Elektror S-HP serie Betriebs- Und Montageanleitung Seite 16

Operating and assembly instructions S-MP ATEX
Operation in a prohibited area
Danger!
Risk of destroying the fan!
Operation of the fan in the hatched area (1) trig-
EN
gers pumping effects and results in strong vibra-
tions.
This results in the fan being destroyed. Operation
of the fan is only permitted from the minimum
volumetric fl ow rate.
1
Values for the minimum volumetric fl ow rate can be found at
page 24.
Intended use excludes:
• Specifi c environmental conditions, such as an ambient
temperature at the installation site/place of use of more
than +40 °C or less than -20 °C, dust deposits, vibrations
at the installation site/place where the blower is used.
• Operation in/with fl ames or hot gases. The blower must
not be used as an ignition or fl ame arrester.
• Operation outdoors without protection from the weather
and sun.
• Adiabatic compression and shock waves, lightning,
electromagnetic waves, ionising radiation, ultrasound.
1.3 Mechanical hazards
Mechanical hazards on Elektror blowers are minimised ac-
cordingly using state-of-the-art engineering and by adhering
to the requirements of the occupational safety and health
protection law. We recommend using and wearing appropri-
16
ate protective equipment in all phases of the device's service
life (please note the following information) in order to exclude
residual handling risks.
1.4 Electrical Hazards
Danger!
Danger from electric current!
Live components carry current and cause fatal
injuries!
Deactivate the device before opening it, reaching
into it or inserting tools into it; check that compo-
nents are not live and secure it against reactiva-
tion.
1.5 Danger when reaching in and Unexpected Start-up
There is a high risk of injury on the inside of the device due to
rotating parts during operation. Decommission the device in
all cases and wait until all moving parts have stopped before
opening, reaching in or inserting tools into the device. Secure
the device reliably against it being accidentally restarted dur-
ing the entire period.
Also make sure that no other dangerous situation can arise
when restarting after a standstill, e.g., as a result of a power
failure or blockages.
1.6 Weight and stability
There are hazards resulting from slipping or falling over dur-
ing transportation and installation. See 2.1 – Transport and
Handling as well as 3.2 – Assembly, Installation.
1.7 Suction effect
Blowers produce a strong suction effect.
Warning!
Objects, items of clothing and even hair may be
sucked into the air intake. Risk of injury!
Do not stand in the vicinity of the air intake dur-
ing operation. The blower must never be operated
with an open air intake and must therefore be
covered with a protective grille according to DIN
EN ISO 13857.
(Risk of injury from the impeller!).
1.8 Blowing effect
Warning!
The blowing effect is very powerful on the ex-
haust side. Sucked in objects may be ejected at
very high speed (danger of injury).
Blowers are suitable exclusively for conveying
clean air or pure gaseous gas-air mixtures. To re-
liably prevent the sucking-in of foreign objects or
contaminants, which might be discharged, these
objects have to be removed before entering into
the blower by installing a fi lter.
Do not reach into the exhaust.
1.9 Temperature
Warning!
The motor-/blower housing can take on the tem-
perature of the medium to be conveyed during
operation. If this is above +50°C, the owner must
protect the blower against direct contact (risk of
burning!).
There can be an increase in the temperature of the medium
to be conveyed, particularly with higher pressure models,
when conveying the medium from the air intake side to the
discharge side. This temperature difference can lie within a
range of up to +20°C depending on the model and operating
conditions.
1.10 Motor Protection Circuit
To prevent inadmissible heat-up from overload, each motor
shall be protected by an ATEX-compatible monitoring device
or motor overload switch. Overload protectors with cut-out
delay depending on the current shall be installed to monitor
the rated current consumption in all conductors and shall be
able to switch off the blocked motor within the heat-up time t
To ensure this, the trip time of the monitoring device needs to
be shorter for the start-up current ratio I
time t for the respective temperature class.
E
The trip time, starting from cold state at an ambient tempera-
ture of +20 °C, is shown in the trip characteristic curve of the
monitoring device. The heat-up time values tE for the indi-
vidual temperature classes as well as the start-up current
www.elektror.com
.
E
/I than the heat-up
A N