Praxair MIG COMPACT-220H/2R Guide De L'utilisateur page 6

MIG COMPACT 220H/2R / 250H/2R / 290H/2R / 300H/4R / 350H/4R / 400H/4R
Wire feeder
1 – Key button "wire inch" – To manually positioning wire at the torch tip without gas and energy consumption.
2 – Key button "test gas" – To purge torch gas tubes and to allow the adjustment of gas flow on the flowmeter. Pushing key
button the gas flows; to interrupt gas flow release key button.
3 – Wire feed motor (2 rolls or 4 rolls)
4 – Wire coil
5 – Coil breakage system
Parameter controler
1 – Alarm – cooling water failure (models 300/350/400)
2 – Alarm – Thermal surcharge
3 – Machine under voltage indicator
4 – Welding current indicator (models 300/350/400)
5 – Digital display
6 – Adjustment parameter button
7 – Spot welding time adjustment indicator
8 – 4T (4 times) torch mode indicator
1 – Alarm – cooling water failure – (models 300/350/400) - When lighted unable machine running by low torch cooling
water pressure (cooled machines versions), to avoid damages by overheating.
2 – Alarm – thermal surcharge – When lighted unable machine running by thermal surcharge. The thermal sensor is
placed on the central main transformer coil.
3 – Machine under voltage – Indicates that machine is under input voltage.
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9 – 2T (2 times) torch mode indicator
10 – 2T/4T/Spot selector
11 – Adjustable parameters selector
12 – Post-gas adjustment indicator
13 – Spot time adjustment indicator
14 – Burn-back time adjustment indicator
15 – Up-slope speed motor time adjustment indicator
16 – Wire feed motor speed adjustment indicator
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