There are such offerings available on the market; however, ESAB cannot recommend using them because they do not fulfill a clear requirement of EN ISO 15612 that necessitates the equipment used in production to be capable of achieving the same electrical and mechanical properties as the equipment used for qualifying the procedure. In most cases, an inverter-based welding machine is used to qualify the procedure. There is no guarantee that any arbitrary piece of equipment can replay the parameters and achieve the certified result. For instance, step-controlled equipment cannot provide mains compensation or reliable readings.