WARNING
Danger of poisoning due to toxic process media escaping from the exhaust pipe
During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape
freely into the air. There is a risk of injury and fatality due to poisoning in processes with toxic process
media.
► Observe the pertinent regulations for handling toxic process media.
► Safely purge toxic process media via an exhaust line.
► Use appropriate filter equipment to separate toxic process media.
WARNING
Risk of poisoning from incorrect use of the gas ballast system
The gas ballast system of the scroll pump is vacuum sealed only when used in valid, snapped posi-
tions "0", "1" and "2". When operating the valves in intermediate stages, there is a risk that process
media can escape to the environment uncontrolled. When using toxic process media, there is a risk
of poisoning.
► Change the positions of the valve only for setting the gas ballast stages.
► Operate the gas ballast valve only in the snap positions.
WARNING
Mortal danger from electric shock during operation caused by transport damage
Damage to the transport packaging may favor the ingress of moisture or electrically conductive media
into the vacuum pump. Devices connected to the mains may still be live. There is a danger to life
from electric shock when making contact with live components.
► Before commissioning, convince yourself of the trouble-free state of your vacuum pump.
► Pay attention to residues of fluids or condensate.
► Do not put the vacuum pump into operation if there is obvious external damage.
WARNING
Risk of fatal injury due to electric shock caused by water damage
The device meets protection degree IP 20 according to EN 60529: 2014 and is not protected against
water ingress. Vacuum pumps operated on the floor lead to leakage current in penetrating and sur-
rounding water. There is a danger to life from electric shock when making contact with live water.
► In case of water damage, disconnect the complete power supply from the area affected.
► Provide an on-site electrical fuse protection (e.g. RCD) in hazardous areas.
► When selecting the installation location, observe potential damage from water.
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.
► Open shut-off units immediately before or at the same time as starting the pump.
► Observe the maximum permissible pressure of 1,500 hPa (absolute).
► Observe the permissible pressures and pressure differentials for the product.
► Check the function of the exhaust line on a regular basis.
CAUTION
Risk of injury from burns where hot process gases leak with no exhaust line
During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape
freely into the air. For processes with high temperatures, there is a risk of burns on hot exhaust gas-
es.
► If necessary, safely purge hot process gases via an exhaust line.
► Wear personal protective equipment if necessary.
Safety
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Summary of Contents for HISCROLL 12
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