DLab D3024, D3024R User Manual

D3024 & D3024R

High Speed (Refrigerated)

Micro-Centrifuge

Before using centrifuge, please carefully read this user manual for its efficient operation and safety.

USER MANUAL

Contents

Safety Reminder ............................................................................................................................................... 2

1. Specifications ............................................................................................................................................... 4

2. Declaration of Conformity ........................................................................................................................... 4

3. Required Operational Condition .................................................................................................................. 5

3.1 Basic operational Conditions.............................................................................................................. 5

3.2 Transport and storage condition ......................................................................................................... 5

4. Installation .................................................................................................................................................... 5

4.1 Location.............................................................................................................................................. 6

4.2 Connection of the power cord and grounding .................................................................................... 6

5. Structure ....................................................................................................................................................... 6

6. Operation panel ............................................................................................................................................ 8

7. Rotor Preparation ....................................................................................................................................... 10

7.1 Prepare the samples .......................................................................................................................... 10

7.2 Inject the samples into tubes. ........................................................................................................... 10

7.3 Keep the tubes balance ..................................................................................................................... 10

7.4 Inspect the rotor................................................................................................................................ 10

7.5 Symmetrically load centrifuge tubes in rotor ................................................................................... 10

8. Operation.................................................................................................................................................... 11

8.1 Normal Operation............................................................................................................................. 11

8.2 RCF Operation ................................................................................................................................. 14

8.3 Pulse Operation ................................................................................................................................ 15

9. Maintenance ............................................................................................................................................... 15

9.1 Cleaning ........................................................................................................................................... 15

9.2 Consumables .................................................................................................................................... 16

9.3 The replacement of seal rings........................................................................................................... 16

9.4 Routine inspection............................................................................................................................ 17

10. Troubleshooting........................................................................................................................................ 17

10.1 Possible problems and solutions..................................................................................................... 17

10.2 How to open the door ..................................................................................................................... 18

10.3 Replacement of fuses...................................................................................................................... 19

11. Instructions of rotor and tube ................................................................................................................... 19

11.1 The rotor instructions...................................................................................................................... 19

11.2 Tubes .............................................................................................................................................. 21

12. Calculate Relative Centrifuge Force(RCF) .............................................................................................. 22

13. Ordering information................................................................................................................................ 22

14. Warranty ................................................................................................................................................... 23

14.1 Warranty of the centrifuge .............................................................................................................. 23

14.2 Warranty of the rotor ...................................................................................................................... 23

15. After-sales Service.................................................................................................................................... 23

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Safety Reminder

Common safety precautions

Carefully read the following safety precautions for a thorough understanding.

⚫ Follow the instructions and procedures described in this manual to operate this centrifuge safely.
⚫ Carefully read all safety messages in this manual and the safety instructions on the instrument.
⚫ Safety messages are labeled as indicated below. They are in combination with signal words of

“WARNING” and “CAUTION” with the safety alert symbol to call your attention to items or
operations that could be dangerous to you or other persons using this instrument. The definitions of
signal words are as follows:

WARNING：Personal Danger

Warning notes indicate any condition or practice, which if not strictly observed, could result in personal
injury or possible death.

CAUTION：Possible damage to instrument

Caution notes indicate any condition or practice, which if not strictly observed or remedied, could result
in damage or destruction of the instrument.

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 operate this centrifuge in any manner not described in this User manual. When in doubt or have

any troubles with this centrifuge, ASK FOR HELP.

⚫ The precautions described in this User manual are carefully developed in an attempt to cover all the

possible risks. However, it is also important that you are alert for unexpected incidents. Be carefully
operating this centrifuge.

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.

⚫ Do not place dangerous material within 30cm around the centrifuge.

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⚫ Make sure to prepare necessary safety measures before using samples that are toxic, radioactive or

contaminated with pathogenic micro-organisms at your own responsibility.

⚫ If the instrument, 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 are
specified.

⚫ If you require services at site, please sterilize and decontaminate it in advance, and then notice the

service center involved in the details of the particular materials.

⚫ Do not handle the power cord or turn on or off the POWER switch with wet hands to void electrical

shocks.

⚫ For safety purposes, do not enter within 30cm around this centrifuge while it is in operation.
⚫ While the rotor is rotating, never forcedly release the door lock.
⚫ Unauthorized repairs, disassembly, and other services to the centrifuge except by our service center are

strictly prohibited.

CAUTION

⚫ This centrifuge must be located on one firm and level table.
⚫ Make sure the centrifuge is horizontal before running.
⚫ Make sure the angle between the door and cover is greater than 70 degrees when open the door.
⚫ Be careful not put your fingers or hands between the door and cover when the door off.
⚫ Do not move or relocate this centrifuge while it is running.
⚫ If fluid spills in the rotor chamber, please promptly clean and dry with a dry cloth to avoid sample

contamination.

⚫ Ensure to remove any objects and fragments of the tubes dropped inside the rotor chamber before

running this centrifuge.
⚫ Cautions on rotors
(1) Always check for corrosion and damages on the rotor surface before using it. Do not use the rotor if an
abnormality is found.
(2) Do not set the centrifuge speed beyond the allowable minimum speed of the rotor kits (rotor or
adapters). Make sure to run it below the allowable minimum speed.
(3) Do not exceed the allowable imbalance.
(4) Use the rotor and tubes within their actual capacities.
(5) If the rotor is attached with a lid, ensure it is tightened before operation.
⚫ If any abnormal condition occurs during operation, please stop it immediately and contact our service

center. Notify the service center is a warning code if displayed.
⚫ Vibrations are likely to damage the centrifuge, contact our service center if abnormality observed.

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1. Specifications

Maximum speed

15000rpm(200-15000rpm), increment: 10rpm

Maximum RCF

21380×g, increment: 10×g

Maximum capacity

2ml×24, 0.5ml×36, 4-PCR8 serial tubes

Temperature range

-20℃-40℃(D3024R)

Timer

30seconds -99minutes-HOLD, continuous operation

Driving Motor

Brushless DC motor

Safety devices

Dual door interlock、Over-speed detector、Over-temperature detector、
Automatic internal diagnosis

Power requirements
D3024:

Single-phase, 220V-240V, 50Hz/60Hz, 5A.

110V-120V, 50Hz/60Hz, 5A

D3024R:
Single-phase, 220V-240V, 50Hz/60Hz, 10A.

110V-120V, 50Hz/60Hz, 10A

Dimensions（mm）
D3024:（L）280×（W）364×（H）266

D3024R:（L）338×（W）580×（H）324

Weight

D3024: 12kg
D3024R: 30kg

Additional features

Speed/RCF switch、Pulse operation、Processing display、Voice reminder

2. Declaration of Conformity

Construction in accordance with the following safety standards:

EN 61010-1

EN 61010-2-10

Construction in accordance with the following EMC standards:

EN 61326-1/ FCC Part 15 Subpart B/ IECS 001

Associated EU guidelines:

EMC-guidelines: 2004/108/EC
Instrument guidelines: 2006/95/EC

This ISM device complies with Canadian ICES-001.

Changes or modifications not expressly approved by the party responsible for compliance could void the
user's authority to operate the equipment.

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NOTE: This centrifuge has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the centrifuge is operated in a commercial environment. The centrifuge generates, uses, and
can radiate radio frequency energy and, if not installed and used in accordance with the user manual, may
cause harmful interference to radio communications. Operation of centrifuge in a residential area is likely
to cause harmful interference in which case the user will be required to correct the
interference.

3. Required Operational Condition

3.1 Basic operational Conditions

（1）Power: 110V-240V, 50 Hz/60Hz, 3A.

D3024: Single-phase, 220V-240V, 50Hz/60Hz, 5A; 110V-120V, 50Hz/60Hz, 5A
D3024R: Single-phase, 220V-240V, 50Hz/60Hz, 10A; 110V-120V, 50Hz/60Hz, 10A

（2）Ambient temperature: 2℃-40℃.
（3）Relative humidity: ≤80%.
（4）No vibration and airflow around.
（5）No electric dust, explosive and corrosive gases around.

3.2 Transport and storage condition

（1）Storage temperature: -40℃-55℃.
（2）Relative humidity: ≤93%.

4. Installation

This section describes the instructions that you should abide when install the centrifuge to ensure your
safety and the optimum performance. Before moving the centrifuge, the rotor must be removed.

WARNING：

⚫ Improper power supply may damage centrifuge.
⚫ Make sure the power source conforms to the required power supply before connecting.

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4.1 Location

（1）Place the centrifuge on a firm, flat and level table, ensure the four feet of this centrifuge stand on the
table firmly. Avoid installing on the slippery surface or surface prone to vibration.
（2）Ideal ambient temperature is 20℃±5℃, avoid placing the centrifuge in direct sunlight if temperature

exceeds 30℃.
（3）Keep clear of the centrifuge at least 10cm on both sides and at least 30cm behind it to guarantee the

cooling efficiency.
（4）Keep away from heat or water to avoid sample temperature issues or centrifuge failures.

4.2 Connection of the power cord and grounding

WARNING：

⚫ To avoid electrical shocks, ensure your hands are dry when touching the power cord.
⚫ This centrifuge must be grounded properly.

A minimum 10A outlet providing a sufficient ground is required, and this must meet with local safety
requirements.

5. Structure

D3024

Door lock hook

Seal ring of door

Operation panel

Cover

POWER switch

Figure 5.1 D3204 Front view of centrifuge

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Door

View

Air vents

Outlet

D3024R

Figure 5.2 D3024 Rear view of centrifuge

Door lock hook

Seal ring of door

Cover

Operation panel

Outlet

POWER switch

Figure 5.3 D3024R Front view of centrifuge

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Door

View

Air vents

Figure 5.4 D3024R Rear view of centrifuge

6. Operation panel

Speed display area Temperature display area Time display area

15000

rpm

25 ℃ 12 min

（1）

（2）

（4）

（3）

（5）

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Figure 6-1 Operation Panel

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Item

Symbol Name

Function

1

Pulse button

When the door closed, press and hold the button to
accelerate running, release the button to stop it.

2

Open/ lock button

Press the button to open the door The button is not
available when the centrifuge is running.

3

Select button

Press the button to choose the parameter which you want to
modify.

4

Start/ Stop button

Press down the button to start running. The centrifuge will
brake to stop running if press the button during
centrifugation.

5

Parameter button

Clockwise rotate to increase parameter values.
counter-clockwise rotate to decrease parameter values.
Press down the button, shift between speed and RCF
display.

15000 25 ℃ 12 min

Figure 6-2 the main interface (D3024)

Main interface of D3024 model is as figure 6-2. The speed is set to be 15000rpm, temperature of centrifugal
chamber is 25℃, and the running time is12 minutes. When speed symbol is rotating, indicating the
centrifuge is running, the rotation is faster, the speed is higher. Temperature only displays the temperature of

chamber and can not be controlled. Time symbol displays the ratio of working to time setting. The total
time setting is divided into 10 scales.

15000 4 ℃ 12 min

Figure 6-3 The main interface (D3024R)

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Main interface of D3024R model is as figure 6-3. The speed is set to be 15000rpm, temperature of
centrifugal chamber is 4℃, and the running time is 12 minutes. When speed symbol is rotating, indicating
the centrifuge is running, the rotation is faster, the speed is higher. When temperature symbol is blinking,
indicating refrigeration is running, no blinking means refrigeration stop working.

Time symbol displays the ratio of working to time setting. The total time setting is divided into 10
scales.

7. Rotor Preparation

7.1 Prepare the samples

7.2 Inject the samples into tubes.

CAUTION：

⚫ Do not overload samples into the centrifuge which will cause leaking.
⚫ Do not exceed the actual capacity allowed in the user manual.

7.3 Keep the tubes balance

⚫ Although the centrifuge can accept sample balancing by eye, we recommend that you keep this

centrifuge in a well-balanced condition to extend its life expectancy.

⚫ Never intentionally run the centrifuge under unbalanced condition even though the allowable

imbalance is not exceeded.

7.4 Inspect the rotor

Check the rotor for corrosion or scratches before using.

CAUTION：

⚫ If any abnormality such as corrosions or scratches are found, stop using the rotor and contact our

service center.

⚫ Only manufacturer‟s rotors must be used with the unit.

7.5 Symmetrically load centrifuge tubes in rotor

CAUTION：

⚫ Make sure the rotor lid is securely fixed on the rotor, as well as the rotor and shaft are tightened.

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Otherwise, the rotor may be moved off while rotating and cause damage of the centrifuge and rotor.

⚫ Firmly tighten the rotor door with rotor.

8. Operation

CAUTION：

⚫ Do not push or lean against the centrifuge while it is running.
⚫ Do not run the centrifuge when fragments or sample solutions are left in the centrifuge chamber.

Always keep the centrifugal chamber clean.

⚫ If the centrifuge makes strange noise during operation, stop it immediately and contact our service

center. Notify them of the warning code if displayed.

8.1 Normal Operation

Turn on the power switch, centrifuge will start self-diagnostic checks, see figure 8-1 below:

HELLO 88 ℃ 88 min

Figure 8-1 Self-checking interface

After self-checking, instrument will display accumulative running time, see figure below:

00312 56 45

Figure 8-2 Accumulative running time interface

Figure 8-2 indicates the centrifuge has accumulated running time 312 hours 56 minutes and 45 seconds, and
then the centrifuge displays the last running values, see figure 8-3 below:

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rpm

15000 25 ℃ 12 min

Figure 8-3 Last running interface

⚫ Speed: 15000rpm. Running time: 12 minutes.

⚫ The door lock is released.

8.1.1 Load and replace the rotor

Figure 8-2 Load the rotor

CAUTION

⚫ Attach the rotor to the rotor shaft. Ensure the rotor is in position and connected with the shaft,

tightening the locking nut to secure the rotor with shaft, to prevent the rotor damaging the centrifuge.

⚫ Ensure the rotor lid is firmly tightened to the rotor.

⚫ Load the rotor to shaft to ensure rotor is in position until it connected with the shaft.
⚫ You should feel a „cli

ck‟

when the rotor is properly loaded to the shaft. If not, there may be something

stuck between the rotor and the shaft . Double check and clean it if necessary.

⚫ Rotate the rotor slightly with your fingers to check if the rotor vibrates. If so attach the rotor again.
⚫ Rotate the nut clockwise using the wrench to tighten the rotor to the shaft firmly.
⚫ Close the rotor lid, firmly tighten clockwise the lid to the rotor and ensure is in position. Close the door

and then start running.

⚫ The method of removing the rotor is as same as the above mentioned by turning the locking nut

counterclockwise.

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8.1.2 Standby Cooling ( D3024R )

When the centrifuge is powered on, the refrigeration system will cool down the chamber to the setting
temperature.

⚫ The standby cooling will run automatically and control the chamber temperature once the lid is close.
⚫ The standby cooling will stop running once the lid is open.

Note：

⚫ When standby cooling is running, please don‟t open the lid frequently to avoid gathering excessive

water steam.

⚫ To extend the life time of centrifuge, recommended don‟t set the temperature under - 4℃ by standby

cooling.

8.1.3 Set the operation parameters

Press the button to select required parameters. The parameter can be modified when the parameter is
flashing. Clockwise rotate the parameter button to increase parameter value; counter-clockwise rotate the
parameter button to decrease parameter value. Parameter button rotate faster, parameter value

increase faster. The minimum speed increment is 100 rpm, the minimum time increment is 1 second.
（1）Set the speed

⚫ Press the select butt on until the speed rpm is displayed.
⚫ When the speed button is selected, the speed symbol will flash the speed value.
⚫ The minimum speed value you can set 500rpm, the minimum increment is 100rpm.

⚫ Rotate program button clockwise to increase speed value, rotate the program button anti-clockwise

to decrease speed value.

⚫ You can speed-up set the speed value by rotating program button quickly.
⚫ There is a circulating function to increase/decrease the speed values. Rotate the program button

clockwise to change settings from small → large → maximum → minimum. Rotate the program

button anti-clockwise to change settings from large → small → minimum → maximum.

（2）Set the time

⚫ Press button , time value flashes in the time setting mode.
⚫ Rotate the program button to set running time from 30 seconds to 99 minutes.

⚫ When time displays HD, this is a continuous running mode.

(3) Set the temperature (D3024R):

⚫ Press select button , temperature value flash into temperature setting mode.
⚫ Rotate the program button , and input temperature value range from -20℃ to 40℃.
⚫ When temperature symbol flash, indicating refrigeration system is running, not flashing indicates the

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refrigeration is not running.

8.1.4 Start the operation

（1）Press button to start running

⚫ The door should be locked before rotor starts rotating.
⚫ Timer will operate once the speed setting value is reached, the screen displays the remaining run time.

（2） View and modify the operation programs

⚫ Pressing button , returns the display to the program interface and displays settings programs. Press

the select button to the desired program. When flashing, rotate parameter button to modify
values. Release the button after 5 seconds, and the centrifuge will return to normal operation mode and

run according to the new value.

⚫ If the set time value has been modified, the operation time is not affected and will continue.
（3）Warning display

⚫ If an error occurs during the operation, the centrifuge will brake to stop automatically, and display the

error code on the time/display area. The error code can be checked in the table 10-1, and corrective
actions can be applied accordingly.

8.1.5 End the operation

（1）The centrifuge will brake when it reaches the setting time or button is pressed.
⚫ When the rotor stops rotating, centrifuge will start beeping to alert the operation has finished.

（2）Open the door

⚫ The door can be released automatically when the operation has stopped (D3024).
⚫ The centrifuge keeps the door close when operation has stopped ( D3024R ).

⚫ With the door closed, you are able to press the button to open it.
⚫ After ending the operation, the program will store the setting parameters of this operation, and will

recall these parameters when restart the program.

（3）Open the door and take out the rotor and samples.

8.2 RCF Operation

（1）Turn on the power switch.
（2）Set a RCF (Relative Centrifugal Force) value.

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CAUTION：

● Do not exceed the allowable maximum RCF value of the rotor and adapters.

⚫ Press the select button and choose speed unit ×g, the speed symbol will flash into RCF value

input status.

⚫ If no button is pressed after the speed value has flashed for 5 seconds, the input mode will be shut

down.

⚫ Rotate program button to input a RCF value, RCF increment is100×g.
（3）Set operating conditions

The other operation, please refer to the section 8.1.

8.3 Pulse Operation

This function is used to remove the residual samples adhered on the interior of the tubes.

Note：The button works only when the rotor stopped and the door is locked.

（1）Turn on the power switch and load the rotor to the shaft, tighten the rotor lid and make sure it is in
secured position, and then close the door.

（2）The centrifuge gets into preparation mode and displays last running values. The values can be reset.

（3）Press knob and hold, the centrifuge will speed up to the setting speed. While releasing

knob during acceleration, the centrifuge will start to decelerate and stop.

9. Maintenance

9.1 Cleaning

CAUTION

⚫ If do not follow the recommended instructions for cleaning or disinfecting may damage the centrifuge.

（1）Centrifuge
⚫ If the centrifuge is exposed to ultraviolet rays for a long time, the color of the doors may be changed or

the label may be came off. After using, cover the centrifuge with a piece of cloth to protect it from

direct exposure.

⚫ If the centrifuge needs cleaning, clean it with a cloth or sponge moistened with a neutral detergent

solution.

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⚫ Sterilize the centrifuge by wiping with a cloth moistened with 70% ethanol solution.
（2） Rotor chamber

CAUTION

⚫ Do not directly pour water, neutral detergent or disinfectant solution into the rotor chamber. Otherwise

fluids may leak into the drive units and cause corrosion or deterioration to the bearings.

⚫ If the rotor chamber needs cleaning, clean with cloth or sponge moistened with a neutral detergent

solution. Sterilize the centrifuge by wiping with a cloth moistened with 70% ethanol solution.
（3）Drive shaft
⚫ We recommend regular maintenance for drive shaft. You can wipe the drive shaft with soft cloth, and

then apply a thin coat of silicon grease.
（4）Door
⚫ Clean and sterilize the door using the same method as the step (1) above.

（5）Rotor
⚫ To prevent corrosion, remove the rotor from rotor chamber. If not in use for a lone term, then detach

the rotor lid and turn upside down to dry the tube holes and keep clean.
⚫ For sample leaks in the rotor, rinse the rotor with water. Apply a thin coat of silicon grease to the rotor

when it is completely dry.
⚫ The rotor should be regular maintenance, recommend to cleaning it each 3 months to ensure tube and

rotor holes keep clean, and then apply a thin coat of silicon grease.
(6) Drain (D3024R)

⚫ The centrifuge is equipped with drain pipe for excess water. Drain off water when water is in drain

pipe.

9.2 Consumables

Replaceable wearing parts listed below. It is recommended to replace these according this table.

Item.

Replacement parts

Replacement conditions

1

Seal ring of door

Cracked

2

Rubber block of temperature sensor

3

Seal ring of centrifuge chamber (3024R)

9.3 The replacement of seal rings

9.3.1 Instructions
There are three high-temperature rubber seal rings that equipped into rotor to achieve bio-safe. The seal
rings may fall off or aging after several autoclaving, need to be replaced or re-installed.

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Seal ring 1 2 3

Seal ring 2 3

Figure 9-1 Seal rings of rotor

9.3.2 Replacement methods

（1）Clean the seal ring slot with neutral detergent solution and make it dry.
（2）Evenly coated with glue (501) in the seal ring slot and keep the seal ring into slot, press evenly to make

it contact enough with the slot bottom and bond firmly.
（3）Place for 20 minutes and waiting for the glue to completely solidified.

9.4 Routine inspection

(1) Check that if the centrifuge is on a firm、flat and level table, ensure the four feet stand on the table
firmly.

(2) Check if the centrifuge grounded properly: Use multi-meter to check if is short circuit between the
power cord grounding pin and the motor shaft. If yes, indicating grounded properly; if is open circuit, need
to check failure reason first and make troubleshooting before use.

10. Troubleshooting

10.1 Possible problems and solutions

This centrifuge has a self-diagnostic function. If a problem occurs, an error/warning code will be displayed
on the time display screen and the operator can determine the malfunction with the warning code below.

Symptom

Causes

Solutions

Nothing appears on the screen when the
POWER is turned on.

·

Building power circuit

breaker trips.

·

the fuse was blown out.

·

Remove the trouble and

turn on the POWER.

·

Replace the fuse.

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Error code appeared on

the time display screen

E-02

Door fault

·

The door opened in running.

·

Press the button

while the door opening.

·

Close the door

immediately.

·

Close the door，and then

start to operate.

E-04

Temperature

fault

·

The air inlets are blocked.

·

Radiator fan is damaged.

·

Clean air inlets.

·

Replace radiator fan.

E-06
Set wrong
parameter

·

The setting parameter

exceed the allowable range.

·

Modify the parameter

value.

E-10～86

·

Read the maintenance

manual.

·

Contact with service

center.

Table 10-1 Possible problems and solutions

10.2 How to open the door

10.2.1 In the case of po wer on

CAUTION

⚫ The door just can be opened while the power on and rotor stops rotating.

（1）Turn on the POWER switch, the door lock will release automatically.
（2）The door lock will release automatically once the operation finished.

（3）It is available to release the door by pressing button once the rotor stops.

10.2.2 In the case of power outage
The door cannot be opened automatically if there is a power outage. It is available to be opened manually.

（1）Ensure if the rotor has stopped rotating.
⚫ Listen carefully to ensure no rotating sound can be heard.

（2）Insert a screw driver into the hole to open the door.

⚫ Hole is located on the top right side of the unit.
⚫ Insert a screw driver into the hole and push forward to release the door.

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10.3 Replacement of fuses

⚫ （1）There are two fuses of D3024, 250V, 5A time-delay type, size: Ф5×20. There are two fuses of

D3024R, 250V, 10A time-delay type, size: Ф5×20.

⚫ （2）The fuse holder is located in the power inlet. Pull out the fuse holder from power inlet and replace

the fuses if necessary.

11. Instructions of rotor and tube

CAUTION：

⚫ Read the instructions thoroughly, correct use rotor.
⚫ Do not exceed the allowable maximum speed of rotor、tube and adapters etc., be care that the allowable

maximum speed of some adapters are lower than the rotor‟s maximum speed.

11.1 The rotor instructions

11.1.1 Rotor structure

Knob Locking nut Cover

Seal ring Shaft hole

Figure 11-1 The rotor structure

11.1.2 Available rotors and adapters

All rotors are used for bio-safe when the rotor lid was tightened with the rotor, centrifuge tubes will be

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enclosed into rotor to ensure the sample does not leak in centrifugal process. If rotor lid is not available, the
rotor would be no bio-sealing function. The rotors can be used as follows:

Rotor

type

ID

code

Tube/bottle

Adapter

Maximun

speed
(rpm)

Maximum
centrifugal

radius

r

max

(cm)

Maximum RCF

Rcf (×g)

1

AS24-2

2/1.5ml tube

15000

8.5

21380

0.2ml PCR tube

A02P2

15000

6.9

17350

0.5ml micro
tube

A05P2

15000

7.6

19100

2

AS36-05

0.5ml micro
tube

15000

8.5

21380

PCR8 serial

tube

A02P05

15000

7.6

19100

3

AS4-PCR8

PCR8 serial

tube

6.5/7.2

16350/18100

Table 11.1 Rotors and adapters

11.1.3 Notice

(1) The centrifuge rotor can separate sample which density lower than 2.0g/ml, if the samples density is

over 2.0g/ml, please calculate allowable speed depending on the following formula.

Allow Speed (rpm)= Maximum speed×(2.0(g/ml)/Sample density (g/ml))

1/2

（2）To prevent corrosion, remove the rotor from rotor chamber if do not use for a lone term, then detach

the rotor lid and upside the rotor down to dry the tube holes.

（3）If some samples leaked in the rotor hole, wash the hole with water, apply a thin coat of silicon grease

on the rotor surface after drying.

（4）It is necessary for a regular maintenance for rotor, recommend to clean it each 3 months to keep

cleaning of tube hole and shaft hole, and then apply a thin coat of silicon grease on it.

11.1.4 Autoclaving
The rotor is manufactured in high-strength aluminum alloy material and can be autoclaved:

121℃ (1.0kg/cm2),

20 minutes.

11.1.5 Bio-safe seal ring
The rotor is sealed by bio-safe structures, achieved using three high-temperature rubber seal rings. The seal
rings may fall off or aging after several autoclaving, need to be replaced or re-installed. The replacement
methods please refer to the section 9.3.

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11.2 Tubes

11.2.1 Cleaning and sterilizing tubes

Condition Material

PA

PC

PP

Cleaning

Cleaning fluids

Acidic（pH5 or lower）

X X X

Acidic（higher than pH5 ）

O O O

Alkaline（higher than pH9 ）

O X O

Alkaline（pH9 or lower）

O O O

Neutral（pH7）

O O O

Warm water(up to 70℃)

O O O

Ultrasonic cleaning

Neutral detergent（pH7）

O O O

Sterilization

Autoclaving

115℃（0.7kg/cm2）30minutes

O O O

121℃（1.0kg/cm2）20 minutes

X O O

126℃（1.4kg/cm2）15 minutes

X X X

Boiling

15 to 30 minutes

O O O

Ultraviolet sterilization

200-300nm

X X X

Gas sterilization

Ethylene oxide

O X O

Formaldehyde

O O O

PA: Polyallomer；PC：Polycarbonate；PP：Polypropylene

11.2.2 Cleaning PC tubes
PC materials are low in chemical resistance against alkaline solutions. Avoid using neutral detergents with
pH higher than 9. Note that pH of some neutral detergents are still higher than 9 even if diluted according to
the instruction in the maker‟s catalog. Use detergent with its pH between 7 and 9.

11.2.3 Autoclaving PA、PC and PP tubes

PA begins softening at about 120℃, PC and PP at about 130℃. Autoclave PA tubes at 115℃（0.7kg/cm2）for
30 minutes and PC and PP tubes at 121℃（0.1kg/cm2）for 20 minutes. If a certain temperature is exceeded,
the tubes may be deformed.
When using a sterilizing chamber, please operate as follows:

（1）Place tubes in vertical position, mouths upward. If tubes are placed sideways, they may deform

into an oval shape due to gravity.

（2）Remove screw nuts and inner covers to prevent from deformation or rupture.
（3）Wait until the sterilizing chamber cools down to the room temperature before the tubes are

removed.

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11.2.4 Condition and life expectancy of tubes
The life expectancy of plastic tubes depends on the characteristics of samples, speed of the rotor used, and
temperature applied, and so on. When the plastic tubes are used for centrifuge of ordinary aqueous samples
(pH between 5 and 9), their life expectancies are defined as follows.
Be operated at the maximum speed:

High quality tubes (PA、PC、PP): 30-50 operations
Ordinary tubes(PA、PC、PP): around 10 operations（Using in low speed can extend the tube life）.

Life expectancy of tubes also depends on the pretreatment conditions such as cleaning and sterilization,
lifetime can be cut down.
Notice: Do not use damaged or cracked tubes.

12. Calculate Relative Centrifuge Force(RCF)

Relative Centrifuge Force (RCF) can be determined with the following calculation formula.
RCF=1.118×r×n2×10

-5

R—rotating radius, unit: cm; n—rotating speed, unit: rpm

13. Ordering information

Cat. No.

Model

Descriptions

912015137777

D3024

High Speed Micro-Centrifuge，with AS24-2 rotor kits, US
plug, 110V/50Hz/60Hz

912115127777

D3024

High Speed Micro-Centrifuge，with AS24-2 rotor kits, Cn plug,
220V/50Hz/60Hz

912215127777

D3024

High Speed Micro-Centrifuge，with AS24-2 rotor kits, Euro
plug , 220V/50Hz/60Hz

912315127777

D3024

High Speed Micro-Centrifuge，with AS24-2 rotor kit s, UK
plug, 220V/50Hz/60Hz

922015137777

D3024R

High Speed Refrigerated Micro-Centrifuge，with AS24-2 rotor
kits, US plug, 110V/50Hz/60Hz

922115127777

D3024R

High Speed Refrigerated Micro-Centrifuge，with AS24-2 rotor
kits, Cn plug, 220V/50Hz/60Hz

922215127777

D3024R

High Speed Refrigerated Micro-Centrifuge，with AS24-2 rotor
kits, Euro plug, 220V/50Hz/60Hz

922315127777

D3024R

High Speed Refrigerated Micro-Centrifuge，with AS24-2 rotor
kits, UK plug, 220V/50Hz/60Hz

Accessories

19400002

AS24-2

Rotor kits with cover, fixing clips and O'ring, 15000rpm,
2ml*24, used with D3024 & D3024R

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24

19400003

AS36-05

Rotor kits with cover, fixing clips and O'ring, 15000rpm,

0.5ml*36, used with D3024 & D3024R

19400004

AS4-PCR8

Rotor kits with cover, fixing clips and O'ring, 15000rpm,
4-PCR8, used with D3024 & D3024R

19500001

A02P2

0.2ml rotor adapter, used with A12-2 & AS24-2 rotors，
24pcs/pk

19500002

A05P2

0.5ml rotor adapter, used with A12-2 & AS24-2 rotors，
24pcs/pk

19500003

A02P05

0.2ml rotor adapter, used with AS36-05 rotor，36pcs/pk

14. Warranty

14.1 Warranty of the centrifuge

This centrifuge is guaranteed for two years from the date of delivery provided that it has been operated and
maintained properly.

14.2 Warranty of the rotor

The rotor is guaranteed for 5 years from the date of delivery upon manufacture. Please pay attention, do not
use the rotor once it has been corrosion or fatigue damage. We do not guarantee this centrifuge and the rotor
under the following conditions even if within the guarantee period expires:

（1） Failures caused by incorrect installation.
（2）Failures caused by rough or improper handling.
（3）Failures caused by conveyance or relocation after installation.
（4）Failures caused by unauthorized disassembly or modification.
（5）Failures caused by using parts of the other companies, such as rotors and adapters.
（6）Failures caused by natural disasters including fire, earthquakes and so on.

（7）Consumables and parts have a limited guarantee period

15. After-sales Service In

order to ensure to operate centrifuge safely and efficiently, it is necessary for regular maintenance. If
centrifuge has problems, do not attempt to repair it by yourself. Contact our sales or service center.

DLAB Scientific Inc.

Add: 775 Rivera St, Riverside, CA 92501, USA

Tel: [phone]

Fax: [phone]

E-mail: [email protected]

web: www.dlabsci.com