Design and function
System gas connection
099-008724-EW501
08.01.2012
29
5.7
System gas connection
WARNING
Incorrect handling of shielding gas cylinders!
Incorrect handling of shielding gas cylinders can result in serious and even fatal injury.
• Observe the instructions from the gas manufacturer and in any relevant regulations
concerning the use of compressed air!
• Place shielding gas cylinders in the holders provided for them and secure with fixing
devices.
• Avoid heating the shielding gas cylinder!
Danger due to escaping system gasses!
The machine is equipped with pressure relief valves to control the connected system
gasses. In case of excess pressure (>4.5 bar) the gas is released into the ambient air.
• Never exceed the maximum input pressure of 4.5 bar!
• Follow the safety data sheets of the gasses used!
• Make sure the working area is adequately ventilated!
CAUTION
Faults in the shielding gas supply.
An unhindered shielding gas supply from the shielding gas cylinder to the welding
torch is a fundamental requirement for optimum welding results. In addition, a blocked
shielding gas supply may result in the welding torch being destroyed.
• Always re-fit the yellow protective cap when not using the shielding gas connection.
• All shielding gas connections must be gas tight.
NOTE
Before the process starts, the system gas primary pressure values are checked. If the
pressure is insufficient a process warning is issued on the system interface (gas error).
In case of warnings the pilot arc cannot be started. If the gas flow stops during a
process the process/pilot arc is shut down to protect the welder and machine
component.
NOTE
Before connecting the pressure regulator to the gas cylinder, open the cylinder valve
briefly to expel any dirt.
