Centrifuge and method for operating same

Abstract

The invention relates to a centrifuge (10) comprising a housing (14); a rotor for receiving a sample container; a driver for driving the rotor; a rotor chamber within the housing (14), a portion of the rotor chamber being defined by a safety container (18), the rotor being mounted within the rotor chamber; a control unit (38) for controlling the driver to perform a centrifugal operation on the sample in the sample container of the rotor; a cover (12) for closing the rotor chamber to operate the centrifuge; an operating unit (16) having a display (26) for displaying various parameters of the operation of the centrifuge and at least one input device (22, 24, 26) for inputting the parameters of the operation of the centrifuge and / or for selecting the parameters and / or programs of the operation of the centrifuge stored in the operating unit (16). The selected parameters and / or programs can be transmitted from the operating unit (16) to the control unit (38). According to the invention, the control unit (38) is in signal connection with the at least one cover switch (36). Once the lid (12) is closed, the lid switch (36) is activated. If a certain basic parameter is further satisfied, once the cover switch (36) is activated, the control unit (38) activates the drive of the rotor in accordance with the parameter previously input to the operating unit (16) and / or the program previously selected to operate the centrifuge.

Description

Technical Field

[0001] The invention relates to a centrifuge of the type specified in the preamble to claim 1 and to a method for operating the centrifuge according to claim 20 . Background Art

[0002] Centrifuges of this type, in particular laboratory centrifuges, for separating substances or substance mixtures, preferably at speeds of up to 17,000 rpm, in particular for samples of up to 1,000 ml per rotor, have long been known, among which in the pharmaceutical field for processing substance mixtures or for extracting plasma by centrifugation. Centrifugation can be carried out according to a specific continuous processing time, a specific speed and a specific temperature curve. The prior art centrifuges are essentially composed of a housing that can be closed by a lid, in which a replaceable rotor is arranged in a safety container. The safety container and the closed lid define a rotor chamber in which the rotor is arranged on a drive shaft. The drive shaft is coupled to a motor. A container seat for inserting and removing a sample container is provided in the peripheral area of ​​the rotor. The sample container contains a substance mixture to be processed or a blood sample, i.e. a so-called sample. The rotor is connected to the motor. The rotor and the motor are arranged in the housing.

[0003] Depending on the rotor used and the sample container inserted therein, there are different maximum speeds for safety reasons, but also in order to obtain the desired processing results, the compliance of which must be monitored during the operation of the centrifuge. Depending on the sample to be processed, there are further requirements, for example regarding the continuous processing time and the processing temperature, which also need to be monitored. The continuous processing time, the processing temperature and the processing speed depend on the rotor used, the sample container used and the sample to be centrifuged. Therefore, these data are entered and stored, for example by the control unit of the laboratory centrifuge, which, depending on the absolute range of data / parameters to be entered or the programs to be activated or deactivated, leads to complex setting processes and requires an operating unit of the control unit that is appropriately configured. Therefore, the operating unit is characterized by a large number of switch devices. A display is provided to display the various parameters of the centrifuge operation. The operating unit has input devices for entering the parameters of the centrifuge operation and / or selecting the centrifuge operation parameters stored in the control unit. For centrifugation, the data, parameters and programs are then transmitted to the centrifuge control unit that controls the operation of the centrifuge.

[0004] EP 0 994 753 B1 discloses a laboratory centrifuge in which a rotary knob is provided as an input device for inputting parameters for operating the centrifuge.

[0005] DE 10 2008 010 640 A1 discloses a universal centrifuge.

[0006] DE 38 18 407 A1 likewise discloses a centrifuge having a lid, which is monitored by a sensor. However, this document does not go beyond what is disclosed in DE 10 2008 010 640 A1.

[0007] US2021 / 0039114 A1 discloses a centrifuge that is started by entering a password. The lid of the centrifuge is monitored by a sensor, so the centrifuge can only be started when the lid is closed.

[0008] However, a disadvantage of these prior art centrifuges is that the operations required to start the centrifuge operation are very time consuming. Summary of the invention

[0009] The object of the present invention is therefore to improve a centrifuge of the type specified in the preamble of claim 1 in order to simplify, in particular to speed up, the operation of the centrifuge.

[0010] This object is achieved by the characterizing features of claim 1 in combination with the features of its preamble.

[0011] The invention is based on the recognition that a lid-controlled switch operation can accelerate the start of a centrifuge operation even if no new parameters have been selected or newly entered. If no new parameters have been selected or entered, the centrifuge will always operate according to the last entered parameters or the last selected program if other specific conditions are met.

[0012] Therefore, according to the invention, the control unit is connected to at least one lid switch signal, in particular via a signal line. The lid switch can be activated when the lid is in its closed position. When the lid switch is activated, the control unit starts the drive of the rotor to run the centrifuge according to the parameters last input to the control unit and / or the program last selected by the operating unit, if other specific conditions are met. This simplifies the operation of the centrifuge, in particular the start of its operation. This is particularly effective for repeated centrifugation runs with the same parameters and / or the same program. At the same time, this also ensures the operational safety of the centrifuge. For example, in the case of critical rotor types or rotor sizes, i.e. rotors with high kinetic energy, unintentional misstarts can be avoided. This also applies to centrifuges with buckets With rotors with a very large rotor, individual buckets may be missing when the rotor is started, which can cause a large imbalance in the centrifuge. If the lid is closed and the basic parameters are met, the centrifuge starts automatically. No further measures are required. The basic parameters are easily accessible via the control unit.

[0013] The basic parameter is preferably related to a specific rotor type and / or a specific rotor size installed in the centrifuge.As an alternative or in addition, the basic parameter may refer to a specific rotation speed last entered and / or a specific program last selected.

[0014] In one embodiment of the invention, at least one safety switch that interacts with the control unit is provided. The safety switch can also be designed in the form of a programmable controller. If a component of the centrifuge fails, the safety switch can prevent the rotor drive from being activated. This is a simple way to ensure that the centrifuge cannot be started when there may be a risk due to a defective component during operation of the centrifuge or when a component fails.

[0015] The safety switch can be connected to sensors and control units for detecting centrifuge component failures, which interact with the control unit to start and stop the drive. The interaction between the corresponding sensors and the control unit allows, on the one hand, the detection of component failures and, on the other hand, the blocking of the drive from starting if necessary.

[0016] To achieve a compact design and easy production, the operating unit, display and input device are combined in one electronic assembly. The electronic assembly can be provided with at least one interface, i.e. a wired or wireless interface. Through this interface, relevant operating data can be easily output or software updates can be uploaded.

[0017] Preferably, the control unit is connected to at least one imbalance sensor, a sensor for detecting the rotor speed, a temperature sensor, in particular a temperature sensor arranged at different locations in the centrifuge, a rotor type recognition sensor signal and evaluates their signals accordingly for controlling the rotor. This also allows the centrifugation run to be recorded, which is necessary for certain samples and centrifugation runs.

[0018] In one embodiment of the invention, two lid switches are provided, which are connected to the control unit via a signal line. The control unit starts the rotor drive only when all lid switches are activated. This can prevent false starts when the lid is not closed correctly.

[0019] The cover may be designed to be hinged about a pivot axis.

[0020] In order to make the lid switch easy to be activated, the lid or the lid switch itself that is used to activate the lid switch has an activation device that is associated with the lid switch or each lid switch and is used to activate the relevant lid switch. Especially, the activation device is arranged on a side away from the pivot axis.

[0021] In a preferred embodiment of the present invention, the lid has a locking mechanism that prevents the lid from opening after the lid is closed. This prevents any unintentional opening of the lid and interrupts the centrifugation process under any circumstances.

[0022] Furthermore, it is advantageous if the locking mechanism comprises a locking element which is movable between a locking position and a release position thereof. The locking element locks the lid during operation of the centrifuge. Thus, the locking element keeps the lid in the closed position. This makes it impossible to open the lid again.

[0023] The servomotor can move the locking element between the locking position and the release position. Thus, the locking mechanism can be triggered and operated automatically.

[0024] In order to be able to detect the position of the locking element, a position sensor connected to the control device is provided. The control device activates the rotor drive only when the locking element is in its locking position.

[0025] Preferably, the display is designed as an input device in the form of a touch display.

[0026] In order to set all parameters and programs for operating the centrifuge, the input device can be designed as part of an operating unit having at least one pulse generator for detecting the direction of rotation and switches that are independent of one another.

[0027] In particular, at least one rotary knob may be provided as input device.

[0028] Additionally, or as an alternative, a single button may be provided as the input device.

[0029] In particular, the control unit has a memory for storing various programs and / or parameters, which are transmitted to the control unit for controlling and regulating the operation of the centrifuge. This allows parameters and programs to be easily selected from the parameters and programs stored in the control unit without having to re-enter the parameters and programs each time. Preferably, data in the form of parameters and / or programs are transmitted to the control unit via a data bus, and the control unit regulates or controls the operation of the centrifuge based on the transmitted data.

[0030] Parameters can be from the following groups: - the target speed of the rotor during centrifuge operation, - The time T that the centrifuge runs at the target speed, - a target temperature within the centrifuge rotor chamber for cooling during centrifuge operation; - the time course of the starting ramp at the beginning of the centrifuge operation and the braking ramp at the end of the operation; -The radius of the rotor inserted into the rotor chamber; -Start time, i.e. the time when the centrifuge operation begins, i.e. the time when the rotor starts to rotate or the rotor reaches the target speed.

[0031] The rotary button is designed to generate pulses for rotary motion, detect the direction around its rotation axis, and serve as a switching motion for vertical displacement motion along the direction of the rotation axis. The display shows the above parameters and programs after the rotary button is controlled.

[0032] In another aspect of the invention, this object is achieved by a method for operating a centrifuge of the type just described, in which method the operation of the centrifuge is started as soon as the lid is closed.

[0033] Specifically, the centrifuge can only start running after the lid is locked. Therefore, two conditions need to be met in this case: the lid must be closed and the lid must be locked.

[0034] To increase centrifuge safety, the centrifuge will not start operating if a monitored component fails.

[0035] Preferably, the centrifuge always starts running according to the last entered parameters or the last selected program.

[0036] In one embodiment of the invention, the centrifuge operation can be started by closing the lid only for certain basic parameters, for example for a predetermined rotor type or rotor size, for a predetermined rotation speed and / or for a predetermined program.

[0037] This is primarily to increase the safety of centrifuge operation. For example, in critical rotor types or rotor sizes, i.e. rotors with high kinetic energy, unintentional misstarts can be avoided. This also applies to rotors with buckets, where individual buckets can be missing during rotor start-up, which would create a large imbalance in the centrifuge. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Further advantages, features and potential applications of the present invention will become apparent from the following description taken in conjunction with the embodiments shown in the accompanying drawings.

[0039] Throughout the specification, claims and drawings, terms and associated reference numerals are as shown in the following list of reference numerals. In the drawings:

[0040] Figure 1 is a perspective view of a centrifuge according to the present invention, with the lid open, viewed from above at an angle;

[0041] Figure 2a is along Figure 1 A cross-sectional view of the central plane of

[0042] Figure 2b is along Figure 2a The cross-sectional view of line BB;

[0043] Figure 2c is along Figure 2a The cross-sectional view of the GG line;

[0044] Figure 3 yes Figure 1 A front view of a centrifuge;

[0045] Figure 4a is along Figure 1 a cross-section of the central plane of the apparatus, but with the lid closed;

[0046] Figure 4bis along Figure 4a The cross-sectional diagram of line BB, and

[0047] Figure 4c is along Figure 4a Cross-section of the GG line. DETAILED DESCRIPTION

[0048] Figures 1 to 3 are different views of a centrifuge 10 according to the invention, with its cover 12 open; Figures 4a to 4c 1 and 2 are different views of the centrifuge 10 with the lid 12 closed.

[0049] The centrifuge 10 has a housing 14, which is connected to an operating unit 16 at the front thereof. A safety container 18 is arranged inside the housing 14, which defines a rotor chamber of the centrifuge 10. The rotor (not shown in detail here) is connected to a drive shaft 20 inside the safety container 18. The drive shaft 20 drives the rotor, which is adapted to be non-rotatably connected to the drive shaft. The lid 12 can be used to close the rotor chamber to allow the centrifuge to operate.

[0050] The cover 12 is pivoted and mounted on the housing 14 in the upper region of the housing 12 on the side of the housing 14 remote from the operating unit 16 by means of two hinge joints (not shown in detail here). In order to load and unload the rotor with sample containers and also to change the rotor, for example to use different types of rotors for different applications, the cover 12 is opened and the user thus has free access to the rotor chamber, which is delimited in certain areas by a safety container 18, in which the rotor and the sample containers are fixed. Each sample container contains the material to be centrifuged.

[0051] The front of the operating unit 16 is inclined and extends to the upper edge of the housing 14 at an angle of about 70° relative to a plane parallel to the base of the centrifuge 10. Input devices in the form of various buttons 22 and a rotary button 24 are provided at the front of the operating unit 16. In addition, a touch display 26 is also provided, which also serves as an input device. The input device is used to input parameters for operating the centrifuge and / or select parameters and operating programs for operating the centrifuge stored in the memory. The touch display 26 also displays the selected parameters / operating programs and / or parameters / operating programs to be selected. The operating unit 16 is combined with the input device and the touch display 26 to form an electronic component. The electronic component is equipped with a wired or wireless interface for inputting data to the electronic component or reading data from the electronic component.

[0052] On the side of the hinge joint 12 away from the interior of the lid, the lid 12 has two locking devices 28, each of which is in the form of an annular mounting for a locking element 30. The locking devices 28 are arranged at a certain distance from each other. Each locking device 28 of the lid 12 on the housing 14 is assigned a locking element 30. The locking elements 30 are coupled to each other and can be moved between their open position and closed position. In order to allow the locking devices 28 to be pivotally connected to the locking elements 30 together with the lid 12 when moving from the open position to the closed position, a locking groove 32 associated with the locking device 28 is provided on the upper wall 14a of the housing 14. The locking groove 32 is adapted to the outer contour of the associated locking device 28.

[0053] The upper wall 14 a has a circular central recess 14 b which corresponds to the cross-sectional shape of the safety container 18 .

[0054] The locking element 30 can be moved between an open position and a closed position by means of a drive motor 34. In the closed position of the lid 12, the locking element 30 engages with an associated annular socket of the locking device 28. For this purpose, the lid 12 is pivoted downwards. The lid 12 is in the closed position and is blocked by the locking element 30 engaging with the locking device 28. Thus, the centrifuge 10 is closed.

[0055] The lid switch 36 is provided so that when the lid 12 is in its closed position, the locking element 30 automatically moves from the open position to the closed position. The lid switch 36 is connected to a control unit 38 via a signal line (not shown in detail here), see Figure 2a The lid switch 36 is operated by the associated locking device 28 . If the lid 12 is closed, the locking device 28 has activated the lid switch 36 and sends a corresponding signal to the control unit 38 .

[0056] In addition, each locking element 30 is provided with a first and a second position switch 40a, 40b for detecting the position of the locking element 30. The locking elements 30 are coupled to each other through a connecting element 42, and the locking elements 30 are driven by a driving motor 34. A first trigger protrusion 44 is provided on the connecting element 42, and the first trigger protrusion 44 is assigned to the first position switch 40a. In addition, a second trigger protrusion 46 is provided on the connecting element 42 or the locking element 30, and the second trigger protrusion 46 is assigned to the second position switch 40b. The trigger protrusions 44, 46 and the first and second position switches 40a, 40b are respectively as shown in FIG. Figure 2b , 2c , 4b and 4c.

[0057] Each position switch 40a, 40b is connected to the control unit 38 via a corresponding signal line, which is not described in detail here. If the locking element 30 is in the closed position, the position switch 40b is activated and sends a corresponding signal to the control unit 38. If the locking element 30 is in the open position, the position switch 40a is activated and sends a corresponding signal to the control unit 38.

[0058] If the locking element 30 is moved to the closed position, the second triggering protrusion 46 on the connecting element 42 activates the position switch 40b and sends a corresponding signal to the control unit 38, see Figure 4b and Figure 4c If the locking element 30 is moved to the open position, the first trigger protrusion 44 activates the position switch 40a. Figure 2b and Figure 2a .

[0059] The control unit 38 automatically starts the centrifuge operation when the following conditions occur: 1. The lid 12 is closed, the lid switch 36 has therefore been activated and has sent a corresponding signal to the control unit 38; and at the same time, 2. The locking element 30 is in the closed position, that is, the locking element 30 is engaged with the locking device 28 of the cover 12; and at the same time, 3. Meet other basic parameters.

[0060] By closing the lid 12, for example, the centrifuge operation can be started automatically when the correct rotor for the last program is inserted. In this case, the centrifuge 10 operation is started according to the parameters / program last entered or selected in the operating unit 16 and / or according to the program last entered / selected when the lid 12 was closed.

[0061] In this case, basic parameters must be met for automatic starting of the centrifuge 10 once the lid 12 is closed. For example, the centrifuge 10 has sensors for detecting failure of components of the centrifuge 10. These sensors are connected to the control unit 38. If the sensors report that a component has failed, this will prevent the centrifuge 10 from starting. An error or warning message is then displayed to the user on the touch display.

[0062] Furthermore, for safety reasons, the control unit 38 can also be connected to the signals of the unbalance sensor, the rotor speed detection sensor, the temperature sensor, especially the temperature sensor arranged at different positions in the centrifuge, and the rotor type identification sensor, and the control unit 38 can evaluate the signal to control the rotor. The values ​​of these sensors can be compared with predefined basic parameters, and the centrifuge 10 is started according to the basic parameters when the lid is closed. If these values ​​meet the basic parameters, the centrifuge 10 will automatically start when the lid 12 is closed.

[0063] The rotary button 24 is designed to generate pulses through a rotary motion, detect the direction around its rotation axis, and act as a switching motion for vertical displacement in the direction of the rotation axis. The touch display 26 displays the above parameters and programs. Moreover, the rotary button 24 designed in this way changes the parameter value faster than the touch display 26 through software that can be dynamically set, in such a way that rotating the rotary button 24 faster makes the step size of the parameter change larger, while rotating the rotary button 24 slower makes the step size of the parameter change smaller. For example, the type of parameter can be changed by pressing the rotary button 24.

[0064] Instead of the touch display 26 , only a display may also be provided.

[0065] Parameters are thus entered and selected using the setup button 22 and the rotary button 24. The setup button 22 can be configured as a favorite button for accessing certain program modes. The setup button 22 can be assigned two functions. For example, with four setup buttons, the user has eight favorite options, each of which can be assigned a program for the centrifuge to run.

[0066] The operating unit 16 has a memory and a microcontroller for storing various programs and / or parameters for controlling the operation of the centrifuge.

[0067] These parameters can be from the following groups: The target speed of the rotor during centrifuge operation; The time T that the centrifuge runs at the target speed; The target temperature within the centrifuge rotor chamber that is cooled during centrifuge operation; ● The time course of the acceleration ramp at the beginning of the centrifuge operation and the deceleration ramp at the end of the centrifuge operation; The radius of the rotor installed in the rotor chamber; ●Start time, that is, the time when the centrifuge starts to operate, that is, the time when the rotor starts to rotate or the rotor reaches the target speed.

[0068] In the centrifuge of the invention, the centrifuge starts running as soon as the lid is closed, in particular locked, and cannot be started if basic parameters are not met, such as failure of a monitored component or a type or size of a rotor in the centrifuge that does not match the parameters previously used.

[0069] The centrifuge is started according to the last entered parameters and / or the last selected program or according to the basic parameters for the respective operation of the rotor used. The basic parameters depend on the type and size of the rotor used. The speed and the assigned program are usually also relevant.

[0070] This enables the centrifuge to be operated faster and in a simple manner, thus saving considerable time and costs.

[0071] Furthermore, the operating unit 16 may be designed as a modular unit and may be detached from the housing 14 , thereby easily providing customers with various configuration options, such as a touch display or a normal display.

[0072] List of labels: 10Centrifuge 12 Lid 14 Shell 14a Upper wall 14b circular groove in upper wall 14a 16 operation units 18. Security Container 20 Drive shaft 22 button input device 24 Rotary buttons - Input device 26 Touch display-input device 28 locking device 30 locking element 32 locking groove 34 driving motor of locking element 30 36 Lid switch 38 Control Unit 40a Left side position switch 40b Position switch on the right 42 Connecting elements 44 First trigger protrusion 46 Second trigger protrusion

Claims

1. A centrifuge (10), comprising: Housing (14); a rotor for receiving a sample container; A driver, used for driving the rotor; a rotor chamber located in the housing (14), wherein the rotor chamber is defined in a certain area by a safety container (18), and the rotor is installed in the rotor chamber; a control unit (38) for controlling the drive to centrifuge the sample in the sample container of the rotor; a cover (12) for closing the rotor chamber to operate the centrifuge; an operating unit (16) having a display (26) for displaying various parameters of the centrifuge operation and at least one input device (22, 24, 26) for inputting parameters of the centrifuge operation and / or for selecting centrifuge operation parameters and / or programs stored in the operating unit (16), wherein the selected parameters and / or programs can be transmitted from the operating unit (16) to the control unit (38); The control unit (38) is connected to at least one lid switch (36) by signal. When the lid (12) is in a closed state, the lid switch (36) can be activated as the lid (12) is closed. It is characterized in that, when certain basic parameters are further met, when the lid switch (36) is activated, the control unit (38) starts the drive of the rotor according to the parameters last input to the operating unit (16) and / or according to the program last selected to run the centrifuge.

2. The centrifuge according to claim 1, characterized in that The basic parameters are related to a specific type and / or a specific size of rotor that has been installed in the centrifuge.

3. The centrifuge according to claim 1 or 2, characterized in that: The basic parameters are the specific speed last entered, and / or the specific program last selected.

4. A centrifuge according to any one of the preceding claims, characterised in that At least one safety switch is provided which interacts with the control unit (38) and is in the form of a programmable controller which prevents activation of the drive of the rotor in the event of a malfunction of a component of the centrifuge (10).

5. The centrifuge according to claim 4, characterized in that The safety switch is connected to sensors for detecting malfunction of components of the centrifuge (10) and to the control unit (38), and the safety switch cooperates with the control unit (38) to start and stop the drive of the rotor.

6. A centrifuge according to any one of the preceding claims, characterised in that The operating unit (16), the display (26) and the input device (22, 24, 26) are combined in an electronic component, which is provided with an interface, namely a wired or wireless interface.

7. A centrifuge according to any one of the preceding claims, characterised in that The control unit (38) is connected to at least one imbalance sensor, a sensor for detecting the rotor speed, a temperature sensor, especially a temperature sensor arranged at different positions of the centrifuge, and a rotor type identification sensor signal, and evaluates their signals to control the rotor.

8. A centrifuge according to any one of the preceding claims, characterised in that Two lid switches (36) are provided, which are connected to the control unit (38) via a signal line, and the control unit (38) starts the drive of the rotor only when all the lid switches (36) are activated.

9. A centrifuge according to any one of the preceding claims, characterised in that The cover (12) is designed to be foldable about a pivot axis.

10. The centrifuge according to any of the preceding claims, in particular according to claim 7, characterized in that In order to activate one or more lid switches (36), the lid (12) has an activation device (28) associated with the lid switch (36) or each lid switch (36) for activating the associated lid switch (36), the activation device (28) being arranged in particular on a side remote from the pivot axis.

11. A centrifuge according to any one of the preceding claims, characterised in that The lid (12) has a locking mechanism which prevents the lid (12) from opening after the lid (12) is closed.

12. The centrifuge according to claim 11, characterized in that The locking mechanism includes a locking element (30) movable between a locking position and a releasing position.

13. The centrifuge according to claim 12, characterized in that A servo motor (34) moves the locking element (30) between a locking position and a released position.

14. The centrifuge according to claim 12 or 13, characterized in that A position sensor (40a, 40b) is provided to detect the position of the locking element (30) and is connected to the control device (38), which activates the drive of the rotor only when the locking element (30) is in the locked position.

15. A centrifuge according to any one of the preceding claims, characterised in that The display is also formed as an input device and is designed for this purpose as a touch display (26).

16. A centrifuge according to any one of the preceding claims, characterised in that In order to set all parameters and programs for the operation of the centrifuge, the input device (22, 24, 26) is provided as part of the operating unit (16), which is suitable for at least two independent movements.

17. The centrifuge according to claim 16, characterized in that At least one rotary button is provided as an input device (24).

18. A centrifuge according to any one of the preceding claims, characterised in that A single key (22) is provided as an input device.

19. A centrifuge according to any one of the preceding claims, characterised in that The operating unit (16) has a memory for storing various programs and / or parameters for controlling the operation of the centrifuge, and a microcontroller.

20. The centrifuge according to claim 19, characterized in that These parameters are from the following groups: - the target speed of the rotor during operation of the centrifuge; - The time T that the centrifuge runs at the target speed; - a target temperature in the rotor chamber of the centrifuge (10) to be cooled during operation of the centrifuge; - the time course of the acceleration ramp at the beginning of the centrifuge run and the deceleration ramp at the end of the centrifuge run; -The radius of the rotor installed in the rotor chamber; -Start time, i.e. the time when the centrifuge operation begins, i.e. the time when the rotor starts to rotate or the rotor reaches the target speed.

21. The centrifuge according to any one of claims 17 to 20, characterized in that The rotary button (24) is configured to switch between a rotational movement around its rotational axis and a vertical displacement movement along the rotational axis, and the display (26) displays the parameters and programs.

22. Method for operating a centrifuge according to any one of the preceding claims, characterized in that Once the lid (12) is closed, the centrifuge operation is started.

23. The method according to claim 22, characterized in that Once the lid (12) is locked, the centrifuge is started.

24. The method according to claim 22 or 23, characterized in that If a monitored component fails, the centrifuge cannot be started.

25. The method according to any one of claims 22 to 24, characterized in that Starts a centrifuge run according to the last entered parameters and / or last selected program.

26. The method according to any one of claims 22 to 25, characterized in that For certain rotor types only, the centrifuge run is started by closing the lid (12).

27. The method according to any one of claims 22 to 26, characterized in that The centrifuge operation is started by closing the lid (12) only for a certain rotation speed.

28. A method according to any one of claims 22 to 27, characterized in that For a predetermined program, the centrifuge operation is started by closing the lid (12).

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