient temperature: max. 40 °C, min. 5 °C.
• The relative humidity should not exceed 50% (40°C).
• Do not store in an aggressive atmosphere. Protect from dirt.
• Protect from direct sunlight.

10
Operator's responsibility - safety instructions

6.3 Operating the unit

The bath may not be filled with flammable materials. Fire hazard!
Chemical dangers may occur, depending on the bath medium.
Refer to all warnings on the substances used (bath fluids) and in the
relevant instructions (safety data sheets).
The formation of explosive mixtures is possible if the ventilation is
inadequate.
Only use the units in well ventilated areas. The unit is not suitable for
use in potentially explosive environments.
Special substance specifications (bath fluids) must be observed for
correct operation. Caustic or corrosive bath fluids must not be used.
When using hazardous substances or substances which may be
hazardous, the operator must apply the enclosed safety symbols (1; 2a;
2b) on the control side panel where they are clearly visible:

Warning of a danger zone. Attention!

Observe documentation (Operating manual, safety data sheet).
1
It is essential that you read the user information prior to operation.
Area of validity: EU
2a
It is essential that you read the user information prior to operation.
Area of validity: USA, NAFTA
2b

11
 As a result of the wide range of operating temperatures, special care and
caution is essential.
There are thermal dangers: Burns, scalds, hot steam, hot parts and
surfaces which may be touched.

Warning about hot surfaces.

(The label is applied by JULABO)

If external units are connected

Refer to the instructions in the manuals for the external units which you
connect to the JULABO unit, particularly the safety instructions.
The connection assignment of the plugs and the technical data for the
products must be observed at all times.
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12
Control and function elements

7 Control and function elements

Front Rear

Position Designation

1 Main switch

2 Four-figure temperature display LED, menu display

3 Control indicator - alarm

4 Editi keys
Temperature setpoint increase or decrease
Press the key briefly for step-by-step changes.
Press and hold the key for fast change of setpoint.
5 OK key 1. Switch the device on/off.
2. Store value / parameter.
6 Pump switchover,
Delivery

external…….internal
7 Adjustable excess temperature safety device

8 Control indicator - cooling

9 Control indicator - heating

10 USB host interface (type A)

13
 11 Electrical connection: Integrated connector plug for voltage supply (mains cable in
accessories)
12 Fuses: Miniature circuit-breaker

13 CAN plug for connecting to the refrigeration machine.

14 USB device interface (type B) for data transfer to the PC, for example for control tasks
using the EasyTEMP software.
15 Pump connection: Return, IN M16x1, external

16 Pump connection: Supply, OUT M16x1, external

Refrigerated Circulators

17 Recessed handle (front, rear)

18 CAN connection cable for refrigeration machine circulator

19 CAN plug for connecting to the circulator.

20 Fuses: Miniature circuit-breakers, for refrigeration machine. Resettable fuses for 600F
refrigeration units (115 V, 100 V).

14
Control and function elements

21 Connection cable: Voltage supply, refrigeration machine  circulator

22 Electrical connection: Integrated connector to supply power to the circulator

23 Electrical connection: Integrated connector to supply power to the refrigeration

circulator
24 Drain cock and drain port (behind ventilation grille)

25 Caps (connectors for the cooling coil)

Accessories, included in the supply

2x Main cable for voltage supply for the
refrigeration machine (23) and circulator (11)
(use one only for refrigeration circulator)

1x Connection cable: Refrigeration machine (22)  Circulator (11)

1x CAN connection cable (18, for refrigeration machine circulator)

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15
7.1 Installation of the circulator

Danger of scalding due to leaks from the baths

The JULABO plastic baths are not solvent-resistant. JUALBO plastic
bath tanks are for water at a working temperature range from +20°C
to +100°C.
Do not contaminate the bath fluid with solvents.
Things to keep in mind during the installation process:
This work may only be carried out by trained personnel.
• The installation site should be a sufficiently large room to ensure
that it does not become too hot due to the waste heat.
• The surface for the device should be flat and made of non-
flammable material.
• A specific room size is prescribed for refrigerated circulators.
• Observe the safety sticker - do not remove!
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8 Preparations for operating the device

8.1 Securing the immersion circulator

Danger of electric shock.

Carefully secure the immersion circulator on the bath tank. Poorly
installed circulators can fall into the bath tank.
Have the unit checked by a service technician prior to re-use.
The heater must not be in contact with the wall or the bottom of the
bath tank. Minimum distance 15 mm.
Pull the plug to disconnect the unit from the power supply. Only then
take the immersion circulator out of the bath tank.
A range of accessories is available for various applications:
• Bath clamp (for securing the circulator to baths)
• Bracket (for securing the circulator to JULABO refrigeration
machines)
• Pump set (for connecting external applications)
• Cooling coil (for operating close to ambient temperature)
• Stand holder with rod (for securing to a laboratory stand)

16
Preparations for operating the device

Bath attachment clamp, order No. 9970420

• Pay special attention to the circulator's immersion depth (see
Technical data) when selecting the bath.
• Place the bath on a flat surface on a mat made of non-flammable
material.
• Secure the bath attachment clamp to the bath tank. The wall
thickness may be up to 30 mm.
• Attach the circulator with a “click” to the bath attachment clamp.

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Stand attachment, order No. 9970022

For use with glass tanks a stand attachment with rod is available as an
optional accessory.
The circulator must be mounted vertically and secured against rotation.
If necessary, secure the nuts of the rod also.

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Bracket, order No. 9970177

Installation on the circulator

• Slide the bracket over the heater and pump on to the circulator
• Push the end of the tubing on the "OUT" side on to the outlet
port on the pump.
• Push the end of the tubing on the "IN" side into the holding
device on the pump.
• Secure the bracket housing to the base of the circulator using the
four screws.
Connect an external system
• Remove the union nuts and sealing plates from the pump
connectors.
• The tubing connections can be used for hoses with M16x1
connections in this state.

17
 Or:
• Secure barbed fittings to the union nuts.
• Connect tubing and secure them with tube clamps to prevent
them sliding off.
• Connect the tubing for the supply and return to the pump
connectors and the external consumer and secure them with tube
clamps.
• Switch the pump function to external circulation.

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Pump set, order No. 9970140

Installation on the circulator

• Push the end of the tubing on the "OUT" side on to the port on
the pump.
• Push the end of the tubing on the "IN" side on to the holding
device on the pump.
• Secure the pump housing to the base of the circulator using the
two screws.
• Attach the circulator to the bath clamp.
The total immersion depth will be reduced due to the pump set.

Connect an external system (also applies to bracket)

• Remove the union nuts and sealing plates from the pump
connectors.
• The hose connectors can be used for tubing with M16x1
connections in this state.
Or:
• Secure barbed fittings to the union nuts.
• Connect tubing and secure them with tube clamps to prevent
them sliding off.
• Connect the tubing for the supply and return to the pump
connectors and the external consumer and secure them with
tube clamps.
• Switch the pump function to external circulation.
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18
Preparations for operating the device

Cooling coil, order No. 9970100

A cooling coil is required for working at around ambient temperature
(20 °C) A cooling water flow rate of 45 ml/min is generally sufficient to
compensate for the intrinsic temperature.
The cooling water temperature should be at least 5 °C lower than the
working temperature.
Install the cooling coil on the pump set
• Remove the caps from the pump set.
• Insert the ends of the cooling coil through the fastening boreholes
and secure them with the washers and hex nuts.
• Install the connection ports to the cooling coil.
• Slide the cooling water hoses over the connection ports and
prevent slipping.
Bracket with cooling coil, order No. 9970176
Install the cooling coil on the bracket
• Remove the caps from the bracket.
• Slide the ends of the cooling coil through the fastening boreholes.
• Secure them with the washers and hex nuts.
• Install the connection ports to the cooling coil.
• Slide the cooling water tubing over the connection ports and
prevent slipping.

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8.2 Open bath tanks

Open JULABO baths can be combined with JULABO circulators from the
CORIO product series. When combined with these circulators they are
designed for controlling the temperature of liquid media recommended
by JULABO.
The circulators are mounted on the baths using bath attachment clamps,
for example.

19
 Technical details for transparent bath tanks

Type BT5 BT9 BT19 BT27

Order numbers 9901305 9901309 9901319 9901327
Temperature range °C +20 ... +100

Approx. weight kg 1.2 1.5 2.3 2.7

Dimensions (WxDxH*) cm 23 x 38 x 38 32 x 38 x 38 38 x 58 x 38 38 x 58 x 43

Useful bath opening cm 15 x 15 x 15 23 x 15 x 15 30 x 35 x 15 30 x 35 x 20

(WxLxD)
Filling volume, l 3.5 …5.0 6.0 … 9.0 14.0 … 19.0 20.0 … 27.0
Min...Max
Material Parts in contact with the bath fluid: Polycarbonate
* With circulators

Technical details for stainless steel bath tanks

Type B5 B13 B17 B19

Order numbers 9903405 9903413 9903417 9903419
Temperature range °C +20 ... +150
Approx. weight kg 2.6 5.2 6.1 6.9
Dimensions (WxDxH*) cm 23x38x41 38x40x42 38x40x47 38x58x42
Useful bath opening
(WxLxD) cm 15x15x15 30x18x15 30x18x20 30x35x15
Filling volume, l
Min...Max 3.5 ... 5.0 9.0 ... 13.0 13.0 ... 17.0 14.0 … 19.0
Material Parts in contact with the bath fluid: Stainless steel

20
Preparations for operating the device

Type B27 B33 B39

Order numbers 9903427 9903433 9903439
Temperature range °C +20 ... +150
Approx. weight kg 8.0 17.6 14.6
Dimensions (WxDxH*) cm 38x58x47 91x36x43 54x34x57
Useful bath opening
(WxLxD) cm 30x35x20 66x32x15 33x30x30
Filling volume, l
Min...Max 19.5 … 22.0 26.0 … 30.0 35.0 …41.0
Material Parts in contact with the bath fluid: Stainless steel
* With circulators
Bath covers
Order No. Designation For Baths
9970296 Flat stainless steel bath cover B5
9970290 Flat stainless steel bath cover B13, B17
9970291 Flat stainless steel bath cover B19, B27
9970292 Flat stainless steel bath cover B33
9970293 Flat stainless steel bath cover B39
9970254 Lift-up stainless steel gable cover B19, B27, BT19, BT27
9970257 Lift-up stainless steel gable cover B33

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9 Closed stainless steel bath tanks
Intended use
JULABO BC4, BC6, BC12 and BC26 closed stainless steel baths can be
combined with JULABO circulators from the CORIO product series. When
combined with these circulators they are designed for controlling the
temperature of JULABO recommend liquid media.
Technical details for the sealed baths
The circulators feature the bracket which is secured to the
baths.

Type BC4 BC6 BC12 BC26

Order No. 9905504 9905506 9905512 9905526
Temperature range °C +20…+150
Approx. weight kg 5.2 6.4 8.2 15.0
Dimensions (WxDxH*) cm 23x41x42 24x44x47 33x49x47 39x62x48
Useful bath opening
(WxLxD), inner cm 13x15x15 13x15x20 22x15x20 22x30x20
Filling volume
Min. … Max. l 3.0…4.5 4.5…6.0 8.5 … 12.0 19.0 …26.0
Materials for parts in Bath and drain cock: 1.4301 / 304H
contact with the Bath/Bath cover seal: FKM Viton®
medium
O-ring on drain cock: FKM Viton®

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* / With circulator

22
Closed stainless steel bath tanks

9.1 Bath fluids

Danger of burns and property damage if unsuitable bath

fluid is used.
• Use only thermal oils which are recommended by JULABO. The
viscosity of the oil is tailored to the pump capacity.
• Refer to the safety data sheet of the bath fluid, particularly its
flash point.
• Set the excess temperature protector correctly.
• Always store bath fluid so that it cannot harm the environment.
There is a selection of recommended bath fluids on the JULABO
homepage at www.julabo.com. Do not exceed the maximum viscosity of
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50 mm2/s when you select your product.

Water bath fluid

If you use water as the bath fluid

Recommended water mixture:
70 % soft/decalcified water and 30 % tap water for a temperature
range from 5 °C to 80 °C.
The parts of the bath which come into contact with the bath fluid
may be damaged and cause the failure of the device.
The water quality depends on the local conditions.
• Hard water is not suitable for temperature control tasks due to
its high lime content and will produce lime deposits in the bath.
• Ferrous water can cause corrosion, even on stainless steel.
• Chloric water can cause pitting corrosion.
• Distilled and deionized water is not suitable. Their specific
properties cause corrosion in the bath, even on stainless steel.
 Check the quality of the water you use at regular intervals.
 Evaporation and constant refilling may produce a concentration
of harmful substances in the bath.
You should therefore check the quality of the water in the bath
at regular intervals.
 Replace the water in the bath in full at regular intervals.
Water bath protection products
The water bath protection product "Aqua-Stabil" is recommended to
combat algae, bacteria and fungus formation.
Order No. Designation
8 940 006 6x 100 ml bottles
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8 940 012 12x 100 ml bottles

23
 Unsuitable bath fluids.
JULABO cannot accept any liability for damage caused by the selection
of an unsuitable bath fluid.
Unsuitable products include bath fluids which
• are highly viscous (much higher than recommended at the
relevant working temperature).
• tend to crack.
• have a toxic, caustic or corrosive effect.

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Properties of indirectly temperature-controlled fluids and

substances
The intended use of the units includes the indirect temperature control
of fluids.
We do not know which substances these are.
Many substances are:
• inflammable, flammable or explosive
• harmful
• polluting
In other words: dangerous
The user bears sole responsibility for handling these substances.
Use personal protective equipment.
The following questions should help to identify possible dangers and
minimize risk.
• Are hazardous vapors or gases produced when heated?
Does operation of the bath has to be conducted in a fume hood?
• What should you do if a dangerous substance has been spilled on
or in the device?
Obtain information on the substance before starting work and
define a decontamination method.
• Are all hoses and electrical cables securely connected and routed?
Keywords: Sharp edges, hot surfaces during operation, moving
machine parts, etc.
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24
Closed stainless steel bath tanks

9.2 Temperature control for external connected systems

Danger from the incorrect use of external connected

systems.
Unsuitable materials may cause the failure of the system.
Check the externally connected systems for the
following:
• Compression strength.
• Corrosion resistance.
• Check the materials used for parts in contact with the medium.
The circulator is designed for the temperature control of external
connected systems (temperature control system).
Connect an external system
Remove the union nuts and sealing plates from the pump connectors.
The tube connectors can be used for tubing with M16x1 (internal)
connections in this state.
Second method
Secure barbed fittings to the union nuts. Connect tubing and secure
them with tube clamps to prevent them sliding off.
Connect the tubing for the supply and return to the pump connectors
and the external consumer and secure them with tube clamps.
Switch the pump function to external circulation.

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25
9.3 Tubing

Danger of injury from defective tubing.

The bath fluid tubing is a potential source of danger at high working
temperatures. Large volumes of hot bath fluids can be pumped out of
damaged tubing in a short period of time.
Possible consequences:
• Skin burns
• Breathing problems due to the hot atmosphere
Danger from unsealed pump connections.
• If the pump connections are not sealed, bath fluid may be pumped
out without any control.
• Set the lever on the pump to internal circulation.
• Unused pump connections must always be sealed with sealing
screws.
Danger from the incorrect use of tubing.
• The tubing must be suitable for the pressure and temperature range
which results from operation and for the bath fluid (for example
silicon oil must not be used with silicon tubings).
• Secure the tubing connections to prevent them sliding off. Use tube
clamps.
• Do not kink the hoses. This will reduce throughput and may cause
the maximum pressure in the system to be exceeded (glass
reactor). The tube length should therefore be kept at a reasonable
level.
• Prepare a maintenance plan.
Check tubing at regular intervals, at least once per year, for signs
of material fatigue (for example cracking)
The tubing must be replaced at regular intervals if they are in
constant use.

We recommend that you select suitable tubing on the JULABO

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homepage.

26
Commissioning

10 Commissioning

Danger from mains voltage.

Risk of injury from electric power.
• Compare the mains voltage and frequency with the details on the
model plate.
• The device may only be connected to power outlets with a ground
contact (PE – protective earth).
• The mains plug serves as a safe disconnecting device from the
power supply network and must be freely accessible at all times.
• Do not start the device if it has a damaged mains cable.
• Check the mains cable regularly for signs of damage.
• We disclaim all liability for damage caused by incorrect line
voltages!
Commissioning the circulator with a refrigeration machine
Connect the circulator and refrigeration machine using the mains lead.
Connect them to the voltage supply using the fitted plug on the
refrigeration machine and the mains lead. Connect the CAN jacks on
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both devices with the CAN connection cable to transfer data.

What should be observed when operating the JULABO

temperature control unit?
• Unit parts may develop high surface temperatures. A hot surface
means it has a temperature of 140 °F / 60 °C or more.
• Let the device cool down to an uncritical safe temperature.
• Use safety gloves

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27
10.1 Excess temperature and low level safety devices
The safety devices are not affected by the control circuit. When they trip
all actors are permanently shut down.
The alarm is displayed optically and acoustics with a continuous signal
tone and the reason for the alarm is shown on the display as a number.
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Danger from damaged safety devices

Possible serious consequences for personnel and working areas.
Check the safety devices at least twice per year.

Excess temperature protector, IEC 61010-2-010

Turn the adjustable excess temperature protector to the cut-out point
(actual temperature) using a screwdriver. The actors will be shut down
on all poles, the circulator will show error message E 14, the "Alarm"
+ + control display will be lit and a continuous signal tone will sound.
E 14
Low level safety device, IEC 61010-2-010
The float switch in this device must be moved manually in the bath to
test the function, for example using a screwdriver.
Push down the float until it reaches the mechanical stop.
The actors will be shut down on all poles, the circulator will show error
message E 01, the "Alarm" control display will be lit and a continuous
signal tone will sound.
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10.2 Filling

Basic dangers.
The volume of oil used as bath fluid changes with the temperature.
Starting from the volume when the bath is filled (room temperature) it
may increase or decrease during operation.
The bath temperature rises - hot bath fluid can overflow.
The bath temperature falls - the low level alarm will stop the tempering
process.
Monitor the level until it reaches working temperature.

28
Commissioning

Filling process
• Ensure that the drain cock is closed. Turn the knurled screw.
• Carefully insert bath fluid - never allow bath fluid to get inside the
circulator.
• Do not exceed the maximum bath capacity (see Technical Data).
• 1 - The bath temperature rises - hot bath fluid can overflow.
• 2 - The bath temperature falls - the low level alarm will stop the
tempering process.
• Monitor the level until it reaches working temperature.
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10.3 Pump settings

To meet all the requirements for internal and/or external temperature
control tasks, the direction of the pump flow is continuously
adjustable.
For this purpose the lever below the head of the circulator can be
adjusted from:

1.) Max. external pump flow

to...

2.) Max. internal pump flow.

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10.4 Switching on / Start - Stop

When pressing the keys, it is advisable to hold the

circulator head with one hand.

Switching on
• The device is switched on by pressing the power switch (1).

 The unit performs a self-test. All the segments of the four digit LED
temperature display will illuminate.

The "OFF" signal then indicates that the unit is ready to operate.
OFF
29
 Start
• Press OK for approx. 4 seconds.
28.3 The current bath temperature will be shown on LED temperature
display.
Stop
• Press OK for approx. 4 seconds.
• Switch off the unit with the circulator's mains power switch.

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10.5 Adjusting of temperature setpoint

Factory setting: 10 °C The temperature can be set in the start/stop condition.

 The set value is saved so that it will be retained even after a power
outage.

1. Press the edit key or briefly to switch from displaying

the actual value to the desired value. The decimal point will
flash.
Example:
2. Change the value:
Press the key to set a higher value.
Press the key to set a lower value.
Press the key briefly for single steps, press and hold the key
to adjust the values quickly.
3. Save the set value as the desired value by pressing the
key.
4. The new desired value will flash three times.

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30
Commissioning

10.6 ATC - Absolute Temperature Calibration (1-point calibration)

1-point calibration:
The temperature sensor can be calibrated at any value in the working
temperature range.
Place a calibrated thermometer (resolution: 0.01 °C) in the center of the
bath to measure the actual bath temperature.
1. Switch on the circulator at its mains switch
2. Set the required calibration value as described in "Adjusting
temperature setpoint" (example: 50.0 °C).
3. Start the unit:
50.0 Press the key.
4. The bath will be heated to 50.0 °C.
When the setpoint is reached, allow the bath temperature to
settle for approx. 3 minutes.
5. Start the calibration:
Press the “Service” and the key together until the comma
in the display starts to flash.

50. 0 6. Read the bath temperature value on the calibrated

thermometer and round it up or down and set it.
(Example: 48.87 °C to 48.9 °C)
48.9 7. Press the key to confirm.
CAL 8. The circulator will confirm the process by displaying "CAL".

If the value is outside a window of ±5°C, its entry will be ignored!

Error message: Err = Error
- Err
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31
10.7 Switch Autostart on and off
The AUTOSTART function allows the device to be started as soon as the
main switch is pressure, which in turn allows you to use a timer.

Uncontrolled device start

If circulators are started using "AUTOSTART", ensure that even if it is
started accidentally, for example after a power outage, it does not pose
a danger to personnel or equipment.
• Ensure that the circulator's safety equipment is set correctly.

1. Press and hold the key and

+ 2. switch on the circulator using the main switch.

The switchover process is shown briefly on the temperature display LED.

AOn Autostart on

AOFF Autostart off

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32
Error messages / Possible causes of faults

11 Error messages / Possible causes of faults

The following faults which trigger alarms result in the units's heater
+ and circulating pump being shut down permanently.

The alarm indicator lights up and a continuous signal tone will

sound. The reason for the alarm or warning will be shown on the LED
temperature display in coded form.
Warnings are displayed alternately with the actual value on the
display.
The signal tone can be muted by pressing the OK key.

The device is being operated with no or too little bath fluid or the
E 01 level is below the minimum level. Top up the bath fluid.
A hose has burst (bath fluid level too low because it has been
pumped out). Replace the hose and top up the bath fluid.
The cable for the working temperature sensor has been interrupted
E 05 or short-circuited.
Defect of the working or excess temperature sensor.
E 06 The working and excess temperature sensors report a temperature
difference of more than 20 K.
The cut-out value of the excessive temperature protector is below the
E 14 defined working temperature .
Set the safety temperature to a higher value.
The cable for the overtemperature safety sensor has been broken or
E 33 short-circuited.
Internal error. Contact JULABO Service Department.
E 60
Connection error between Corio CD and refrigeration unit
E 61 The data communication between the Corio CD and the refrigeration
unit is permanently monitored. If communication cannot be
established (e.g. by a defective connection cable), the error message
„E 61“ is generated. By pressing the „OK“ key, the alarm is
acknowledged. The Corio CD continues operating purely as heating
circulator until the next interruption of the power supply (power-off).
When the fault has been repaired, the Corio CD controls the
refrigeration unit according to the settings in the menu (Off, Auto,
On) after the next power-on.
Internal error. Contact JULABO Service Department.
E 63
33
 Internal error. Contact JULABO Service Department.
E 70
Internal error. Contact JULABO Service Department.
E 72
Warning: Internal error. Contact JULABO Service Department.
E 80
Warning: Update error (incorrect hex file). Contact JULABO Service
E 82 Department.
Warning: Excessive power consumption via USB interface (<300 mA).
E 83
The self-locking alarm is still active. Switch off the device at the main
E108 switch. Wait for approx. 4 seconds and then switch it on again.

E116
The internal AD converter is defective.
E118
Alarms and warnings for refrigeration machines 200F,
201F, 300F
Maximum compressor current exceeded.
E431
Warning: No compressor current detected.
E1431
Alarms and warnings for refrigeration machine 600F

Temperature sensor evaporator outlet defective (short circuit).

E401
Temperature sensor evaporator outlet defective (break).
E402
Evaporation pressure sensor defective (short circuit).
E413
Evaporation pressure sensor defective (break).
E414
Condensation pressure sensor defective (short circuit).
E417
Condensation pressure sensor defective (break).
E418
34
Error messages / Possible causes of faults

Error in refrigeration system.

E425
Error in refrigeration system.
E426
Error in refrigeration system.
E427
Warning: Error in refrigeration system
E1427
Maximum compressor current exceeded.
E431
Error in refrigeration system.
E432
Error in refrigeration system.
E433
Warning: No compressor current detected.
E1431
To cancel the alarm state
1. Switch off the device at the main switch.
2. Eliminate the cause of the alarm.
3. Eliminate the cause of the alarm or wait for approx. 4
seconds, depending on error type.
4. Switch on the device again at the mains power switch.
5. If the error occurs again, a remote diagnostic is be made.

Faults which are not displayed:

Circulating pump motor overload protection.
The circulating pump motor is protect from overloads. After a cooling
phase the motor will restart automatically.
If necessary, the unit should be inspected by a JULABO service
technician.
JULABO Technical Service
Phone: +49 (0) 07823 / 5166
Fax: +49 (0) 07823 / 5199
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Email: service.de@julabo.com

35
12 Operation of the CORIO CD via the USB interface
• PC and CORIO CD are switched on.
• Connect the CORIO CD and PC with the USB cable.
The CORIO CD reports to the PC after the installation of the driver with
the identifier "STMicroelectronics virtual COM port" COM port in Device
Manager
For comfortable operation, you can use the JULABO software EasyEcho
or EasyTemp.
There are also interface commands to the direct query available:

Input Function
STATUS current operating status
VERSION device name + voltage variant + software version
IN_SP_00 Setpoint query
IN_PV_00 current value query
IN_PV_01 Variable query
IN_PV_03 Safety sensor query
IN_PV_04 Safety potentiometer query
IN_MODE_05 Start/Stopp query

OUT_SP_00 Setpoint input

OUT_SP_01 Send setpoint
OUT_MODE_05 Start/Stop device 1/0

Remote operation
The device can be controlled remotely via the USB or CAN interfaces. To
do this, connect the unit to a PC via the interfaces.
When remote operation is active (press and hold down and
simultaneously for approximately 3 seconds) the display alternates
between the current bath temperature or “OFF” and the message
“-r-”. Switching remote operation on or off is confirmed with a short
“r On” or “r OFF”.

36
Operation of the CORIO CD via the USB interface

Data logging
Certain characteristic parameters can be read. To do this:
1. Attach the USB flash drive.
2. Start data logging using the and key combination.
Activation is indicated with LO61.
3. Use the same key combination to stop data logging.
Deactivation is indicated with LO60.

Cold Mode:
You can set the refrigeration unit operating mode. Here you can switch
between automatic operation, refrigeration unit always on, and
refrigeration always off.
To do this, press the button while switching on the power switch.
The mode changes one position each time the power switch is switched
on and the button pressed. The display shows:
- „COn“ →
Refrigeration unit always on,
where the required cooling capacity to maintain the bath temperature is
available.
- „AUtO“ →
Automatic operation
where cooling capacity is available if needed
- „COFF“ →
refrigeration unit always off,
where no cooling capacity is required.

Reading black box data:

The black box is integrated into the controller and stores all relevant
data from the last 30 minutes. In addition, persisting alarms and
warnings are logged to an alarm memory. This data can be read. The
program required to do this is available to download for free
(www.julabo.com/de/downloads/software).
Installation is easy and is carried out step by step. Please follow the
instructions.
To do this, insert the USB flash drive into the thermostat interface and
press the “SERVICE button” + . The display then shows
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“-BB-”.

37
13 Emptying the bath tank

Danger of scalds from hot bath fluid or hot drain tap.

Please note the following when draining the bath fluid:
• Hot bath fluid:
Do not drain the bath fluid when it is hot.
• Environmental Hazard:
Refer to all regulations for disposing of bath fluids.
Emptying
• Switch off the unit and pull the plug or disconnect the connection
to the power supply on all poles.
For baths without a drain tap, remove the circulator from the bath
tank.
• Small bath tanks do not have a drain tap and can be carried for
draining. The temperature of the bath fluid should not exceed
50°C.
Enclosed baths and refrigeration machines
• Connect a suitable hose to the drain port (∅ 12 mm external).
• Route the hose to a vessel or drain.
• Open the drain tap with the knurled screw.

 To reduce the weight, the bath can be partly emptied using a hose
pump (transfer pump).
 Do not empty the bath in temperatures of ≤ 0°C since the drain
tap may freeze.
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38
Technical data

14 Technical data
14.1 Technical data for circulator

Circulator CORIO CD
Working temperature range °C 20 ... 150

Temperature stability °C ±0.03

Temperature setting Digital

Temperature display LED

Resolution °C 0.1

ATC - Absolute Temperature Calibration 1-point

Temperature control PID1

Heating capacity (at 230 V) kW 2.0

Heating capacity (at 115 V) kW 1.0

Heating capacity (at 100 V) kW 0.8

Circulating pump:
Delivery rate at 0 bar L/min 15.0

Pressure at 0 liters bar 0.35

Max. viscosity cSt 50

Dimensions (WxDxH) without bracket cm 13.2x16.0x18.4

Useful immersion depth cm 16.6

Weight kg 2.6

Ambient temperature range °C 5 ... 40

Operating temperature range °C -40 … 150

Mains power connection 230 V / 50 Hz V / Hz 230 ±10 % / 50

Power consumption (230 V) A 9

For CH and GB model (at 230 V) A 9

Mains power connection 230 V / 60 Hz V / Hz 230 ±10 % / 60

Power consumption (at 230 V) A 9

Mains power connection 115 V / 60 Hz V / Hz 115 ±10 % / 60

Power consumption (at 115 V) A 10

Mains power connection 100 V / 60 Hz V / Hz 100 ±10 % / 60

Power consumption (at 100 V) A 9

Classification to DIN 12876-1 III (FL)

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39
14.2 Technical data for refrigeration circulation circulator

CORIO refrigeration circulator 200F 201F

Working temperature range °C -30 ... 150 -20 ... 150

Temperature stability °C ±0.03

Temperature display LED

Setting/Display resolution °C 0.1

ATC – Absolute Temperature 1-point

Temperature control PID1

Heating capacity, at 230 V W 2.0

at 115 V 1.0
at 100 V 0.8

Refrigeration capacity °C +20 0 -20 +20 0 -20

(Medium ethanol) kW 0.22 0.17 0.06 0.20 0.16 0.06

Refrigerant R134a

Overall dimensions (HxDxH) cm 23 x39 x 65 44 x 41 x 44

Useful bath opening (WxD) cm 13 x 15 13 x 15

Bath depth cm 15 15

Filling volume, from...to Liters 3.0 ... 4.0 3.0 ... 4.0

Weight, with circulator kg 25.0 25.0

Ambient temperature range °C 5 ... 40

Operating temperature range °C -50…200

Mains connection 230 V / 50 / 60 Hz V / Hz 230 -10%; +5.5% /50 /

230 – 18.7%; +10% /60
Power consumption (at 230 V) A 16

For CH model (at 230 V) A 10

For GB model (at 230 V) A 13

Mains connection 230 V / 60 Hz V / Hz 230 ±10% / 60

Power consumption (at 230 V) A 16

Mains connection 115 V / 60 Hz V / Hz 115 ±10% / 60

Power consumption (at 115 V) A 12

Mains connection 100 V / 50 / 60 Hz V / Hz 100 -10 %; +5 % /50

100 ± 10 % / 60
Power consumption (at 100 V) A 15

40
Technical data

Refrigeration circulator 300F 600F

Working temperature range °C -25 ... 150 -30 ... 150

Temperature stability °C ±0.03

Temperature display LED

Resolution °C 0.1

ATC – Absolute Temp.Calibration 1-point

Temperature control PID1

Heating capacity, at 230 V W 2.0

at 115 V 1.0
at 100 V 0.75

Refrigeration capacity °C +20 0 -20 +20 0 -20

(Medium ethanol) kW 0.31 0.28 0.11 0.60 0.53 0.22

Refrigerant R134a R404A

Dimensions (WxDxH) cm 24 x 42 x 66 33 x 47 x 69

Useful bath opening (WxD) cm 13x15 22x15

Bath depth cm 15 15

Filling volume, from...to Liters 3.0 ... 4.0 5.1 ... 7.5

Weight, with circulator kg 28.0 36.0

Ambient temperature range °C 5 ... 40 5 ... 40

Operating temperature range °C -50…200

Mains connection 230 V / 50 Hz V / Hz 230 ±10 % / 50 230 ±10 % / 50

Power consumption (at 230 V) A 16 16

For CH model (at 230 V) A 10 10

For GB model (at 230 V) A 13 13

Mains connection 230 V / 60 Hz V / Hz 230 ±10 % / 60 230 ±10 % / 60

Power consumption (at 230 V) A 16 16

Mains connection 115 V / 60 Hz V / Hz 115 ±10% / 60 115 ±10% / 60

Power consumption (at 115 V) A 12 12

Mains connection 100 V / 50-60 Hz V / Hz 100 ±10% /50-60 100 -10%; +5%/50
100 ±10% / 60
Power consumption (at 100 V) A 15 15

41
 All data refer to rated voltage and rated frequency
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Ambient temperature 20 °C Subject to technical changes.
Safety precautions to IEC 61010-2-010:
Excess temperature protection, adjustable 0°C ... 160°C
Low level protection Float switch
Classification to DIN 12876-1 Class III
Alarm Optical and audible (permanent)
Ambient conditions to IEC 61010-1:
• For indoor use only.
• Altitude up to 200 m - normal zero.
• Ambient temperature: +5 ... +40 °C
Humidity
• Maximum relative humidity 80 %, for temperatures up to 31 °C,
• linear decrease to 50 % relative humidity at a temperature of 40 °C
• Max. voltage fluctuation of ±10 % are permissible.

Protection class to EN 60 529: IP 21

The device complies with Safety class I
Overvoltage category II
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Pollution degree 2

15 Materials of parts in contact with the bath fluid

15.1 Circulator
Description Material
Motor 1.4301
Pump PPS
Heater 1.4404 / 316L
Sensor 2xPt 100 metal, fitted 1.4571
Sensor connection 1.4301
Float 1.4401
Float pipe 1.4571
Barbed fitting 1.4301
Tubing FPM / FKM
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42
Accessories

16 Accessories
A wide selection of accessories is available for the following products at
www.julabo.com for optimum adaption to your temperature control
task.

16.1 For external connection

• Bath fluids
• Tubing
• Shut-off valve
• Barbed fittings
• Adapters

16.2 For open baths

Temperature applications for samples, preparation of samples for
serology and clinical chemistry, analysis, etc.
• Test tube racks
• Immersion-height adjustable platforms
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17 Maintenance, cleaning, storage

Danger of injury during maintenance, repair and transport

Danger from mains voltage.
• Have all service and repair work carried out by authorized
specialists only.
• Switch off the unit and pull the plug,
- before starting any cleaning work,
- before carrying out any service or repair work or
- before moving the unit.
• Empty the unit completely before moving it.
• Transport the unit carefully.

17.1 Maintain the refrigeration capacity.

The unit is designed for continuous operation under normal conditions.
No regular maintenance work is required.
The condenser on the front should be cleaned from time to time to
maintain the full refrigeration capacity.
1. Switch off the device.
2. Pull the plug.
3. Remove the venting grid.
4. Vacuum the dirt on the condenser.

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17.2 Cleaning
Use low surface tension water (for example soap suds) to clean the bath
and the functional parts of the circulator which are immersed in it. Clean
the exterior device with a cloth and low surface tension water.
The circulator is designed for continuous use under normal conditions.
Regular maintenance work is not required.
The bath tank should only be filled with suitable bath fluid. In case of
contamination, the bath fluid must be replaced from time to time.
Cleaning open bath tanks

• Leaking bath tanks due to unsuitable cleaning products.

• These bath tanks are not resistant to solvents and pure alcohol.
Incorrect cleaning products will make the surface of the bath go
cloudy and will dissolve the adhesive. Plastic baths will
therefore start to leak.
• Clean bath tanks with wet products - never rub them dry. The
cloths or sponges you use should not be contaminated (with
scouring particles or dust).
• A good, essentially smear-free cleaning effect can be achieved
using a microfiber cloth moistened with water.
• Use warm water with a few drops of dish washing-up liquid and
a soft cloth to clean the bath.
• In case of heavy soiling, particularly with grease, benzol-free
pure benzene (washing benzene, light benzene) can be used for
cleaning.

Other cleaning products Never use solvents such as: Never use the following:
Alcohol compounds up to 5% Acetone Souring agent
alcohol content* Carbon tetrachlorocarbon Acidic cleaning products
Washing benzene* Methyl ethyl ketone (degreasing)
Javel water, bleach* Paint thinners Washout solvent
Petroleum ether* and: Spray cleaners for glass
Ammonium hydroxide* Petroleum windows
Soap suds** Methylated spirits Scouring cloths
Soda water** Lye Brushes
* See safety data sheet
** Max. water temperature 60°C for Plexiglas

44
Storage

18 Storage
Units which are not to be reused must be stored in a dry, place,
protected from dust and frost, after cleaning. The system components
must be fully emptied and carefully dried, for example using compressed
air. Seal the connectors.

19 Repair service
Before asking for a service technician or returning a JULABO unit for
repair, please contact our Technical Service Department.

JULABO Technical Service

Phone: +49 7823 / 51-66
Fax: +49 7823 / 51-99
Email: service.de@julabo.com

If you return a unit to JULABO:

• Clean the unit to avoid any harm to the service personnel.
• It is essential that you enclose a short fault description.
• Before returning the device, please complete an online return form
at http://www.julabo.com/com/support/rma.
• Ensure careful and adequate packing..
• JULABO cannot accept any liability for damage caused by incorrect
packaging.
• In the interest of product improvement, JULABO reserves the right to
make any necessary technical modifications during the repair to
ensure the proper functioning of the unit.

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19.1 Warranty
JULABO warrants the proper functioning of the unit when connected and
handled correctly and in accordance with the operating manual.
The warranty period is
one year.

45
 Extension of 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 www.julabo.de, 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.
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Any other compensation claims are excluded from this guarantee.

20 Waste disposal
20.1 Packaging
Packaging materials must be disposed of as prescribed by the current
local regulations.

20.2 Unit
In the European Economic Area (EEA) the disposal of waste equipment is
regulated in the "Directive of the European Parliament and of
the Council on Waste Electrical and Electronic Equipment
(WEEE)". The current official journal on this matter is available on the
European Parliament's homepage.
The symbol for the separate collection of electrical and electronic
equipment is a crossed-out trash can..
Disposal with household waste (unsorted waste) or similar collections of
municipal waste is not permitted!
Contact an authorized waste disposal contractor in your country.

20.3 Refrigerant
Refrigerants must be disposed of as prescribed by the current local
regulations.
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They may only be disposed of by trained personnel.

46
EC conformity

21 EC conformity

47
48
EC conformity

49
50
EC conformity

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51
JULABO GmbH
Eisenbahnstrasse 45
77960 Seelbach / Germany
Tel. +49 (0) 7823 / 51-0
Fax +49 (0) 07823 / 2491
info.de@julabo.com
www.julabo.com

Changes without prior notification reserved. 14.08.2015

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