Drucker Diagnostics Model 642VFD Centrifuge - Manual (Page 5)

(Continued)
12. The lid should remain locked until the rotor has nearly stopped. If the
machine unlocks prematurely, contact The Drucker Company for
assistance. Once the rotor has stopped, the interlock system will
become disengaged for sixty (60) seconds. The ‘UNLOCKED’
indicator light will illuminate during this time.
13. To gain entry into the centrifuge after this period has ended, simply
press the ‘OPEN / STOP’ button. The lid will unlock fo fifteen (15)
additional seconds.
After the centrifuge has passed this procedure it is ready for operation.
Control Panel:
Page 5 Page 8
Tube Holder Configurations:
The 642VFD is capable of spinning test tubes up to 17mm x 100mm with its hori-
zontal 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.
* This part is available as an accessory. Contact The Drucker Company for assistance.
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 75mm tube
holder with no cushion, (configurations B1 or B2).
A.
B.
C.
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
‘RUN’
Indicator
Light
‘LATCH’
Indicator
Light
‘UNLOCKED’
Indicator
Light
‘OPEN / STOP’
Button
‘START’
Button
‘RUN’
Begins a new run.
NOTE: The lid must be closed.
‘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.
‘START’
Begins a new run.
NOTE: The lid must be closed.
‘LATCH’
Lights up when the lid has been closed and
latched properly.
‘UNLOCKED’
Lights up to indicate that the locking mecha-
nism has been deactivated, allowing access
to the rotor chamber.
To verify the preset run time, RPM and brake settings:
1. Plug in the line cord.
2. Press the OPEN button to unlock the lid.
3. Open the lid.
4. Press and hold a START button until the latched light begins to flash, then
release.
5. The unit will indicate the settings for the START button you selected with
audible “beeps”. Count the number of beeps, they indicate the run-time set-
ting in minutes.
6. Press the same START button again, count the beeps, this time they indi-