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How to adjust the power of industrial ozone generator? Is there a requirement?

Before, Chief Engineer Zhou of Shanghai Kangjiu Disinfection Co., Ltd. and our company said that the power adjustment method of industrial ozone generator was: 1. Analog quantity: ①0-20mA, ②4-20mA, ③0-5v, ④ potentiometer; 2. Digital quantity: QEI (incremental rotary encoder); 3.PC communication adjustment.