Hettich EBA 280 User manual

Rev. 01 / 11.2022 Andreas Hettich GmbH & Co. KG AB1101EN_SA
EBA 280
EBA 280 S
EN
Operating Manual............................................................ 3

2/45 Rev. 01 / 11.2022 AB1101EN_SA
Andreas Hettich GmbH & Co. KG
Föhrenstraße 12, D-78532 Tuttlingen / Germany
Phone [phone] / 705-0
Fax [phone]
[email protected], ser[email protected]
www.hettichlab.com
Single Registration Number: DE-MF-000010680
© 2014 by Andreas Hettich GmbH & Co. KG
All rights reserved. No part of this publication may be reproduced without the prior written permission of the copyright
owner.
Änderungen vorbehalten! , Modifications reserved! , Sous réserve de modifications ! , Con riserva di modifiche!
AB1101EN_SA / Rev. 01

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Contents
1How to use these operating instructions.................................................................................................................5
2Symbol meanings ...................................................................................................................................................5
3Intended use...........................................................................................................................................................6
4Remaining risks......................................................................................................................................................6
5Technical specifications..........................................................................................................................................7
6Notes on safety.......................................................................................................................................................8
7Transport and storage.............................................................................................................................................9
7.1 Transport.........................................................................................................................................................9
7.2 Storage............................................................................................................................................................9
8Scope of delivery ....................................................................................................................................................9
9Removing the transport securing device...............................................................................................................10
10 Initial operation..................................................................................................................................................10
11 Opening and closing the lid...............................................................................................................................11
11.1 Opening the lid...........................................................................................................................................11
11.2 Closing the lid ............................................................................................................................................11
12 Inserting and removing the rotor........................................................................................................................12
13 Loading the rotor...............................................................................................................................................13
14 Operating and display elements........................................................................................................................14
14.1 Displayed symbols.....................................................................................................................................14
14.2 Control panel keys .....................................................................................................................................14
14.3 Setting options ...........................................................................................................................................15
15 Programming.....................................................................................................................................................16
15.1 Inputting or changing programs .................................................................................................................16
15.2 Calling up programs...................................................................................................................................18
15.3 Saving programs........................................................................................................................................18
16 Centrifugation....................................................................................................................................................19
16.1 Centrifugation with preset time...................................................................................................................19
16.2 Continuous run...........................................................................................................................................20
16.3 Short-term centrifugation............................................................................................................................21
17 Emergency Stop................................................................................................................................................21
18 Rotor detection..................................................................................................................................................22
19 Cycle counter ....................................................................................................................................................23
20 Settings and queries..........................................................................................................................................24
20.1 Querying system information .....................................................................................................................25
20.2 Acoustic signal...........................................................................................................................................26
20.3 Optical signal after ending the centrifugation run.......................................................................................27
20.4 Automatic unlocking of the lid after the centrifugation run..........................................................................28
20.5 Backlighting of the display..........................................................................................................................29
20.6 Displayed centrifugation parameters after switching on the device............................................................30
20.7 Activating/deactivating the "Dual time" function .........................................................................................31
20.8 Querying the hours of operation and the number of centrifugation runs ....................................................32
20.9 Resetting the cycle counter to zero............................................................................................................33
21 Relative centrifugal force (RCF)........................................................................................................................34

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22 Centrifugation of materials or mixtures of materials with a density higher than 1.2 kg/dm3...............................34
23 Emergency unlocking........................................................................................................................................34
24 Maintenance and servicing................................................................................................................................35
24.1 Centrifuge (housing, lid and centrifuging chamber)....................................................................................35
24.1.1 Surface cleaning and care..................................................................................................................35
24.1.2 Surface disinfection ............................................................................................................................35
24.1.3 Removal of radioactive contaminants.................................................................................................35
24.2 Rotors and Attachments ............................................................................................................................36
24.2.1 Cleaning and care...............................................................................................................................36
24.2.2 Disinfection.........................................................................................................................................36
24.2.3 Removal of radioactive contaminants.................................................................................................36
24.2.4 Rotors and accessories with limited service lives...............................................................................36
24.3 Autoclaving ................................................................................................................................................37
24.4 Centrifuge containers.................................................................................................................................37
25 Faults ................................................................................................................................................................38
26 Change mains input fuses.................................................................................................................................40
27 Returning Devices.............................................................................................................................................40
28 Disposal ............................................................................................................................................................40
29 Anhang / Appendix............................................................................................................................................41
29.1 Rotoren und Zubehör / Rotors and accessories.........................................................................................41

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1 How to use these operating instructions
 Before using the centrifuge, read the operating instructions and observe them.
 The operating instructions are a part of the device. They must always be kept readily available.
 If the device is set up at a different location, the operating instructions must be provided with it.
2 Symbol meanings
Symbol on the device:
Attention, general hazard area.
Symbol on the device:
Observe operating instructions.
This symbol indicates that the user must observe the operating instructions provided.
Symbol in this document:
Attention, general hazard area.
This symbol refers to safety relevant warnings and indicates possibly dangerous situations.
The non-adherence to these warnings can lead to material damage and injury to personal.
Symbol on the device and in this document:
Beware of biohazard.
Symbol in this document:
This symbol refers to important circumstances.
Symbol on the device:
The symbol is on the housing, near the hinge.
Direction of rotation of the rotor.
Symbol on the device:
The symbol is located on the front of the housing, below the borehole.
The direction of rotation of the Allen key to unlock the lid in an emergency.
Symbol on the device and in this document:
Symbol for the separate collection of electric and electronic devices according to the guideline
2002/96/EG (WEEE). The device belongs to Group 8 (medical devices).
Applies in the countries of the European Union, as well as in Norway and Switzerland.
Symbol on the shipping carton label:
This way up.
Symbol on the shipping carton label:
The shipping packaging must be transported and
handled within the indicated humidity range (10% - 80%).
Symbol on the shipping carton label:
The shipping packaging must be stored, transported and
handled within the temperature range shown (-20°C - +60°C).
Symbol on the shipping carton label:
The shipping packaging must be kept away from rain and
kept in a dry environment.
Symbol on the shipping carton label:
Fragile, handle with care.

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Symbol on the shipping carton label:
Stack limit. Maximum number of identical packages which may be stacked on the bottom package,
whereby “n“ stands for the number of permissible packages. The bottom package is not included in “n”.
3 Intended use
This device is a medical product (laboratory centrifuge) according to the in vitro diagnostic medical devices regulation
(EU) 2017/746.
The centrifuge was designed only for the separation of substances or mixtures with a density of no more than 1.2
kg/dm³, particularly of samples for preparation for human medical in-vitro diagnostics.
This especially includes the determination of potassium in blood serum. The running behaviour allows for gentle
separation, thereby preventing the accumulation of additional erythrocytic potassium in the serum. This prevents the
test results from being falsified.
The centrifuge is only meant for this purpose.
Another use or one which goes beyond this, is considered to be non-intended. The company Andreas Hettich GmbH
& Co. KG is not liable for damage resulting from this.
Observing all information in the operating instructions and complying with the measures described therein is also a
part of the intended use.
If the centrifuge is installed in another device or in a system, the manufacturer of the overall system is responsible for
its safety.
4 Remaining risks
The device is built according to the state-of-the-art and the recognized safety regulations. If used and handled
improperly, there could be life-threatening danger to the user or third parties, or the device could be impaired or there
could be other property damage. The device is only to be used for its intended purpose and only when it is in safe
working condition.
Malfunctions which could affect safety must be corrected immediately.

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5 Technical specifications
Manufacturer Andreas Hettich GmbH & Co. KG
D-78532 Tuttlingen
Model EBA 280 EBA 280 S
Basic-UDI-DI 4050674010008QE
Type 1101 1101-01 1102 1102-01
Mains voltage (10%) 200 - 240 V 1100 - 127 V 1200 - 240 V 1100 - 127 V 1
Mains frequency 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz 50 - 60 Hz
Connected load 185 VA 185 VA 330 VA 330 VA
Current consumption 0.85 A 1.75 A 1.6 A 3.0 A
Max. capacity 6 x 50 ml
Allowed density 1.2 kg/dm3
Speed (RPM) 6000
Force (RCF) 4146 5071
Kinetic energy 2700 Nm
Obligatory inspection
(DGUV Regel 100 - 500) no
Ambient conditions (EN / IEC 61010-1)
 Set-up site Indoors only
 Altitude Up to 2000 m above sea level
 Ambient temperature 2°C to 40°C
 Humidity Maximum relative humidity 80% for temperatures up to 31°C, linearly
decreasing to 50% relative humidity at 40°C.
 Excess-voltage category
(IEC 60364-4-443) 
 Pollution degree 2
Device protection class 
Not suitable for use in explosion-endangered areas.
EMC
 Emitted interference,
Interference immunity EN / IEC
61326-1,
Class B
FCC Class B EN / IEC
61326-1,
klasse B
FCC Class B
Noise level (dependent on rotor) 51 dB(A) 56 dB(A)
Dimensions
 Width 326 mm
 Depth 400 mm
 Height 242 mm
Weight approx. 11 kg

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6 Notes on safety
No claim of warranty will be considered by the manufacturer unless ALL instructions in this manual
have been followed.
Reports of serious incidents involving the device
Report any serious incidents involving the device to the manufacturer and, if necessary, to the competent
authority.
 The centrifuge should be installed on a good, stable base.
 Before using the centrifuge, make sure you check that the rotor is engaged on the motor shaft.
 When the centrifuge is running, according to EN / IEC 61010-2-020, no persons, dangerous
substances or objects may be within the safety margin of 300 mm around the centrifuge.
 Rotors, suspensions and accessories that possess traces of corrosion or mechanical damage or
if their term of use has expired may not be used any longer.
 The centrifuge may no longer be put into operation when the centrifuging chamber has safety-
related damages.
 For centrifuges without temperature control, when the room temperature is increased and/or if the
device is frequently used, the centrifuging chamber could be heated up. Therefore, it can't be
ruled out that the sample material might be changed due to the temperature.
 Before the initial operation of your centrifuge you should read and pay attention to the operating
instructions. Only personnel that has read and understood the operating instructions are allowed to
operate the device.
 Along with the operating instructions and the legal regulations on accident prevention, you should also follow the
recognised professional regulations for working in a safe and professional manner. These operating instructions
should be read in conjunction with any other instructions concerning accident prevention and environmental
protection based on the national regulations of the country where the device is to be used.
 This centrifuge is a state-of-the-art piece of equipment which is extremely safe to operate. However, it can lead to
danger for users or others if used by untrained staff, in an inappropriate way or for a purpose other than that it
was designed for.
 The centrifuge must not be moved or knocked during operation.
 In case of fault or emergency release, never touch the rotor before it has stopped turning.
 To avoid damage due to condensate, when changing from a cold to a warm room the centrifuge must either heat
up for at least 3 hours in the warm room before being connected to the mains, or run hot for 30 minutes in the
cold room.
 Only the rotors and accessories approved by the manufacturer for this device may be used (see chapter
"Anhang/Appendix, Rotoren und Zubehör/Rotors and accessories"). Before centrifuge vessels are used which are
not listed in the chapter "Appendix, Rotors and accessories", the user must make sure they can be used by
asking the manufacturer.
 The centrifuge rotor may only be loaded in accordance with the chapter "Loading the rotor".
 When centrifuging with maxim revolutions per minute the density of the materials or the material mixtures may not
exceed 1.2 kg/dm3.
 The centrifuge may only be operated when the balance is within the bounds of acceptability.
 The centrifuge may not be operated in explosion-endangered areas.
 The centrifuge must not be used with:
 inflammable or explosive materials
 materials that react with one another producing a lot of energy.
 If users have to centrifuge hazardous materials or compounds contaminated with toxic, radioactive or pathogenic
micro-organisms, they must take appropriate measures.

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For hazardous substances centrifuge containers with special screw caps must strictly be used. In addition to the
screw cap centrifuge containers, for materials in hazard category 3 and 4 a biosafety system must be used (see
the World Health Organisation’s “Laboratory Biosafety Manual”).
Without the use of a biosafety system the centrifuge is not microbiologically sealed in the sense of the
EN / IEC 610101-2-020 standard.
No biosafety systems are available for this centrifuge.
 The centrifuge must not be operated with highly corrosive substances which could impair the mechanical integrity
of rotors, hangers and accessories.
 Repairs must only be carried out by personnel authorised to do so by the manufacturer.
 Only original spare parts and original accessories licensed by the Andreas Hettich GmbH & Co. KG company are
allowed to be utilised.
 The following safety regulations apply:
EN / IEC 61010-1 EN / IEC 61010-2-020 as well as their national deviations.
 The safe operation and reliability of the centrifuge can only be guaranteed if:
 the centrifuge is operated in accordance with the operating instructions,
 the electrical installation on the site where the centrifuge is installed conforms to the demands of EN / IEC
stipulations.
 Meeting the country-specific requirements concerning occupational safety with regard to the use of laboratory
centrifuges at the workplaces provided for this purpose by the user is the responsibility of the user.
7 Transport and storage
7.1 Transport
Before transporting the device, the transport securing device must be installed.
When the device and accessories are transported, the following ambient conditions must be complied with:
 Ambient temperature: -20°C to +60°C
 Relative humidity: 10% to 80%, non-condensing
7.2 Storage
The device and the accessories may only be stored in closed and dry rooms.
When the device and accessories are stored, the following ambient conditions must be complied with:
 Ambient temperature: -20°C to +60°C
 Relative humidity: 10% to 80%, non-condensing
8 Scope of delivery
The following accessories are delivered with the centrifuge:
1 connecting cable
2 fuses
1 hex head wrench
1 operating manual
1 information sheet, transport securing device
1 information sheet, emergency unlocking
The rotor(s) and associated accessories are included in the delivery in the quantity ordered.

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9 Removing the transport securing device
It is imperative that the transport securing device be removed.
Keep the transport securing device in a safe place since it must be installed again before transporting the
device.
The device may only be transported with the transport securing device installed.
To protect the device from damage during transport, the motor is fixed in place.
This transport securing device must be removed when the device is put into operation.
(a)
(b) (b)
(a)
 Remove the two screws (a) and spacer sleeves (b).
The transport securing device is installed in the opposite order.
10 Initial operation
 Remove the transport securing device from the housing floor; see the "Removing the transport securing device"
chapter.
 Position the centrifuge in a stable and level manner in a suitable place. During set-up, the required safety
margin of 300 mm around the centrifuge is to be kept according to EN / IEC 61010-2-020.
When the centrifuge is running, according to EN / IEC 61010-2-020, no persons, dangerous
substances or objects may be within the safety margin of 300 mm around the centrifuge.
 Ventilation openings may not be blocked.
A distance of 300 mm must be maintained from the ventilation slots and openings of the centrifuge.
 Check whether the mains voltage tallies with the statement on the type plate.
 Connect the centrifuge with the power cord to a standard mains socket. For connection ratings refer to Chapter
"Technical specifications".
 Switch on the mains switch (switch position ""). The LEDs will briefly light up.
The following displays appear one after the other:
1. The centrifuge model
2. The type number and program version
3. The rotor code (R) and the maximum speed of the rotor (maxRPM) of the last rotor detected by the rotor
detector
4. The centrifugation parameters of the last used program or program 1
If the lid is closed, the message "Open the lid" is displayed.
In this case, open the lid to display the centrifugation parameters.

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11 Opening and closing the lid
11.1 Opening the lid
The lid can only be opened if the centrifuge is switched on and the rotor is stationary.
If this shouldn't be possible, see the "Emergency unlock" chapter.
When the cycle counter is activated, after a centrifugation run, while opening the lid, the remaining number
of running cycles (centrifugation runs) is briefly displayed.
Example:
PROG t/min:sRPM
STOP
OPEN
 Press the key.
The lid is unlocked by the motor.
: Lid unlocked.
The left LED in the key will go out.
Example:
PROG t/min:sRPM
11.2 Closing the lid
Do not reach with your fingers between the lid and housing.
Do not slam the lid closed.
 Put the lid on and lightly press the front
edge of the lid down.
The lid is locked by the motor.
: Lid locked.
The left LED in the
STOP
OPEN
key is
illuminated.
Example:
PROG t/min:sRPM

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12 Inserting and removing the rotor
Rotor with unlocking knob
Inserting the rotor:
Dirt particles between the motor shaft and rotor prevent the rotor from
having a perfect seat and cause it to run unsteadily.
If necessary, clean the motor shaft (B) and the rotor hub before inserting the
rotor.
B
A
 Lift up the rotor by the unlocking knob (A) and place horizontally on the motor
shaft (B). The rotor will automatically engage on the motor shaft.
 Hold the rotor firmly at the left and right and pull up lightly to check whether it
has properly engaged on the motor shaft.
Removing the rotor:
 Pull up the unlocking knob (A) on the rotor, hold onto it and lift the rotor from the
motor shaft.
Rotor without unlocking knob
Inserting the rotor:
Dirt particles between the motor shaft and rotor prevent the rotor from
having a perfect seat and cause it to run unsteadily.
If necessary, clean the motor shaft (B) and the rotor hub before inserting the
rotor.
B
C
 Lift up the rotor by the handle (C), place it horizontally on the motor shaft (B) and
press down as far as it can go.
Removing the rotor:
 Hold the rotor firmly by the handle (C) and lift it off of the motor shaft.

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13 Loading the rotor
Standard centrifuge containers of glass will not stand RCF values exceeding 4000 (DIN 58970, pg. 2).
 Hold the rotor firmly at the left and right and pull up lightly to check whether it has properly engaged on the motor
shaft.
 With swing-out rotors all rotor positions must be lined with identical hangers.
 The rotors and hangers may only be loaded symmetrically. The centrifuge containers have to be distributed
evenly on all rotor positions. For authorised combinations see Chapter "Anhang/Appendix, Rotoren und
Zubehör/Rotors and accessories".
In the case of angle rotors all possible rotor positions must be loaded, see chapter "Anhang/Appendix, Rotoren
und Zubehör/Rotors and accessories".
Rotor is evenly loaded Not permitted!
Rotor is not evenly loaded
 In containers with rubber inserts, the same number of rubber inserts must always be among the centrifuge
containers.
 The centrifuge containers may only be filled outside of the centrifuge.
 The maximum filling quantity for the centrifuge containers specified by the manufacturer must not be exceeded.
In the case of angle rotors, the centrifuging
vessels may only be filled so far that no fluid
can be expelled from them while the centrifuge
is running.
Fluid
Centrifugal force
 When loading the angle rotors, no liquid may get into the angle rotors or centrifuging chamber.
 When loading the hangers and swing-out rotors and when swivelling out the hangers while the centrifuge is
running, no liquid may enter the hangers or the centrifuging chamber.
 In order to maintain the weight differences within the centrifuge container as marginal as possible, a consistent
fill level in the containers is to be heeded.
 The weight of the permissible filling quantity is specified on each rotor. This weight may not be exceeded.

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14 Operating and display elements
PROG
PROG
START
PULSE
t/min:s
RCF
RPM
STOP
OPEN
14.1 Displayed symbols
Lid unlocked.
Lid locked.
Rotation display. The rotation display lights up, rotating counter clockwise, as long as the rotor is turning.
14.2 Control panel keys
PROG
 Calling up programs
 Save program.
RCF
 Switching between the RPM display (RPM) and RCF display ( RCF ).
RCF values are displayed in parentheses .
The LED above the key will light up if the RCF display is activated.
RPM Speed
RCF : Relative centrifugal acceleration
 Selection key for activating the individual parameters.
Every time the key is pressed, the next parameter is activated.
 Call up the "MACHINE MENU" (keep the key pressed for 8 seconds).
 In the "Machine Menu", select the menus " Info", " Settings" and " Time & Cycles".
 Scroll forward in the menus.
 Change the value of a previously selected parameter.
If the key is kept pressed, the value changes with increasing speed.
START
PULSE
 Start the centrifugation run.
The LED in the key will be illuminated during the centrifugation run as long as the rotor is turning.
 Short-term centrifugation.
Centrifugation is run as long as the key is kept pressed. The LED in the key will be illuminated during
the centrifugation run as long as the rotor is turning.
 Save inputs and changes.
 Call up the menus " Info", " Settings" and " Time & Cycles".
STOP
OPEN
 Finish the centrifugation run.
The rotor runs down with a pre-selected brake stage. The right LED in the button is illuminated until
the rotor is still. After the rotor stops, the left LED in the key will light up.
Pressing the key twice triggers the Emergency Stop.
 Unlock the lid.
The left LED in the key will go out.

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14.3 Setting options
PROG RCL Program location of the program to be called
The program locations 1 to 9 and #can be called.
t/min Runtime. Adjustable from 1 - 99 min, in steps of 1 minute.
t/sec Runtime. Adjustable from 1 - 59 s, in steps of 1 second.
Continuous run "--:--". Set the parameters t/min and t/sec to zero.
Begins at
START
Counting the runtime.
The runtime begins counting immediately after the centrifugation run begins.
The runtime only begins counting after reaching the set speed.
Begins at
SPEED This setting is only possible when the "Dual time" function is activated. See the
"Activating/deactivating the 'Dual time' function" chapter. This function is activated ex works.
RPM Speed
A number value from 200 rpm to the maximum speed of the rotor can be set.
Settable in increments of 10.
For the maximum rotor speed, see the chapter "Appendix, Rotors and accessories".
RAD/mm Centrifuging radius
Adjustable from 10 mm to 330 mm, in steps of 1 mm.
For the centrifuging radius, see the chapter "Appendix, Rotors and accessories".
It is only possible to input the centrifuging radius if the RCF display ( RCF ) is activated.
RCF Relative centrifugal acceleration
A number value can be set which results in a speed between 200 rpm and the maximum rotor speed.
Settable in increments of 1.
It is only possible to input the relative centrifugal acceleration (RCF) if the RCF display ( RCF ) is
activated.
The relative centrifugal acceleration (RCF) depends on the centrifuging radius (RAD). The relative
centrifugal acceleration RCF) and the set centrifuging radius (RAD) are displayed.
Starting steps 1 - 9. Step 9 = shortest starting time, Step 1 = longest starting time.
Brake steps 0 - 9. Step 9 = shortest run-down time, Step 1 = long run-down time,
Step 0 = longest run-down time (brakeless run-down).
PROG STO Program location where the program is stored.
9 different programs can be stored (program locations 1 to 9).
No programs should be saved at program location #.
The program location #serves as intermediate memory for changed centrifugation parameters.
The centrifugation parameters at program location #are overwritten every time a centrifugation
run is carried out with changed centrifugation parameters which were not saved to a program
location.

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15 Programming
No programs should be saved at program location #.
The program location #serves as intermediate memory for changed centrifugation parameters.
If centrifugation parameters are changed, but are not saved to a program location afterwards, the display
shows a dash "-" instead of the program location number. After starting the centrifugation run, these
centrifugation parameters are then automatically saved at program location #.
The centrifugation parameters at program location #are overwritten every time a centrifugation run is carried
out with changed centrifugation parameters which were not saved to a program location.
15.1 Inputting or changing programs
In order to set the continuous run, the parameters t/min and t/sec must be set to zero. In the time display
(t/min:s), "--:--" appears.
Example:
PROG t/min:sRPM
The relative centrifugal force (RCF) depends on the centrifuging radius (RAD). A correct calculation is only
possible if the right centrifuging radius is set. During the input of the RCF, the set centrifuging radius is
displayed.
Example:
PROG t/min:sRPM
It is only possible to display and input the relative centrifugal force (RCF) and the centrifuging radius (RAD) if
the RCF display ( RCF ) is activated.
If no key is pressed for 8 seconds after selection or during parameter input, the previous values are shown on
the display. The parameters must then be input again.
Entering parameters can be cancelled at any time by pressing the
STOP
OPEN
key. In this case, the settings are not
stored.
Example:
RPM display (RPM) Example: RCF display ( RCF )
 Press the key.
PROG RCL : Program location of the
displayed centrifugation parameters.
PROG t/min:sRPM PROG t/min:sRPM

 With the keys, set the program location
whose centrifugation parameters are to be
displayed.
PROG t/min:sRPM PROG t/min:sRPM

START
PULSE
 Press the key.
The centrifugation parameters are
displayed.
PROG t/min:sRPM
PROG t/min:sRPM
PROG t/min:sRPM
PROG t/min:sRPM

Continued on next page

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Example:
RPM display (RPM) Example: RCF display ( RCF )
RCF
 Press the key to activate the RPM display
(RPM) or the RCF display ( RCF ) as
needed. The LED above the key is
illuminated if the RCF display ( RCF ) is
activated.
PROG t/min:sRPM PROG t/min:sRPM

 Keep pressing the key until the desired
centrifugation parameter is displayed.
Example: t/min : Runtime, minutes.
PROG t/min:sRPM PROG t/min:sRPM

 Set the desired value with the keys.
PROG t/min:sRPM PROG t/min:sRPM


 Input all the desired centrifugation
parameters in succession.
PROG t/min:sRPM PROG t/min:sRPM

 Press the key until the following is
displayed:
PROG STO : Program location where the
centrifugation parameters are stored.
PROG t/min:sRPM PROG t/min:sRPM

 Set the desired program location with the
keys.
PROG t/min:sRPM PROG t/min:sRPM

START
PULSE
 Press the key.
The centrifugation parameters are stored
at the program location.
PROG t/min:sRPM
PROG t/min:sRPM
PROG t/min:sRPM
PROG t/min:sRPM

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15.2 Calling up programs
Example:
RPM display (RPM) Example: RCF display ( RCF )
PROG
 Press the key.
PROG RCL : Program location of the
displayed centrifugation parameters.
PROG t/min:sRPM PROG t/min:sRPM

 With the keys, set the program location
whose centrifugation parameters are to be
displayed.
PROG t/min:sRPM PROG t/min:sRPM

START
PULSE
 Press the key.
The centrifugation parameters are
displayed.
PROG t/min:sRPM
PROG t/min:sRPM
PROG t/min:sRPM
PROG t/min:sRPM
15.3 Saving programs
Example:
RPM display (RPM) Example: RCF display ( RCF )
PROG
 Press the key twice.
PROG STO : Program location where the
centrifugation parameters are stored.
PROG t/min:sRPM PROG t/min:sRPM

 With the keys, set the program location
where the centrifugation parameters are
to be stored.
PROG t/min:sRPM PROG t/min:sRPM

START
PULSE
 Press the key.
The centrifugation parameters are stored
at the program location.
PROG t/min:sRPM
PROG t/min:sRPM
PROG t/min:sRPM
PROG t/min:sRPM

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16 Centrifugation
In accordance with EN / IEC 61010-2-020, no persons, hazardous substances or objects may be within a
safety range 300 mm around the centrifuge during a centrifugation run.
After each centrifugation run, while the lid is unlocking, the remaining number of running cycles (centrifugation
runs) will be briefly displayed.
Example:
PROG t/min:sRPM
If the permissible weight difference within the rotor load is exceeded, the centrifugation run is aborted during
the start-up and the following display appears:
PROG t/min:sRPM
A centrifugation run can be aborted at any time by pressing the
STOP
OPEN
key.
During a centrifugation run, centrifugation parameters can be selected and changed. The changed values are
stored at program location #.
With the
RCF
key, you can toggle between the RPM display (RPM) and RCF display ( RCF ) at any time. If
the RCF display ( RCF ) is worked with, the centrifuging radius must be input.
The following is displayed:
PROG t/min:sRPM
Further operation of the centrifuge is then only possible after opening the lid.
Operation errors and malfunctions will be shown (see the chapter on "Malfunctions").
 Plug in the mains switch. Switch position .
 Load the rotor and close the centrifuge lid.
16.1 Centrifugation with preset time
Example:
RPM display (RPM) Example: RCF display ( RCF )
RCF
 Press the key to activate the RPM display
(RPM) or the RCF display ( RCF ) as
needed. The LED above the key is
illuminated if the RCF display ( RCF ) is
activated.
PROG t/min:sRPM PROG t/min:sRPM

 Input the desired centrifugation parameters (see the
"Programming" chapter).
PROG t/min:sRPM PROG t/min:sRPM

START
PULSE
 Press the key.
The centrifugation run is started.
During the centrifugation run, the rotor
speed or the resulting RCF value and
remaining time are displayed.
PROG t/min:sRPM PROG t/min:sRPM

Continued on next page

EN
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Example:
RPM display (RPM) Example: RCF display ( RCF )
 After the time elapses or if the centrifugation run is
aborted by pressing the
STOP
OPEN
key, the run-out
occurs with the set brake stage.
The brake stage is displayed. Example 7
PROG t/min:sRPM PROG t/min:sRPM
16.2 Continuous run
Example:
RPM display (RPM) Example: RCF display ( RCF )
RCF
 Press the key to activate the RPM display
(RPM) or the RCF display ( RCF ) as
needed. The LED above the key is
illuminated if the RCF display ( RCF ) is
activated.
PROG t/min:sRPM PROG t/min:sRPM

 Input the desired centrifugation parameters. Set the
parameters t/min and t/sec to zero (see the
"Programming" chapter).
PROG t/min:sRPM PROG t/min:sRPM

START
PULSE
 Press the key.
The centrifugation run is started.
During the centrifugation run, the rotor
speed or the resulting RCF value and
elapsed time are displayed.
PROG t/min:sRPM PROG t/min:sRPM

STOP
OPEN
 Press the key.
The centrifugation run is ended.
The run-out occurs with the set brake
stage. The brake stage is displayed.
Example 7
PROG t/min:sRPM PROG t/min:sRPM