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9.1 Mains Supply
9.2 Shielding Gas Connection
To connect shielding gas below operations should be done:
9.3 Welding Torch Connection
Connect the welding torch to
“Welding Torch Connector”
(EURO Socket) located
in
front of welding machine.
9 Installation and Operation of Machine
Expressweld MasterMIG 250CT
Mains supply connection of the machine should be made as per rules and only by
qualified personnel trained with necessary information.
Welding machine has been designed for triphase mains supply, 380 V± 10, 50/60% and
should be protected by 20A delay action fuse. Supply cable should be at least 4 x 2.5
mm.
Mains supply connection should be grounded.
Before connecting the machine to mains, make sure that the machine is off.
Never perform a mains supply connection and start the machine until there is a
good protective ground connection approved by a qualified electrician. Electric
leakages constitute death risk for human health.
2
Secure the gas cylinder and protect against risks such as rollover.
Remove the safety valve cover of gas cylinder and leave the cylinder valve open for a
while to clean it from foreign materials.
Install the gas regulator on gas cylinder.
Connect the gas hose to gas regulator.
Connect the other end of gas hose to
“Shielding Gas Inlet Socket"
located in the rear
of welding machine.
If necessary, connect the plug of heater to
“Shielding Gas Heater Socket”
(24 V)
located in the rear of welding machine.
When it is not used, close the valve of gas cylinder.
