Connect the air line jogging from an air compressor to the air regulator located on the back of the plasma cutter. Turn on the air compressor and Permit the compressor to build pressure and also set a piece of scrap metal on a non-combustible work surface. Place a fire extinguisher near your work area. Once you have done with the above procedures, try to secure the plasma cutter lead to the scrap metal or work surface. Now turn on the plasma cutter and set up its heat to the highest setting. Now grasp the plasma gun trigger and pull the plasma gun over the surface of the metal. Inspect the cut, if you notice any excessive dross cooled melted metal hanging from the cut, and then turn down the heat setting of the plasma cutter.
After being inspected, then adjust the cut so that there is no dross remains on the edges of the plasma cut. That's it now you can safely work with the plasma cutting machine. Now let us see how to evaluate the plasma cutter. The thicknesses of the metal you are going to cut is essential and always get the machines with higher amperage because machines with the higher amperage cuts faster and easily than the lower amperage. Test the cutting speeds of different plasma cutters with the same amperage to choose which machine works quickest through metals of the same thickness. You should examine the cuts to see how smooth the metal cuts and test the machine to determine the tightness of the arc and then try drawing a thick line over the metal to see how well it stay within the line.
Check whether the plasma torch cutter is comfort in your hand and don't forget to evaluate the plasma cutting machine with its duty cycle and look for a plasma cutter with different alternative starting methods. Read the welder manual to know its ratings, especially consumables ratings and your machine should be comfortable and portable. With all these steps, it is sure that you can have a good welding with the plasma cutting machine.