Thermo Scientific Fisherbrand GT4 User manual

Instruction manual
Fisherbrand GT4 Centrifuge
Fisherbrand GT4R Centrifuge
50156444-b • 11 / 2020
15858722
15848722
15838722
15828722

IMPORTANT Read this instruction manual. Failure to follow the instructions in this manual can result in
damage to the unit, injury to operating personnel, and poor equipment performance.
CAUTION All internal adjustments and maintenance must be performed by qualified service personnel.
Material in this manual is for informational purposes only. The contents and the product it describes are
subject to change without notice. Thermo Fisher Scientific makes no representations or warranties with
respect to this manual. In no event shall be held liable for any damages, direct or incidental, arising from or
related to the use of this manual.
BIOShield™, Fiberlite™, HIGHConic™, Microliter™, MicroClick™ and Auto-Lock™.
All trademarks are the property of Thermo Fisher Scientific Inc. and its subsidiaries unless otherwise specified.
© 2020 Thermo Fisher Scientific Inc. All rights reserved.

Contents
Preface ........................................................................ 1
Scope of Supply....................................................... 1
Intended Use............................................................ 1
Accident Prevention ................................................. 1
Precautions.............................................................. 1
Introduction and Description ........................................ 3
Characteristics ......................................................... 3
Technical Data ......................................................... 3
Directives, Standards and Guidelines ....................... 4
Functions and Features............................................ 4
Mains Supply ........................................................... 5
Refrigerant ............................................................... 5
Rotor Selection ........................................................ 5
Before Use................................................................... 6
Before Setting Up..................................................... 6
Transporting the Centrifuge...................................... 6
Location................................................................... 6
Aligning the Centrifuge ............................................. 6
Mains Connection .................................................... 7
Storage .................................................................... 7
Control Panel............................................................... 8
Control Panel ........................................................... 8
Keys......................................................................... 8
Operation..................................................................... 9
Switch on Centrifuge................................................ 9
Lid Opening ............................................................. 9

Close Lid.................................................................. 9
Rotor Installation ...................................................... 9
Entering Parameters................................................. 10
Saving Programs...................................................... 11
Centrifugation........................................................... 11
Temperature Adaptation During Standstill ................ 12
Short-term Centrifugation......................................... 12
Removing the Rotor ................................................. 12
Aerosol-Tight Rotors ................................................ 13
Aligning the Centrifuge ............................................. 13
System Menu............................................................... 14
Description............................................................... 15
Maintenance and Care................................................. 16
Cleaning Intervals ..................................................... 16
Cleaning................................................................... 16
Disinfection .............................................................. 17
Decontamination ...................................................... 17
Autoclaving .............................................................. 18
Maintenance and Repair Services ............................ 18
Troubleshooting........................................................... 19
Mechanical Emergency Door Release ...................... 19
Troubleshooting by User .......................................... 20
When to Contact a Service Technician ..................... 23
Chemical Compatibility Chart ...................................... 24

Centrifuge GT 4 / 4R Preface | 1
Preface
Before starting to use the centrifuge, read through this
instruction manual carefully and follow the instructions.
The information contained in this instruction manual is the
property of Thermo Fisher Scientific; it is forbidden to copy or
pass on this information without explicit approval.
Failure to follow the instructions and safety information in this
instruction manual may void the seller’s warranty.
Scope of Supply
If any parts are missing, contact your nearest Fisher Scientific
sales representative.
Intended Use
This centrifuge is designed to separate sample mixtures of
different densities like chemicals, environmental samples and
other non-human body samples.
Accident Prevention
Prerequisite for the safe operation of the Fisherbrand
GT 4 / 4R Centrifuge is a work environment in compliance
with standards, directives and trade association safety
regulations and proper instruction of the user.
The safety regulations contain the following basic
recommendations:
• Maintain a radius of at least 30 cm around the centrifuge.
• Implementation of special measures which ensure that no
one can approach the centrifuge for longer than
absolutely necessary while it is running.
• The mains plug must be freely accessible at all times.
Pull out the power supply plug or disconnect the power
supply in an emergency.
Precautions
In order to ensure safe operation of the Fisherbrand GT 4 / 4R
Centrifuge, the following general safety regulations must be
followed:
• Do not manipulate the safety devices.
• The centrifuge should be operated by trained specialists
only.
• The centrifuge is to be used for its intended use only.
• Plug the centrifuge only into sockets which have been
properly grounded.
• Do not move the centrifuge while it is running.
• Do not lean on the centrifuge.
• Use only rotors and accessories approved for this
centrifuge. Exceptions to this rule are commercially
available glass or plastic centrifuge tubes, provided they
have been approved for the speed or the RCF value of
the rotor.
• Do not use rotors that show any signs of corrosion and/
or cracks.
• Do not touch the mechanical components of the rotor
and do not make any changes to the mechanical
components.
• Use only with rotors which have been properly installed.
Follow the instructions on the Auto-Lock™ in section
Rotor Installation.
• Use only with rotors which have been loaded properly.
Follow the instructions given in the rotor manual.
• Never overload the rotor. Follow the instructions given in
the rotor manual.
• Never start the centrifuge when the lid is open.
• Never open the lid until the rotor has come to a complete
stop and this has been confirmed in the display.
• The lid emergency release may be used in emergencies
only to recover the samples from the centrifuge, e.g.
during a power failure (refer to the section Mechanical
Emergency Door Release).
Item Description Quantity Check
Centrifuge GT 4 / 4R 1
Power supply cable 1
Instruction manual 1
CD 1
Anti-corrosion oil 1

2 | Preface Centrifuge GT 4 / 4R
• Never use the centrifuge if parts of its cover panels are
damaged or missing.
• Do not touch the electronic components of the centrifuge
or alter any electronic or mechanical components.
• Observe the safety instructions.
Pay attention to the following:
•Location: Well-ventilated environment, set-up on a level
and rigid surface with adequate load-bearing capacity.
•Rotor installation: Make sure the rotor is locked
properly into place before operating the centrifuge.
• When working with corrosive samples (salt solutions,
acids, bases), the accessory parts and vessel have to be
cleaned carefully.
• Always balance the samples.
Centrifuging hazardous substances:
• Do not centrifuge explosive or flammable materials or
substances which could react violently with one another.
• The centrifuge is neither inert nor protected against
explosion. Never use the centrifuge in an explosion-prone
environment.
• Do not centrifuge toxic or radioactive materials or any
pathogenic micro-organisms without suitable safety
precautions.
When centrifuging microbiological samples from the Risk
Group II (according to the Bio-safety Manual of the World
Health Organization WHO), aerosol-tight biological seals
have to be used.
For materials in a higher risk group, extra safety measures
have to be taken.
• If toxins or pathogenic substances enter into the
centrifuge or its parts, appropriate disinfection measures
have to be taken (refer to the section Disinfection).
• Highly corrosive substances which can cause material
damage and impair the mechanical stability of the rotor
should only be centrifuged in corresponding protective
tubes.
IF A HAZARDOUS SITUATION OCCURS, TURN OFF
THE POWER SUPPLY TO THE CENTRIFUGE AND
LEAVE THE AREA IMMEDIATELY.
This symbol refers to general hazards.
CAUTION: Means that material damage could
occur.
WARNING: Means that injuries or material
damage or contamination could occur.
This symbol refers to biological hazards.
Observe the information contained in the
instruction manual to keep yourself and your
environment safe.

Centrifuge GT 4 / 4R Introduction and Description | 3
Introduction and Description
Characteristics
Several rotors with a wide range of tubes can be used.
The set speed is reached within seconds. The
maintenance-free induction motor ensures quiet and low-
vibration operation even at high speeds, and guarantees a
very long lifetime.
The user-friendly control panel makes it easy to preset the
speed, RCF value, running time, temperature, and running
profile (acceleration and braking curves). You can choose
between the display of speed and RCF or the entry mode.
These settings can be changed even while the centrifuge is
running.
With the help of the PULSE key , you can also centrifuge a
sample for just a few seconds, if required.
The Fisherbrand GT 4 / 4R Centrifuge is equipped with
various safety features:
• The housing and rotor chamber consists of steel plate,
the interior is made of armour steel, while the front panel
is made of high-impact resistant plastic.
• The lid is equipped with a view port and a lock.
• The lid of the centrifuge can only be opened while the
centrifuge is switched ON and the rotor has come to a
complete stop. The centrifuge cannot be started until the
lid is closed properly.
• The integrated rotor detection systems ensure that no
inadmissible speed settings can be preselected.
• Electronic imbalance recognition
• Lid emergency release: For emergencies only, e.g. during
power failures (refer to the section Mechanical
Emergency Door Release)
Technical Data
The technical data of the Fisherbrand GT 4 / 4R Centrifuge is listed in the following table.
PULSE
Feature GT 4 GT 4R
Environmental conditions
Use in interior spaces
Altitudes of up to 2
000 m above sea level
max. relative humidity 80 % up to 31 °C; decreasing linearly up to
50 % relative humidity at 40 °C.
Permissible ambient temperature +2 °C to +35 °C +2 °C to +35 °C
Overvoltage category II II
Pollution degree 2 2
Heat dissipation
Ventilated Refrigerated
230 V 230 V
5 800 BTU/h 6 653 BTU/h
IP 20 20
Running time Unlimited Unlimited
Max Speed nmax 15
200 rpm (depending on the
rotor)
15 200 rpm (depending on the
rotor)
Min Speed nmin 300 rpm 300 rpm
Maximum RCF value at nmax 25
314 x g 25 314 x g
Maximum kinetic energy < 62.5 kJ < 62.5 kJ

4 | Introduction and Description Centrifuge GT 4 / 4R
Directives, Standards and Guidelines
Functions and Features
The following table gives an overview of the important functional and performance characteristics of the Fisherbrand GT 4 / 4R
Centrifuge.
Noise level at maximum speed < 64 dB (A) < 64 dB (A)
Temperature setting range -10 °C to +40 °C
Dimensions Ventilated Refrigerated
Height
Width
Depth
Table top height
360 mm
550 mm
670 mm
310 mm
360 mm
745 mm
670 mm
310 mm
Weight without rotor 86 kg 116 kg
Feature GT 4 GT 4R
Tension /
Frequency
Directives Produced and inspected
according to the following
standards and guidelines
220-230 V
50 / 60 Hz
2006/42/EC Machinery
2014/35/EU Low Voltage
(Protective Goals)
2014/30/EC Electromagnetic Compatibility (EMC)
2011/65/EC RoHS
Directive on the Restriction of the use of certain Hazardous
Substances in electrical and electronic equipment
EN 61010-1, 2nd Edition
IEC 61010-2-020, 2nd Edition
EN 61326-1
EN ISO 14971
EN ISO 9001
Component / Function Description / Features
Structure / Housing Galvanized steel chassis with armoured plating
Chamber Stainless steel / varnished steel
Drive Induction drive without carbon brushes
Keys and display Easy-to-clean keypad and display surface
Controls Microprocessor-controlled
Internal memory The most recent data is saved
Functions RCF-selection, temperature control, pretemp with cooling equipped devices
Acceleration / braking profiles 9 acceleration and 10 braking curves
Rotor recognition Automatic
Imbalance recognition Electronic, contingent on rotor and speed
Lid lock Automatic lid closing and locking starting from an initial hold position

Centrifuge GT 4 / 4R Introduction and Description | 5
Mains Supply
The following table contains an overview of the electrical connection data for the Fisherbrand GT 4 / 4R Centrifuge. Consider
the following date when selecting the mains connection socket.
Refrigerant
Refrigerant contains fluorinated greenhouse gases in a hermetically sealed system.
Rotor Selection
Various rotors are available to choose from the following:
The technical data of the rotors and the corresponding
adapters and reduction sleeves for various commercially
available containers can be found in the corresponding rotor
operating manuals.
For more information visit our website at:
fishersci.com
Typ e Mains
Voltage Frequency Rated current
Power
consumption
Equipment
fuse
Building
fuse
Refrigerated 230 V 50 / 60 Hz 10.5 A 1 950 W 15 AT 16 AT
Ventilated 230 V 50 / 60 Hz 11 A 1 700 W 15 AT 16 AT
Order no. Centrifuge Refrigerant Quantity Pressure GWP CO2e
75004558 Fisherbrand GT4R R-134a 0.43 kg 21 bar 1 430 0.61 t
75004555 Fisherbrand GT4R R-134a 0.43 kg 21 bar 1 430 0.61 t
TX-1000 75003017
TX-750 75003180
BIOShield™1000 A 75003182
M-20 75003624
Fiberlite™F15-6 x 100y 75003698
HIGHConic™II 75003620
Fiberlite™F21-48 x 2 75003664
Microliter™48 x 2 75003602
MicroClick™30 x 2 75005719
Microliter™30 x 2 75003652

6 | Before Use Centrifuge GT 4 / 4R
Before Use
Before Setting Up
1. Check the centrifuge and the packaging for any shipping
damage.
Inform Fisher Scientific customer service immediately if
any damage is discovered.
2. Remove the packaging.
3. Check the order for completeness (refer to the section
Scope of Supply). If the order is incomplete, contact
Fisher Scientific.
Transporting the
Centrifuge
• Due to the weight (refer to the section Technical Data),
the centrifuge should be carried by several people.
• Always lift the centrifuge at both sides.
Figure 1. Lifting the centrifuge at both sides.
• The centrifuge can be damaged by impacts.
• Transport the centrifuge upright and if at all possible in its
packaging.
Location
The centrifuge should only be operated indoors.
The set-up location must fulfill the following requirements:
• A safety zone of at least 30 cm must be maintained
around the centrifuge. People and hazardous substances
must be kept out of the safety zone while centrifuging.
• The supporting structure must be stable and free of
resonance, for example, a level laboratory bench.
• The supporting structure must be suitable for horizontal
setup of the centrifuge.
• The centrifuge should not be exposed to heat and strong
sunlight.
• The set-up location must be well-ventilated at all times.
Aligning the Centrifuge
The horizontal alignment of the centrifuge must be checked
every time after moving it to a different location.
The supporting structure must be suitable for horizontal setup
of the centrifuge.
WARNING: Always lift the centrifuge on both
sides. Never lift the centrifuge by its front or the
back panel.
Always remove the rotor before moving the
centrifuge.
WARNING: UV rays reduce the stability of
plastics.
Do not subject the centrifuge, rotors and plastic
accessories to direct sunlight.
CAUTION: If the centrifuge is not leveled with
ground, imbalances can occur and the centrifuge
can be damaged.
Do not place anything under the feet to level the
centrifuge.