Operation; Shutdown; Servicing - Sartorius 16694-2-50-22 Mode D'emploi

4.

Operation

– The pump can be switched on and
off using the power switch.
!
Specific safety instructions for
the media being handled must be
observed.
– Before pumping a medium, the com-
patibility of materials of pump head,
diaphragm, and valves with the
medium must be checked (for pump
materials: see chapter 9).
– The pumps must not start against
pressure or vacuum. This also applies
when the pump restarts after the
power has been cut off
for a short period. If a pump starts
against pressure or vacuum, then the
thermal switch will be activated and
switch the pump off.
!
When the operation of the pump is
interrupted by the thermal switch,
the pump will re-start automatically
after cooling down. Take all care
necessary to prevent this leading to
a dangerous situation.
!
The maximum permissible operat-
ing pressure (1 bar g) must not be
exceeded.
– To prevent the maximum permis sible
operating pressure being exceeded,
restriction or control
of the air or gas flow should only be
carried out in the suction line.
– If restriction or control of the air
or gas flow is made on the pressure
side ensure that the maximum
permissible operating pressure is not
exceeded.
– Diaphragm and valve plates|
sealings are the only parts subject to
wear. Wear is usually indicated by a
drastic reduction in the
pneumatic performance (vacuum,
pressure, delivery). When replacing
parts proceed as described in
section 6.
– Ambient conditions: see chapter 1.3.
5.

Shutdown

u Clean the containers.
v Purge the complete pump system
including the connecting hoses with
air for about 5 minutes.
w Shutdown the pump power.
x Disconnect the power source.
6.

Servicing

!
Before working on the pumps,
disconnect it from the electricity
supply by pulling the plug out.
When structured diaphragms are
changed, valve plates| sealings
should also be replaced. If the struc-
tured diaphragms are not changed
in both heads at the same time or
structured diaphragms
and valve plates| sealings are not
changed at the same time the
nominal performance of the pump is
not guaranteed after the service.
!
If a pump has been used for
toxic substances or other types of
substances which are hazardous,
hazardous to health, or injurious, the
following points must be observed:
1.) Clean the pump and its components
before servicing.
2.) Ensure that the service personnel
is not subject to a health hazard.
Apply the safety and protection
measures that are necessary for the
medium that has been handled
by the pump (example: the use of
protective gloves).
3.) Ensure that discarded parts and
materials are safely and correctly
disposed of.
– Use only original Sartorius replace-
ment parts.
Required tools and material
– Service Set (see section 8)
– Philips-head screwdriver No. 2
Preparatory Steps
u Shut down the pump (see section 5)
including disconnecting from the
power source.
v Remove tubing from the inlet and
outlet connectors of the pump.
w If the pump is integrated in a
vacuum system: Remove pump from
the Baseplate.
Removing the Pump Head
u Loosen the 6 outer screws
each pump head.
v Carefully remove the pump head.
on
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