Drucker Diagnostics Model 642B Centrifuge - Manual (Page 6)

Page 6
Tube Holder Configurations:
The Horizon is capable of spinning test tubes up to 17mm x 100mm with its
horizontal rotor. 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 three 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.
Page 7
Rotor Removal and Installation:
To remove the rotor:
1. Open the lid.
CAUTION: Unplug the centrifuge from the electrical outlet at this time
to eliminate the possibility of electrical shock or other injury.
2. Remove the test tube holders.
3. Remove the nut in the center of the rotor by using a 1/2" nut driver (Not
supplied).
4. The rotor is sitting on a cone-shaped adapter. Pull the rotor up and off
of this adapter.
Before using any cleaning or decontamination methods except those
recommended by the manufacturer, users should check with the manufacturer
that the proposed method will not damage the equipment.
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.
To install the rotor:
1. Place the rotor back onto the cone-shaped adapter. You may
need to turn the rotor slightly to line it up properly.
2. The rotor should slide onto the rotor cone freely.
3. Once a proper fit has been achieved, replace the nut and turn it
until it is hand-tight using a 1/2" nut driver.
4. Replace the tube holders and verify that they are seated
properly, (as shown on page 4).
5. It is recommended that the initial setup procedures be
performed to ensure that the rotor has been installed correctly
and that no damage has been done to the centrifuge during
either the rotor installation or possible rotor chamber cleaning.
See page 4 for this procedure.
B.
C.
For Example: A tube is found to be as long as box B. Accordingly, we
can use a 100 mm tube holder with a 1525 cushion or a 75 mm tube
holder with no cushion, (configurations B1 or B2).
* This part is available as an accessory. Contact The Drucker Company for assistance.
A.
100 mm
Tube Holder
RED
100 mm Tube
Holder with
1525 cushion*
75 mm
Tube Holder
B1. B2.
RED GREEN
C.
75 mm Tube
Holder
with 1525
cushion*
GREEN
A.