Start Up And Operation - ProMinent Makro TZ Operating Instructions Manual

Start up and operation

8 Start up and operation
Safety information
46
WARNING!
ATEX pumps in areas at risk from explosion
– Make sure that a suitably competent person
checks whether the appropriate installation
information from the "Installation " chapter has
been implemented correctly.
– Make sure that a "recognised competent
person" checks the electrical installation and in
particular the intrinsically safe power circuits.
– Set the opening pressure of the relief valve to a
maximum of no more than 1.5 times the nom‐
inal pressure of the pump.
WARNING!
ATEX pumps in areas at risk from explosion
The ignition temperature is reduced significantly
below the ignition temperature at atmospheric
pressure due to compression with the discharge
stroke of the possibly ignitable vapour-air mixture.
– Do not allow it to run dry.
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!
Only motors with a frequency converter: Danger of
electric shock
There remains a risk of an electric shock for 3
minutes after the mains voltage has been switched
off on conducting parts of the motor with an inte‐
grated frequency converter and on the lines them‐
selves.
– After switching off, allow the device to stand for
3 minutes before opening the terminal box.
CAUTION!
Only motors with a frequency converter: The motor
can be damaged
The input current limiter could be damaged if a
motor with an integrated frequency converter is
restarted within 3 minutes of the mains voltage
being switched off.
– After switching off, allow the device to stand for
at least 3 minutes before restarting.