Advertisement
Calibration
~~~~~~~
Centrifuges
6.
Place
the
system
in
the
RUN
mode.
Press
the
START
switch.
7.
Slowly
decrease
the
TEMPERATURE
set
point
to
3°C
below
the
indicated
temperature.
The
system
should
transfer
to
the
HOLD
mode
—
the
START
switch
should
go
OFF.
If
these
conditions
are
not
obtained,
adjust
R102
accordingly.
~~
Timer
Control
Knob
and
Switches
S106
&
S107
Adjustment
This
procedure
adjusts
the
mechanical
adjustment
of
control
knob
and
switches.
1.
Set
the
main
circuit
breaker
to
ON.
2.
Make
certain
that
the
rotor
is
secured
and
the
chamber
door
latched.
3.
Set
the
SPEED
control
to
1000
~~~~
4.
Press
and
hold
the
START
switch,
then
rotate
the
timer
control
shaft
counterclockwise
until
the
RUN
mode
stays
ON,
then
re~~lease
the
START
switch.
5.
Rotate
the
timer
control
shaft
counterclockwise
until
the
RUN
to
HOLD
mode
transition
occurs.
6.
Align
and
secure
the
timer
control
knob
STOP
position
with
the
console
vertical
mark.
~~
Imbalance
Detector
Calibration
(R101)
Each
rotor
has
a
predetermined
maximum
weight
in
grams
of
imbalance
that
when
detected
causes
the
IMBALANCE
light
to
come
on
and
the
centrifuge
to
shut
down.
NOTE
For
proper
imbalance
detector
calibration,
the
centrifuge
must
be
~evel
and
evenly
supported
on
its
casters
and
two
front
locking
stabilizers.
1.
Remove
the
six
(6)
mounting
screws
that
secure
the
front
con¬
trol
panel
to
the
console.
Leave
the
panel
in
place.
2.
On
the
Controller
Printed
Circuit
(PC.)
Board,
adjust
R101
until
+3.0
~~~
is achieved
between
pin
2 of
TP27
(ground)
or
left
side
of
R78
(12
~~~~~~
and
TP27
(ground).
6~10
Advertisement
