Data Sheet Typ 8739

Data Sheet Typ 8739

Data Sheet Typ 8739

Product catalog summary
Overview
The document provides technical specifications and application details for the LVDT Displacement Sensor Model 8739 with an IN-LINE amplifier, manufactured by Burster Praezisionsmesstechnik GmbH & Co KG. This sensor is designed for measuring linear displacements and can be integrated into various mechanical systems.

Applications
The sensor is suitable for use in machines, servo systems, motor vehicles, test benches, and production plants. It measures linear displacements and indirectly measures mechanical values such as tension, compression forces, extension, torque, and vibration.

Description
The sensor features a stainless steel cylindrical case housing a differential transformer (LVDT) with a primary and two secondary coils. The IN-LINE amplifier converts displacement into a proportional electrical DC voltage. The sensor is equipped with a spring-loaded probe tip and bellows for protection against pollution and splash water. The sensor body is galvanically isolated from excitation and measuring signals.

Technical Specifications
  • Electrical Values: Excitation voltage ranges from 13.5 to 28 V DC, with a current input of less than 30 mA. The output voltage is 0 to 10 V, with optional outputs of 0 to 5 V, ±5 V, or 4 to 20 mA.
  • Environmental Conditions: Operational temperature range is -20°C to 80°C, with a temperature influence of 0.03% F.S./K.
  • Mechanical Values: Non-linearity is less than 0.25% F.S., non-repeatability is ±0.1% F.S., and hysteresis is ±0.1% F.S. The sensor is protected to IP60, while the IN-LINE amplifier is protected to IP65.


Order Information
The document lists various models with different measuring ranges and outputs. Accessories such as clamps, fixing brackets, and threaded sleeves are available. Options include different sensor housing and plug configurations.

Additional Information
CAD drawings for the sensor can be downloaded online. The document also provides details on calibration certificates and additional customization options.
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Catalog excerpts

Data Sheet Typ 8739-1

LVDT Displacement Sensor With IN-LINE Amplifier IN-LINE amplifier Displacement sensor with threaded sleeve Displacement sensor Sensor with or without IN-LINE amplifier Vibration and wear free 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. 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. Typical application fields are displacement and extension measurements on ► Machines ► Servo systems ► Motor vehicles ► Test benches ► Production plants Technical changes reserved. All data sheets at www.burster.com burster praezisionsmesstechnik gmbh & co kg Germany www.burster.com Talstr. 1-5 . Gernsbach 76593 . Phone +49-7224-6450 [email protected]

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Data Sheet Typ 8739-2

Technical Data Measuring range 0 ... 25 mm on request Electrical values Excitation voltage (protected against wrong polarity): 13.5 ... 28 V DC Excitation voltage at Ua 0 ... 5 V: 9 ... 28 VDC Output voltage of measuring range: (standard): 0 ... +10 V Ripple of output voltage: approx. 20 mVss Internal carrier frequency: 4 kHz Load resistor: reccom. > 1 MW Environmental conditions Operation temperature range (only sensor): - 20 °C ... 80 °C Nominal temperature range (only sensor): - 20 °C ... 80 °C * relating to the range of nominal temperature. Mechan ical values Non-linearity: Non-repeatability:...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.