Drucker Diagnostics 642B Operatör El Kitabı - Sayfa 10

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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

642B 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 642B 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 7 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 642B 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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