Drucker Diagnostics 642E Manuale dell'operatore - Pagina 7
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S
B
L
PINNING
ALANCED
OADS
Your centrifuge must contain a balanced load in order to work properly.
Use the following rules when loading the rotor.
Spinning balanced loads will extend the life of the machine and produce
better results.
1. Opposing tube holders must be identical
2. Opposing tube holders must be empty or loaded with equally
weighted samples.
3. If an odd number of samples is to be spun, fill a tube with water
to match the weight of the unpaired sample and place it across
from this sample.
R
R
A
I
OTOR
EMOVAL
ND
NSTALLATION
T
:
O REMOVE THE ROTOR
1. Unlock the centrifuge by pushing the 'OPEN / STOP' button and
unlatch and open the lid.
CAUTION: Unplug the centrifuge from the electrical outlet 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 turning it
counterclockwise (a tool may be required).
4. The rotor is sitting on a cone-shaped adapter. Pull the rotor up
and off of this adapter.
T
:
O 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, (a tool may be required).
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.
Drucker Diagnostics +1-814-692-7761 - [email protected] Page | 8
13. The lid should remain locked until the rotor has nearly stopped. If
the machine unlocks prematurely, contact Drucker Diagnostics for
assistance.
14. Once the rotor has stopped, the interlock system will become
disengaged for sixty (60) seconds. The 'UNLOCKED' indicator light
will illuminate during this time.
15. To gain entry into the centrifuge after this period has ended,
simply press the 'OPEN / STOP' button. The lid will unlock for
fifteen (15) additional seconds.
After the centrifuge has passed this procedure it is ready for operation.
C
P
ONTROL
ANEL
'RUNNING'
Lights up when the
machine is in operation,
(power is being applied to
the motor).
'LATCHED'
Lights up when the lid has
been closed and latched
properly.
"UNLOCKED'
Lights up to indicate that
the locking mechanism
has been deactivated,
allowing access to the
rotor chamber.
Page | 5 Drucker Diagnostics +1-814-692-7761 - [email protected]
'START'
Begins a new run, (the lid
must be closed, see pg. 7).
'OPEN/STOP'
Allows for access into the
rotor chamber by
disengaging the locking
mechanism. Entry is only
permitted when the rotor is
stopped. Pressing this
button during operation will
terminate the run and
unlock the lid after the rotor
has come to a stop.