Drucker Diagnostics 642E Operator's Manual - Page 6
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I
S
P
NITIAL
ETUP
ROCEDURE
If any problems are found during the initial setup procedure, refer to the
troubleshooting section on page 11. For further assistance, contact
Drucker Diagnostics at 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 lid lock 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 11 on
troubleshooting. The lid will be unlocked for 15 seconds after
pushing the 'OPEN / STOP' button.
3. Turn the latch 1/4 turn 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 11 on troubleshooting.
5. Place the six test tube holders inside the rotor 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 11 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 Drucker
Diagnostics for assistance. Close and latch the lid.
12. Push the 'OPEN / STOP' button. The 'RUNNING' indicator light
should go out and the motor should slow to a stop.
Drucker Diagnostics +1-814-692-7761 - [email protected] Page | 4
C
A
P
ARE
ND
REVENTATIVE
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 its 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 8 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.
4. Motor and Electrical Maintenance: The Model 642E uses a
brushless permanent split capacitor AC motor. It should not need
routine servicing for the life of the centrifuge. The electrical
components are selected for high reliability and should not need
routine service.
5. 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.
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M
AINTENANCE