Endress+Hauser FTL31 Series Vibration Level Switch Level Switch, Threaded Mount, Housing 316L Stainless Steel

This vibration level switch monitors presence or absence of bulk solids and liquids by sensing mechanical oscillation changes and is intended for industrial tank and vessel monitoring. Constructed for corrosive environments, it uses robust materials and is suited to threaded installations where continuous remote cabling is required.

• 316L stainless steel housing provides corrosion resistance and longevity
• Operates between -40°C and 70°C for wide thermal ranges
• Withstands service pressures up to 40 bar for pressurised vessels
• Draws only 15 mA for low-current signalling and minimal power consumption
• Supplied with 1000m cable for long-distance connection to control systems
• Threaded mount enables straightforward installation in standard ports

• Suitable for tank monitoring in chemical processing plants
• Ideal for level detection in pump sump protection systems
• Used with storage silos for bulk-solid presence sensing
• Can be used for interface or high/low level alarms in pressurised vessels
• Appropriate for remote installations requiring long cable runs

It fits into a threaded port and is tightened to the vessel connection, offering a compact mounting solution compatible with standard threaded fittings.

The device draws a maximum of 15 mA, so supply and input circuits should accommodate low-current sensing and any upstream input circuitry must support that level.

Yes

It does not carry hazardous-area certification and must not be used where such certification is required.