Julabo FT402 User manual

English
Operating manual
Immersion Coolers
FT402
FT902
FT903
FT 4 02
°C
FT902
°C
JULABO GmbH
77960 Seelbach / Germany
Tel. [phone]
Fax [phone]
[e-mail]
www.julabo.com
1.950.4620.en.V08 06/22

2
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 immersion coolers. For optimal utilization of all functions, we
recommend that you thoroughly study this manual prior to beginning operation.
Unpacking and inspecting
Unpack the immersion cooler and accessories and inspect them for possible transport
damage. Damage should be reported to the responsible carrier, railway, or postal authority,
and a damage report should be requested. 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.
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...................................................................................................................... 7
2.2. EC Declaration of Conformity ..................................................................................... 8
2.3. UKCA Declaration of Conformity .............................................................................. 11
2.4. Technical specifications............................................................................................ 15
3. Operating controls and functional elements.................................................................. 19
4. Safety notes for the user............................................................................................... 21
4.1. Explanation of safety notes....................................................................................... 21
4.2. Explanation of other notes ........................................................................................ 21
4.3. Safety instructions .................................................................................................... 22
5. Preparations.................................................................................................................. 23
5.1. Installation................................................................................................................. 23
5.2. Immersion probe / Sensor connection - Pt100.......................................................... 24
6. Operating procedures ................................................................................................... 25
6.1. Power connection ..................................................................................................... 25
6.2. Switching on / Start - Stop ........................................................................................ 25
6.3. Automatic / non-automatic start mode ...................................................................... 26
6.4. Setting the temperatures........................................................................................... 27
6.5. Temperature control.................................................................................................. 27
7. Troubleshooting guide / Error messages ...................................................................... 28
8. Electrical connection ..................................................................................................... 29
9. Cleaning / repairing the unit .......................................................................................... 30

Intended use
4
1. Intended use
JULABO immersion coolers have been designed for temperature application to specific fluids
in a bath tank.
For example: Dewar vessels, beakers, or other containers in conjunction
with heating circulators for continuous countercooling
or for dry-ice substitution.
JULABO immersion coolers 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
PID1
Pt100
The immersion coolers are operated via the keypad. The implemented
microprocessor technology allows to set and to store the setpoint that can
be indicated on the LED temperature display.
The PID temperature control adapts the cooling supply to the thermal
requirements of the bath.
Electrical connection:
Connection for Pt100 external sensor for temperature measurement and
control.
Model FT402 is provided with a handle for portable use.
Models FT902, FT903 are equipped with four castors. Two of the castors
include locking levers that should be pressed down after setting up the unit
to prevent it from moving.
The immersion probe is connected to the instrument with a flexible, specially
insulated tube. On models FT902, FT903 the immersion probe is also
flexible and may be adjusted precisely to different positions within the vessel.
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.

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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 circulator
may be operated only by persons who are absolutely familiar with these materials and the
circulator. These persons must be fully aware of possible risks.
If you have any questions concerning the operation of your unit or the information in this
manual, please contact us!
Contact JULABO GmbH
Gerhard-Juchheim-Strasse 1
77960 Seelbach / Germany
[phone]
[phone]
[e-mail]
www.julabo.com
Safety instructions for the operator:
Avoid strikes to the housing, vibrations, damage to the operating-element panel (keypad,
display), and contamination.
Make sure the product is checked for proper condition regularly (depending on the
conditions of use). Regularly check (at least every 2 years) the proper condition of the
mandatory, warning, prohibition and safety labels.
Make sure that the mains power supply has low impedance to avoid any negative effects
on the instruments being operated on 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 affect other devices with components sensitive to magnetic fields
(e.g., monitors). We recommend maintaining a minimum distance of 1 m.
Permissible ambient temperature: max. 40 °C, min. 5 °C.
Permissible relative humidity: 50% (40 °C).
Do not store the unit in an aggressive atmosphere. Protect the unit from contamination.
Do not expose the unit to sunlight.
Appropriate operation
Only qualified personnel is authorized to configure, install, maintain, or repair the circulator.
Persons who operate the circulator must be trained in the particular tasks by qualified
personnel. The summarized user guidance (short manual) and the specification table with
information on individual parameters are sufficient for this.

Operator responsibility – Safety instructions
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Use
The bath can be filled with flammable materials. Fire hazard!
There might be chemical dangers depending on the bath medium used.
Observe all warnings for the used materials (bath fluids) and the respective instructions (safety
data sheets).
Insufficient ventilation may result in the formation of explosive mixtures. Only use the unit in
well ventilated areas.
Only use recommended materials (bath fluids). Only use non-acid and non corroding
materials.
When using hazardous materials or materials that could become hazardous, the operator
must affix the enclosed safety labels (1 + 2) to the front of the unit so they are highly visible:
1 Danger area. Attention! Observe instructions.
(operating manual, safety data sheet)
2 Carefully read the user information prior to beginning operation.
Particular care and attention is necessary because of the wide operating range. There are
thermal dangers: Touchable parts of the probe can be very cold. The user must attach the
enclosed safety labels to the unit so they are easily visible.
Attention:
- Note a minimum bending radius of the
probe.
- Do not touch cold probe.

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2.1. Disposal
The product may be used with oil as bath fluid. These oils fully or partially consist of mineral
oil or synthetic oil. For disposal, follow the instructions in the material safety data sheets.
This unit contains refrigerants, which at this time are not considered harmful to the ozone
layer. However, over the long operating period of the unit, disposal rules may change.
Therefore, only qualified personnel should handle the disposal.
Valid in EU countries
See the current official journal of the European Union – WEEE directive.
Directive of the European Parliament and of the Council on waste electrical
and electronic equipment (WEEE).
This directive requires electrical and electronic equipment marked with a
crossed-out trash can to be disposed of separately in an environmentally
friendly manner.
Contact an authorized waste management company in your country.
Disposal with household waste (unsorted waste) or similar collections of
municipal waste is not permitted!

Operator responsibility – Safety instructions
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2.2. EC Declaration of Conformity

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Operator responsibility – Safety instructions
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