Messer Cutting & Welding K4 Operations Instructions download pdf (Page 44)

4 Description of control M200 / M210 (optional)

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4.8.6 Gas pre-flows

The optimum gas pre-flow time is always specified automatically according to the material and gas

types selected.

4.8.7 Ignition control

The ignition process is monitored and optimised according to the conditions. This provides

constant, reproducible ignition results for all kinds of different applications.

4.8.8 Automatic shut-off

The automatic shut-off function is used to prevent accidents.

If welding is interrupted for more than 3 sec., the wire feed, welding voltage and gas are switched

off.

4.8.9 Short-circuit monitoring

This function is also used for accident prevention (for users and the machine).

If there is short-circuit between the wire electrode and the workpiece or workpiece potential during

welding or when using the welding machine, the gas, wire feed and the welding voltage are shut-

down in fractions of a second. The short-circuit is also displayed as an error message

(see 4.6.5.1+4.6.5.2).

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Messer Cutting & Welding K4 Operations Instructions Page 44