Endress+Hauser FTW33 Series Conductive Level Switch Level Switch, Threaded Mount, Vinyl Methyl Silicone, Housing 316L

This conductive level switch detects liquid presence using an electrical conduction principle and is intended for industrial fluid monitoring. It is constructed for deployment via a threaded connection and is supplied with a 5m cable to connect to control systems. The housing is metal and suited to environments requiring corrosion resistance while operating across a wide ambient temperature range.

• 316L stainless steel housing resists corrosion and prolongs service life
• Rated for 10 bar overpressure up to a maximum of 25 bar for pressurised vessels
• Operates from -40 to 70°C for broad temperature applications
• Low-current switching at 30V DC and 15 mA minimises power draw
• Ethylene propylene diene monomer gasket provides chemical sealing
• Non-hazardous-area design simplifies site classification handling

• Used for level detection in potable and process water tanks
• Suitable for monitoring liquid levels in pressurised vessels up to 25 bar
• Ideal for integration with control cabinets requiring low-voltage inputs
• Can be used for conductive-liquid detection where stainless steel wetted parts are necessary
• Used with industrial sensors where threaded mounting is preferred

It uses a threaded mount to secure into tank ports or flanges, providing a straightforward mechanical attachment for inline or sidewall installation.

The unit switches at low DC parameters and is compatible with low-current input circuits, using the supplied 5m cable for signal and power routing.

The instrument is not certified for hazardous-area installation and should only be installed in non-classified locations or within appropriate protective enclosures.

The sealing element is made from EPDM, offering resistance to a range of aqueous media and maintaining a pressure-tight seal.