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Dynamic water cooling ensures optimal temperature control and power efficiency. Depending on the welding power level and duration, the power source cooling fans moderate air flow and cooler motor run time between 15 seconds and 4 minutes, reducing electrical power consumption and localised noise levels. MasterTig 535 ACDC also includes an LED water level indicator.
Straight answers to the questions people ask when choosing and looking after a water cooler made for a particular maker's welding machines.
Often it does. Coolant has to be pumped further and through more hose, so the flow reaching the torch usually falls as the hose pack gets longer, and the cooling needed to keep the torch within its limits goes up. Some torch makers publish a minimum cooling power for each hose pack length.Check the torch manual for the cooling power and coolant flow it asks for at your hose length, and compare that with the cooler's data plate or manual. Fitting a longer torch lead than before is a good moment to re-check the match.
That depends on the machine and cooler. Many installations use a flow switch or flow guard that detects low coolant flow and signals the power source to stop or inhibit the arc, because a torch run without cooling can overheat very quickly. Some coolers also monitor coolant level and temperature.Do not assume protection is built in. Read the manual to see what your cooler monitors, how it is connected to the welder, and what the warning or trip indication looks like. Never weld with the cooler switched off or the flow alarm ignored.
Stop welding, switch the machine off and isolate it from the supply. Coolant leaking near live parts or onto the floor is an electrical shock hazard, and a leaking torch can also be a sign that it is overheating.Look for the source before you restart: loose or damaged hose connections, a split or ballooning hose, or a cracked fitting. Replace any damaged hose or torch part rather than taping it. After repair, run the cooler and check every connection for leaks with coolant flowing before you strike an arc.
No. Use the coolant the maker specifies for the cooler. Some makers say not to add water to a ready-mixed coolant, and not to use car antifreeze or ethanol-based mixtures, which can damage the pump and block narrow passages. Topping up with the wrong liquid also upsets the corrosion protection and the freeze protection.If the level is low, fill with the same type of coolant, up to the maximum mark on the tank and no higher. If you are unsure what is in the cooler, check the manual or drain and refill rather than mixing.
