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Fife SE-31 Intrinsically Safe Ultrasonic Sensor

  • Specifically designed for hazardous locations certified by UL, cUL (US and Canada and CENELEC Europe)
  • Compact, versatile sensor will sense the thinnest and clearest films, as well as most opaque webs
  • Immune to web plane changes and unaffected by optical variation or ambient light, including sunlight
  • No special sensor orientation is required to avoid the effect of standing waves
  • Temperature compensated, microprocessor-based design
  • Closed-face transducer - splash proof
  • Compatible with all Fife Web Guide Controllers
  • Standard sensing gap of 50.8 mm (2 inches) with a control range of 7.62 mm (0.3 inch)
  • Flexible mounting and positioning assemblies ensure quick and easy installation
  • Electrostatic discharge protection

The SE-31-IS Ultrasonic Sensor is specifically designed to perform in hazardous locations, Class I, Division 1, Groups C & D. Ideal for guiding thin or clear films, as well as most opaque webs, this sensor is fully certified under UL, cUL (US and Canada), and CENELEC (Europe).

The SE-31-IS has control range of 7.62 mm (0.3 inch), a sensing gap of 50.8 mm (2.0 inches), and requires the same 12 VDC power supply as most other Fife sensors. The maximum sensor voltage and current is protected through a safety barrier
located outside of the hazardous area. Maximum cable length from the sensor to the controller is 4.19 m (165 feet).

Fife SE-31 Intrinsically Safe Ultrasonic Sensor Specifications

  • Linearity5% nominal maximum error
  • Plane Change5% nominal maximum error
  • Power Requirements+12 VDC
  • Output Rate0 to 10 mA
  • Update Rate3 ms
  • Weight432.1 grams
  • Temperature Range5 to 60˚ C


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