Universal vibration level switches for liquids

• Operates at very high and low temperatures/pressures
• Pump dry-run detection
• Overfill protection (acc. to WHG regulations)
• High reliability due to permanent fault monitoring function

OPTISWITCH 4000/5000 series operates using a vibrating fork to reliably detect the level of liquids independently of adhesion on the fork, container vibrations or changing product properties. Thanks to the high reproducibility of the switching point and the integrated function monitoring, the OPTISWITCH can be used for high and low level alarms, overfill protection, dry-run detection or pump control in virtually every liquid application.

Highlights

• Output options: relay, transistor, NAMUR, contactless electronic switch and 2-wire
• Plastic, aluminium or stainless steel housings
• Process temperature/pressure range: -196…+450°C / -321…+842°F and -1…160 barg / -14.5…2320.6 psig
• Plastic housing: LED signal lamp indicates the switching condition
• Large choice of materials for wetted parts incl. Inconel Alloy 718 with 316L or Hastelloy C22, 316L, Hastelloy C4, enamel, ECTFE and PFA.
• Probe length: 40...6000 mm / 1.58...236.22"
• Repeatability: ±2 mm / ±0.08”
• Process connections starting from G/NPT ¾; DN25 PN40; hygienic fittings 1”
• Detection of liquids with very low densities, optional down to ≥0.42 kg/l | 26.22 lb/ft³ (e.g. ammonia)

Industries

• Chemicals
• Food & Beverage
• Oil & Gas
• Petrochemicals
• Power
• Water & Wastewater

Applications

• Reactors
• Steam boilers
• Distillation columns
• Hygienic and sanitary applications
• LNG tankers
• Liquid nitrogen or ethylene tanks
• Process and storage tanks for liquids
• Dry-run and overfill protection