8739 LVDT transducer with IN-LINE amplifier

• Features

  • Ranges from 0 … 1 mm to 0 ... 25 mm
  • Non-linearity 0.25 % F.S.
  • Sensor diameter 8 mm
  • Vibration and wear free
  • Output 0 ... 10 V
  • Optional output 0 ... 5 V, ± 5 V, 4 ... 20 mA
  • Sensor with or without IN-LINE amplifier

• Product data

  Model	8739
  Principle	Inductive
  Measuring range	0 … 1 mm 0 … 2 mm 0 … 5 mm 0 … 10 mm 0 … 25 mm (without return spring)
  Signal output	0 ... 10 V 0 ... 5 V ±5 V 4 ... 20 mA 10 ... 0 V 5 ... 0 V LVDT
  Protection class	IP60
  Range of operating temperature	-20 ... +80 °C
  Excitation voltage	13,5 ... 28 VDC
  Electrical connection	Shielded PVC cable
  Return spring	Yes
  Options	None With threaded sleeve M12 x 1.75 Tip not glued
  Specific characteristics	Sensor diameter 8 mm Vibration and wear free Sensor with or without IN-LINE amplifier Optional protection class IP65

• Description

  Inductive displacement sensors of this series measure linear displacements and indirectly all mechanical values convertible into displacements by additional equipment (i.e. tension and compression forces, extension, torque, vibration). The sensor body equipped with a connector has an outer diameter of only 8 mm and therefore is especially well suitable for the integration in dimensionally restricted structures.
  
  Typical application fields are displacement and extension measurements on

  • Machines
  • Servo systems
  • Motor vehicles
  • Test benches
  • Production plants

  The cylindrical case made of stainless steel, houses a differential transformer (LVDT). It consists of a primary and two secondary coils with axially moveable core. A displacement of this core changes the magnetic induction of the coils. The INLINE carrier frequency amplifier converts the displacement into a direct proportional electrical DC voltage.
  
  The transducer is constructed as a probe at which within the measuring range a spring pushes the probe tip towards the measuring object. Bellows protect the mechanical guidance of the probe tip against pollution and splash water.
  
  The IN-LINE amplifier is integrated in the connector cable and adjusted specifically to the sensor. Both components form a unit while they can be separated for mounting purposes (miniature plug connection at the transducer). The use of not harmonized components may lead to increased measurement errors. For the IN-LINE amplifier version the sensor body is galvanically isolated from the excitation and from the measuring signal.
  
  Lateral forces decrease the durability.

• Data Sheet & Downloads

  Data sheet

  8739

  DEENPL

  Operation manual

  8739

  DEEN

  Software

  DigiVision

  DeEn

  Version information DigiVision

  DEEN

  Info about DigiVision

  DEEN

• Accessories

  Sensor fixing bracket

  DEEN
  M 12 threaded sleeve

  DEEN
  Sensor holder

  DEEN
  Probe tips

  DEEN

• Application Examples

  

  Roundness measurement

  on an electric motor

  Detail

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