Drucker Diagnostics Model 614B Centrifuge - Manual (Page 6)

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 centrifuge 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 614B 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 4 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 614B uses a brushless
A/C motor. It should not need servicig 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 5 to
remove and re–install the rotor.
CAUTION: Before cleaning, always unplug the line cord from the electrical
outlet to eliminate the risk of electric shock.
The rotor chamber, rotor and accessories should 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 should 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!
Tube Holder Configurations:
The fixed-angle rotor that came with your Model 614B is capable of spinning test tubes
up to 17 mm x 125 mm. Use the following chart and drawing to determine which tube
holder and cushion combination should be used with your application.
DIRECTIONS:
1. Compare the tube to be spun with the four boxes shown below.
2. Find the box that most closely matches the tube’s length. NOTE: The
tube length with its stopper or cap must be shorter then the chosen
box or the tube will not fit properly in the tube holder.
3. Match the letter from the chosen box with one of the configurations shown.
75 mm Tube Holder*
with
1525 cushion
B.
C.
D.
A.
C.
100 mm
Tube
Holder
with
1525
cushion*
75 mm
Tube
Holder
A.
100 mm
Tube
Holder
125 mm
Tube
Holder
with
1525
cushion*
125 mm
Tube
Holder
B.
or
For Example: A tube is found to be as long as box B. Accordingly, we can
use a 125 mm tube holder with a 1525 cushion or a 100 mm tube holder
with no cushion, (configuration B).
D.
* This part is available as an accessory. Contact The Drucker Company for assistance.
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