LW Scientific USA Universal User Manual

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Universal Centrifuge

Instruction Manual

A Lid B ON/OFF Switch

(DC Power Jack)

C Run Button D Stop/Open Button E Speed Setting F Time Setting G Emergency

Release Hole

H Lid Latch

Introduction

The Universal Centrifuge from LW Scientific is the perfect solution for both laboratories and doctors’ offices. This newest member of our USA centrifuge initiative features a ZERO-RPM locking lid for safety and digital programming of time ranging from 1-99 minutes and speed ranging from 500-3400rpm.

Achieve up to 1550g with the fixed-angle rotor or 1809g with the swing-out rotor, resulting in clean, easy to read lines of separation. The LWS Universal centrifuge has a DC motor and comes with a 110-220v auto-switching power supply.

Maximum test-tube size for the 8-place fixed-angle rotor is 122mm tall and 17.5mm wide if spinning 8

tubes (full load), and 131mm tall and 17.5mm wide if spinning 4 tubes (every other position).

Maximum test-tube size for the 6-place swing-out rotor is 131mm tall and 17.5mm wide if spinning 6 tubes.

P. 770.270.1394 F. 770.270.2389 865 Marathon Parkway Lawrenceville GA 30046P. 770.270.1394 F. 770.270.2389 865 Marathon Parkway Lawrenceville GA 30046

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Warranty

LW Scientific instruments have a one (1) year limited warranty. This warranty is not valid on normal wear

and tear, cosmetic damages caused by chemicals, solvents, and/or cleaning solutions, as well as acts of

God.

Please register your product online at: www.lwscientific.com/warranty_form.

Important: Warranty information must be completed within 30 days of purchase.

Installation & Setup

LW Scientific packs each Universal centrifuge with utmost care. All units undergo a QC check prior to ship-

ping from LW Scientific headquarters in Lawrenceville, GA to ensure proper operation. Examine the outer

and inner containers for any visible damage, and retain the packing material. If there is visible damage,

please contact the shipper or your distributor, as our warranty does not cover shipping damage.

Remove the centrifuge from the shipping container and inspect for possible shipping damage. DO NOT

OPERATE THE CENTRIFUGE AT THIS POINT.

Please read and complete the warranty form online at LWScientific.com/warranty_form. The warranty form

documents your purchase. Failure to fill out the warranty form may void any warranty claims on the unit.

Place the centrifuge on a sturdy, level surface. Plug the power cord into the appropriate power outlet.

Turn the power on with the on/off switch on the back of the unit. The power light and digital display should

light up. DO NOT OPERATE THE CENTRIFUGE AT THIS POINT.

The latch of the Universal will remain locked while at rest and while spinning. To open the lid while at rest,

push the Stop/Open button, then turn the latch counter-clockwise as far as possible and lift the lid within

seven seconds. If power fails, the lid can be manually opened by inserting the Manual Lid Release Tool (or

a small screwdriver) in the release hole on top of the lid towards the front of the unit. DO NOT OPEN WITH

MANUAL LID RELEASE TOOL WHILE UNIT IS RUNNING.

Inspect the rotor chamber. Install all the tube shields in the rotor. Make sure that no loose debris is in the

bowl. Make sure that the rotor screw is tight using a #2 Phillips screwdriver. DO NOT OPERATE THE CENTRI-

FUGE AT THIS POINT.

Operation

Do not insert test tubes at this time. Close the lid and turn the latch clockwise until it stops. The latch of the

Universal must remain in the locked position (maximum clockwise rotation) while spinning. Set the speed to

“10” (1,000rpm) and the time to “5” minutes using the up and down buttons on the front label.

Start the unit by pressing the RUN button. The unit should come up to speed with a smooth sound and little

or no vibration. If there is excessive vibration or noise, shut off the unit immediately, check the troubleshoot-

ing tips, and contact LW Scientific if not resolved.

Once the unit completes the cycle, open the lid by turning the latch counter-clockwise as far as possible

and lift the lid. The lid is designed to only open after the speed has reached zero RPM.

P. 770.270.1394 F. 770.270.2389 865 Marathon Parkway Lawrenceville GA 30046P. 770.270.1394 F. 770.270.2389 865 Marathon Parkway Lawrenceville GA 30046

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Now turn the speed up to the highest setting of “34,” and check for smooth sound and little vibration. If there

is excessive vibration or noise, shut off the unit immediately and contact LW Scientific. The unit is now ready to be loaded.

ALWAYS BALANCE THE LOAD. Be certain to balance tubes of equal weight across from each other on

the rotor. If you need to spin only one tube, you must use another tube filled with similarly equal fluid (or water) to balance the rotor. Proper balancing will improve sample separation and will extend the life of the centrifuge. Spinning out-of-balance loads may break tubes and can cause damage to the unit which will not be covered under warranty.

8-Place, Fixed-Angle Rotor Balance Options: 6-Place, Swing-Out Rotor Balance Options:

ALWAYS MAKE SURE TUBES ARE SUPPORTED FROM THE BOTTOM, using proper tube shields and/or tube

inserts. Never allow a tube to hang by its cap on the rim of the tube shield, which can cause the stopper top to pop off and the tube to break as it hits the bottom of the shield. The cap may also cause damage inside the bowl. Damage due to improper loading will not be covered under warranty.

KNOW THE G-FORCE LIMITS OF YOUR TUBES. The Universal at full speed will produce enough g-force to

break some tubes. Be certain that you are not exceeding the recommended g-forces for the brand of tubes that you are using.

NEVER FORCE A TUBE INTO THE SHIELDS. Tubes should fit easily into and out of the tube shield. Make sure

the tubes do not exceed the length limits listed in the Introduction, or the tubes may interfere with each other.

Once loaded, select the desired speed and time and start the centrifuge. The Universal cannot be

opened while the rotor is turning without interrupting the cycle.

Once the unit has completed the cycle and come to a complete stop, an audible BEEP will sound. The latch can now be turned counter-clockwise as far as possible to open the lid.

IMPORTANT: Time and speed values from the previous 4 cycles are automatically saved into memory. To recall previous values, press the STOP/OPEN button while the lid is open. This convenient feature will save time when switching between processes.

Troubleshooting

No power: Plug into another outlet.

Wobbles and shakes: Remove all tube shields, and clean them out. Check for tube inserts or dried fluids

in tubes. Test run without test tubes or tube shields in place.

Makes excessive noise: Tighten rotor screw.

Breaking tubes: Turn the speed down. Check your tube limits. Discard old tubes and try new ones.

Lid won’t open: If power fails, you must override the lid-lock by pushing the supplied Manual Lid Release Tool or

a small screwdriver into the hole in the top of the unit to manually disengage the lock while gently turning the lid latch counterclockwise.

P. 770.270.1394 F. 770.270.2389 865 Marathon Parkway Lawrenceville GA 30046

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Care and Maintenance

Use only high quality test tubes. Lower quality or inexpensive glass or plastic tubes may fracture and release

their contents into the tube chamber. Make sure you know the maximum force allowed for the tubes you are spinning.

Never force a tube into the tube shield. The tube shields were design to accommodate most common sizes

of tubes.

Keep the tube shields clean. If a tube breaks inside a shield, clean all the debris from the shield and bowl and

disinfect.

If a large amount of fluid has spilled inside the unit, carefully remove the tube shields and rotor and clean the

inside of the rotor chamber and the top of the motor.

*The horizontal metal rotor and tube shields can be autoclaved.

Specifications

Nominal Speed: 500-3400 rpm

Fuse: 10A

Height: 9.9in

Width: 14.9in

Depth: 14.5in

Weight: 12lbs

Boxed Dims: 16x16x12in

Boxed Weight: 17lbs

Fluid

Recommendations: Speed Time

Whole Blood 3400 10 min.

Urine 1800 5-10 min.

LED Display Definitions:

Green LED ON Lid is locked / Ready for cycle

Green LED blinking quickly RED LED ON

Green LED blinking slowly

Unit accelerating

Unit at operating speed

RED LED ON

Red LED blinking/display is “00” Lid locked / Cycle complete

G-Force with

Fixed Rotor:

RCF

(g’s)

125

180

245

282

321

406

501

606

721

846

982

1127

1282

1364

Radius

(mm)

112

RPM

500

800

1000

1200

1400

1500

1600

1800

2000

2200

2400

2600

2800

3000

3200

3300

1450 112 3400

G-Force with

Swing-Out Rotor:

RCF

(g’s)

100

156

225

306

352

400

507

626

757

901

1058

1227

1408

1602

1704

Radius

(mm)

140

RPM

500

800

1000

1200

1400

1500

1600

1800

2000

2200

2400

2600

2800

3000

3200

3300

1809 140 3400

The Universal Centrifuge is intended for use as a general laboratory centrifuge.

P. 770.270.1394 F. 770.270.2389 865 Marathon Parkway Lawrenceville GA 30046P. 770.270.1394 F. 770.270.2389 865 Marathon Parkway Lawrenceville GA 30046

MKT-7.5.3.-L-110 | Rev 6