Sorvall RT/T6000D - Emergency Sample Recovery; Reducing Speed for Rotor Loads

Operation
SORVALL®
Centrifuges
Use
appropriate
decontamination
procedures
on
the
centrifuge and/or
rotor
should
exposure
occur
(see
paragraph
1-1).
d.
Emergency
Sample
Recovery
If
the
main
power
shuts
off
because
of
a
power
failure
or system
malfunction
while
the
rotor is
spinning,
the
chamber door
will
not
open.
A
mechanical override
is
provided
to allow
sample
recovery
in
the
case
of
an
emergency.
The
mechanical override
loop
is
located
under
the
right,
front
corner
of the
centrifuge
as shown
in
figure
3-3.
To
operate
the
override,
insert
a
screwdriver
or
similar
object
into
the
metal
loop
and
pull
down.
While
pulling
the
loop down,
turn
the chamber door
release
knob clockwise to
open
the
door.
NOTE
Leave
a
clearance area around
the
lower
right-hand
comer
of
the
centri¬
fuge
to
prevent
obstruction
of the mechanical
override.
e.
Reducing Speed
for
Rotor Compartment
Loads
in
Excess
of
Design Mass
There is
a
maximum
allowable
compartment mass
established
for each
centrifuge
rotor.
To
prevent
rotor
failure,
the
total contents
of
any
compartment,
including
specimen, tubes, cover,
and
adapters
(if
used),
must not exceed the figure
given
in
the
specification
in the rotor
manual unless
rotor
speed
is
reduced
proportionately.
Strict adherence
to
the
maximum
allowable
compartment
mass
or
reduced
speed
(see
below)
is required to
prevent
rotor failure.
The
rotor speed
is
reduced
in
proportion
to
the
square
of
the
ratio for
the
maximum
allowable
compartment mass to
the
actual
compartment mass
(including
specimen.
tubes,
covers,
and
adapters).
If
the
compartment mass
is more than
that
specified
for
the
rotor,
the
reduced
speed
can
be determined
by
using
the
formula
given
below.
f
Maximum Compartment Mass
Reduced
Rotor
Speed
= Maximum
Rotor
Speed x
^
Actual
Compartment Mass
3-8