Endress+Hauser FTL33 Series Vibration Level Switch Level Switch, Threaded Mount, Housing 316L Stainless Steel

This level switch is a vibration-based sensor designed to detect liquid or bulk-material presence within industrial installations. It operates across a wide ambient temperature range and connects via an attached cable for straightforward signal transmission. Built in corrosion-resistant metal, the device is intended for routine point-level detection in non-classified areas and integrates with threaded process connections.

• Stainless steel 316L housing for corrosive environments
• Operates from -40 to 70°C for varied ambient conditions
• Withstands up to 10 bar static pressure for pressurised vessels
• Low current draw of 15 mA reduces power load
• Compatible with 253V AC and 30V DC supply systems
• Supplied with 5m cable for flexible mounting distance

• Suitable for pump protection to prevent dry running
• Ideal for high-side overfill indication on tanks
• Used with transfer lines where point-level control is required
• Can be used for sump-level monitoring in workshops
• Suitable for integration into basic control cabinets in plant rooms

It fits into a threaded process port, allowing secure installation and straightforward replacement without specialised adaptors.

It is not certified for hazardous-area use and should only be deployed in non-classified locations.

The wetted parts are manufactured from 316L stainless steel to provide chemical resistance and reduced corrosion risk.

The switch tolerates mains-level AC up to 253V and low-voltage DC up to 30V while operating on a low current consumption of 15 mA.