Helvi Combi PC302K Инструкция по эксплуатации онлайн [6/64] 394383

POWER SUPPLY CONNECTION

The machine must be connected to a Line-Neutral system with a “PE” protected grounding wire. Check

that the relevant socket terminal is actually connected to the distribution system grounding.

CONNECTION TO GROUND CABLE

Connect the dinse plug to the socket and the work cable clamp to the piece to be cut or to the metallic

workbench. Take following precautions:

√ Verify that there is a good electrical contact particularly if insulated or oxidated coated sheets

are cut.

√ Make ground connections as close as possible to the cutting area. The use of the metallic struc-

tures which are not part of the workpiece, such as the return cable of the cutting current, may

endanger the safety system and give poor cutting results.

√ Do not make a ground connection on the piece which has to be removed.

WARNING!: Before starting the cutting operations verify that the parts are properly assembled

by inspecting the head of the torch as shown on paragraph “Torch Maintenance”

LOCATION AND HANDLING OF THE POWER SOURCE

√ Choose location verifying that there is a good air ow and no dust, smoke or gas is present.

√ Make sure that obstacles do not prevent the cooling air ow out of front and rear openings of

the machine.

√ Arrange an open space of at least 5m around the machine.

√ In the case the machine has to be moved, always disconnect the plug from the outlet and gather

the cables and pipes so as not to damage them.

TORCH CONNECTION

FUNCTIONS AND CONTROLS

- MODEL THAT WORKS WITH INTERNAL COMPRESSOR ONLY

COMPRESSED AIR SUPPLY (only for the model with double function “inside compressor/exter-

nal air source”)

A source of clean, dry air or nitrogen can be supplied to your plasma cutting unit. The supply pressu-

re must be between 72.5 and 150 psi (5 and 10.3 bar). The ow rate is approximately 3.5 cu.ft./ min.

(100 L/min.). Failure to observe these precautions could result in excessive operating temperatures

or damage to the torch.

An air regulator is included with the unit with the optimum pressure setting set to 65 PSI, 4,5 Bar.

NOTE: the regulator should never be set above 6 bar.

NOTE: The unit will not operate if the input air pressure is too low.