ProMinent Sigma 3 Basic Operating Instructions Manual page 12

Safety chapter
Ignition hazard
Flammable feed chemicals
Ignition hazard with bought-in motor components
Ignition hazard with bought-in actuator or control drive
components
Ignition hazard caused by bought-in proximity switch
NJ1.5-8GM-N (stroke sensor)
Safety information
12
Protective measures to be observed by the customer
Only material version SS or TT is permitted to pump flam‐
mable feed chemicals.
Do not allow it to run dry.
The operator must install suitable protective measures, for
example a flow meter.
The customer must wire the diaphragm rupture indicator in
such a way that it immediately stops the pump.
Refer to the documentation for the motor.
Comply with the monitoring intervals.
The insulation resistance needs to be greater then 5
MOhm.
Provide a time-delay residual current device.
Provide overload protection by means of a motor protec‐
tion switch or an equivalent protective device.
Observe the minimum spacing between the air inlet on the
fan hood and any obstacles.
Avoid deposits of dust more then 5 mm deep.
Connect the earth wire.
Max. installation height: 1,000 m.a.s.l.
Refer to the documentation for the actuator.
Wait 3 minutes after switching off before opening the
housing.
Refer to the documentation for the proximity switch (elec‐
trical installation, maintenance, ...).
WARNING!
Warning of hazardous feed chemical
Should a dangerous feed chemical be used: it may
escape from the hydraulic components when working on
the pump, material failure or incorrect handling of the
pump.
– Take appropriate protective measures before
working on the pump (e.g. safety glasses, safety
gloves, ...). Adhere to the material safety data sheet
for the feed chemical.
– Drain and flush the liquid end before working on the
pump.