The optimizer unit with flow meter interlock is an advanced device used in welding systems to precisely adjust and control the flow of gases, such as argon or gas mixtures. The optimizer ensures accurate adjustment of gas flow, which is crucial for welding quality and work efficiency. The built-in flow meter lock allows the user to lock the set flow values, preventing accidental changes to the settings during operation. This ensures the operator that the gas flow will remain stable and in accordance with the requirements of the welding process. In addition, the optimizer unit can be equipped with flow-monitoring functions to keep track of gas parameters in the system.