The Messotron DOI Series Linear Inductive Displacement Transducers (LVDT) represent a top-tier, high-end industrial solution for heavy-duty position tracking and mechanical stroke validation, thoroughly designed and engineered at Messotron's state-of-the-art production hubs in Germany. This comprehensive sensor line consolidates all variable range models including the DOI 25, DOI 50, DOI 100, DOI 150, DOI 200, DOI 300, DOI 400, DOI 500, DOI 600, DOI 800, and DOI 1000. Operating on the trusted Linear Variable Differential Transformer (LVDT) principle, these heavy-duty devices smoothly translate physical linear reciprocating motions into high-precision, linear electromagnetic data. The core technological advantage characterizing the DOI family is the specialized integration of its onboard DC/DC conditioning and intelligent electronic amplifier circuitry embedded directly within the sensor cylindrical shell, paired with a completely frictionless non-contact inductive tracking principle.

Leveraging this integrated premium electronic architecture, the Messotron DOI Series is fully capable of directly converting internal micro-scale inductive electromagnetic fluctuations into industry-standard analog signal configurations, such as 4-20mA current loops or 0-10V / 0.5-4.5V voltage outputs. This native functionality eliminates the necessity of purchasing and wiring external carrier frequency amplifier modules within remote remote electrical cabinets. Consequently, it simplifies cable termination schemes, drastically optimizes physical installation space layout parameters, and completely isolates data streams from negative transmission influences such as line voltage drops or external signal cross-talk attenuation across long conduit distances. The frictionless non-contact principle operating between the freely moving armature core and the sensor core bore completely avoids mechanical drag, physical sliding contact, and material friction. Thus, physical part degradation, internal component wear, and mechanical fatigue are fully eliminated, ensuring absolute measurement repeatability over prolonged continuous schedules and delivering a near-infinite runtime lifespan on the factory automation floor.

The hardware envelope of the Messotron DOI Series features a heavy-duty cylindrical outer sleeve profile strictly optimized to accommodate broad measurement metrics spanning from a short 25mm up to ultra-long 1000mm (1 meter) total stroke capacities, flawlessly providing excellent structural layout flexibility for electrical and control loop design engineers handling automated systems. The sensor shell is machined from heavy-gauge, high-grade stainless steel with a micro finish, achieving strict ingress ratings of at least IP65 or IP67 protection classes. This robust structural armor acts as an impenetrable shield safeguarding the highly sensitive internal transformer windings and integrated electronic boards against hostile workshop dynamics, including abrasive industrial grit, high-pressure fluid sprays, cutting oil mists, ambient condensation, and severe structural vibrations emitted by massive surrounding machinery matrices. The DOI integrated amplifier LVDT sensor family serves as an automotive backbone for closed-loop control loops tracking large hydraulic actuators, regulating industrial mill roller presses, positioning heavy transport automation beds, and ensuring runtime reliability across massive manufacturing systems. Specifying the Messotron DOI Series is the premier choice for facilities seeking uncompromised operational continuity and maximal machinery runtime safety parameters.

• Manufacturer: Messotron
• Country of Origin: Germany
• Product Category: Integrated Electronic Amplifier Inductive Linear Displacement Transducers (DC-DC LVDT)
• Consolidated Consolidated Model Registries: Messotron DOI 25, DOI 50, DOI 100, DOI 150, DOI 200, DOI 300, DOI 400, DOI 500, DOI 600, DOI 800, DOI 1000.
• Core Technology: Linear Variable Differential Transformer - High-reliability mechanical frictionless non-contact inductive tracking
• Integrated Electronics: Onboard built-in electronics conditioner module outputting industry-standard analog signals
• Standard Analog Interfacing Options: 4-20 mA current loop, 0-10 VDC voltage output, or ±5 VDC differential voltage
• Required System Input Power: Standard industrial 24 VDC input (Optional ±15 VDC configurations available)
• Nominal Linear Measuring Strokes per Model Designation:
  - Model DOI 25: Linear stroke range ± 12.5 mm (Total travel capacity 25 mm)
  - Model DOI 50: Linear stroke range ± 25 mm (Total travel capacity 50 mm)
  - Model DOI 100: Linear stroke range ± 50 mm (Total travel capacity 100 mm)
  - Model DOI 150: Linear stroke range ± 75 mm (Total travel capacity 150 mm)
  - Model DOI 200: Linear stroke range ± 100 mm (Total travel capacity 200 mm)
  - Model DOI 300: Linear stroke range ± 150 mm (Total travel capacity 300 mm)
  - Model DOI 400: Linear stroke range ± 200 mm (Total travel capacity 400 mm)
  - Model DOI 500: Linear stroke range ± 250 mm (Total travel capacity 500 mm)
  - Model DOI 600: Linear stroke range ± 300 mm (Total travel capacity 600 mm)
  - Model DOI 800: Linear stroke range ± 400 mm (Total travel capacity 800 mm)
  - Model DOI 1000: Linear stroke range ± 500 mm (Total travel capacity 1000 mm / 1 Meter travel capacity)
• Full-Scale Linearity Deviation Tolerance: Extremely tight specification standard of ≤ ±0.25% to ±0.5% across total stroke limits
• Temperature Output Drift Factor: Ultra-low thermal coefficient, preventing data variance under ambient workshop climate variations
• Ingress Protection Compliance: Standard IP65 protection rating, hermetically sealed options available for IP67 classification
• Outer Shell Structural Composition: Heavy-duty premium-grade stainless steel engineered for excellent mechanical and corrosion tolerance
• Electrical Interfacing Layout: Standard multi-pin M12 heavy-duty industrial screw-threaded connector blocks or highly shielded molded signal cables
• Optional Mounting Hardware Accessories: Spherical rod joints, threaded armature extensions, rigid cylindrical sensor mounting clamps