Troubleshooting - ProMinent Makro/ 5 Operating Instructions Manual

13

Troubleshooting

Safety notes
WARNING!
Warning about personal and material damage
EX pumps only: When operating in EX areas, certain
subjects must be observed.
– The chapter "Important supplements for metering
pumps in EX zones" of the "General Operating
Instructions on ProMinent
Pumps and Hydraulic Accessories" must be
observed in all cases.
WARNING!
Fire danger
Only with combustible media: These may start to burn
when combined with oxygen.
– When filling and draining the liquid end, the feed
chemical must not come into contact with oxygen.
WARNING!
Hot surface
In event the power end motor is loaded excessively, its
surface may become very hot.
– Avoid contact.
– If necessary, mount a guard plate.
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
® Motor-Driven Metering
45