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Protech Marketing
  • Home
  • About Us
  • Product
    • Sensors & Measurement
      • Sensors (Transducers & Transmitters)
      • Temperature Gauges
      • Digital Counters
    • Process Control
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      • Rotex Angle Seat & Process Valves
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      • Pressure Gauges
      • Pressure Transmitters
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Category Archives: Engineering Guides

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Sensors & Encoders by Gefran Industrial Equipment

Transitioning to Mercury-Free Melt Pressure Transducers: A Complete Engineering Guide

Engineering Guides, Sensors & TransducersBy August 25, 2026Leave a comment

With tightening RoHS and environmental regulations across Europe and global manufacturing hubs, plastic and polymer extrusion plants are phasing out mercury-filled melt pressure sensors. Learn about NaK (Sodium-Potassium) and silicone oil alternatives.

PID Autotuning Best Practices in Modern Plastic Extrusion Lines

Engineering Guides, Process ControlBy August 22, 2026Leave a comment

Eliminate thermal overshoot and achieve sub-degree temperature stability across multi-zone extrusion barrels using microprocessor-based PID autotuning algorithms.

Pressure Transmitters by Trumen Industrial Equipment

Understanding HART Protocol & 4-20mA Signal Loop Integrity

Engineering Guides, Sensors & TransducersBy August 18, 2026Leave a comment

How FSK modulation enables bidirectional digital communication over standard 4-20mA analog loops without requiring additional field wiring or hardware replacement.

Diaphragm Seal Sizing for Corrosive & High-Temperature Fluid Media

Engineering Guides, Sensors & TransducersBy August 5, 2026Leave a comment

Selecting diaphragm materials (Hastelloy-C, Tantalum, Inconel, PTFE coatings) and fill fluids (Silicone, High-Temp Oil, Food-Grade Halocarbon) for sanitary and chemical processes.

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Transitioning to Mercury-Free Melt Pressure Transducers: A Complete Engineering Guide Catalog
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