DLAB Laboratory Instruments DM0412S User manual

DM0412S
Clinical Centrifuge
DLAB Laboratory Instruments
Before using centrifuge, please carefully read this user manual for efficient operation and safety.
Contents
www.dlabsci.com

Copyright: ......................................................................................................................................................1
Safety Reminder.............................................................................................................................................2
1. Specifications.........................................................................................................................................4
2. Required Operational Conditions...............................................................................................................4
2.1 Basic operational conditions ............................................................................................................4
2.2 Transport and storage conditions......................................................................................................5
3. Installation..................................................................................................................................................5
3.1 Location............................................................................................................................................5
3.2 Connection of the power cord and grounding..................................................................................5
4. Structure.....................................................................................................................................................6
5. Operation panel..........................................................................................................................................6
6. Rotor Preparation .......................................................................................................................................7
6.1 Prepare the samples..........................................................................................................................7
6.2 Inject the samples into tubes ............................................................................................................7
6.3 Keep the tubes balanced...................................................................................................................7
6.4 Inspect the rotor................................................................................................................................7
6.5 Symmetrically load centrifuge tubes into rotor................................................................................7
7. Operation....................................................................................................................................................8
7.1 Start the operation ............................................................................................................................8
7.2 Stopping the centrifuge ....................................................................................................................8
8. Maintenance...............................................................................................................................................8
8.1 Cleaning ...........................................................................................................................................8
8.2 Rotor Installation..............................................................................................................................9
9. Trouble shooting.......................................................................................................................................10
10. Instructions for the rotor and tubes.........................................................................................................10
10.1 Rotor instructions......................................................................................................................... 11
10.2 Tubes............................................................................................................................................12
11. Returning and Disposal..........................................................................................................................13
11.1 Returning Devices........................................................................................................................13
11.2 Disposal........................................................................................................................................13
12. Ordering information..............................................................................................................................14
13．Warranty...............................................................................................................................................14
13.1 Warranty of centrifuge..................................................................................................................14
13.2 Warranty of the rotor....................................................................................................................14
After-sales service........................................................................................................................................15

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Copyright:
No part of this manual may be reproduced or transmitted without prior written permission of DLAB .
We can not be responsible to inform at real-time if the outline and specifications of centrifuge are subject
to change for improvement.
VERSION1.0
2012 August release

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

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Do not place dangerous materials within 30cm of the centrifuge.
Prepare all necessary safety measures before using samples that are toxic, radioactive or contaminated
with pathogenic micro-organisms. Use of these is at your own responsibility.
If the centrifuge, rotor and accessories that have been contaminated by solutions with toxic, radioactive
or pathogenic materials, clean it according to the decontamination procedure as specified.
If you require service at site, please sterilize and decontaminate the centrifuge in advance, and then
notify the service center the details of the materials and procedure.
To avoid electrical shocks, insure hands are dry before handling the power cord or turning on/off the
power switch.
For safety purposes, do not enter within 30cm around this centrifuge when it is in operation.
While the rotor is rotating, never release the door lock.
Unauthorized repairs, disassembly, or modifying the centrifuge except by our service center are strictly
prohibited.
CAUTION
This centrifuge must be located on a firm and level table.
Make sure the centrifuge is horizontal before running.
Do not move or relocate the centrifuge when 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 the centrifuge.
Cautions with rotor
(1) Always check for corrosion and damage on the rotor surface before using it. Do not use the rotor
if an abnormality is found.
(2) Do not set the speed beyond the allowable minimum speed of the rotor kits (rotor and adapters).
Make sure to run it below the allowable maximum speed.
(3) Do not exceed the allowable imbalance.
(4) Use the rotor and tubes within their actual capacities.
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
4500rpm(500-4500rpm), increment: continue
Maximum RCF
2490×g
Maximum capacity
10ml×12, 15ml×8
Timer
1min -30minutes
Noise
56dB(A)
Driving Motor
DC motor
Safety devices
Door interlock, Over-speed detector
Power requirements
Single-phase, 110V-120V, 50Hz/60Hz, 3A.
220V-240V, 50Hz/60Hz, 3A
Ambient condition
-Set-up site
-Altitude
-Ambient temperature
-Humidity
-Excess-voltage category
-Pollution degree
Indoor only
Up to 2000 m above sea level
2°C ～40°C
80%
II
2
Device protection class
I
Dimensions（mm）
（L）280×（W）364×（H）266
Weight
6kg
2. Required Operational Conditions
2.1 Basic operational conditions
（1）Power: 110V-120V, 50Hz/60Hz, 3A.
220V-240V, 50Hz/60Hz, 3A.
（2）Ambient temperature: 2℃~40℃.
（3）Relative humidity: ≤80%.
（4）No vibration and airflow around.
（5）No electric dust, explosive and corrosive gases around.

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2.2 Transport and storage conditions
（1）Storage temperature: -40℃~55℃.
（2）Relative humidity: ≤93%.
3. 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.
3.1 Location
（1）Place this centrifuge on a firm、flat and level surface, ensure the four feet of this centrifuge stand on
the counter firmly. Avoid installing on a 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.
3.2 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.
An minimum 10A outlet providing a sufficient ground is required, and this must meet local safety
requirements.

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4. Structure
Figure 4.1 Front view of the centrifuge
Figure 4.2 Rear view of the centrifuge
5. Operation panel
Figure 6-1 Operation panel
Power inlet
Power switch
Air vents
View
Door hole
Door lock hook
Rotor
Operation panel
Door release hole
Error
Hatch Door
Speed Adjusting
RUN/STOP
Time adjusting
Seconds
Minute

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Main interface is as figure 6-1. Left knob is setting speed, rotate the knob at the scale you want to set;
right knob is setting the time, rotate the time knob at the scale you want to set, then the centrifuge will run.
At the same time, the speed lamps will display when the speed arrives at the position.
6. Rotor Preparation
6.1 Prepare the samples
6.2 Inject the samples into tubes
Do not exceed the actual capacity allowed in the user manual.
6.3 Keep the tubes balanced
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 an unbalanced condition even though the allowable
imbalance is not exceeded.
6.4 Inspect the rotor
Check the rotor for corrosion or scratches before using.
CAUTION
If any abnormality such as scratches are found, stop using the rotor and contact our service center.
Only manufacturer’s rotors must be used with the unit.
6.5 Symmetrically load centrifuge tubes into rotor
CAUTION
Make sure the rotor is securely fixed on the shaft. Otherwise, the rotor may be moved off while
rotating and cause damage to the centrifuge and rotor.
CAUTION
Do not overload samples into the centrifuge which will cause leaking.

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7. Operation
7.1 Start the operation
Turn on the power, waiting the display screen light up.
Press the speed button to do the speed adjusting.
Press the time button to do the time adjusting(set up time more than 60 seconds, the “MIN”light will
be light up. Less than 60 seconds, the “SEC”light will be light up ).
Press the “RUM/STOP”button, starting the centrifuge.
7.2 Stopping the centrifuge
The centrifuge will be stop running when set up time is out.
Press the “RUN/STOP”button to shut down the centrifuge.
Open the hatch door during the centrifuge is running, the centrifuge will braking and stop,
8. Maintenance
8.1 Cleaning
CAUTION
If do not follow the recommended instructions for cleaning or disinfecting this may damage the
centrifuge.
（1）Centrifuge
If the centrifuge is exposed to ultraviolet rays for a long time, the color of the door may be changed or
the label may be peel 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.
Sterilize the centrifuge by wiping with a cloth moistened with 70% ethanol solution.
（2）Rotor chamber
CAUTION
If the centrifuge makes strange noise during operation, stop it immediately and contact our service
center.

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If the rotor 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 section（1）above.
（5）Rotor
For sample leaks in the rotor, rinse the rotor with water，and dry it completely.
The rotor should be checked every 3 months to ensure the tube and rotor holes keep are clean.
8.2 Rotor Installation
（1）Installation
①②
③④
（2）Adjustment
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.
Observe here!

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9. Trouble shooting
Symptom
Causes
Solutions
Power lamp does not light when
the POWER is turned on.
·Building power circuit breaker
trips.
·Remove the trouble and turn on
the POWER.
Abnormal vibration
·Rotor do not match with spindle
·Samples are imbalance
·Install again the rotor
·Weighting scales, install
symmetrically
Possible reasons that the centrifuge can not work well
Door fault
·The door opened in running.
·Door switch failure.
·Close the door immediately.
·Replace the door switch
No speed signal
·The centrifuge runs at very low
speed
·Check the speed sensor,
reconnect it again or replace it.
Over speed
·The centrifuge runs at much
bigger than the maximal speed
·Contact with service center
Table 9-1 Possible problems and solutions
10. Instructions for the rotor and tubes
CAUTION
Read the instructions thoroughly, to properly load and use rotor.
Do not exceed the allowable maximum speed of rotor、tube and adapters etc. Ensure the allowable
maximum speed of adapters is lower than the rotor’s maximum speed.
Before lock the rotor, rotate it, and observe carefully if
there is obvious vibration, if so, please take off the
rotor, turn some angle and install it again, until the
rotor rotates smoothly, then, lock it firmly.

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10.1 Rotor instructions
1) Rotor structure
Figure 10-1 The rotor structure
1) Available rotors and adapters
Rotor
type
Tubes
Tubes
Per
Rotor
Dimension
(Ф×L
mm)
Adapters
Maximum
speed（rpm）
Radius
cm
Maximum
RCF
(×g）
A12-10P
15ml con
8
17×120
4500
11
2490
1.5-5ml vacu
12
13×82
A10P15
mat
4500
9.8
2218
4-7 ml vacu
12
13×106
A10P15
4500
11
2490
16×75
A10P15
Mat
9.8
2218
8.5-10 ml vacu
12
16×107
A10P15
4500
11
2490
2.7-3
(EU) ml
collection tube
12
11×66
A10P15
mat
4500
9.8
2218
7.5-8.2
(EU) ml
collection tube
12
15×92
A10P15
4500
11
2490
Table 10.1 Rotors and adapters
adapter mat adapter screw nut rubber cap
Rotor body mat Spindle hole

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2) Notice
The centrifuge rotor can separate samples with a density lower than 2.0g/ml. If the samples density is
over 2.0g/ml, please calculate allowable speed depending on the following formula.
)/density(ample
)g/（0.2
max)speed(llow
mlgs
ml
speedrpma 
●Calculate RCF
An 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
3) Autoclaving
A12-10P rotor is made of plastic, cannot be high-pressure sterilization and UV irradiation, only ordinary
sterilization can be used.
10.2 Tubes
1) Cleaning and sterilizing tubes O：Applicable X：Inapplicable
Conditions Materials
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
Table 10.2 Cleaning and sterilizing conditions for tubes
1) Cleaning PC tubes
PC material is 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

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to the manufacturer’s instructions. Use detergent with its pH between 7 and 9.
2) 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, PC and PP tubes at 121℃（0.1kg/cm2）for 20 minutes. If a certain temperature is exceeded,
the tubes may be deformed.
When use 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 locking nut and lid to prevent from deformation or rupture.
(3) Wait until the sterilizing chamber cools down to the room temperature before removing tubes.
4) Conditions and life expectancy of tubes
The life expectancy of plastic tubes depends on the characteristics of samples, speed of the rotor used,
temperature applied and so on. When the plastic tubes are used for ordinary aqueous samples (pH between
5.0 and 9.0), 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.
11. Returning and Disposal
11.1 Returning Devices
Before returning the device, a transport securing device has to be installed.
If the device or its accessories are returned back, in order to provide protection for people, the environment
and materials, it has to be decontaminated and cleaned before being shipped.
11.2 Disposal
Before disposal, the device must be decontaminated and cleaned to protect people, the environment and
property. When you are disposing of the device, the respective statutory rules must be observed.
Pursuant to guideline 2002/96/EC (WEEE), all devices supplied after August 13,2005 may not be disposed

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as part of domestic waste. The device belongs to group 8 (medical devices) and is categorized in the
business-to-business field.
The icon of the crossed-out trash can shows that the device may not be disposed as part of domestic waste.
The waste disposal guidelines of the individual EC countries might vary. If necessary, contact your
supplier.
12. Ordering information
Cat. No.
Model
Descriptions
943083437777
DM0412S
Clinical Centrifuge, with A12-10P rotor kits, US plug,
110V-120V/50Hz/60Hz
943183427777
DM0412S
Clinical Centrifuge, with A12-10P rotor kits, Cn plug,
220V-240V/50Hz/60Hz
943283427777
DM0412S
Clinical Centrifuge, with A12-10P rotor kits, Euro plug,
220V-240V/50Hz/60Hz
943383427777
DM0412S
Clinical Centrifuge, with A12-10P rotor kits, UK plug,
220V-240V/50Hz/60Hz
Accessories
19200358
A12-10P
Rotor kits, 4500rpm, 15ml*8, used with DM0412E
19400027
A10P15
Rotor adapter, used with A12-10P, 12pcs/pk
19400028
A10P15 mat
Rotor adapter mat, used with A10P15, 12pcs/pk
13．Warranty
13.1 Warranty of centrifuge
This centrifuge is guaranteed for one years from the date of delivery provided that it has been operated and
maintained properly.
13.2 Warranty of the rotor
The rotor is guaranteed for 3 years from the date of delivery upon manufacturer. Please pay attention, do
not use the rotor once it has been corrosion or fatigue damage. The warranties of the centrifuge and the
rotor become invalid in the case of the following conditions even if within the guarantee period expires:
(1) Failures caused by incorrect installation.
(2) Failures caused by rough or improper handling.

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(3) Failures caused by conveyance or relocation after installation.
(4) Failures caused by unauthorized disassembly or modification.
(5) Failures caused by using non-standard spare parts or accessories and unauthorized modification of
the rotor or centrifuge.
(6) Failures caused by natural disasters including fire, earthquakes and so on.
(7) Consumables and parts have a limited guarantee period.
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.

2311 E. Locust Court, Ontario, CA 91761 United States.
Office: [phone]
Fax: [phone]
Sales contact: [email protected]
Service contact: [email protected]
www.dlabsci.com
DLAB Scientific Instrument Inc.