13
General information about safety
Everything stated in this ATEX manual is in addition to the
safety requirements on the machine and in the basic manual
of the fan and/or accessory equipment.
RESIDUAL RISKS
An analysis on residual risks of the product was carried out as required by the
Machinery Directive.
The user must consider the following risk and/or RESIDUAL RISK ZONES so
as to prevent a possible firing and use the fan safely:
-
Hot surfaces of the auger due to the fluid
- Hot fluid or gas leaking from the auger
- Lightning
- Electromagnetic Radio Frequency waves from 10
4
to 3x10
12
Hz
- Ionizing radiations
- Ultrasounds
- Adiabatic compression and shock waves
- Exothermic reactions.
Using frequency converters (inverters)
CAUTION:
If using frequency converters you must comply with the recommen-
dations of the Manufacturer in order to avoid electromagnetic interference and
where necessary, use special devices to reduce the interference.
Gas leaks from the ducting:
CAUTION:
Any ducting, to which the fans are connected, must guarantee
adequate sealing with respect to possible gas passages from the inside to the
outside of the duct and vice versa, unless it was preliminarily provided and
declared that the fan operates without ducting and with the same risk category
between the internal and external ZONE of the fan.
Parts of the duct or the system are not earthed:
CAUTION:
In addition to checking the earth of the fan you must verify that the
ducts which the fan is connected to or other metal parts are also adequately
linked to the earth.
Where necessary use an additional earth cable between the duct and fan.
Fans with open intake:
CAUTION:
People and objects must avoid transiting near the intake in the case
of fans with an open intake, despite the protection grid, due to the force of the
incoming flow. It is advisable to make an adequate area in front of the fan non-
accessible.
A
ccident prevention
Содержание CH Series
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