Installation and connection
Diaphragm pump N87.9 EX
20
Translation of Original Operation and Installation Instruction, english, KNF 323252 04/21
7.2 Electrical connection
DANGER
Danger to life from electric shock
à
Only have the pump connected by an autho-
rized specialist.
à
Only have the pump connected if the power
supply is disconnected.
WARNING
Risk of explosion from electrostatic charge
à
Connect the pump so that the risk of ignition
from electrostatic charge is avoided.
à
Carefully ground the pump.
à
When connecting to a power source, observe the applicable standards,
directives, regulations and technical standards.
à
When connecting to a power source, carefully read and observe the
operating instructions for the motor.
à
Install a device for separating the pump motor from the electrical mains
in the electrical installation.
à
It is recommended that an additional EMERGENCY STOP device be
installed.
Potentially explosive
atmospheres
à
Only place the electrical equipment in potentially explosive atmos-
pheres that is necessary there for the operation of the pump.
à
Take lightning protection measures.
Fastening the connection cables
à
Fasten the connection cables so that
– the cables do not come into contact with movable or hot parts.
– the cables cannot be worn or damaged on sharp corners or edges
– no tensile and pressure forces are exerted on the connection point
of the cables (strain relief)
7.3 Pneumatic connection
CAUTION
Personal injury or property damage through
ejected plugs
If not removed, the plugs on the pressure side of
the pump can be ejected during operation by the
resulting overpressure.
à
Remove the plugs during installation.
à
Wear appropriate personal protective equip-
ment.
Connected components
à
Only connect components to the pump that are designed for the pneu-
matic data and thermal requirements of the pump. (see Chapter
