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    LVDT Signal Conditioner | LVDT Amplifier

    Delivers a Conditioned Analogue Output from your LVDT Transducer

    At a Glance

    • 4.5Vac LVDT Excitation @ 1-5kHz
    • Output: 0-5Vdc, 0-10Vdc, 4-20mA, 0-20mA, ±5Vdc or ±10Vdc
    • Environmental Protection: IP65
    • Bandwidth: 200Hz max.
    • Mains & 18-24Vdc Versions
    • Delivers Conditioned Analogue Outputs From Your LVDT Transducers 
    • Wide Bandwidth (20 HZ) Ideal for Test & Measurement Applications
    • Choose an AC or DC Powered Unit Depending on Your Setup
    • Ideal to use in Harsh Environments – Total Dust & Low Pressure Water Jet Protection


    The LVDT signal conditioner / LVDT amplifier from Applied Measurements is designed specifically for use with LVDT displacement transducers to provide a conditioned analogue voltage or current output.

    There are two versions of the LVDT signal conditioner available: the LVDT/A which operates from 110/240Vac and the LVDT/D requires a DC supply of between 18 and 24 Volts.

    The LVDT signal conditioner provides an excitation voltage of 4.5Vrms with switch selectable frequencies ranging from 1kHz to 5kHz, making it suitable for use with LVDTs from many different manufacturers.  LVDT sensitivities between 20 milivolts and 10 volts can be adjusted for using DIL switches with potentiometric fine adjustment of zero and gain for precise calibration.

    A wide frequency response is available from DC to 200Hz, plus a low pass filter when required to reduce high frequency fluctuations or induced electrical noise.

    Suitable LVDT displacement transducers for use with the LVDT signal conditioner can be found in our LVDT Displacement Sensor product section.

    Technical Specifications

    Power supply AC LVDT/A only (110/230 V AC) 50-60Hz99/198110/230126/253Vac
    Power supply DC: LVDT/A and /D182428Vdc
    Power supply current DC: (depends on loading)138145150mA (200R)
    Excitation-4.5-V rms
    LVDT Frequency (Selected by Switch 1,2,3,4,5 kHz)1-5kHz
    LVDT Impedance50200-Ohms
    LVDT Sensitivity (switchable)0.02-10V
    Gain Adjustment (Pot – fine adj)--25% FSD
    Offset Adjustment (Pot – fine adj)--10% FSD
    Offset Adjustment (Switchable – coarse adj)--30% FSD
    Output Load (voltage output)0-2mA
    Output Load (current output)--500Ohms
    Filter cut-off (switchable ranges)5-200Hz
    Zero Temperature Coefficient-24µV/˚C
    Span Temperature Coefficient-0.010.015%/˚C
    Linearity-0.050.1% FSD
    Gain Stability- 1st 1000 hours-0.20.4% FSD
    90 Day Offset Stability-610µV
    Noise (1kHz / 20Hz filter / DC powered)-37mV p-p
    Output Options±10V, ±5V, 0 - 10 V, 0 - 5V, 0 - 20mA, 4 -20mA. NB: Current output is link selectable for source or negative sink (common negative or common positive.
    Operating Temperature0-50˚C
    Storage Temperature-20-70˚C
    Humidity95 maximum non condensing%
    ConnectionsField screw terminals - 2.5mm² rising clamp
    EnclosureABS case 160 x 80 x 55 sealed to IP65 fitted with 3 off cable glands
    ControlsGain pot, Offset pot, Coarse gain switches, Coarse offset switches, Filter cut-off switches, Frequency select switch, Output mode switch.
    Environmental ProtectionABS case sealed to IP65
    Dimensions160 x 80 x 55 (depth)mm
    Safety/Low Voltage Directive73/23/EEC amended by 93/68/EEC
    BS EN 61010-1:2001, IEC 1010-1-1990
    EMC Directive89/336/EEC
    Basic Standard BS EN 61326:1998
    EMC EmissionsBS EN 55011:1998
    EMC ImmunityBS EN 61000-42:1995
    BS EN 61000-4-3:2002
    BS EN 61000-4-4:2004
    BS EN 61000-4-11:2004

    Product Dimensions

    LVDT Signal Conditioning Amplifier Outline Drawing

    Ordering Codes & Options

    Core ProductSupply VoltageExample Result
    LVDT99-120/ 198-253VacLVDT/A Amplifier
    LVDT18-28VdcLVDT/D Amplifier


    Other Downloads

    Why Applied Measurements?

    • Suppliers of top quality strain gauge sensors and transducers to every corner of industry - UK and worldwide
    • Over 100 years of expert transducer knowledge
    • Our high quality products all come with a 3 year warranty
    BSI Assurance Mark ISO 9001:2015 FS677584
    We Are a Living Wage Employer
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