Inficon 550-520, Translation Of The Original Operating Instructions

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INFICON Description | 4
UL6000-Fab-Operating-instructions-iina75en1-04-(2109) 31 / 146
NOTICE
If you use a filter, for example a centering ring with wire mesh, to prevent dust or dirt
accumulation at the inlet of the leak detector:
► Note that ice can form on filters due to condensation of water vapor. This can lead
to property damage.
4.3.3.2 Exhaust
WARNING
Danger of poisoning due to harmful gases
Depending on the connected container and the gas contained therein, harmful gases
can get into the ambient air via the exhaust filter of the leak detector.
► Make sure you have protection measure to prevent inhaling hazardous gases.
► Do not pump out toxic, corrosive, or explosive gases that create a hazard.
► Connect an exhaust hose. The exhaust gas connection must be continuously
connected to an exhaust gas system and must not be closed.
The exhaust is located on the lower side of the device. The exhaust is a tubular
connection with internal and external thread. To connect the exhaust hose adapter
see also “Connect the supplied accessories [ } 44]“.
4.3.3.3 Purge gas connection
The connection for the purge gas is located on the lower side of the device, see
"Connections for accessories and control signals [
}
33]". This is a quick connection
for hoses with an outside diameter of 8 mm.
To purge use a Helium free gas at atmospheric pressure. The surrounding air may be
contaminated with traces of Helium due to spraying or filling up large containers. In
such cases connect a gas supply line (this means Nitrogen or fresh air or similar) over
the purge gas connection. The pressure in this gas line must not exceed the
atmospheric pressure by more than 100 mbar.