8740, 8741 DC/DC displacement transducers

Inductive, for the measuring of displacements or magnitudes that can be converted into displacement, integral measuring amplifier, robust, vibration and shockproof, special versions by request

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      • Features

        • Measurement ranges 0 ... 1 mm to 0 ... 150 mm
        • Non-linearity ± 0.25 % F.S., optional to 0.1 % F.S.
        • Integrated measuring amplifier, output 0 ... 5 V
        • Optional 0 ... 10 V, 4 ... 20 mA
        • Potted electronics not susceptible to vibration or impact
        • Special versions on request (see options)
      • Product data

        Model 8740, 8741
        Principle Inductive
        Measuring range

        8740
        0 … 1 mm
        0 … 2 mm
        0 … 5 mm
        0 … 10 mm
        0 … 25 mm
        0 … 50 mm
        0 … 100 mm
        0 … 150 mm

        8741
        0 … 1 mm
        0 … 2 mm
        0 … 5 mm
        0 … 10 mm
        0 … 25 mm
        0 … 50 mm

        Signal output

        0 ... 10 V
        0 ... 5 V
        ±5 V
        4 ... 20 mA
        10 ... 0 V
        5 ... 0 V

        Protection class

        8740
        IP64

        8741
        IP60

        Range of operating temperature -20 ... +80 °C
        Excitation voltage 9 ... 28 VDC
        Electrical connection

        8740
        3 wire, screened PVC cable 2 m

        8741
        7 pins plug connection

        Return spring

        8740
        No

        8741
        Yes

        Specific characteristics

        • Optional non-linearity 0.1 % F.S.
        • Integrated measuring amplifier, output 0 ... 5 
        • Optional 0 ... 10 V, 4 ... 20 mA
        • Potted electronics not susceptible to vibration or impact
        • Special versions on request (see options)

        8741

        • USB interface through 9206
      • Description

        Inductive displacement sensors using the principle of the differential transformer (LVDT) can be used to measure displacement and, indirectly, magnitudes that can be converted into displacements such as force, pressure, strain, torque, vibration and so forth.

        Thanks to the high quality of their measurements, their high protection and long service life, these sensors are used in many technologies (industry, research, development, etc.).

        Applications include measuring, controlling, regulating and monitoring both slow and fast movements between machine parts, measurements of position and positional changes of components and structural foundations, servo regulators, valve and robot controllers, growth measurements and so on.

        Their design is robust - the internal coils and electronics are potted - as a result of which the sensors can easily withstand shock and vibration. This makes the sensors also suitable for mobile applications (e.g. in vehicles) and for test installations where they will be subject to many test cycles.

        These inductive displacement sensors with integrated electronics incorporate a differential transformer and a carrier frequency measuring amplifier, potted and protected by a stainless steel housing.

        The differential transformer consists of one primary winding and two secondary windings; these are arranged symmetrically on either side of the primary winding. The integrated electronics demodulates, filters and amplifies the AC voltage induced in the secondary windings. A rod-shaped core is able to move inside the differential transformer. As an output, the sensor delivers a DC voltage whose magnitude proportionally depends on the position of the moveable core inside the sensor.

        Model 8740 incorporates a freely moveable, non-sprung core with two sliding Teflon rings that center the core in the hole through the body of the sensor. At the end of the moving rod is an M2 thread that can be used to couple the core mechanically to the object being measured. Any lateral force acting on the rod should be avoided.

        The moveable rod of model 8741 is mounted on ball bearings. A spring holds the tip of the probe against the object being measured. This version is advantageous when it is difficult or entirely impractical to implement a mechanical coupling. Once again, lateral forces will shorten the service life. The measuring side of the sensor is protected against pollution and splash water by a bellows.

      • Data Sheet & Downloads

        Data sheet
        Operation manual
      • Accessories

        pdf 8740-Z002
        pdf 8740-Z003
        pdf 8740-Z004

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      Company-Information Company-Information

      Absolute Gauge Technologies Inc.
      +1 4167543168
      salesphysicomcorp.com
      www.absolutegauge.com

      Product category :

      • Press-Fit Control / DIGIFORCE®
      • Process Instruments

      Company-Information Company-Information

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      Fon: Adam Giorgione, Christina Giorgione: +1-706-331-0537; Darren McCulley: +1-330-842-5088
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      Absolute Gauge Technologies Inc.

      P.O. Box 462
      Scarborough, ON
      M1E 4Y9
      Kanada

      Fon: +1 4167543168
      Fax: +1 4167542351
      salesphysicomcorp.com
      www.absolutegauge.com

      Local sales support through different rep networks available, please inquire at Absolute Gauge Technologies Inc.

      SERVICES

      • Qualified design, application support
      • Process optimization & rental equipment
      • Qualified commissioning, integration support & training
      • On-site trouble shooting & update service
      • Qualified phone & online support
      • Full repair facilities
      • Local calibration service

      Product category :

      • Press-Fit Control / DIGIFORCE®
      • Process Instruments
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