Mechanical Hazards; Danger From Reaching In And Unexpected Start-Up - Elektror S-MP series Betriebs- Und Montageanleitung

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A unit with motor nameplate specifi cation T4 and specifi ca-
tion T3 at the nameplate of the blower section can only be
used for temperature class T3. The same principle applies to
the equipment category.
Special applications and application conditions can increase
the hazard potential and must therefore be communicated to
and co-ordinated in advance with Elektror.
Intended use includes the following:
• The unit is operated in upright position, i.e. the blower
section/impeller with its support disk is installed
perpendicular to the fl oor.
• An exact right-angled installation is possible with the
vertical motor shaft and horizontally positioned impeller
and a protective roof above the blower cowling of the
motor.
• S1 operation (continuous operation):
Deviating from a maximum of 10 switches per hour are
allowed.
• The temperature of the fl ow medium must not exceed
+60 °C at the intake.
• The ambient temperature must not exceed +40 °C.
• The minimum temperature of the fl ow medium is -20 °C.
• The minimum ambient temperature is -20 °C;
with individual versions, a space heater is possible
(only category Ex de II 2G(D) T4 135 °C).
• Equipment categories 2G and 3G:
If the fl ow medium and the area surrounding the blower
contain substances that may corrode the materials, such
as acids, alkaline or caustic solutions, solvents, aggres-
sive gases, liquids or solid substances the resistance
against 1.4301 have to be checked. The fl ow medium
must be free from substances which may settle, are
adhesive or may form condensates, and must be free
from solids.
• Equipment categories 2D and 3D:
If the fl ow medium and area surrounding the blower
contain a substances that may corrode the materials, such
as acids, alkaline or caustic solutions, solvents, aggres-
sive gases of liquids the resistance against 1.4301 have
to be checked. The fl ow medium must be free from sub-
stances that are adhesive or may form condensates.
• For safety reasons, Elektror ATEX blowers must not be
operated to the left of the maximum pressure increase
volumetric fl ow rate characteristic curve. This helps
prevent the potential risk of pumping action by the
impeller under special operating conditions.
• Blowers with motors according to type of ignition protec-
tion Ex e are suitable exclusively for mains operation
with rated voltage ± 5% and frequency and must never be
used for frequency-converter operation.
Designated use excludes the following:
• Outdoor installation without additional protective measure
• Special ambient conditions such as, for example, ambient
temperatures at the installation / operation site of more
than +40 °C; dust deposits; vibrations at the installation /
operation site of the blower.
• Operation near / in fl ames or hot gases. The blower must
not be used as an ignition or fl ame arrester.
• Conveying of foreign matter.
• Adiabatic compression and shock waves, lightning,
electromagnetic waves, ionising radiation, ultrasound.
Special designs
Can be provided upon request for applications in conditions
Operating and assembly instructions S-MP-ATEX
beyond those described in these instructions. In the case of
special equipment, the enclosed supplementary operating
and assembly instructions must be observed and adhered
to. The supplementary instructions differ in certain respects
from these Operating and Assembly Instructions.
Elektror blowers offer a high level of operational reliability.
As the blowers are high-powered machines, the safety in-
structions must be strictly observed in order to avoid injuries,
damage to objects and to the machine itself.

1.2 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-
ate protective equipment in all phases of the device's service
life (please note the following information) in order to exclude
residual handling risks.

1.3 Danger from 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.
1.4 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.
1.5 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!).
1.6 Discharge Effect
Warning!
Very strong discharge effect on air discharge.
Objects drawn in may be ejected at high speed
(risk of injury!).
Blowers are exclusively designed for conveying
clean air. It is essential that foreign objects or
impurities are fi ltered out before they enter the
blower in order to reliably prevent them being
sucked in and then possibly being blown out.
Do not reach into the air discharge!
elektror-mail@ya.ru
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