Safety During Operation - vacuubrand ME 4C NT VARIO Instructions For Use Manual

• Consider interactions and chemical reactions of
the pumped media. Ensure that the materials of the
pump's wetted parts are compatible with the pumped
substances, see section "Technical data", pg. 26.
When changing the substances pumped, we recom-
mend purging the pump with air or inert gas prior to
changing the pumped media. Purging the pump will
pump out residues and it will reduce the possibility of
reactions of the pumped substances with each other
and with the pump's materials.

Safety during operation

➨ Adopt suitable measures to prevent the release of dan-
gerous, toxic, explosive, corrosive, noxious or polluting
fluids, vapors and gases. To prevent any emission of
such substances from the pump outlet, install an ap-
propriate collecting and disposal system and take pro-
tective action for pump and environment.
➨ You must take suitable precautions to prevent any for-
mation of explosive mixtures in the pump chamber or
at the outlet of the pump. In case, e.g., of a diaphragm
failure, mechanically generated sparks, hot surfaces or
static electricity may ignite these mixtures. Use inert
gas for gas ballast or venting, if necessary.
➨ Drain appropriately or otherwise remove any potential-
ly explosive mixtures at the outlet of the pump, or dilute
them with inert gas to non-explosive concentrations.
➨ Never operate this pump if it has a damaged cord or
plug.
+ If the pump is not working properly, has been dropped
or has fallen into water, contact your pump service pro-
vider.
+ Prevent any part of the human body from coming into
contact with vacuum.
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