Troubleshooting - ProMinent Hydro 2 Series Operating Instructions Manual

11

Troubleshooting

Safety information
WARNING!
ATEX pumps in the ATEX area
– Generally ensure that the parts are working properly
(no leaks, unusual noises, high temperatures,
unusual smell ...) especially the power end/drive and
the bearings.
– Do not allow the pump to heat up because of a lack
of oil!
With lubricated metering pumps, regularly check for
the presence of lubricant, for example by checking
the liquid level, visual leak control etc. If oil is
leaking, examine the leakage point immediately and
eliminate the cause.
– When cleaning plastic components, ensure that no
electrostatic charges are generated by excessive
friction. - see warning label.
– Replace wear parts, such as bearings, when there is
an identifiable incidence of unacceptable wear. (The
nominal service life cannot be calculated with lubri‐
cated bearings.)
– Only use genuine spare parts as replacements.
– Carry out inspections and repair in compliance with
DIN EN IEC 60079-17 and ensure that they are only
performed by "experienced personnel with the requi‐
site knowledge".
– Make sure that a "recognised competent person"
checks the electrical installation and in particular the
intrinsically safe electric circuits.
WARNING!
ATEX pumps in areas at risk from explosion
Static electricity can cause ignition sparks.
– Consider potential equalisation before you approach
any pump equipment that could be at a different
electrical potential (such as pipes or tools)
WARNING!
Fire hazard with flammable media
Only with flammable media: They can be ignited by
oxygen.
– The pump may not work if there is a mixture of feed
chemical with oxygen in the liquid end. A specialist
may need to take appropriate actions (using inert
gas, ...).
WARNING!
Danger of an electric shock
Personnel working on electrical parts can be electro‐
cuted if all electrical lines carrying current have not been
disconnected.
– Disconnect the supply cable before working on the
motor and prevent it from being reconnected acci‐
dentally.
– Any separately driven fans, servo motors, speed
controllers or diaphragm rupture sensors fitted
should also be disconnected.
– Check that the supply cables are de-energised.
Troubleshooting
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