Fieldbus Field Device – Vibration Limit Switch

Product description:

The Vibration Limit Switch can be used in all liquids and provides many remarkable benefits:

• EEx ia and EEx d protection enable it to be used in hazardous areas
• no calibration, thereby quick and low-cost startup
• no mechanically moving parts, thereby no maintenance, no wear and long operating life
• monitoring of fork for damage, thereby guaranteed function
• FDA-approved material

The piezoelectrically activated vibration of a vibrating fork is damped when the fork comes into contact with the medium. Using the change, an electronic system determines the switching signal. The function is independent of fluctuations in the physical properties of the medium. Vibration Limit Switch is selectable with:

• compact design (mountable in pipes for areas difficult to access) / extension pipe (up to 6 m) / polished tuning fork and easy-to-clean process connections and housing (for food and pharmaceutical applications)
• high corrosion-resistant alloy is available for the fork and process connections for applications in very aggressive liquids
• temperatures of up to 150 °C (423 K)
• for pressures up to 64 bar
• for viscosity up to 10000 mm²/s
• for densities 0.5 g/cm³ or 0.7 g/cm³
• foam detection
• large number of process connections to choose from
• wide variety of electronics, e.g. NAMUR, relay, thyristor, PFM signal output
• application for safety systems requiring functional safety to SIL2 in accordance with IEC 61508/ IEC 61511-1

For more information, please visit us at www.pepperl-fuchs.com/level

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