VACUUBRAND MZ 2C EX +IK+EK - Manual (Page 11)

page 11 of 75
Documents are only to be used and distributed completely and unchanged. It is strictly the users´ responsibility to check carefully
the validity of this document with respect to his product. manual-no.: 999128 / 29/04/2014
Electronic equipment is never 100% fail-safe. This may lead to an indefinite status of
the equipment. Provide protective measures against malfunction and failure.
☞
Operating the pump, stand still of the pump or operating the air admittance valve
must not lead to a critical dangerous situation under any circumstances.
Ensure that in case of failure the pump and the vacuum system always will turn into
a safe status.
☞
In case of leaks in the manifold or diaphragm cracks pumped substances might
be released into the environment or into the pump housing. To reduce the risk of
leaks, ask for a diaphragm pump with additional safety diaphragm.
☞ Obey especially notes on operation and use and maintenance.
☞ Failure of the pump (e. g. by power failure) or connected components, parts of
the supply (e. g. coolant) or change of parameters (e. g. increase of pressure
in the coolant system) must not lead to a critical dangerous situation under any
circumstances.
☞ Adopt suitable measures to prevent the release of dangerous, explosive, corro-
sive or polluting fluids.
☞ If pumping different substances, it is recommended to purge the pump with air
or inert gas prior to changing the pumped media in order to pump out residues
and to avoid reactions of the pumped substances with each other and with the
pump materials.
Take into consideration interactions and chemical reactions of the pumped
media. Ensure that the materials of the wetted parts are compatible with the
pumped substances, see section ”Technical data”.
☞ The valves and the diaphragms are wear parts. Replace the diaphragms and
valves at the latest at 90% of the typical lifetime or immediately at higher noise
level. The typical lifetime of a diaphragm is 15000 operation hours when pumping
non-corrosive or non-condensable gases, if necessary provide an operation time
counter.
☞ Check the overpressure safety valve between the pump stages (only pumps with
four cylinders) regularly and replace at the latest at 90% of the typical lifetime
(typical lifetime: 15000 operation hours).
☞ Take adequate precautions to protect people from the effects of dangerous sub-
stances (chemicals, thermal decomposition products of fluoroelastomers), wear
appropriate safety-clothing and safety glasses.
☞ Obey applicable regulations when disposing of chemicals. Take into considera-
tion that chemicals may be polluted.
☞ Adopt suitable measures to prevent contamination of the pumped substances or
the environment.