Operation:
NOTE: Follow the initial setup procedure on page 4 before initial operation.
1. Plug the centrifuge into an approved 115 Volt A.C., 60 Hz. outlet.
2. Turn the latch counter-clockwise and open the lid.
3. Insert cushions (if needed) into the tube holders for the tube size you are
using. Refer to ‘Tube Holder Configurations’ (page 6) for assistance.
4. Place the test tube samples into the tube holders. Be sure to follow the
rules for balanced loads.
5. Close the lid and turn the lid knob clockwise to its complete stop position.
6. Turn on the machine by turning the timer to the desired run time.
7. The centrifuge should begin to spin.
8. Once the timer reaches zero (0), power will be cut to the motor and the
rotor will coast to a stop. Do not open the lid until the rotor has come to a
complete stop.
9. Turn the lid knob counter–clockwise and open the lid.
10. Remove the samples.
11. The centrifuge is immediately ready for operation.
Page 5
Rotor Removal and Installation:
To remove the rotor:
CAUTION:
Unplug the centrifuge from the electrical outlet at this time to
eliminate the possibility of electrical shock or other injury.
1. Open the lid.
2. Remove the test tube holders.
3. Remove the knob or nut in the center of the rotor by turning it
counter-clockwise. A nut driver may be required.
4. The rotor is sitting on a cone-shaped adapter. Pull the rotor up and off
of this adapter.
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 rotor knob or nut and
turn it until it is hand-tight.
4. Replace the tube holders and verify that they are seated properly.
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.
Safety:
Lid Safety Switch:
The lid is secured to the top of the cabinet by a latching knob
and pawl system. When the knob is rotated clockwise, the pawl grips the underside
of the cabinet opening and prevents the lid from opening. A mechanical stop
positions the pawl and prevents it from rotating completely. When rotated to the
stop position, the pawl makes contact with a micro–switch mounted underneath the
cabinet top. The lid safety switch prevents the centrifuge from operating while the
lid is open.
Circuit Breaker:
The Model 614B is protected with a 4 Amp circuit breaker located
at the rear of the machine mounted to the base. Any electrical short circuit will
cause the breaker to cut power to the machine.
Calibration and Earth Ground Testing:
It is recommended that the top speed, ground continuity and line leakage be tested
every two years for continued safe operation. Contact The Drucker Company for
further information or testing availability.
The Model 614B complies with all requirements of UL standard
61010A-1, 61010A-2-20; Can/CSA C22.2 No’s 1010.1; 1010.2.20.
Page 8
1. Problem: The rotor does not spin freely.
Solutions: – Make sure nothing has fallen into the rotor chamber.
– If there is nothing obstructing the rotor, contact The Drucker
Company for further assistance.
2. Problem: Excessive noise when the machine is running.
Solutions: – Check to see that the load is balanced.
– Make sure that nothing has fallen into the rotor chamber.
– Make sure that the nut in the center of the rotor is tight.
– Have a technician test the motor and replace it if necessary.
3. Problem: The centrifuge does not run.
Solutions: – Check the electrical outlet.
– Make sure the lid latch is turned completely clockwise to its stop
position.
– Check the circuit breaker switch at the bottom left of the machine.
If the switch is white, the breaker has tripped. Contact The
Drucker Company for further assistance.
Troubleshooting:
NOTE:
The latch must be turned completely
clockwise to its stop position in order
for the centrifuge to operate.
6.
Tube Holder Replacement:
It is recommended that the tube holders be
replaced after 24 months of use.
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.
(Continued)
