Dynamica VELOCITY 18R User manual

VELOCITY 18R
Versatile Centrifuge
Instruction manual
Model VELOCITY 18R Versatile Centrifuge
V1708

i
MODEL VELOCITY 18R VERSATILE CENTRIFUGE
Thank you very much for choosing Dynamica Velocity 18R Centrifuge. To efficient and
safety operation, please carefully read through this instruction manual before using
Velocity 18R, and keep all the handbook of this instrument carefully.
Appearance or specification is subject to change without notice.
Dynamica

ii
Safety Reminder
Symbol is the general internationally safety sign, please read carefully and fully
understand the following safety precautions.
Carefully read all safety messages in this manual and the safety instructions on the
equipment.
Safety messages are labeled as followings. The safety symbol is in combination
with words of “WARNING” and “CAUTION” to notify users the potential danger; The
definitions of this two combination are as follows:
WARNING: Personal dangerousness
Warning notes indicate any condition or practice, which if not strictly observed, could
result in personal injury or possible death.
CAUTION: Possible damage to equipment
Caution notes indicate any condition or practice, which if not strictly observed or
remedied, could result in damage or destruction of the equipment.
NOTE: Notes indicate an area or subject of special merit, emphasizing either the
product’s capability or common errors in operation or maintenance.
Do not use the centrifuge in the way which does not mention on this manual, Please
contact Dynamica technician if you have any question.

iii
Safety Reminder
WARNING:
This centrifuge is not explosion-proof. Never use explosive or flammable samples.
Do not install the centrifuge in or near places where inflammable gases are
generated or chemicals are stored.
Make sure to prepare necessary safety measures before using samples that are
toxic, radioactive or contaminated with pathogenic micro-organisms.
If the instrument, the rotor, and or accessories that has been contaminated by
solutions with toxic, radioactive or pathogenic materials, clean it according to the
decontamination procedure that you specified.
If the contaminated equipment requires services of DYNAMICA or authorized
agency of DYNAMICA, either at the customer’s site, DYNAMICA or at the agent
facilities, sterilize and decontaminate it in advance. Make sure to notify the service
representatives of the use of such materials.
Do not handle the power cord or turn on or off the POWER switch with wet hands
to avoid electrical shocks.
Users or any hazardous materials are recommended to keep 30cm away from the
centrifuge when it is operating.
While the rotor is rotating, never override the door lock.
Unauthorized repairs, disassembly, and other services maintenance applied to the
centrifuge except by our service personnel are strictly prohibited。
When this product encounters disturbance of severe electrostatic discharge or
surge, it might have some degradation of performance like resetting or random errors
and so on. The operator should restart the equipment to recover the normal operation.
This is a class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.

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CAUTION:
The centrifuge must be located on a firm and level table.
Be careful not to get your finger or hands caught between the door hook and the
table when closing the door.
Do not move or relocate this centrifuge while the rotor is rotating.
If dew drops found in the rotor chamber, drain out the fluid through the drain hole to
prevent the sample to get mixed up with them and prevent them from leaking into the
drive unit.
Keep the chamber clean and remove any objects before running the instrument.
Cautions on rotors:
1）Always check for corrosion and damages on the rotor surface before using it. Do
not use the rotor or bucket if such abnormality is found.
2）Do not run this centrifuge over the allowable maximum speed of the rotor, buckets,
and adapters. If their maximum speeds vary, run it at the lowest maximum speed
among them.
3）Do not exceed the allowable imbalance tolerance.
4）Make sure the tubes and bottles within their actual capacities.
5）Make sure all the buckets are the same type at all times.
6）If the rotor is provided with a cover, make sure it is tightly rotated on the rotor
before the operation.
7）Use recommended rotors only. If any abnormal condition occurs during operation,
stop it immediately and contact our service representative. Notify the service
representative the error code.
Earthquakes may cause damage to the centrifuge. Contact our service
representative if abnormality observed.

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Contents
Safety Reminder...............................................................................................ii
1 Specification ...........................................................................................................1
2 Operational Condition..........................................................................................2
2.1 Basic operational conditions........................................................................2
2.2 Transport and storage condition..................................................................2
3 Installation...............................................................................................................3
3.1 Location...........................................................................................................3
3.2 Connection of the power cord and grounding...........................................3
3.3 Horizon adjustment .......................................................................................4
4 Structure...................................................................................................................6
5 Operation panel......................................................................................................7
6 Preparation (Rotor)................................................................................................9
7 Operation ...............................................................................................................12
7.1 Normal Operation........................................................................................12
7.2 RCF Operation.............................................................................................17
7.3 Programmed Operation..............................................................................18
7.4 Pulse Operation...........................................................................................19
7.5 Pre-cooling operation..................................................................................19
7.6 Browse the rotor information......................................................................20
8 Acceleration and Deceleration Rates.............................................................22
9 Temperature Control...........................................................................................23
9.1 Sample temperature during the run..........................................................23
9.2 High-temperature operation.......................................................................23
10 Maintenance........................................................................................................24
10.1 The daily maintenance .............................................................................24
10.2 Consumable Parts.....................................................................................25
11 Troubleshooting.................................................................................................26
11.1 Common malfunction list..........................................................................26
11.2 Identify the malfunction.............................................................................27
12 Frequent problems and solutions.................................................................28
12.1 How to open the door ...............................................................................28
12.2 How to remove the rotor stuck on the shaft ..........................................28
13 List of applicable rotors and tubes...............................................................30
13.1 Table of applicable rotors.........................................................................30
13.2 Cleaning and sterilizing tubes and bottles.............................................31
14 Rotating radii of applicable rotors................................................................33
15 Calculating relative centrifuge force (RCF)................................................33
16 Circuit connecting graph.................................................................................34
17 Guarantee............................................................................................................35
After-sales Service..................................................................................................35

1
Maximum speed
18,000rpm
Maximum RCF
27,070×g
Maximum capacity
1L (4×250ml)
Timer
1Minute~99hours59Minutes~HOLD function
Settable temperature
range
-20℃~40℃
Acceleration/deceleration
profiles
（0~9）/（0~9）(9 is the fastest curve)
Driving system
Inverted induction Motor
Refrigerant
R134a
Program memory
9
Safety features
Cover door with dual-locks, over-speed detector,
over-heat detector and imbalance detector, automatic
situation diagnosis system
Power requirements
220V: Single phase, ~220-240V±10%, 50/60Hz±1Hz,
1800VA
110V: Single phase, ~110V±10%, 60Hz±1Hz, 1800VA
Dimensions (mm)
730mm×610mm×380 mm(L*W*H)
Weight
About 100kg
Additional features
Rotor auto identification, Speed/RCF switch,
Pre-cooling function, Pulse operation, Processing
display
1 Specification

2
2 Operational Condition
2.1Basic operational conditions
1) Power: (220V) single phase, ~220-240V±10%, 50/60Hz±1Hz, 10A, standard sine wave;
(110V) single phase, ~110V±10%, 60Hz±1Hz, 25A, standard sine wave;
Install an emergency switch that turns off the main power supply in the event of
malfunction. It is ideal to install the emergency switch outside of the room or near the exit;
2) Ambient temperature: 2℃～40℃;
3) Relative humidity: ≤80%;
4) No vigorous vibration and airflow around;
5) No electric dust, explosive and corrosive gases around;
2.2 Transport and storage condition
1) Storage temperature: -40℃～+55℃;
2) Relative humidity: ≤93%.

3
3 Installation
This section describes the instructions that you should abide by when installing the
centrifuge. Before moving the centrifuge, the rotor must be removed.
WARNING:
This centrifuge may be damaged if it is connected to an improper power source.
Check if the power source meets the requirements specified on the plate at the
rear of this centrifuge.
3.1 Location
1）Locate this centrifuge on a firm and level table, ensure the four feet of this centrifuge
stand on the table firmly. Avoid installing on the slippery table otherwise the centrifuge will
have a bigger vibration.
2）Ideal environment temperature is 20℃±5℃. Temperature should not be over 30℃.
Avoid direct sunlight to the instrument.
3）Keep 300 mm distance on both sides and back of this centrifuge. This is a safe
distance of the centrifuge. After installing, this distance should be marked around the
centrifuge to ensure its cooling efficiency.
4）Make sure there is no water or heat around the centrifuge. Otherwise, it will result in
sample’s temperature increasing or malfunction of centrifuge.
WARNING: No any hazardous materials are within 30cm around the centrifuge to
avoid leaking due to heavy vibration of the centrifuge.
3.2 Connection of the power cord and grounding
WARNING:
Do not touch the power cord with wet hands to avoid electrical shocks.
This centrifuge must be properly grounded.
1) This centrifuge is equipped with a 3P flat plug, 1Pof 3P is for grounding. Grounding can
be done by plugging the 3P plug into the outlet.
2) The outlet must have bigger current capacity than 10A (for 220V instrument) or 25A(for
110V instrument), and its earth terminal is installed properly.

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3.3 Horizon adjustment
1) Turn on the power switch. After initialization, open the cover and turn off the power
switch. If the machine is not connected to the power supply, user may refer to the method
explained in section 12.1, and then open the cover.
2) Put the Level on the axis crown (see the following figure), and revolve the axis crown
for at least one circle and observe whether the air bubble is always in the central of the
level to check whether the centrifuge is horizontal.
3) If the centrifuge is not horizontal, adjust the four support feet under the bottom plate
(see the following figure) until the air bubble stay in the central of level. During adjustment,
user should rotate the axis crown continuously and check the position of air bubble. To
adjust the level, unscrew anticlockwise the lock screws to loosen them. Turn the support
feet clockwise to lower the centrifuge, vice verse. (Use the wrench in the accessory box if
needed.)
4) When the instrument is horizontal, make sure four support feet are firmly standing on
the table. Any suspended support foot is not allowed. Slightly press the top of the
Adjustable support feet
Level
Air bubble
Drive shaft (crown)
Lock nut

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centrifuge for checking.
5) Tighten the screws of each support foot after adjustment.
CAUTION:
Before moving the instrument, confirm that no rotor is installed on the drive shaft.
Before operating the instrument, confirm that the centrifuge is level.

6
4 Structure
Front Rear
Inner Chamber
Door
Power switch
Ventilation groove
Front board
Link
Power wire
Fan cover
Lock hook
Door seal
Operation panel
Centrifugal chamber
Knighthead
Drive shaft
Lock hole rubber
Observation window

7
5 Operation panel
Figure 5-1 Operation Panel
NO.
Symbol
Name
Function
⑴
LCD Screen
Displays running parameters and state(Figure 5-2)
⑵
Time button
Set a running time（1min~99hours59min~HOLD）
⑶
Temperature
button
Set a control temperature of the sample
⑷
Speed/RCF
button
Set speed or RCF
⑸
Deceleration
button
Set a deceleration rate.(1-9, 9 is the fastest)
⑹
Acceleration
button
Set an acceleration rate. (1-9, 9 is the fastest)
⑺
Increasing
button
Increase parameter values
⑻
Decreasing
button
Decrease parameter values

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⑼
Programmed
button
Store and recall running conditions（0-9groups）
⑽
Stop button
Make the Rotor stop rotating. The red lamp blinks
while decelerating and quenches when the rotor
stops rotating.
⑾
Start button
Make the rotor start spinning. The green lamp blinks
while accelerating and keeps lighting when the
speed reaches the set value.
⑿
Pulse button
Accelerate the rotor while this button is pressed.
The rotor slow down and stop while this button is
released.
⒀
Pre-cool
button
Press this button and turn into Pre-cooling mode.
⒁
Rotor button
Select the rotor number or inquire the rotor
parameters
⒂
Door button
Door lock is released when this button is pressed.
LCD screen displays the main interface as figure 5-2. The left part shows parameters of
the rotary speed, the temperature and the time. The right part shows the operation status
of acceleration, deceleration, rotor ID and program group etc.
The interface displays the operation parameters when the rotor is running, these
parameters can be modified only when the rotor stops or it reaches the setting point.
Please refer Section 7 for detail.
Figure 5-2 The LCD main interface
9
18000 rpm
4 ℃
2:30 h:m
14
9
7

9
6 Preparation (Rotor)
WARNING:
This centrifuge and the rotor are not explosion-proof. Never use explosive or
flammable samples.
There are restriction on the usage of biological samples and radioactive
substances that require biological isolation such as pathogens and recombinant DNA
for safety purposes. User must prepare necessary safety measures before treating with
samples containing such substances.
1) Prepare the sample
2) Put the sample into tubes or bottles
CAUTION: Sample may leak from the gap between the bottle and its cap if the
bottle is fully filled up.
Do not exceed the capacity that is specified in the instruction manual.
3) Balance the centrifuge tubes or bottles
CAUTION: The samples with different composition but same volume have different
sedimentation during centrifugation and will cause imbalance. Due to this, the sample
with same composition should be placed symmetrically.
See Table 6.1 or the rotor specification for imbalance tolerance of each rotor.
Although this centrifuge can accept eye balancing sample, we recommend that the
sample are well-balanced to prolong its service life.
Never intentionally run the centrifuge under unbalanced condition even though the
imbalance tolerance is not exceeded.
4) Inspect the rotor
CAUTION:
If any abnormality such as corrosion or scratches is found, stop using the rotor and
contact Dynamica service representative.
Other brand or type of rotor is forbidden on the instrument.
Check the rotor and the buckets for corrosion or scratch before use.
Check whether the swinging bucket rotor swings smoothly by slightly spinning the
rotor manually. Perform periodic maintenance on the rotor.
5) Set balanced tubes or bottles symmetrically on the rotor or rotor frame

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CAUTION: Make sure that the cover is put on the rotor and fixed securely.
Otherwise, the rotor or its cover may be dropped off while the instrument is running.
That might damage the centrifuge or the rotor.
6) Confirm the ID code of the rotor
This centrifuge can identify rotors automatically.
Each rotor is assigned with an ID code. After the rotor is identified, the optimum
temperature can be automatically obtained.And the function of over-speed protection and
the speed/RCF display can be realized.
The list of available rotor’s ID code, see Table 6.1.
Table 6.1 List of rotors
Rotor type
ID
code
Max.
speed
(rpm)
Max.
RCF
(×g)
Tube/bottle
Imbalance tolerance(*)
Mass
Imbalance
Capacity
Imbalance(**)
FA18A
14
18,000
27,070
10 ml tube
2.0 g/ tube
5mm/ tube
FA18B
36
18,000
24,990
1.5/2 ml tube
0.2 g/tube
5mm/ tube
FA15A
19
15,000
21,500
FA15B
16
15,000
21,800
50 ml tube
5.0g/ tube
5mm/ tube
FA15C
18
15,000
23,300
FA15D
17
15,000
20,900
80 ml tube
5.0g/ tube
2mm/ tube
FA12A
03
12,000
14,100
0.2 ml microtube
0.2 g/tube
5mm/ tube
FA10B
20
10,000
11,400
50 ml tube
5.0g/ tube
5mm/ tube
SW5
50
4,800
4,170
250 ml bottle
5.0g/ tube
2mm/ tube
SW5MP
55
4,800
3,120
96 well microplate
96 Deep well plate
-
-
SW4A
60
4,000
2,900
-
-
-
FA18C
01
18,000
28,978
10 ml tube
2.0 g/ tube
5mm/ tube
FA15E
06
15,000
22,600
5ml tube with V
bottom
1.0g/tube
2mm/tube
FA15F
04
15,000
22,600
5ml tube with round
bottom
1.0g/tube
2mm/tube
FA12B
02
12,000
13,840
1.5/2 ml tube
1.5g/ tube
5mm/ tube
FA14C
13
14,000
20,920
50 ml tube
5.0g/ tube
5mm/ tube

11
FA5A
07
5,600
4,700
15ml tube
2.0g/tube
4mm/tube
* : The imbalance tolerance given in the table indicate the mass imbalance or capacity
imbalance when the centrifuge tubes are place symmetrically.
** : Capacity imbalance provide a rough measure of balancing and it is not necessarily to
agree with mass imbalance.

12
7 Operation
WARNING:
Never open the door while the rotor is rotating or touch the rotation rotor.
For your safety, do not step into the area within 30 cm around the centrifuge while it
is running. Users are recommended to keep 30 cm away from the centrifuge when it is
running.
CAUTION:
Do not push or lean against the instrument while it is running.
Do not run the centrifuge with fragments of tubes or dew drops left in the rotor
chamber. Those matters may get mixed with samples or may cause the rise of the rotor
retention temperature.Always keep the rotor chamber clean.
If this centrifuge makes abnormal noise during its operation, stop it immediately
and contact our service representative. Notify the alarm code if displayed.
7.1 Normal Operation
1) Turn on the power switch.
This centrifuge first starts a self-checking process. Then the LCD Screen displays a
welcome interface (see Figure 7-1).
Initializing…
V1.22
Figure 7-1 Initialization interface
If the self-checking fails, the screen displays an error code on its right bottom corner.
Refer the error code in the table 11-1.
NOTE: When the power switch is turned on, this centrifuge will take 7 seconds to
self-check. During this time, the centrifuge will have no response to the buttons.
This centrifuge will move to a preparing interface after self-checking, and display the
running parameters of the last time. For example, the Figure 7-2 shows that the speed

13
was set to be 18000rpm, the temperature was 4℃, the running time was 2 hours and 30
minutes, the acceleration rate was 9, the deceleration rate was 7, the rotor ID was 14, and
the program group number was 9.
Figure 7-2 Preparation mode interface
Open the door
After self-checking has passed, user can open the door by pressing button. After 6
seconds, door lock will close automatically.
2) Gently lift up the door and set the rotor on the drive shaft.
CAUTION:
Make sure to use all the buckets when the swinging bucket rotor is used.
Otherwise the rotor may be deformed during the rotating and the buckets may be
moved off from the rotor.
Make sure the rotor could contact the drive shaft completely and their pin does not
overlap.
User should feel a click when the rotor is properly placed on the drive shaft. If you do
not feel anything, there may be something (e.g. dusts) stuck between the rotor and the
drive shaft and the rotor may be tilted. Check and clean the rotor or the shaft if needed.
Rotate the rotor slightly and check it. If the rotor has obvious shake, place the rotor
again.
3) Close the door and start running.
CAUTION:
Be careful not to get your fingers or hands caught between the door hook and table
when closing the door.
Make sure that the angle between the door and the table is more than 70 degree,
otherwise the door may fall down.
4) Set the operating parameter
CAUTION: Some buckets and adapters, and tubes, bottles and microplates that
18000 rpm
4
2:30 h:m
97
14
9

14
are sold on the market have lower allowable speeds (allowable RCF) than the rotor.
Use them at the lowest allowable speed or less.
(1) Select a rotor ID.
①Press the button.
The rotor symbol blinks, the rotor ID can be selected.
②Press or button to select the rotor ID.
The rotor ID code is given in Table 6.1or it can be obtained by rotor inquiring function
(refer to 7.6 section).
NOTE: This step can be omitted because all rotors are automatically recognized.
(2) Set the speed, running time, sample temperature, acceleration and deceleration rate.
①Press button.
Speed symbol blinks.
When the speed unit is RCF, it indicates you can input required RCF value. Then, press
the button again, the speed unit becomes rpm, now user can input speed value. In
the same way, user can also change rpm into RCF.
If no button is pressed after the symbol has been blinking for 7 seconds, the
symbol will stop blinking, close the inputting mode.
②Press and buttons to adjust the parameter.
The minimum speed you can set is 300 rpm with the interval of 100rpm.
The minimum RCF you can set is 100×g with the interval of 50×g.
When keep pressing and buttons, you can set the values in a fast mode.
There is a cycling function on and buttons. When pressing the
button to the maximum value, it will return to minimum value, vice verse for pressing
button.
NOTE: The centrifuge may shake slight when it is operated under 2,600rpm, this does
not indicate any problem.
③Press the button to set sample temperature.
When the temperature symbol blinks, the temperature is ready to be set.