Membrane level switch DVNI

hydrostaticfor liquidsplastic

• Signal by fluid pressure • Up to 4 levels • 5 meters high • PVC or PP materials with flange support • EPDM or FPM seals • EPDM or FPM signal • 30mA / 24VDC signal • Reliable pressure determination for non-pressurised containers. • Diaphragm pressure switch w/o fluid contact. • Up to four user-definable switching points 150 – 4.000 mm. • Vent holes to be positioned 100mm below the switching points. • Hydrostatic level determination. • IP 65. Advantage • From 1 to 4 switching points • Membrane pressure switch without fluid contact • Air pressure transmission • Low switching pressure • Materials resistant to corrosion • Automation of the process, p. ex. as an optical or acoustic signal Applications • Construction of chemical facilities • Construction of industrial facilities Use • Used to monitor fluid levels in pressureless containers or open pits • As a marker in case a fixed fill level is not reached or exceeded Indication • The NIS is not authorized as an overfill protection device in accordance with §19 WHG (German Water Law)! • Due to the air absorption capacity of most liquids, the immersion tubes must be aerated at certain time intervals to avoid displacement of the switching positions.