Julabo FT402, FT903, FT902 Instruction Manual

English

Operating manual

FT902

°C

www.julabo.com

Immersion Coolers

FT402
FT902
FT903

19534620-V4.doc Printing: 03.02.17

JULABO USA, Inc.
884 Marcon Boulevard
Allentown, PA 18109
Phone: [phone]
Fax: [phone]
[e-mail]

Temperature control devices for research and industry are developed,

9001

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.

The JULABO Quality Management System

produced, and distributed according to the requirements of ISO
and ISO 14001. Certificate Registration No. 01 100044846

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.

1.953.4620-V4 02/17 Printed in Germany Changes without prior notification reserved

Important: keep operating manual for future use

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Immersion Coolers

TABLE OF CONTENTS

Operating manual .................................................................................................................... 4

1. Intended use ................................................................................................................... 4

1.1. Description .................................................................................................................. 4

2. Operator responsibility – Safety instructions ................................................................... 4

2.1. Disposal ...................................................................................................................... 7

2.2. Technical specifications .............................................................................................. 8

Operating instructions ........................................................................................................... 11

3. Operating controls and functional elements .................................................................. 11

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 .................................................................................................... 14

5. Preparations .................................................................................................................. 15

5.1. Installation ................................................................................................................. 15

5.2. Immersion probe / Sensor connection - Pt100 .......................................................... 16

6. Operating procedures ................................................................................................... 17

6.1. Power connection ..................................................................................................... 17

6.2. Switching on / Start - Stop ........................................................................................ 17

6.3. Automatic / non-automatic start mode ...................................................................... 18

6.4. Setting the temperatures........................................................................................... 19

6.5. Temperature control.................................................................................................. 19

7. Troubleshooting guide / Error messages ...................................................................... 20

8. Electrical connection ..................................................................................................... 21

9. Cleaning / repairing the unit .......................................................................................... 22

10. WARRANTY PROVISIONS .......................................................................................... 24

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Operating manual

JULABO immersion coolers are not suitable for direct temperature control of

medium (bath fluid).

PID1

Pt100

IEC
EN
DIN

Operating manual

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.

foods, semi-luxury foods and tobacco, or pharmaceutical and medical products.
Direct temperature control means unprotected contact of the object with the bath

1.1. Description

 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.

The 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.

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.

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Immersion Coolers

 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 USA, Inc.

884 Marcon Boulevard
Allentown, PA 18109

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.

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

 Permissible ambient temperature: max. 35 °C, min. 5 °C.

 Permissible relative humidity: 50% (35 °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.

5

Operator responsibility – Safety instructions

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 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

2

or

2

3

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.

Danger area. Attention! Observe instructions.
(operating manual, safety data sheet)

Carefully read the user information prior to beginning operation.
Scope: EU

Carefully read the user information prior to beginning operation.
Scope: USA, NAFTA

Warning label Proposition 65

6

Attention:

- Note a minimum bending radius of the probe.

- Do not touch cold probe.

Immersion Coolers

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 the refrigerants R134a R-404A, and R-23, 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.

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Operator responsibility – Safety instructions

2.2. Technical specifications

Immersion cooler FT402

Working temperature range °C -40 ... 30

Temperature stability °C ±0.5

Temperature selection digital

Temperature indication LED

Resolution °C 0.1

Temperature control PID1

Cooling capacity °C

Medium ethanol kW

Cooling compressor 1-stage

Refrigerant 230 V / 50 Hz
115 V / 60 Hz

Electrical connections:

Pt100 external sensor Pt100

Overall dimensions (WxDxH) cm 20x30x43

Immersion probe (Lxdia.) cm 12x5

Immersion probe, flexible (Lxdia.) cm -------

Connection tubing (L) cm 120

Noise level, distance 1 m dBA 61

Weight kg 24

Ambient temperature °C 5 ... 35

+20 10 -20 -40

0.45 0.36 0.14 0.03

R404A
R134a

Mains power connection V/ Hz 230 / 50- 60

Current input (at 230 V) A 4

Mains power connection V/ Hz 115 / 60

Current input (at 115 V) A 4

All measurements have been carried out at: rated voltage and frequency
ambient temperature: 20 °C Technical changes without prior notification reserved.

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