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Optical Level Sensor, Type VP, Unmodulated, Normally Closed, PNP, 10 to 40 Vdc, 200 mA


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Manufacturer Part No:
Newark Part No.:
Product Range
Type VP Series
Technical Datasheet:
VP01EP   Datasheet
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Product Overview

The VP series Optical Level Sensor with unmodulated, infrared light for the detection of liquids. Fitted with built-in amplifier. Transmitter and receiver is completely self-contained in solid plastic housing designed for mounting into container wall. The device is available in a Polysulphone housing resistant to most acids and bases. The sensor contains IR transmitter, receiver and amplifier with transistor or SCR output. The light source is a Ga-As diode emitting infrared light. The conical tip of the sensor forms an angle of 90°C. This angle acts as a prism, i.e. the beam, emitted from the GaAs diode placed in one side of the sensor head, is reflected internally to the phototransistor placed in the other side of the sensor head, provided that the tip of the sensor is situated in free air. The sensor types can operate in oil, waste water, aqueous solutions such as beer, wine, alcohol etc. without any kind of accessory.
  • Unmodulated infrared sensor for liquid level detection
  • Approved for Ex-applications (DC-types)
  • Built-in amplifier, Ga-As diode
  • Output - Transistor NPN/PNP or SCR, make or break switching
  • High chemical resistance to most acids and bases
  • Output OFF when sensor in liquid
  • No electrical or thermal connection between liquid and electrical circuit
  • LED-indication for output ON


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Technical Documents (1)

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