Roto-Tran IV

Pressure Transducer

The enclosed Roto-Tran IV is a pressure transducer that provides a 4-20 mA signal over its labeled pressure range. The Roto-Tran IV is available in six different pressure ranges from 0-300 PSI. This loop powered, barometric and temperature compensated device uses a high-accuracy piezo-electric sensing element.This transducer is constructed from 316L stainless steel and carries a NEMA 4X rating. Tank and pipe mounting can be accomplished by its integral, threaded process connection.


A NEMA 4X non-metallic enclosure houses the Roto-Tran IV pressure transducer, block and bleed valve and pressure gauge.A terminal strip for field wiring is included. The pressure line connection to the block and bleed assembly is through a 1/4” female NPT bulkhead fitting located on the bottom of the enclosure.


  • Service: Compatible gasses and liquids
  • Wetted Materials: Type 316L Stainless Steel
  • Accuracy: 1% full scale (includes linearity, hysteresis, and repeatability)
  • Temperature Limit: 0 to 200°F (-18 to 93°C)
  • Compensated Temp Range: 0 to 175°F (-18 to 79°C)
  • Thermal Effect: +/-0.04% FS/°F (includes zero and span)
  • Power Requirements: 13 to 30 VDC
  • Output Signal: 4 to 20 mA
  • Response Time: 50 msec
  • Loop Resistance: 0-1300 ohms maximum
  • Current Consumption: 39 mA (maximum)
  • Electrical Connections: 3 feet of prewired cable
  • Process Connections: 1/4” male NPT
  • Enclosure Rating: NEMA 4X (IP66)
  • Mounting Orientation: Mount in any position


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