Julabo AWC100 User manual

19534820_a.doc 27.05.11
English
Operating
manual
Compact Recirculating Cooler
AWC100
AWC 100
JULABO USA, Inc.
884 Marcon Boulevard
Allentown, PA 18109
Phone: [phone]
Fax: [phone]
info @ julabo.com
www.julabo.com

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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 9001:2008. 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.
1.953.4820 05/11 Printed in Germany Changes without prior notification reserved
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
2.2. Technical specifications..................................................................................7
3. SAFETY NOTES FOR THE USER.......................................................................8
3.1. Explanation of safety notes.............................................................................8
3.2. Explanation of other notes..............................................................................8
3.3. Safety instructions ..........................................................................................8
4. OPERATING CONTROLS AND FUNCTIONAL ELEMENTS..............................10
5. PREPARATIONS................................................................................................11
5.1. Installation.....................................................................................................11
5.2. Bath fluids.....................................................................................................11
5.3. Tubing...........................................................................................................12
5.4. Filling ............................................................................................................12
5.5. Draining ........................................................................................................12
6. OPERATING PROCEDURES.............................................................................13
6.1. Power connection.........................................................................................13
6.2. Switching on .................................................................................................13
6.3. Changing cooling capacity............................................................................13
7. CLEANING / REPAIRING THE UNIT..................................................................14
8. WARRANTY PROVISIONS ................................................................................15

Intended use
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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,
semi-luxury 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 AWC 100 recirculating cooler is suitable for the cooling of water in loop circuits. A
pump supplies the cooling water to the external circuit via the cooling water outlet. The
recirculating cooler constantly withdraws heat from the circulating fluid. The water
temperature varies with the ambient temperature and may not exceed 40 °C.
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.
¾The personnel operating the units should be regularly instructed about the dangers
involved with their job activities as well as measures to avert these dangers.
¾Make sure all persons tasked with operating, installing, and maintaining the unit have
read and understand the safety information and operating instructions.
¾When 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 JULABO USA, Inc.
884 Marcon Boulevard
Allentown, PA 18109
Phone:[phone]
Fax: [phone]
info @ julabo.com
www.julabo.com
Safety recommendations for the operator
¾You received a product conceived for industrial use. Nevertheless, avoid strikes to the
housing, vibrations, damages to the keypad foil (keys, display) or contamination.
¾Make 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.
¾Take care that the mains supply features a low impedance to avoid any negative affects
on the instrument being operated in the same mains.
¾This 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.
¾Permissible ambient temperature: max. 40 °C, min. 5 °C.
¾Permissible relative air humidity: 50 % (40 °C).
¾Do not store in an aggressive atmosphere. Protect from contaminations.
¾Do 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.
The recirculating coolers are not for use in explosive environment.

Operator responsibility – Safety instructions
6
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.
1
Warning label W00: Colors: yellow, black
Danger area. Attention! Observe instructions.
(operating manual, safety data sheet)
2
or
Mandatory label M018: Colors: blue, white
Carefully read the user information prior to beginning operation.
Scope: EU
2
Semi S1-0701 Table A1-2 #9
Carefully read the user information prior to beginning operation.
Scope: USA, NAFTA
3 Warning label Proposition 65
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.
2.1. Disposal
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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2.2. Technical specifications
AWC100
Working temperature range °C +20 ... +40
Cooling capacity varying with the temp. Difference
between return line temp. and ambient temperature
stage 0
stage 1
°C
W
W
20 15 10 5
400 320 220 120
550 440 300 180
Circulating pump
flow rate, max. l/min 2.9
pressure, max. bar 0,2
Noise level, 1 m distance max dB(A) 55
Filling volume (internal storage tank) l 0.85
Overall dimensions (WxLxH) cm 20x34x30
Ambient temperature °C 5 ... 40
Weight kg 11
Mains power connection 230 V/50-60 Hz V/Hz 207-253V/50-60
Current draw (at 230 V) A 1
Mains power connection 115 V/60 Hz V/Hz 103-127V/60
Current draw (at 115 V) A 1
All measurements have been carried out at: rated voltage and frequency
ambient temperature: 20 °C .
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 environment.

Safety notes for the user
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3. Safety notes for the user
3.1. Explanation of safety notes
In addition to the safety warnings listed above, warnings are posted throughout
the manual. These warnings are designated by an exclamation mark inside an
equilateral triangle. “Warning of a dangerous situation (Attention! Please follow
the documentation).”
The danger is classified using a signal word.
Read and follow these important instructions.
Warning:
Describes a possibly highly dangerous situation. 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.
3.2. Explanation of other notes
Note!
Draws attention to something special.
Important!
Indicates usage tips and other useful information.
3.3. Safety instructions
Follow the safety recommendations to prevent damage to persons or
property. Further, the valid safety instructions for working places must be
followed.
•Only connect the unit to a power socket with earthing contact (PE –
protective earth)!
•The power supply plug serves as a safe disconnecting device from the
line and must always be easily accessible.
•Place the instrument on an even surface on a pad made of non-
inflammable material.
•The instrument is not suited for unsupervised continuous operation.
•Do not stay in the area below the unit.

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•Make sure you read and understand all instructions and safety
precautions listed in this manual before installing or operating your unit.
•Never operate the unit without bath fluid in the bath.
•Do not drain the bath fluid while it is hot or cold!
•Use suitable connecting tubing.
•Avoid sharp bends in the tubing, and maintain a sufficient distance from
surrounding walls.
•Make sure that the tubing is securely attached.
•Regularly check the tubing for material defects (e.g., for cracks).
•Never operate damaged or leaking equipment.
•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.
•Always turn off the unit and disconnect the mains cable from the power
source before cleaning the unit.
•Always empty the bath before moving the unit.
•Transport the unit with care.
•Sudden jolts or drops may cause damage in the interior of the unit.
•Observe all warning labels.
•Never remove warning labels.
•Never operate equipment with damaged mains power cables.
•Repairs are to be carried out only by qualified service personnel.
WARNING
This product contains chemicals known to the state of California to cause
cancer, birth defects or other reproductive harm.

Operating controls and functional elements
10
4. Operating controls and functional elements
AWC 100
1234 56
Front
4
A
M
P
4
A
M
P
7
9
8
Back
1 Mains power switch, illuminated
2 Filling level indication
3 Lid on cooling water storage tank
4 Handle
5 Pump connector: Return
6 Pump connector: Feed
7 Safety cutouts: Mains fuses 4 A
8 Mains power cable with plug
9 Selector switch for cooling capacity
Filling level indication
max.
min.