Drucker Diagnostics Model 642E Centrifuge - Manual (Page 4)

Setup Location:
1. Unpack the centrifuge and verify that all of the supplied equipment is present.
2. Choose a setup location which meets the following criteria:
a) A bench top clearance height of 20” is required in order to open the lid.
b) The clearance envelope is the space around the centrifuge which is
required for safety. Choose a setup location which will allow for a clearance
envelope of at least 24” x 24”, (with the centrifuge at the center). No person
or hazardous material shall be permitted in the clearance envelope during
operation. The operator time within the envelope shall be limited to the time
necessary for loading, unloading and centrifuge operation only.
c) Proper ventilation is necessary to prevent the overheating of samples as
well as premature failure of the centrifuge. Choose an area which will allow
unencumbered air flow.
d) The centrifuge is designed to secure to the operating surface by four suction
feet. No adjustment is necessary for leveling the centrifuge, however, the
surface should be flat and level.
e) Be sure the outlet is always within reach as the line cord is the means
of emergency disconnection!
Initial Setup Procedure:
If any problems are found during the initial setup procedure, refer to the
troubleshooting section on page 10. For further assistance, contact
The Drucker Company at 814-342-6205 or 814-692-7661 .
1. Plug the centrifuge in to an approved electrical outlet. For electrical safety, the
unit must always be properly grounded.
2. For safety purposes, the locking system is always activated. To deactivate the
system, (in order to insert or retrieve samples), press the ‘OPEN / STOP’ button
on the control panel. The ‘UNLOCKED’ indicator light should illuminate. If it does
not, refer to page 10 on troubleshooting. The lid will be unlocked for 15 seconds
after pushing the ‘OPEN / STOP’ button.
3. Turn the latch counterclockwise and open the lid.
4. Spin the rotor by hand; check for free and level rotation. If the rotor does not spin
freely, refer to page 10 on troubleshooting.
5. Place the six test tube holders inside the rotor (as shown
to the right), and verify that they are seated properly.
6. Close the lid. Rotate the lid knob clockwise to its complete
stop position.The ’LATCHED’ indicator light should be
illuminated. If it is not, make sure that the lid is latched
properly. The centrifuge will not run unless the lid is latched
and that the ’LATCHED’ light is on.
7. Turn the centrifuge on by pushing the ‘START’ button.
8. The ‘RUNNING’ indicator light will illuminate.
9. The test tube holders will slide up into the horizontal position and the unit will
accelerate to full speed.
10. Listen to the sound of the centrifuge. A smooth whirring sound should be heard. If
there are any loud or unusual sounds, stop the centrifuge by pushing the ’OPEN /
STOP’ button immediately and refer to page 10 on troubleshooting.
11. While the machine is running, try to turn the latch counterclockwise. Power may
be cut to the motor but you should be unable to fully turn the latch. If it is possible
to turn the latch and open the lid while the unit is running, contact The Drucker
Company for assistance. Close and latch the lid.
Page 4 (cont.) Page 9
Care and Preventative Maintenance:
With proper care and maintenance your centrifuge will provide years of laboratory
service. For proper care, the following steps should be taken:
1.
Provide Adequate Ventilation: For cooling purposes, the Model 642E draws in
ambient air through the air intake cover on the top of the lid and exhausts
this air in the rear of the base. The centrifuge should be placed on a hard
smooth surface for good air circulation.
2.
Always Spin Balanced Loads: Make certain that you are always spinning a
balanced load. The Model 642E has a unique counter balanced motor
mounting design which, along with it’s rubber suction feet, produces
excellent vibration dampening. However, out–of–balance loads may break
glass test tubes and may produce unsatisfactory separation results.
Proper load balancing will improve sample separation and extend the life of
the centrifuge. Refer to page 6 on balanced loads for additional information
on balancing the load.
3.
Keep the Tube Holders Clean: NOTE: Always follow the safety guidelines of
your laboratory to properly clean up and/or dispose of materials in the event
that a substance known to be potentially toxic, radioactive or contaminated
with a pathogenic microorganism is spilt in or on the centrifuge. Small
glass fragments left in the tube holder after a tube breakage may adhere to
the next test tube inserted in that holder. When this tube is handled, these
fragments may puncture protective gloves and lacerate the operator’s
fingers or hand. Remaining fragments may provide stress points on
subsequent tubes and result in additional breakage. If a tube breakage
occurs, carefully remove the tube holder. Properly dispose of the sample
and tube fragments and thoroughly clean both the inside and outside of the
tube holder. Insert a new tube cushion (if necessary) and replace the tube
holder in the rotor.
4.
Motor and Electrical Maintenance: The Model 642E uses a brushless
permanent split capacitor AC motor. It should not need servicing for the life
of the centrifuge. The electrical components are selected for high reliability
and should not need service.
5.
Keep the Rotor Chamber Clean: Every six months, or whenever there is a
tube breakage, (refer to the note in #3), it may be necessary to remove the
rotor and clean the rotor chamber. Follow the instructions on page 7 to
remove and reinstall the rotor.
CAUTION: Once the lid has been opened, unplug the line cord from the
electrical outlet to eliminate the risk of electric shock during cleaning.
The rotor chamber, rotor and accessories shall be thoroughly cleaned
using either isopropyl alcohol, soap and water, or bleach. The use of Fully/
Partially Halogenated Hydrocarbons, Ketones, Esters and all other
chemicals not prescribed by the manufacturer may cause damage to the
rotor and tube holders and shall not be used.
Apply cleaning solutions with a towel or cloth. Do not submerge the
centrifuge in water or other cleaning solutions as this will cause damage
and void your warranty!
6.
Tube Holder Replacement: It is recommended that the tube holders be
replaced after 24 months of use. Inspect tube holders regularly for cracks. If
cracks are discovered, replace immediately.
7.
Remove Accessories Before Moving: All tube holders, samples, and caps
must be removed from the rotor chamber before transporting or storing the
centrifuge to prevent damage and injury.