Beckman Coulter Spinchron DLX User manual

SDLX-IM-8
Spinchron™DLX Benchtop Centrifuge
Instruction Manual
IMBALANCE
ENTER
PULSE
ACCEL
DECEL
RPM
RCF
ROTOR
TIME
STOP
START
FAST
STOP
OPEN
DOOR
SPEED TIME ACC/DEC
™
®
MADEINU.S.A.

Symbol
Symbol
Symbole
Símbolo
Title / Titel / Titre / Titulo / Titolo /
Dangerous voltage
Gefährliche elektrische Spannung
Courant haute tension
Voltaje peligroso
Pericolo: alta tensione
Attention, consult accompanying documents
Achtung! Begleitpapiere beachten!
Attention, consulter les documents joints
Atención, consulte los documentos adjuntos
Attenzione: consultare le informazioni allegate
On (power)
Ein (Netzverbindung)
Marche (mise sous tension)
Encendido
Acceso (sotto tensione)
Off (power)
Aus (Netzverbindung)
Arrêt (mise hors tension)
Apagado
Spento (fuori tensione)
Protective earth (ground)
Schutzleiteranschluß
Liaison à la terre
Puesta a tierra de protección
Collegamento di protezione a terra
Earth (ground)
Erde
Terre
Tierra
Scarica a terra
!
/
Simbolo

SAFETY NOTICE
This safety notice summarizes information basic to the safe operation of the equipment described
in this manual. The international symbol displayed above is a reminder that all safety instructions
should be read and understood before installation, operation, maintenance, or repair of this centri-
fuge. When you see the symbol on other pages, pay special attention to the safety information
presented. Observance of safety precautions will also help to avoid actions that could damage or
adversely affect the performance of the centrifuge.
Safety During Installation and/or Maintenance
This centrifuge weighs 65.4 kg (144.0 lb). DO NOT attempt to lift or move the centrifuge without
assistance from another person.
Be sure to use the anchoring system to secure the centrifuge in place. The anchoring system is
designed to reduce the possibility of injury or damage which could result from centrifuge move-
ment in the event of a major rotor mishap.
Any servicing of this centrifuge that requires removal of any covers can expose parts which involve
the risk of electric shock or personal injury. Make sure that the power switch is off and the centri-
fuge is disconnected from the main power source, and refer such servicing to qualified personnel.
Do not replace any centrifuge components with parts not specified for use on this instrument.
Electrical Safety
To reduce the risk of electrical shock, this centrifuge uses a three-wire electrical cord and plug to
connect this equipment to earth-ground. To preserve this safety feature:
• Make sure that the matching wall outlet receptacle is properly wired and earth-grounded. Check
that the line voltage agrees with the voltage listed on the name-rating plate affixed to the
centrifuge.
• Never use a three-to-two wire plug adapter.
• Never use a two-wire extension cord or a two-wire non-grounding type of multiple-outlet
receptacle strip.
Do not place containers holding liquid on or near the chamber door. If they spill, liquid may get into
the centrifuge and damage electrical or mechanical components.
Safety Against Risk of Fire
Certain electrical circuits within this centrifuge are protected by fuses against overcurrent condi-
tions. For continued protection against the risk of fire, replace only with the same type and rating
specified.
This centrifuge is not designed for use with materials capable of developing flammable or explo-
sive vapors. Do not centrifuge such materials (such as chloroform or ethyl alcohol) in this centri-
fuge nor handle or store them within the 30-cm (1-ft) area surrounding the centrifuge.
!

Mechanical Safety
For safe operation of the centrifuge, observe the following:
• Use only the rotors and accessories designed for use in this centrifuge.
• Before starting the centrifuge, make sure that the rotor tie-down nut is securely fastened.
• Do not substitute a metal fastener for the plastic tie-down nut supplied with the rotor. If a
tie-down nut comes off the shaft during centrifugation, the plastic nut furnished will break apart
in the chamber, causing minimal damage to the centrifuge. A loose metal object could substan-
tially damage the rotor, chamber, and lid, and could potentially escape the chamber into the
laboratory, causing personal injury or property damage.
• Do not exceed the maximum rated speed of the rotor in use.
• NEVER attempt to slow or stop the rotor by hand.
• Do not lift or move the centrifuge while the rotor is spinning.
• If a glass tube breaks inside the chamber bowl, be careful when examining or cleaning the
gasket or chamber, as sharp glass fragments may be embedded in their surfaces.
• NEVER attempt to override the door interlock system while the rotor is spinning.
• Maintain a 7.6-cm (3-in.) clearance envelope around the centrifuge while it is running. During
operation do not come within the envelope except to adjust centrifuge controls, if necessary.
Never bring any flammable substances within the 30-cm (1-ft) area surrounding the centrifuge.
Never lean on the centrifuge or place items on the centrifuge while it is operating.
Chemical and Biological Safety
Normal operation may involve the use of solutions and test samples that are pathogenic, toxic, or
radioactive. Such materials should not be used in this centrifuge, however, unless all necessary
safety precautions are taken.
• Observe all cautionary information printed on the original solution containers prior to their use.
• Handle body fluids with care because they can transmit disease. No known test offers complete
assurance that they are free of micro-organisms. Some of the most virulent—Hepatitis (B and
C) and HIV (I–V) viruses, atypical mycobacteria, and certain systemic fungi—further empha-
size the need for aerosol protection.
• Handle other infectious samples according to good laboratory procedures and methods to
prevent spread of disease.
• Because spills may generate aerosols, observe proper safety precautions for aerosol contain-
ment. Use only the appropriate rotors and adapters. Do not run toxic, pathogenic, or
radioactive materials in this centrifuge without taking appropriate safety precautions. Biosafe
containment should be used when Risk Group II materials (as identified in the World Health
Organization Laboratory Biosafety Manual) are handled; materials of a higher group require
more than one level of protection.
• Dispose of all waste solutions according to appropriate environmental health and safety
guidelines.
It is your responsibility to decontaminate the centrifuge and accessories before requesting
service by Beckman Coulter Field Service.

SDLX-IM-8
December 2007
Spinchron™ DLX Benchtop Centrifuge
Instruction Manual
IMBALANCE
ENTER
PULSE
ACCEL
DECEL
RPM
RCF
ROTOR
TIME
STOP
START
FAST
STOP
OPEN
DOOR
SPEED TIME ACC/DEC
™
®
MADEINU.S.A.
© 2007–2009 Beckman Coulter, Inc.

Contents
iii
Page
INTRODUCTION
Certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Scope of Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . viii
CFC-Free Centrifugation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Radio Interference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
Recycling Label . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . x
SECTION 1: DESCRIPTION
Centrifuge Function, Specifications, and Safety Features . . . . . . . . . . 1-1
Centrifuge Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Safety Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Centrifuge Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Rotor Chamber. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
System Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Parameter Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Digital Displays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Available Rotors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
SECTION 2: INSTALLATION REQUIREMENTS
Installation Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Space and Location Requirements. . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Electrical Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Test Run. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Name Rating Plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

iv
Contents
Page
SECTION 3: OPERATION
Run Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Setting Run Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Selecting a Rotor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Setting Run Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Setting Run Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Setting Acceleration and Deceleration Rates . . . . . . . . . . . . . . . . 3-6
Starting a Run. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Changing Parameters During a Run. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Stopping a Run . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Summary of Run Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
SECTION 4: TROUBLESHOOTING
User Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Other Possible Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Accessing the Rotor in Case of Power Failure. . . . . . . . . . . . . . . . . . . 4-4
SECTION 5: CARE AND MAINTENANCE
General Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Decontamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Sterilization and Disinfection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Tube Breakage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3
Storage and Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Returning a Centrifuge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Supply List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Warranty

v
Contents
Page
Figure 1-1. Interior View of the Spinchron DLX Centrifuge Rotor
Chamber . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Figure 2-1. Dimensions of the Spinchron DLX Centrifuge . . . . . . . . . . . . . . . . . . 2-2
Illustrations
Page
Table 3-1. Acceleration and Deceleration Rates (in Minutes:Seconds)
to and from Maximum Speed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Table 4-1. Error Message Chart. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Table 4-2. Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Tables

Introduction
vii
CERTIFICATION
To ensure full system quality, Beckman Coulter Spinchron™ DLX
centrifuges are manufactured in a registered ISO 9001 or 13485
facility. They have been designed and tested to be compliant (when
used with Beckman Coulter rotors) with the laboratory equipment
requirements of applicable regulatory agencies. Declarations of
conformity and certificates of compliance are available at
www.beckmancoulter.com.
International symbols that may be displayed on the centrifuge are
illustrated and described on the inside front cover of this manual.
SCOPE OF MANUAL
This manual is designed to familiarize you with the Beckman Coulter
Spinchron DLX centrifuge, its functions, specifications, operation,
and routine operator care and maintenance. We recommend that you
read this entire manual, especially the SAFETY NOTICE and all
safety-related information, before operating the centrifuge or
performing instrument maintenance.
➠NOTE
A magnetized document holder (964987) is
available, which can be attached to either side
of the centrifuge for convenient storage of this
manual, as well as applicable rotor manuals.
The rotor tie-down torquing bar (356036) and
emergency latch release hex wrench (929317)
can also be kept in the document holder for
easy access.

viii
Introduction
• Section 1 contains system specifications and a brief physical and
functional description of the centrifuge, including the operating
controls and indicators.
• Section 2 provides instructions for installing and connecting the
centrifuge.
• Section 3 contains centrifuge operating procedures. For experi-
enced users, a summary of operating procedures is provided at the
end of the section.
•Section 4 lists possible error messages and/or malfunctions,
together with probable causes and required corrective actions.
• Section 5 contains procedures for routine operator care and main-
tenance, as well as a brief list of supplies and replacement parts.
•A Program Library chart is provided as an appendix at the back of
this manual. You can use this chart to record the parameters of a
run for later duplication of the run conditions.
If the centrifuge is used in a manner other than specified in this
manual, the safety and performance of this equipment could be
impaired. Further, the use of any equipment other than that recom-
mended by Beckman Coulter has not been evaluated for safety. Use
of any equipment not specifically recommended in this manual and/or
the appropriate rotor manual is the sole responsibility of the user.
CONVENTIONS
Certain symbols are used in this manual to call out safety-related and
other important information. These are reproduced and described
below and on the inside of the front cover.
NOTES, CAUTIONS, AND WARNINGS
➠NOTE
Used to call attention to important information
that should be followed during installation, use,
or servicing of this equipment.

ix
Introduction
!CAUTION
Used to indicate a potentially hazardous situa-
tion which, if not avoided, may result in minor or
moderate injury and/or mechanical damage. It
is also used to alert against unsafe practices.
WARNING
!
Used whenever an action or condition may
potentially cause personal injury or loss of
life. Mechanical damage may also result.
WARNING
Indicates high voltage or risk of electric
shock. Refer servicing of all areas displaying
either symbol to service personnel.
TYPOGRAPHIC CONVENTIONS
Certain typographic conventions are used throughout this manual to
distinguish names of user interface components, such as keys and
displays.
•Key names (for example, [START] or [ENTER]) appear in brackets.
•Display names (for example, TIME or SPEED) appear in bold
type.
•Cursor keys, used to increment values up or down when setting
parameters, are shown as up and down arrows (▲ and ▼).
CFC-FREE CENTRIFUGATION
To ensure minimal environmental impact, no CFCs are used in the
manufacture or operation of Spinchron DLX centrifuges.
CFC

x
Introduction
RADIO INTERFERENCE
This equipment has been tested and found to comply with the limits
for a Class A digital device, pursuant to Part 15 of FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environ-
ment. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in accordance with
this instruction manual, may cause interference to radio communica-
tions. Operation of this equipment in a residential area is likely to
cause interference, in which case the user will be required to correct
the interference at his own expense.
CANADIAN REGULATIONS
This equipment does not exceed the Class A limits for radio noise
emissions from digital apparatus as set out in the radio interference
regulations of the Canadian Department of Communications.
Le présent appareil numérique n’émet pas de bruits radioélectriques
dépassant les limites applicables aux appareils numériques de Classe
A prescrites dans le reglement sur le brouillage radioelectrique édicté
par le Ministère des Communications du Canada.
RECYCLING LABEL
This symbol is required in accordance with the Waste Electrical and
Electronic Equipment (WEEE) Directive of the European Union. The
presence of this marking on the product indicates:
1) the device was put on the European market after August 13, 2005
and
2) the device is not to be disposed via the municipal waste collection
system of any member state of the European Union.
It is very important that customers understand and follow all laws
regarding the proper decontamination and safe disposal of electrical
equipment. For Beckman Coulter products bearing this label please
contact your dealer or local Beckman Coulter office for details on the
take back program that will facilitate the proper collection, treatment,
recovery, recycling and safe disposal of the device.
A28219-AA
Note: On the instrument, the
triangle background is yellow
rather than gray.

1
Description
1-1
CENTRIFUGE FUNCTION, SPECIFICATIONS, AND SAFETY FEATURES
CENTRIFUGE FUNCTION
The Beckman Coulter Spinchron DLX is a nonrefrigerated compact
benchtop centrifuge that generates centrifugal forces required for a
wide variety of applications. Together with the Beckman Coulter
rotors designed for use in this centrifuge, the centrifuge applications
include:
•Routine processing such as sample preparations, pelleting, extrac-
tions, purifications, concentrations, phase separations, receptor
binding, and column centrifugations.
• Processing large numbers of small-volume samples in multiwell
plates for concentrating tissue-culture cells, cloning and replicate
studies, in-vitro cytotoxicity studies, receptor binding, and genetic
engineering experimentation.
• Rapid sedimentation of protein precipitates, large particles, and
cell debris.
• Binding studies and separation of whole blood.
• Cell isolation.
The centrifuge is microprocessor-controlled, providing interactive
operation. The centrifuge design features a brushless induction drive
system, program memory that can repeat the previously used run
parameters, and a choice of acceleration and deceleration rates. User
messages alert the operator to conditions that may need attention.

1-2
Description
SPECIFICATIONS
Only values with tolerances or limits are guaranteed data. Values
without tolerances are informative data, without guarantee.
Speed
Setting range . . . . . . . . . . . . . 0 to 3750 rpm (in 100-rpm increments)
or equivalent RCF
Time
Setting range . . . . . . . . . . . . . . . . . . 1 min to 9 hr 59 min (timed run),
or continuous,
or PULSE
Display (timed run) . . . . . . . . . . . . . . . . . . . . . . . . run time remaining
Display (continuous run) . . . . . . . . . . . . . . ∞ symbol and elapsed time
Acceleration . . . . . . . . . . . . . . . . . . . . . . . . . . . . nine acceleration profiles
Deceleration . . . . . . . . . . . . . . . . . . . . . . . . . . . . nine deceleration profiles
Dimensions
Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54.6 cm (21.5 in.)
Depth, overall. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66.0 cm (26.0 in.)
Depth at base . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58.4 cm (23.0 in.)
Height, door closed . . . . . . . . . . . . . . . . . . . . . . . . . 40.6 cm (16.0 in.)
Height, door open. . . . . . . . . . . . . . . . . . . . . . . . . . . 96.8 cm (38.1 in.)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65.4 kg (144.0 lb)
Surface finish
Instrument housing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . urethane paint
Control panel overlay. . . . . . . . . . . . . . . . . . . . . coated polycarbonate
Electrical supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class I
Clearances required (sides and rear) . . . . . . . . . . . . . . . . . . 7.6 cm (3.0 in.)
Maximum heat dissipation into room
under steady-state conditions . . . . . . . . . . . . . . . 0.9 kW (3701 Btu/hr)
Ambient temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 to 35°C
Humidity limitation. . . . . . . . . . . . . . . . . . . . . . . . . <95% (noncondensing)
Noise level 1 m (3.3 ft) in front of centrifuge . . . . . . . . . . . . . . . . . ≤62 dBa
Installation (overvoltage) category . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II
Pollution degree. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2*
_______________
* Normally only nonconductive pollution occurs; occasionally, however, a temporary
conductivity caused by condensation must be expected.
SAFETY FEATURES
The Spinchron DLX centrifuge has been designed and tested to
operate safely indoors at altitudes up to 2 000 m (6 562 ft). Safety
features include the following:
•The door has an electromechanical door-locking mechanism and a
secondary (manual) lock to prevent operator contact with spinning

1-3
Description
rotors. When the door is closed it locks automatically. It can be
unlocked only by pressing the [OPEN DOOR] key, and opened only
when the power is on, the rotor is at rest, and the manual lock is in
the unlocked position. Two independent monitoring systems
prevent the door from opening if the rotor is spinning.
• A steel barrier ring surrounds the aluminum rotor chamber to
provide full operator protection.
•An imbalance detector monitors the rotor during the run, causing
automatic shutdown if rotor loads are severely out of balance. At
low speeds, an incorrectly loaded rotor can cause imbalance. Rotor
instability can also occur if the centrifuge is moved while running,
or if it is not resting on a level surface.
• An anchoring system is provided to secure the centrifuge in place.
The anchoring system is designed to minimize the possibility of
injury or damage that could result from centrifuge movement in
the event of a major rotor mishap.
CENTRIFUGE CHASSIS
HOUSING
The centrifuge housing is made of sheet steel over a steel chassis and
is finished with urethane paint. The control panel overlay is made of
coated polycarbonate. Polyvinyl chloride lines the interior walls of
the centrifuge housing for sound and temperature insulation.
DOOR
The structural steel door has two filtered air-intake ports for rotor
cooling. An electromechanical door lock system, together with a
manual lock, prevents run initiation unless the door is closed and
latched. When a run is in progress, the door locks automatically and
can be opened only when the power is on, the rotor is virtually
stopped (spinning less than 40 rpm), and the lock is in the unlocked
position. (A light-emitting diode [LED] on the [OPEN DOOR] key
lights up when the door can be opened.) In the event of a power
failure, the door lock can be manually tripped for sample recovery
(see Section 4, TROUBLESHOOTING).

1-4
Description
ROTOR CHAMBER
The aluminum rotor chamber (Figure 1-1) is coated with a chemical-
resistant epoxy finish. The drive shaft (1) and neoprene rubber boot
(2) surrounding the drive shaft are visible in the chamber bottom.
Aneoprene gasket (3) around the chamber top assures sealing.
(Centrifuge gaskets have not been designed as bioseals for aerosol
containment.)
During centrifugation, the rotor movement draws air through the
filtered air-intake ports in the door into the chamber bowl, where it
circulates around the rotor. Holes in the side of the bowl (4) allow air
to flow out to the exhaust ports beneath the centrifuge. This air flow
provides cooling for the rotor.
Figure 1-1. Interior View of the Spinchron DLX Centrifuge Rotor Chamber
DRIVE
The asynchronous three-phase direct-drive motor is brushless for
clean, quiet operation. A tie-down nut is used to attach the rotor to the
drive shaft. The resilient suspension ensures that loads will not be
disturbed by vibration, and prevents damage to the drive shaft if an
imbalance occurs during centrifugation. Maximum braking may be
3
2
4
1

1-5
Description
selected to reduce deceleration time, allowing fast processing of
samples; alternately, delicate gradients may be preserved using
slower deceleration.
CONTROL PANEL
Mounted at an angle on the centrifuge front for easy visibility and
access, the control panel comprises touch keys—system keys and
parameter keys—and digital displays. An IMBALANCE LED at
the lower left of the panel flashes if the rotor load is severely out of
balance.
The power switch, a two-position rocker switch (off—O; on—I), is
mounted on the right side of the centrifuge.
SYSTEM KEYS
Centrifuge operation is controlled through the system keys. Each
system key (except [PULSE]) has an LED in the upper left corner that
lights up to indicate that the key can be activated.
[OPEN DOOR]Unlatches the electromechanical lock and allows the door to be
opened (when the manual lock is in the unlocked position); the
centrifuge will accept this command only when the rotor is
completely stopped and the LED is lit.
[FAST STOP]Causes the centrifuge to decelerate to a complete stop at the
maximum rate; deceleration cannot be interrupted—the centrifuge
can only be restarted after the rotor stops and the door is opened
and closed.
SPEED TIME ACC/DEC
IMBALANCE
ENTER
PULSE
ACCEL
DECEL
RPM RCF ROTOR TIME
STOP START
FAST
STOP
OPEN
DOOR

1-6
Description
[STOP]When pressed, the centrifuge decelerates to a complete stop
according to the selected deceleration rate, deceleration can be
terminated and the centrifuge restarted by pressing [START] again.
[START]Causes a timed or continuous run to begin; can also be used to abort
deceleration and restart the centrifuge.
[PULSE]Causes the rotor to accelerate to set speed for short-duration runs (as
long as the key is pressed). Deceleration, at maximum rate, begins
when the key is released.
PARAMETER KEYS
Parameter keys are used to set run parameters (speed, rotor, time,
acceleration, and deceleration rate). Each parameter key (except for
the cursor keys) has an LED in the upper left corner that lights up to
indicate operational readiness. The LEDs also blink if an incorrect
parameter is entered.
[RPM]Causes the last digit in the SPEED display (0) to flash, indicating that
speed can be entered in revolutions per minute (rpm).
[RCF]Selects speed setting by RCF; the corresponding rpm is automatically
calculated and displayed during the run. If this key is pressed during
the run, the SPEED display shows the RCF value.
[ROTOR]When this key is pressed the number of the rotor used in the previous
run is shown on the SPEED display. The list can be scrolled through,
using the cursor keys, to select a rotor.
SPEED TIME ACC/DEC
IMBALANCE
ENTER
PULSE
ACCEL
DECEL
RPM RCF ROTOR TIME
STOP START
FAST
STOP
OPEN
DOOR