Kemppi MasterTig MLS 2500 Operation Instructions Manual

Also see for Master MLS 2500: Operating manual

Contents

Master(tig) 2500, 2503, 3500, 3503 MLS™/ 0311 – 17© COPYRIGHT KEMPPI OYA16 Control of current with torch up-down switch always active / active only when selectedwith REMOTE button 0 always activeA17 Guard functions of cooling unit not activated / activated 1 activatedA18 Downslope for Minilog and 4T in MTM and MTL panels performed during long switchaction / after switch operation (normal) 0 normalA19 Cooling unit operates on forced control / automatic on/off control 0 automatic3.2.7. Foot pedal control R11FFirst read under “3.2.2.4. TIG welding panel MTL” point “6. Remote control” for installingthe remote control ready for operation. Foot pedal R11F is used in TIG welding, and its controlrange is adjustable. The minimum value of control range is set with the panel potentiometerwhen the pedal is not pressed, display shows “LO”. Control range maximum is set similarly bypressing first the PEDAL LO/HI button on the panel, display shows “HI”. Welding is startedwith a light press on the pedal, the arc ignites to the set minimum current. Welding currentgoes to maximum when the pedal is pressed to the bottom. The arc is broken when the pedal isreleased. Adjust again if necessary.3.3. COOLING UNIT OPERATION(MASTERCOOL 10, MASTERCOOL 12)The operation of cooling units Mastercool 10 and Mastercool 12 is controlled by the powersource. The cooling unit pump starts automatically when welding starts. Proceed as follows:1. Start power source.2. Check water level and input flow of the reservoir, add liquid if needed.3. If you use a water-cooled torch you can fill it with water by pressing WATER FILL(HF CONTACT) button for more than 2 seconds.The pump operates for 5 another minutes after welding has been finished to cool the water to thesame temperature as in the machine surrounds. This reduces the need of service.Thermal overloadThe thermal overload light is lit, the machine stops and display shows COOLER when tempera-ture control of the machine has detected cooling water overheating. The cooling unit fan coolsdown the water, and when the light goes out welding can be started again.Water flow signalDisplay shows COOLER when water flow is blocked.3.4. STORAGEThe machine must be stored in a clean and dry room. Protect the machine from rain and directsunshine in places where temperature exceeds +25 °C.