Connect the motor as per the wiring diagram for the controller, if it
is controlled by an electronic control unit (such as direct current
motors by a frequency converter).
WARNING!
Danger of electric shock
In event of a defect, there is a risk of electric shock
when conductive feed chemicals are present.
– For safety reasons we recommend connecting to
protective low voltage, e.g. in accordance with EN
60335-1 (SELV ).
WARNING!
Risk of fire after a diaphragm rupture
With seriously oxidising feed chemicals: Make sure
that the electric diaphragm rupture sensor switches off
the pump immediately after a diaphragm rupture.
– Connect the pump and the diaphragm rupture
sensor to a control so that the pump stops immedi‐
ately in the event of a diaphragm rupture.
CAUTION!
Danger resulting from unnoticed diaphragm rupture
All pumps ordered with an electric diaphragm rupture
sensor need to be electrically installed.
– Electrically wire the enclosed diaphragm rupture
sensor to a suitable monitoring device.
CAUTION!
Additional damage with a ruptured diaphragm
Never allow the diaphragm to rupture fully if damage
can be caused by hydraulic oil mixing with the feed
chemical.
– The diaphragm rupture sensor must switch off the
pump immediately.
Only restart the pump once the diaphragm has
been replaced.
Refer to the operating instructions for the diaphragm rupture
sensor.
Connect the stroke sensor to a suitable monitoring device in
line with the details in the "Technical Data" chapter - also
refer to their technical data!
Make sure that the monitoring/feed equipment installed by
the customer is capable of evaluating the current variations
of the Namur sensor to indicate a diaphragm rupture!
Frequency converter (to be provided
on site)
Electric diaphragm rupture sensor
(optional)
Stroke sensor (optional)
Installation, Electrical
18