LVDT sensor WLR

Cylinder displacement transducer (unpressurised) with hole flange for installation in the cylinder base with internal sensor and core rod. The LVDT sensor with a case diameter of 12mm has a coil unit calibrated to 80mV/V with a fully symmetrical coil design according to the LVIT differential choke principle with half-bridge circuit. The design guarantees high temperature stability with very low temperature drift. Variants with different carrier frequencies as well as for increased temperature and dynamics are available.

Special versions with modified flange dimensions, versions for high acceleration and with integrated electronics according to customer requirements are possible.

Important features

  • Nominal stroke: 10 mm up to 500 mm
  • Mechanical stroke: 20 mm up to 516 mm
  • Symmetrical half-bridge circuit LVIT
  • Operating temperature: -50 ... 80 °C, option: up to 120 °C
  • Case diameter: 12 mm
  • Protection (DIN 40050): IP 64

Technical data

    WLR 10
WLR 20 WLR 40
WLR 50
WLR 100
WLR 150
WLR 200
WLR 250
WLR 300
WLR 400
WLR 500
Nominal stroke mm ±5 ±10 ±20 ±25 ±50 ±75 ±100 ±125 ±150 ±200 ±250
Mechanical stroke mm 20 30 60 60 120 170 220 270 320 420 516
Dimension A mm 30 35 45 50 75 100 125 150 175 225 275
Dimension B mm 65 85 130 130 230 340 440 550 660 860 1050
Sensor weight (approx.) g 440 460 480 480 520 550 600 630 680 750 840
Core weight (approx.) g 6 8 9 9 12 15 20 25 30 40 50
Sensitivity mV/V/mm 16 8 4 3,2 1,6 1,07 0,8 0,64 0,53 0,40 0,32

Properties

  WLR 10 ... 500
Nominal output signal* 80 mV/V
Supply voltage up 5 V
Carrier frequency 5 ... 10 kHz
Linearity**  ±0,25 % F.S.O, option:  0,1 %
Temperature coefficient of zero ±0,02 % / 10 K
Temperature coefficient of sensitivity ±0,05 % / 10 K
Operating temperature**
-50 °C ... +80 °C, option: up to 120 °C
Protection class according to DIN 40050 IP 64
* Tolerance of the calibration: ±3 mV/V
** Specify options on order

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Dimensional drawings / Connection variants

WLR

dimensional drawing wlr

Radial cable connection

Teflon cable 150 mm long, assembled with 6-pin Molex connector

Core channel continuous

wlr radial cable connection

Downloads

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