WARNING
Danger of injury from impermissibly high inert gas pressure
Increased inert gas pressure compromises the operational reliability due to increasing power con-
sumption of the vacuum pump and potentially causes the temperature class threshold to be exceed-
ed. There is a danger of bursting if there is a potentially explosive atmosphere. This leads to injuries
caused by flying fragments, the escaping of high pressure, and damage to the unit.
► Observe the maximum permissible inert gas pressure of
1200 hPa (absolute)
.
► Dose the inert gas quantity with the dosing screw on the gas ballast valve or on site.
CAUTION
Risk of injury from entrapment of body parts
During installation and maintenance, the motor may start up uncontrolled. There is a risk of minor in-
jury to fingers and hands (e.g. hematoma), from direct contact with the vacuum flange.
► Maintain sufficient distance to the vacuum flange during all work.
► Safely connect the motor to the mains during installation.
► Safely disconnect the motor from the mains prior to maintenance.
► Secure the motor against re-start.
CAUTION
Danger of injury from bursting as a result of high pressure in the exhaust line
Faulty or inadequate exhaust pipes lead to dangerous situations, e.g. increased exhaust pressure.
There is a danger of bursting. Injuries caused by flying fragments, the escaping of high pressure, and
damage to the unit cannot be excluded.
► Route the exhaust line without shut-off units.
► Observe the permissible pressures and pressure differentials for the product.
► Check the function of the exhaust line on a regular basis.
CAUTION
Danger of burns on hot surfaces
Depending on the operating and ambient conditions, the surface temperature of the vacuum pump
can increase to above 70 °C.
► Provide suitable touch protection.
Risks during maintenance, decommissioning and in event of malfunctions
DANGER
Risk of explosion when carrying out installation and maintenance work in potentially explo-
sive areas
There is a risk of explosion if unsuitable tools are used in potentially explosive areas. Ignition can
cause very serious injuries.
► Transport, installation and maintenance work may not be performed in potentially explosive at-
mospheres.
► Always shut down the vacuum pump before commencing any work.
DANGER
Risk of explosion from electrostatic charging during transport
There is a risk of fatalities when transporting packaging material (foil) and plastic containers in poten-
tially explosive areas. Ignition can cause very serious injuries, and even fatalities.
► Only unpack the vacuum pump outside of potentially explosive areas.
Safety
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