Elmo Rietschle G-BH7e - Manual (Page 8)

610.44520.40.000 8 / 52 © Gardner Denver Deutschland GmbH
Safety instructions
 WARNING
Danger zone:
Missing or defective muffler on inlet or
discharge connection.
Hazard:
Possible serious hearing damage due to
emitted noise.
Protective measures:
Have missing or defective mufflers replaced.
Conduct a noise measurement in the system
after installing the pump−motor unit.
The following measures must be taken by the
operator:
 from 85 dB(A):
– Hearing protection must be available.
 from 90 dB(A):
– Mark noise area with a warning sign.
– Wear hearing protection.
 WARNING
Danger zone:
Environment of pump−motor unit.
Hazard:
Possible serious hearing damage due to
emitted noise.
Protective measures:
Conduct a noise measurement in the system
during operation after installing the
pump−motor unit.
The following measures must be taken by the
operator:
 from 85 dB(A):
– Hearing protection must be available.
 from 90 dB(A):
– Mark noise area with a warning sign.
– Wear hearing protection.
– With free entry and exit of gases, i.e. with
direct intake out of or direct feeding into
the atmosphere without piping, attach an
additional muffler.
CAUTION
Danger zone:
Frequency inverter
Hazard:
Material damage at the frequency inverter
caused by switching on the device too
frequently with too short intervals.
Protective measures:
In the case of cyclic mains switching for a
longer time period, allow at least 3 minutes
between two switch−on actions.
CAUTION
Danger zone:
Side channel blower
Hazard:
Material damage at the side channel blower
caused by too high speeds.
Protective measures:
 Do not set the output frequency at the
frequency inverter higher than the maximum
frequency specified in the documentation.
 Use special overspeed monitors if
necessary.