Point level switch for hygienic processes

The FTW33 point level switch by Endress+Hauser is designed for hygienic processes and can be used with or without an agitator in a variety of uses.


The FTW33 point level switch by Endress+Hauser is designed for hygienic processes and can be used with or without an agitator in a variety of uses. Courtesy: Endress+HauserEndress+Hauser's Liquipoint FTW33 point level switch is designed for hygienic processes and meets FDA requirements as well as 3A Sanitary Standard Number 74. It can be used in pipes; and in storage, mixing and process vessels with or without an agitator. 

The Liquipoint FTW33 conductivity sensor is built for tough applications in the food and beverage market. The Liquipoint FTW33 measures the presence of conductive liquids with an electrical conductivity greater than 1 µS/cm. It also has an optional build-up compensation feature that allows it to switch reliably in heavy build-up and viscous products like tomato paste, honey, molasses, and peanut butter. The sensor can also be used for detecting the foam that commonly occurs in the food industry. 

Materials in contact with the process are made of 316L stainless steel with PEEK insulation, making the FTW33 suitable for use in processes that require cleaning and sterilization. The sensor can be used in process pressures from –14.5 to +362.5 PSI, and temperatures up to 212°F . It can also be used in cleaning and sterilization processes to 302°F for up to 60 minutes, and is resistant to typical cleaning agents. The sensor has a DC-PNP 3V switching output when it can be used for point level. These signals are typically used for overfill and high level detection, or for low level detection to prevent a pump from running dry.



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