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LVDT sensor DMF

Inductive differential transformer LVDT sensor in exceptionally short design

  • Electrical connection

  • Pressure resistant up to 120 bar

Important features

  • Nominal stroke: up to 8 mm
  • Case diameter: 3 mm
  • Operating temperature: -30 °C up to +120 °C

  • Protection class (DIN 40050): IP 65

Technical data

    DMF 8 Q
Usable measuring range   ±3 (= 6) mm
Nominal stroke   ±4 (= 8) mm
Working span (electr. continuous travel) up to   ±5 (= 10) mm
Dimension A (position of the magnetic core in relation to the front surface) ±0,5 mm -8,6 mm
Carrier freq.   5 kHz
Excitation max. 5 Veff
Primary impedance (core @ zero) @ 5 kHz > 400 Ohm
Primary inductance @ 5 kHz typ. 28 mH
Sensitivity typ. 40 mV/V/mm
Linearity error at < ±3 mm measuring range ±4 (= 8) ±0,3 typ. % bez. auf
Linearity error at < ±4 mm measuring range ±4 (= 8) ±0,5 % bez. auf
Transducer weight (with cable)   ca. 125 g
Core weight   ca. 5 g
Core dimensions*   Ø 3 x 24,5 ±0,5 mm
Operating temperature   -30 °C ... 120 °C
Protection (DIN 40050)   IP 65
Compressive strength (submersible anchor side)   120 bar

* (made of magnetisable stainless steel; a non-magnetisable material must be used for the core holder)

Dimensional drawings / connection variants

Dimensions

1) Size and procurement of O-ring on customer side

2) Dimensions O-ring groove customer side
dimensional drawing dmf

Electrical connection

Teflon cable 1 m long, with open strands

electrical connection dmf

Downloads

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Accessories

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Accessory 1

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Accessory 2

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Accessory 3

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