Setra 256 Pressure Transducer

  • Low Cost
  • High Accuracy
  • NEMA-4/IP65
  • Wide Operating Temperature Range
  • Compatible with a Wide Range of Gases or Liquids
  • Corrosive Resistant All Stainless Steel Wetted Parts
  • Choice of Voltage or Current Output
  • Operates on Low Cost Unregulated Power Supply

The Setra Model 256 pressure transmitter is an advanced device engineered with Setra’s patented variable capacitance sensing technology, ensuring precise and reliable measurements. Its construction includes a 17-4PH stainless steel diaphragm connected to a gold-plated ceramic electrode, forming a variable capacitor. This innovative design enables accurate detection of pressure changes, which are then converted into a linear DC signal using Setra’s integrated circuit.

The versatility of the Setra Model 256 makes it suitable for use with corrosive liquids or gases. Its cast aluminum housing features a dual-cavity design that isolates sensitive components and circuitry from the terminals. Internally, the device utilizes a “dry” capacitor structure filled with silicone or fluoro oil, eliminating the risk of measurement media contamination. With its NEMA4 compliance, the Setra Model 256 can operate continuously in all weather conditions.

Key Features:

  • Utilizes Setra’s patented variable capacitance sensing technology
  • 17-4PH stainless steel diaphragm and gold-plated ceramic electrode
  • Converts pressure changes into a linear DC signal
  • Versatile for use with corrosive liquids or gases
  • Cast aluminum housing with dual-cavity design
  • “Dry” capacitor structure prevents measurement media contamination
  • NEMA4-compliant for all-weather operation


  • Precise and reliable pressure measurements
  • Suitable for challenging environments and corrosive substances
  • Robust construction for long-term durability
  • Easy installation and wiring
  • Compact size for space-constrained applications


  • Chemical industry
  • Petroleum industry
  • Coal mining
  • All-weather environments requiring accurate pressure measurement
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