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Submersible Optical Switch for Level or Leak Detection

Optic Sensors


Item# LVF-212A-R

In stock

Lead Time (If not in stock): 8 weeks
Optic Sensors LVF-212A-R LVF-212A-R
  • Pulsed, Infrared Light Excitation (Leak Detection Solution)
  • SPST Relay Standard
  • Impervious to Most Ambient Light Conditions
  • Mounted any Orientation, Wet or Dry

LVF-212A-R Model Options

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Wetted Materials
Media Type
Max Operating Pressure
Max Process Temperature
Process Connection Type
Process Connection Size
Switch Rating and Type

The LVF-200A-R Series optic sensor creates a pulsed beam of infrared light which is reflected on the oblique flat sensor tip. If the tip is dry, the light beam is recognized and if it is wet, the beam reflects back into the liquid. The optic sensor is factory calibrated for use with clear or translucent liquids. The shape and optic characteristics of the oblique flat optical surface provide a high level of optical efficiency, including resistance to ambient light and process condensation. Although the sensor offers very broad liquid compatibility, it is not recommended for use with coating or highly specular liquids. Ideal for leak detection.

Accuracy: ±1 mm (0.04") in water
Repeatability: ±0.5 mm (0.02") in water
Operating Principle: Pulsed, infrared light beam
Voltage Input: 12 to 36 Vdc @25 mA
Relay: 60 VA, 1 A maximum
Switch Mode: Selectable, SPST, NO or NC states
Wetted Materials: Polypropylene (PP) or Perfluoroalkoxy (PFA)
Loop Resistance: 600 ? @ 24 Vdc
Maximum Pressure Rating PP: 150 psi @ 25°C (76°F) derated @ 1.667 psi per °C above 25°C (76°F)
Maximum Temperature Rating: -40 to 90°C (-40 to 194°F)
Enclosure Rating: NEMA 6 (IP68) submersible sensor and cable
Cable Length: 3 m (10') 4 conductor shielded
Max. Cable Length: 305 m (1000')
Dimensions: 7.6 or 11.4 L x 2.7 cm Dia (3.0 or 4.5 x 1.05") ¾ NPT or ¾ G
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