VTK
‐
VS
‐
BA
‐
004e
‐
B
|
User
Manual
MDS
3200A
|
Cleaning
57
8.3.3
Dismantling
the
Valve
and
Fine
Purification
Step
1:
The
dispensing
process
must
be
completed.
The
valve
is
in
closed
position.
Switch
OFF
the
control
unit
and
disconnect
it
from
the
mains.
Step
2:
Deactivate
the
compressed
‐
air
connector
and
disengage
it.
Step
3:
Remove
actuator
and
sensor
cable
from
the
valve.
Step
4:
Disassemble
the
valve
as
follows:
Unscrew
and
remove
the
cartridge.
Loosen
the
two
screws
for
the
cartridge
holder.
Remove
the
holder.
Detach
the
Luer
Lock
connector
from
the
cartridge
base.
If
necessary,
use
a
wrench
no.
8.
Disconnect
the
sealing
nut
with
tool
MDT
302.
Remove
it
together
with
the
cartridge
base.
Disconnect
the
nozzle
unit,
rotating
counterclockwise.
Disassemble
this
unit.
Unscrew
the
tappet
guidance,
together
with
the
nozzle
insert,
from
the
nozzle
adjusting
nut.
Use
the
nozzle
changing
tool
MDT
303.
Afterwards
pull
off
the
O
‐
ring
from
the
tap
‐
pet
guidance.
Remove
the
two
connecting
screws
in
order
to
separate
the
fluid
box
from
the
valve.
CAUTION!
(beware
of
tappet
while
disconnecting)
Be
careful
when
disconnecting
the
fluid
box.
The
tappet
can
break,
if
the
fluid
box
is
jammed.
Disengage
the
tappet
centering
piece
and
tappet
sealing
from
the
fluid
box.
Use
the
thicker
side
of
tool
MDT
304
for
this
purpose.
Step
5:
Prewash
all
of
the
components
by
hand.
The
proper
use
of
the
parts
contained
in
cleaning
tool
set
CTK
is
illustrated
on
the
following
page
(see
page
58)
.
Each
of
them
is
dedicated
to
particular
components.
For
the
nozzle
insert
use
a
special
cleaning
wire.
These
are
not
part
of
the
CTK
set,
but
can
be
ordered
separately.
They
are
available
in
different
sizes.
Step
6:
The
actual
cleaning
process
takes
place
inside
an
ultrasonic
bath.
Place
a
bowl
with
sufficient
capacity
into
the
bath.
Set
the
fluid
box,
tappet
sealing,
tappet
centering
piece,
cartridge
base,
sealing
nut,
Luer
Lock
connector,
nozzle
adjusting
nut,
tappet
guidance
(without
O
‐
Ring)
and
nozzle
insert
into
the
bowl.
Fill
up
the
bowl
with
an
appropriate
solvent
(e.g.
Isopropanol)
,
until
all
of
the
parts
are
covered.
Leave
the
components
ca.
15
min
inside.
Step
7:
Dry
the
parts.
Simply
use
exposure
to
air
or
compressed
air.
Step
8:
For
re
‐
assembly,
perform
the
sequence
described
in
step
4
in
reversed
order.
Summary of Contents for MDS 3000 Series
Page 1: ......
Page 58: ...VTK VS BA 004e B User Manual MDS 3200A Cleaning 58 8 3 4 Fine Purification of Components...
Page 72: ...VTK VS BA 004e B User Manual MDS 3200A Attachment 72 13 2 Dimensional Drawing MDC 3200A...
Page 74: ...VTK VS BA 004e B User Manual MDS 3200A Attachment 74 13 4 Connection Diagram PLC Interface...
