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In industrial production, level measurement is always a key factor in ensuring the safety and efficiency of processes. With the rapid development of industries such as petrochemicals and pharmaceuticals, issues such as signal interference caused by complex operating conditions in reaction vessels, and the erosion of instruments by highly corrosive media are severely affecting the accuracy of industrial measurements. Traditional level switches suffer from issues such as reduced accuracy, short lifespan, and high maintenance costs in practical applications. In this case study, the Dinghua Electronics DHE-FT fork-type level switch utilizes a corrosion-resistant material system and intelligent signal processing technology to extend the instrument’s service life and significantly improve measurement accuracy, providing reliable solutions for complex operating conditions such as exposure to highly corrosive media and agitation in reaction vessels! Striving for excellence through technological innovation to accelerate sustainable development ■ User: A company in Zhejiang ■ Application: Mixed-reactor The operating conditions inside the mixed reactor at the user’s production site are extremely complex. Media such as water, hydrochloric acid, and resin are thoroughly mixed under the action of a mixer; during this process, various measurement-interfering factors such as splashing, vibration, foam, and solid particles arise continuously, causing conventional level switches to often \"fail\" and be unable to function properly. DHE-FT fork-type level switch. Solution for the DHE-FT fork-type level switch: This switch features a \"fast-drop\" type fork design, which enables it to quickly detect when the liquid level is reached, even in the presence of strong disturbances caused by high-flow liquids. It helps to minimize the impact of viscous media sticking to the switch, thereby significantly improving its response speed. Furthermore, thanks to Dinghua Electronics’ unique \"ELL signal analysis technology\" and more than 30 years of data accumulation, the tuning fork switch features advanced intelligent processing methods that enable it to effectively overcome the interference caused by foam, adhesion, and changes in medium composition, ensuring its long-term stable operation under various complex field conditions! Applications in highly corrosive medium environments ■ User: A company in Shandong Province ■ Environment: Tanks for storing vinyl silicone oil/hydrochloric acid/sodium hydroxide. The tank area stores vinyl silicone oil/hydrochloric acid/sodium hydroxide respectively; these substances have reactive chemical properties, as well as high volatility and corrosivity ； Traditional contact-type switch materials (ordinary stainless steel or coated materials) are prone to corrosion, which can lead to damage to the fork structure, inaccurate measurements, and even safety accidents ； DHE-FT fork-type level switch solution: The DHE-FT fork-type level switch benefits from Dinghua Electronics’ advanced manufacturing techniques, ensuring reliable measurements on-site without causing secondary pollution; it offers unique advantages when dealing with corrosive environments. The liquid-contacting part of the tuning fork level switch is manufactured using a 316L+ECTFE process, which further enhances its resistance to corrosive media. This coating not only effectively prevents erosion by highly corrosive substances such as sodium hydroxide, but also maintains its stability within a temperature range of -40°C to 150°C, ensuring the long-term reliable operation of the fork in complex corrosive environments. In addition, the DHE-FT fork-type level switch also features fork damage monitoring technology. By using software to monitor the vibration frequency trend of the fork in real time, and by analyzing these frequency changes to determine whether the fork is corroded and to assess the extent of corrosion, it is possible to monitor its corrosion status throughout its entire life cycle, thereby providing a reliable guarantee for users’ level measurement tasks.