VWR avantor MICRO STAR 30R User manual

___
Version 03 Issue 11/2021
Instruction manual
VWR®MICRO STAR 30R
EU cat. no 521-2574 MICRO STAR 30R inclusive angle rotor RA 24/2
and aerosol tight rotor lid
521-2575 MICRO STAR 30R without rotor

2vwr.com I EN Instruction manual VWR®MICRO STAR 30R
Legal address of Manufacturer
Europe
VWR International bv,
Researchpark Haasrode 2020
Geldenaaksebaan 464
B-3001 Leuven
[phone]
be.vwr.com
UK Importer:
VWR International Ltd
Hunter Boulevard, Magna Park
Lutterworth, Leicestershire, LE17 4XN
uk.vwr.com
Country of Origin
SLOVENIA
PREFACE
Dear customer,
Congratulations for purchasing our centrifuge MICRO STAR 30R. You have selected a reliable
device which combines many advantages.
A wide selection of programming options and electronic control allow trouble-free operation. The
brushless motor provides quiet, maintenance-free operation without any carbon dust pollution.
Your device is equipped with user-friendly functions, which makes the operation and settings
easier for you. Built-in safety functions prevent incorrect usage and they control the complete
operation of the centrifuge.
The centrifuge has the functionality to save programs. You can save up to 100 different data
sets in the memory. The centrifuge always keeps the last run program in its memory for an
unlimited amount of time, allowing the program to be restarted at any time - even if the
centrifuge was turned off in-between. All important operation parameters can be seen at a
glance on the displays.
The settings are executed via a knob and the keys on the control panel.
The centrifuge and its interior are easy to clean.
We thank you for your confidence and we hope you enjoy your new centrifuge.

3vwr.com I EN Instruction manual VWR®MICRO STAR 30R
TABLE OF CONTENTS
Page
PREFACE ............................................................................................................................................2
TABLE OF CONTENTS.......................................................................................................................3
1. SAFETY INFORMATION.................................................................................................................4
1.1 WARNING SYMBOLS....................................................................................................................4
1.2 SAFETY INSTRUCTIONS.............................................................................................................4
2. INTRODUCTION..............................................................................................................................5
2.1 INTENDED USE.............................................................................................................................5
2.2 DELIVERY CONTENT AND OPTIONAL EQUIPMENT................................................................5
2.3 UNPACKING..................................................................................................................................5
2.4 INSTALLING THE CENTRIFUGE .................................................................................................6
2.5 OVERALL VIEW.............................................................................................................................6
3. OPERATION....................................................................................................................................7
3.1 CONTROL PANEL.........................................................................................................................7
3.2 KNOB AND KEY FUNCTIONS......................................................................................................8
3.3 TURNING ON THE CENTRIFUGE................................................................................................9
3.4 OPENING AND CLOSING OF THE LID......................................................................................10
3.5 ROTOR MOUNTING AND DISMOUNTING................................................................................10
3.6 IMBALANCE INDICATOR............................................................................................................11
3.7 PRE-SELECTING TEMPERATURE............................................................................................12
3.8 PRE-SELECTING SPEED/RCF...................................................................................................12
3.9 PRE-SELECTING RUN TIME, ACCELERATION AND BRAKING LEVEL.................................13
3.10 PROGRAM SETTING................................................................................................................14
3.11 STARTING AND STOPPING THE CENTRIFUGE....................................................................15
3.12 ROTOR RECOGNITION............................................................................................................15
3.13 DISPLAY OF THE SET VALUES DURING THE RUN..............................................................15
3.14 FAST SPIN.................................................................................................................................15
3.15 FAST COOL FUNCTION...........................................................................................................16
3.16 RESET OF LID LATCH..............................................................................................................16
3.17 AUXILIARY LID RELEASE........................................................................................................16
3.18 AUTOMATIC BRAKING AFTER POWER RESTORATION......................................................16
3.19 TEMPERATURE CORRECTION...............................................................................................17
4. MAINTENANCE AND CARE.........................................................................................................17
4.1 REGULAR SERVICE...................................................................................................................17
4.2 CLEANING THE CENTRIFUGE..................................................................................................17
4.3 CLEANING THE ROTOR.............................................................................................................18
4.4 ROTOR STERILIZATION ............................................................................................................18
4.5 SHIPPING ....................................................................................................................................18
5. TROUBLESHOOTING...................................................................................................................19
5.1 ERROR MESSAGES...................................................................................................................19
5.2 EXIT FROM ERROR DISPLAY...................................................................................................20
5.3 USER'S PARAMETERS ..............................................................................................................21
5.4 REPLACING THE CENTRIFUGE FUSES...................................................................................22
6. TECHNICAL DATA........................................................................................................................22
7. CALCULATIONS...........................................................................................................................23
7.1 CALCULATION OF CENTRIFUGAL FORCE..............................................................................23
7.2 CALCULATION OF MAXIMUM PERMITTED ROTOR SPEED..................................................23
8. TECHNICAL SERVICE..................................................................................................................23
9. WARRANTY...................................................................................................................................24
10. COMPLIANCE WITH LOCAL LAWS AND REGULATIONS.....................................................24
11. EQUIPMENT DISPOSAL ............................................................................................................24
LOCAL VWR OFFICES IN EUROPE AND ASIA PACIFIC..............................................................25

4vwr.com I EN Instruction manual VWR®MICRO STAR 30R
1. SAFETY INFORMATION
Before using the machine, make sure to read and understand this manual thoroughly. Keep the
manual close to the machine, easily accessible to all the users.
Improper operation can cause injury to persons or damage to the equipment.
1.1 WARNING SYMBOLS
The following are the warning symbols that are used in this manual.
This symbol indicates a potential risk and alerts you to proceed with caution.
1.2 SAFETY INSTRUCTIONS
In the interest of your own personal safety, always observe the following safety instructions:
•Do not use rotors and buckets, which show clear signs of corrosion or mechanical defects.
Please check the accessories at regular intervals.
•Always load the rotor with the same test tubes on all positions or symmetrically with the pairs of
the same test tubes. To prevent negative consequences of unbalanced rotor, like damaged
bearings and motor axle, or inadequate results of centrifugation, equal or equally loaded test
tubes must be symmetrically arranged according to the rotation axis.
•Please use only the original accessories for centrifugation.
•Do not move or knock the centrifuge during operation!
•Repairs must only be performed by an authorized service technician.
•The centrifuge may only be used for specified applications. It may not be used in a
hazardous or potentially flammable environment or for centrifugation of explosive or highly
reactive substances.
•When handling toxic, aggressive or radioactive materials, observe national regulations or
regulations defined by World Health Organization.
•Fluids or materials used for cleaning and disinfecting should be disposed of in accordance
with approved laboratory regulations.
•If any liquids are spilled in the rotor chamber, on the rotor or accessories, the surfaces must
be cleaned immediately. You can use a damp cloth and mild soap solution. This is
particularly important for the cleaning of the bores of the fixed-angle rotors.
•Density of the liquid must not be exceeded 1.2 g/ml at maximum rotational speed.
•During longer spin times, test tubes may heat up. Observe the requirements and regulations
specified by test tube manufacturer.
•The use of organic solvents and reagents may have adverse effect on the stability of plastic
test tubes.
•Rotors are high-grade components which are subjected to extreme mechanical strain.
Aluminium rotors are protected against corrosion.
•Please ensure that the rotors are protected from mechanical damage. Even slight scratches
and cracks can cause severe inner damage to the rotor material.
•Please clean your rotors regularly using a neutral cleaning liquid (e.g. Extran). This will
protect the rotors and maintain their service life.

5vwr.com I EN Instruction manual VWR®MICRO STAR 30R
2. INTRODUCTION
2.1 INTENDED USE
Centrifuge MICRO STAR 30R is a universal laboratory refrigerating centrifuge. It is designed for
use in medical, scientific and industrial laboratories, for separating the substances with different
specific densities, by centrifugal force. In particular, it is intended for preparation of human
samples (body fluids), in approved test tubes, before further analysis. Not intended for in vitro
diagnostic use. The maximum rotational speed of 18,000 RPM gives the centrifugal force of
31,150 xg.
2.2 DELIVERY CONTENT AND OPTIONAL EQUIPMENT
The following is enclosed with the centrifuge:
1 Instruction manual
1 Hexagonal rotor key (magnetic key holder on the back of the device, see page 7)
1 Power cord
1 Angle rotor RA 24/2 with aerosol tight lid for 24 x 1.5/2 ml tubes (only with ECN 521-2574)
Optional rotors and accessories:
521-2576 Angle rotor RA 24/2, 24 x 1.5/2 ml micro tubes with aerosol tight lid, max. RCF
31,150 xg, max. speed 18,000 RPM
521-2577 Angle rotor RA 16/5, 16 x 5 ml micro tubes with aerosol tight lid, max. RCF
21,000 xg, max. speed 14,000 RPM
521-3377 Angle rotor RA 8/15, 8 x 15 ml conical, max. RCF 4,400 xg, max. speed 6,000 RPM
521-3379 Adapter 5 ml, 13 x 75 mm (PK 1) for rotor RA 8/15, max. RCF 3,566 xg
521-3380 Angle rotor RA 6/50, 6 x 50 ml conical, max. RCF 4,400 xg, max. speed 6,000 RPM
521-2585 Adapter 15 ml conical (set of 6), for rotor RA 6/50
521-2586 Swing-out rotor for 4 microplates with 2 carriers, max. RCF 2,200 xg, max. speed
5,000 RPM
521-2587 Swing-out rotor RS 6/12 with buckets, 6 x 12 ml, max. RCF 2,500 xg, max. speed
4,400 RPM
2.3 UNPACKING
The weight of the centrifuge is 50 kg. To prevent possible injuries, at least two people
should lift and carry the centrifuge by holding it at the bottom from opposite sides.
Open the carton box. Take out the accessories and remove the packaging material. Reach with
your hands under the centrifuge and lift it from the box together with another person.
When lifting the centrifuge, never hold it by the front or top plastic part of the
housing or by the lid, as the appliance may get damaged!
Retain the packaging material for any subsequent transport or storage, which are allowed only in
the original packaging.

6vwr.com I EN Instruction manual VWR®MICRO STAR 30R
2.4 INSTALLING THE CENTRIFUGE
The centrifuge should only be operated indoors. Place the centrifuge on a stable, solid,
horizontal and clean surface, without vibrations. Make sure that the centrifuge is not exposed to
direct sunlight. To ensure sufficient ventilation, there should be enough clearance on all sides of
the centrifuge. It must be far enough away from the wall and other devices. According to
recommendations of the EN 61010-2-020 standard, a safety clearance of 30 cm should be
observed around the centrifuge during operation. Please remove all objects from this area.
If the centrifuge isn’t levelled, imbalances can occur and the centrifuge can be damaged. Do not
place anything under the centrifuge feet to level the centrifuge.
After installation you have to wait for at least four hours, before connecting the
centrifuge to the mains power supply. This prevents possible damage to the
compressor, which may result from improper transport.
This also prevents damage to electronic components due to condensation, which can
occur, when you bring the device from a cold environment to a warm environment.
Before connecting the centrifuge to the mains power supply, check that the mains voltage and
frequency correspond to the specifications on the name label of the centrifuge. The mains cable
of the centrifuge may only be connected to a properly grounded wall socket.
To disconnect the mains supply from the centrifuge in the event of malfunction, an emergency
switch separate from the centrifuge must be available. This switch should be outside the room,
where the centrifuge is installed, or next to the entrance to the room.
2.5 OVERALL VIEW
Main parts of the centrifuge are designated on the following pictures:
Window
Lid
Main switch
Control
panel

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3. OPERATION
Before using the centrifuge for the first time, familiarize yourself with the control panel and the
functions of the knob and keys/icons.
3.1 CONTROL PANEL
1
Temperature display
2
TEMPERATURE key
3
Indicator for selection of rotational speed (RPM)
4
Display for rotational speed (RPM) or centrifugal force (RCF)
5
Indicator for selection of centrifugal force (RCF)
6
SPEED key
7
Display for time (TIME), acceleration level ( ) and braking level ( )
8
Indicator for selection of time (TIME)
9
Indicator for selection of acceleration level ( )
Name label
Foot
Auxiliary
lid release
1
2
8
14
17
3
6
5
4
7
12
15
16
10
9
11
13
18
Mains socket
Fuse compartment
Rotor key
Magnets

8vwr.com I EN Instruction manual VWR®MICRO STAR 30R
10
TIME key
11
Indicator for selection of braking level ( )
12
Program display
13
PROGRAM key
14
Knob
15
FAST COOL key
16
LID key
17
START key
18
STOP key
3.2 KNOB AND KEY FUNCTIONS
(Knob)
By rotating the knob, you change the values of the parameters on display. By
rotating the knob clockwise, the value increases, and by rotating it counter-
clockwise, the value decreases. By pressing on the knob, you confirm the new
value for the parameter.
(TEMPERATURE)
By pressing this key, you can set the temperature. The key lights up. Set new
temperature by rotating the knob and confirm it by pressing on the knob. The
key light will then turn off.
(SPEED)
By pressing this key, you can set the rotational speed (RPM) or centrifugal
force (RCF). The key lights up. By repeated pressings on this key, you select
which parameter will be set. When indicator RPM is lit, you can set the
rotational speed, and when indicator RCF is lit, you can set the centrifugal
force. Set new values of both parameters by rotating the knob and confirm
them by pressing on the knob. The key light will then turn off.
(TIME)
By pressing this key, you can set the time (TIME), acceleration level ( ) and
braking level ( ). The key lights up. By repeated pressings on this key, you
select which parameter will be set. When indicator TIME is lit, you can set the
run time, when indicator is lit, you can set the acceleration level, and when
indicator is lit, you can set the braking level. Set new values of all
parameters by rotating the knob and confirm them by pressing on the knob.
The key light will then turn off.
(PROGRAM)
By pressing this key, you can set the programs. The key lights up. Select new
program by rotating the knob and confirm it by pressing on the knob. The key
light will then turn off.
If you want to change the values of parameters of an existing program, set the
values of individual parameters as described above, when this key is lit.
(FAST COOL)
By pressing this key, you turn on the fast cool function. The key lights up.
Rotor starts to run automatically with 8,000 RPM. Fast cool function cools
down the centrifugal chamber to the set temperature. When the temperature is
reached, display for rotational speed shows message READY, and the key
light will then turn off.

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(LID)
SHORT PRESS:
By pressing this key, you open the lid of the centrifuge. When the lid opens,
the key light turns off. When closing the lid, press it down with your hands,
until it locks up. When the lid is closed, the key lights up.
The key light turns off during the run of the centrifuge and thus indicates that
you can't open the lid during the run.
LONG PRESS:
By pressing and holding this key, you set the lid latch to initial position. This is
needed in case of power failure during the opening of the lid, when lid latch
motor stops in undefined position. When power returns, it could happen that
you can't open or close the lid. If this happens, press the key for approximately
two seconds, until you hear the sound of lid latch motor, then release it. After
that, you will be able to open and close the lid normally.
(START)
SHORT PRESS:
By pressing this key, you start the run of the centrifuge. The key lights up and
thus indicates that the centrifuge is running.
At the end of the set running time or manual stopping of the centrifuge, the
braking procedure of the rotor is activated and the centrifuge stops. The next
run is possible, when the rotor stops completely.
LONG PRESS:
By pressing and holding this key, you perform the fast spin. The centrifuge
runs for as long as you hold the key pressed. Time of run in seconds is
displayed on time display. The acceleration and braking levels are fixed to 9
(the highest), and they can't be changed. When you release the key, the
braking procedure of the rotor is activated and the centrifuge stops.
(STOP)
By pressing this key, you stop the run of the centrifuge. The key lights up and
thus indicates that the centrifuge is stopping. The braking procedure of the
rotor is activated and the centrifuge stops. Until the centrifuge stops
completely, the START key remains lit, thus indicating that the rotor is still
turning.
3.3 TURNING ON THE CENTRIFUGE
Use the enclosed power cord to connect the centrifuge to the mains power supply.
Turn on the main switch, which is located on the front of the right side of the centrifuge.
All segments (eights) are displayed on all displays at first, and all the keys and indicators light up
simultaneously. Then centrifuge model (C-30R) and program version (X.XX) are displayed, then
lines, and finally the values of operation parameters are displayed.
The values of operation parameters (temperature, rotational speed, centrifugal force, run time,
acceleration and braking level) are automatically set to the last used values.

10 vwr.com I EN Instruction manual VWR®MICRO STAR 30R
3.4 OPENING AND CLOSING OF THE LID
By pressing the LID key, you open the lid of the centrifuge. When the lid is
open, the key light turns off.
When closing the lid, press it down with your hands, until it locks up. When the
lid is closed, the key lights up.
The key light turns off during the run of the centrifuge and thus indicates that
you can't open the lid during the run.
Always open the centrifuge lid completely, to prevent it from falling!
When closing the lid, make sure to always place your fingers on the top side of
the lid and never in the gap between the lid and the housing of the centrifuge,
otherwise you could crush your fingers!
3.5 ROTOR MOUNTING AND DISMOUNTING
Before attaching the rotor on the motor axle, make sure that axle and rotor are clean and
undamaged. Wipe all fixing surfaces (motor axle and rotor cone) with clean soft cloth.
Thus you will avoid potential damages to the axle and motor.
•Mount the rotor on the motor axle and firmly tighten the rotor nut by turning it clockwise,
using the supplied hexagonal rotor key.
•To dismount the rotor, turn the rotor nut counter-clockwise, using the hexagonal rotor key
and then remove the rotor.
Do not use the rotors, rotor lids and test tubes, which are mechanically or
chemically damaged or with visible corrosion defects!
The rotor and the rotor lid must always be securely fastened. Do not begin with
centrifugation before the rotor has been securely fastened!

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3.6 IMBALANCE INDICATOR
The centrifuge is fitted with an imbalance detector, to ensure safety.
Imbalance at high speed may indicate a tube breakage or leak or rotor crash. Therefore
additional care should be taken depending on the samples loaded.
You must always load the rotor with test tubes symmetrically. You may only use approved test
tubes. Weight difference of the samples in test tubes should be as low as possible in order to
avoid potential damages to the motor and to minimize running noise and vibration.
Following are examples of correctly and wrongly loaded rotors:
CORRECT CORRECT CORRECT WRONG
CORRECT CORRECT CORRECT
CORRECT WRONG WRONG
If an imbalance is detected at speeds higher than approx. 300 RPM, the
centrifuge will automatically stop and an error message IMBAL OUR will be
displayed.

12 vwr.com I EN Instruction manual VWR®MICRO STAR 30R
3.7 PRE-SELECTING TEMPERATURE
The temperature can be set from -9 °C to 40 °C, in steps of 1 °C.
If the difference between actual and set temperature is more than ±3 °C, the temperature display
will flash.
By pressing the TEMPERATURE key, you can set the temperature. The key
lights up and the current set temperature is displayed.
Set new temperature by rotating the knob and confirm it by pressing on the
knob. The key light turns off and the actual temperature is displayed.
NOTE:
To achieve very low temperatures, it is necessary to appropriately reduce the rotational speed of
the rotor (e.g.: If you set the temperature to -9 °C, you may not be able to use the max. speed of
18,000 RPM, if you want the centrifuge to reach this very low temperature).
3.8 PRE-SELECTING SPEED/RCF
By pressing the SPEED key, you can set the rotational speed (RPM) and centrifugal force
(RCF). The key lights up. By repeated pressings on this key, you select which parameter will
be set. When indicator RPM is lit, you can set the rotational speed, and when indicator RCF is
lit, you can set the centrifugal force. Set new values of both parameters by rotating the knob
and confirm them by pressing on the knob. The key light will then turn off.
•Rotational speed (indicator RPM is lit)
Rotational speed can be set from 200 to 18,000 RPM in steps of
10 RPM.
The maximum rotational speed is automatically set according to the
rotor type in use.
•Relative Centrifugal Force (indicator RCF is lit)
Relative centrifugal force can be set from 5 to 31,150 xg in steps of
10 xg.
Relative centrifugal force is calculated according to the radius of
used rotor, so the minimum and maximum forces are dependent on
the rotor type.

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3.9 PRE-SELECTING RUN TIME, ACCELERATION AND BRAKING LEVEL
By pressing the TIME key, you can set the time (TIME), acceleration level ( ) and braking
level ( ). The key lights up. By repeated pressings on this key, you select which parameter
will be set. When indicator TIME is lit, you can set the run time, when indicator is lit, you can
set the acceleration level, and when indicator is lit, you can set the braking level. Set new
values of all parameters by rotating the knob and confirm them by pressing on the knob. The
key light will then turn off.
•Run time
Run time can be set between 0.10 and 99.5 minutes. Time setting from
0.10 to 9.59 minutes is possible in 1 second steps. Between 10.0 and 99.5
minutes the setting is possible in 10 second steps. By rotating the knob
either clockwise until after 99.5 is displayed, or counter-clockwise until after
0.10 is displayed, you can set continuous operation (HLd on display).
NOTE: 0.10 = 10 s, 9.59 = 9 min 59 s, 10.0 = 10 min, 99.5 = 99 min 50 s
•Acceleration level (AcX)
Acceleration level can be set from 0 to 9. Level 0 means very slow
acceleration, level 9 very fast acceleration.
•Braking level (brX)
Braking level can be set from 0 to 9. Level 0 means stopping without
braking, level 9 maximum braking.
NOTE:
All the operation parameters can be changed during the operation of the centrifuge, and it starts
to work with the new settings after that.
Changing of run time during the operation:
You should be aware, that when you extend run time, the difference between newly set and
originally set time is added to current time, and when you shorten run time, the difference is
subtracted.
Example: The centrifuge started with time set to 10 minutes. It has been running for 3 minutes.
Then you changed the time to 5 minutes. The centrifuge will run for another 2
minutes.

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3.10 PROGRAM SETTING
You can save 100 programs, with different operational parameters, in the
centrifuge memory.
NOTE:
You can cancel the procedure for program setting by pressing the STOP key
and return to stand-by mode without confirming the data.
If you want to use the existing program, follow the next procedure:
By pressing the PROGRAM key, you can set and select programs. The key lights up. Select
new program by rotating the knob and confirm it by pressing on the knob. The key light turns
off.
Operation parameters set in selected program are displayed on display.
If you want to change the existing program, follow the next procedure:
By pressing the PROGRAM key, you can set the programs. The key lights up. Select the
program that you want to change, by rotating the knob. While the PROGRAM key is lit, set the
values of individual operation parameters (temperature, rotational speed, centrifugal force, run
time, acceleration level and braking level) using the procedures, described in the previous
chapters.
If you want to change another program, select it by rotating the knob, and set the values of
individual operation parameters for this program. Otherwise skip this step.
By rotating the knob, select a program that you want to use and confirm it by pressing on the
knob. The light for the PROGRAM key will then turn off.
Operation parameters set in selected program are displayed on display.
The following table shows factory preset values of operation parameters for all 100 programs:
Program
Temperature
(°C)
Rotational
speed
(RPM)
Run time
(min)
Acceleration
level
(AcX)
Braking level
(brX)
0
4
13,000
10
6
6
1
4
10,000
2
9
9
2
4
1,500
10
6
6
3
4
3,000
10
9
9
4
10
4,000
3
6
6
5
20
15,000
3
9
9
6
4
4,000
3
6
6
7
20
8,000
5
9
9
8
20
5,000
10
6
6
9
4
16,000
10
9
9
10
25
1,200
10
5
5
11
20
3,000
5
5
5
⁞
20
3,000
5
5
5
99
20
3,000
5
5
5

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3.11 STARTING AND STOPPING THE CENTRIFUGE
Before starting the centrifuge, turn on the main switch, open the centrifuge lid, insert the rotor
and load it with test tubes, close the centrifuge lid and set the operation parameters or select a
suitable program.
By pressing the START key, you start the run of the centrifuge. The key lights
up and thus indicates that the centrifuge is running.
After the expiration of set running time or after manual stopping of the
centrifuge, the braking procedure of the rotor is activated and the centrifuge
stops. The next run is possible, when the rotor stops completely.
By pressing the STOP key, you stop the run of the centrifuge. The key lights
up and thus indicates that the centrifuge is stopping. The braking procedure of
the rotor is activated and the centrifuge stops. Until the centrifuge stops
completely, START key is lit, thus indicating that the rotor is still turning.
Do not move or knock the centrifuge during operation!
3.12 ROTOR RECOGNITION
Rotor recognition is executed automatically, every time when the centrifuge starts. After rotor
change, the centrifuge stops and display shows ROTOR CHG. Press the STOP key to clear this
message. New maximum rotational speed is automatically set, to correspond with the inserted
rotor. To start the centrifuge again, press the START key.
3.13 DISPLAY OF THE SET VALUES DURING THE RUN
During the run, the centrifuge shows the current values of the operation parameters on displays.
If you wish to check the set values of the parameters, select the desired parameter by pressing
the corresponding key. The key lights up. Display shows the set value of the parameter. To exit
the display of the set values, press on the knob. The key light will then turn off.
3.14 FAST SPIN
By pressing and holding the START key, you perform the fast spin. The
centrifuge will run as long as you hold the key pressed. Time of run is
displayed on time display, and the program display shows FS (fast spin). The
acceleration and braking levels are fixed to 9 (the highest), and they can't be
changed. When you release the key, the braking procedure of the rotor is
activated and the centrifuge stops.

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3.15 FAST COOL FUNCTION
By pressing the FAST COOL key, you turn on the fast cool function. The key lights
up. START key lights up also. The program display shows FC (fast cool). Rotor
RA 24/2 and RA16/5 starts to run automatically with 8,000 RPM. Fast cool
function cools down the centrifugal chamber to the set temperature. When the
temperature is reached, display for rotational speed shows message READY, and
the light for the FAST COOL key turns off. Rotor keeps on running and START
key is still lit, until you stop the centrifuge by pressing the STOP key. If you don't
stop the centrifuge manually, fast cool function turns off automatically after 1 hour.
NOTE:
If maximum speed of inserted rotor is lower than 8,000 RPM, the rotor will be running with the
maximum allowed speed for that rotor.
3.16 RESET OF LID LATCH
By pressing and holding the LID key, you set the lid latch to initial position. This is
needed in the case of power failure during the opening of the lid, when lid latch
motor stops in undefined position. When power returns, it could happen that you
can't open or close the lid. If this happens, press the key for approximately two
seconds, until you hear the sound of lid latch motor, then release it. After that, you
will be able to open and close the lid normally.
3.17 AUXILIARY LID RELEASE
In case of power failure, the lid can be opened manually. If power failure occurs during the operation
of the centrifuge, the rotor may continue rotating for several minutes, before it stops.
Before auxiliary lid release, turn off the main switch of the centrifuge and wait until
rotor fully stops. Check this by looking through the lid window. Otherwise, injury
from rotating rotor may occur!
On the underside of the centrifuge, by the front left foot, there is a plastic plug, which you pull out of
the hole. There is a string fastened to the plug. Pull the string to open the lid of the centrifuge. Then
insert the string and the plug back in the hole.
3.18 AUTOMATIC BRAKING AFTER POWER RESTORATION
If power failure occurs during the operation of the centrifuge, the rotor may continue rotating for
several minutes, before it stops. When power returns, the centrifuge checks if the rotor is still rotating.
If it is still rotating then the display shows message Error brX (X is a number from 0 to 9 and
represents the set braking level). The centrifuge begins with the automatic rotor braking, which is
performed with preset braking level. When rotor stops, display shows error message MAINS INT and
thus warns you, that power failure occurred during operation and the centrifugation was interrupted.
By pressing the STOP key, you exit from error display and go back to stand-by mode. You can use
the centrifuge again.

17 vwr.com I EN Instruction manual VWR®MICRO STAR 30R
3.19 TEMPERATURE CORRECTION
If you notice a difference between preset temperature on display and actual measured temperature,
the centrifuge has temperature correction functionality. Temperature correction is performed by
entering the temperature difference in the service parameters of the centrifuge.
Temperature correction may only be performed by an authorized service technician!
Measured temperature depends on a number of factors, like environment temperature, rotational
speed, run time, etc.
4. MAINTENANCE AND CARE
4.1 REGULAR SERVICE
We recommend having the centrifuge and associated rotors checked by authorized service at least
once a year. You must thoroughly clean and disinfect the centrifuge prior to service.
4.2 CLEANING THE CENTRIFUGE
After every centrifugation, please remove any condensed water from the rotor chamber using a
soft, absorbent cloth. After use, leave the centrifuge lid open, so the inside can dry out.
For regular cleaning of the outside surface of the centrifuge and the rotor chamber, use mild
neutral detergent. Make sure that no liquid penetrates the inside of the housing.
Open the lid of the centrifuge and turn off the main switch. Disconnect the power cord from
mains socket. Remove the rotor with rotor key. Clean all accessible surfaces of the device and
accessories at least once a week and every time, when contaminated.
After cleaning with detergent, the rubber seal around the rotor chamber should be thoroughly
cleaned with water and lubricated with glycerine, to prevent it from becoming brittle.
For cleaning and disinfection, use only neutral cleaners and disinfectants. Before cleaning or
decontaminating the centrifuge, using means and methods not recommended in this manual,
you should consult with the manufacturer, in order to avoid the damage to the centrifuge.
To ensure safe and long operation of the centrifuge, please avoid the use of aggressive
chemicals, which can damage the centrifuge, rotor and accessories. Please check them
regularly for damage caused by corrosion.
Cleaning intervals:
For the sake of personal, environmental, and material protection, it is your duty to clean and if
necessary disinfect the centrifuge on a regular basis.
Maintenance
Recommended interval
Clean rotor chamber
Daily or when contaminated
Clean rotor
Daily or when contaminated
Accessories
Daily or when contaminated
Cabinet
Once per month
Ventilation holes
Every six months

18 vwr.com I EN Instruction manual VWR®MICRO STAR 30R
Refrain from using any other cleaning or decontamination procedure than
those recommended here, if you are not entirely sure that the intended
procedure is safe for the equipment.
Use only approved cleansers.
If in doubt, contact VWR.
4.3 CLEANING THE ROTOR
The rotor and accessories must be regularly cleaned to prevent contamination and corrosion
caused by residue. Check the rotor and the centrifuge housing monthly. This applies in particular
to the rotor bores. For cleaning the rotor use a neutral cleaning liquid. This will protect the rotor
and extend its service life.
Do not use damaged rotors and accessories for centrifugation!
To avoid the damage to the rotor, replace the sealing rings regularly.
4.4 ROTOR STERILIZATION
The rotors are autoclavable at 121 °C, for 20 minutes. After the rotor has been autoclaved for a
maximum of twenty times, seals of the rotor must be replaced (this is valid for rotors with seals).
4.5 SHIPPING
Before shipping the centrifuge, please bear the following in mind:
The centrifuge must be clean and decontaminated.
The decontamination must be confirmed with a decontamination certificate. Contact customer
service for more details.

19 vwr.com I EN Instruction manual VWR®MICRO STAR 30R
5. TROUBLESHOOTING
5.1 ERROR MESSAGES
If an error occurs during the operation of the centrifuge, an error message appears on the
display, and the centrifuge stops automatically. Temperature display and program display show
message Er, while speed display and time display show the error message. For the list of errors,
see below table.
DISPLAY
PROBLEM
SOLUTION
WHO
REPAIRS
SPEED
TIME
ROTOR
CHG
Rotor change
Repeat run
User
HI
Rotor speed too high
Reduce speed
User
Check rotor sensor
Service-SP
IMBAL
SEN
Imbalance sensor
Check imbalance sensor
Service-SP
Check imbalance sensor
Service
Electronics error
Service
OUR
Imbalance to high
Check rotor loading
arrangement
User
Check the samples weight
in the rotor
User
Check if the rotor and rotor
lid are fastened
User
Check the rotor and the lid
User
Check rotor sensor
Service-SP
Repeat the balancing
procedure
Service
LID
OPN
The lid of the
centrifuge open
Close the lid of the
centrifuge
User
SEN
Lid latch not
engaged
Open and close the lid of
the centrifuge again
User
Check lid sensors
Service-SP
MOTOR
SEN
Speed sensor error
Check speed sensor
Service-SP
Check speed sensor
Service
Electronics error
Service
SPD
Speed deviates for
more than
±500 RPM / 5 s
Check rotor, motor and
frequency regulator
Service
Electronics error
Service
T CHA
SEN
Chamber
temperature sensor
error
Check chamber
temperature sensor
Service-SP
Check chamber
temperature sensor
Service
Electronics error
Service
OUR
Chamber
temperature
over 50 °C
Check refrigerating system
Service

20 vwr.com I EN Instruction manual VWR®MICRO STAR 30R
DISPLAY
PROBLEM
SOLUTION
WHO
REPAIRS
SPEED
TIME
T CON
SEN
Condenser
temperature sensor
error
Check condenser
temperature sensor
Service-SP
Check condenser
temperature sensor
Service
Electronics error
Service
OUR
Condenser
temperature
over 80 °C
Check refrigerating system
Service
Check refrigerating
parameters
Service-SP
T REC
TI
Set temperature not
reached in 2 hours
Check the suitability of
centrifuge installation and
environmental conditions
User
Check refrigerating system
Service
Check refrigerating
parameters
Service-SP
DRIVE
HIV
Voltage overload on
the DC link
Reduce braking level
User
Error on frequency regulator
Service
Error on braking resistor
Service
LOV
Voltage too low on
the DC link
Check power supply
Service
OC
Current overload of
the motor
Repeat run
User
Reduce acceleration level
User
Check start-up parameters
Service-SP
Check motor
Service
Error on frequency regulator
Service
HOT
Driver temperature
too high
Reduce speed
User
Check motor
Service
Error on frequency regulator
Service
MAINS
INT
Power failure during
the run
Repeat run
User
READY
Fast cool function
reached the set
temperature
Stop the centrifuge by
pressing the STOP key
User
-----
---
After 1 hour of
standstill centrifuge
goes to sleep mode
(lines on all displays)
Press any key
User
Note: SP = service parameters
5.2 EXIT FROM ERROR DISPLAY
By pressing the STOP key, you exit from error display and go back to stand-by
mode.
If error is still displayed, turn off the main switch of the centrifuge and turn it
on again.
If the centrifuge still doesn't return to stand-by mode, call service!