Yokogawa EJA310 Style-S2

Description:

The Yokogawa EJA310 Style S2 is an absolute pressure transmitter from the EJA-A DPharp series, designed for accurate measurement of pressure in liquids, gases, and steam. It uses Yokogawa’s resonant silicon sensor technology to deliver stable, high-precision readings with long-term reliability. The “Style S2” designation refers to the mechanical housing/configuration version, commonly used for standard process mounting arrangements. The EJA310A series is a legacy model, later replaced by the EJA310E/EJX310A platforms.

Applications:

The Yokogawa EJA310 transmitter is used in process control systems for measuring absolute pressure in liquids, gases, and steam. The Yokogawa transmitter is commonly installed in pipelines, vessels, and process systems for pressure monitoring, vacuum measurement, and process control in industries such as oil & gas, manufacturing, and utilities.

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: EJA310 (Style S2)
• Product Type: Absolute Pressure Transmitter
• Technology: DPharp resonant silicon sensor
• Measurement Type: Absolute pressure
• Output Signal: 4–20 mA with digital communication (HART/BRAIN/Fieldbus options)
• Accuracy: ~±0.2% standard (±0.075% optional depending on capsule)
• Stability: ~±0.1% per year
• Power Supply: ~10.5–42 VDC loop-powered
• Maximum Overpressure: up to ~10,000 psi class (model dependent)
• Mounting: Pipe, wall, or bracket-mounted (Style S1/S2 variants)

Common Replacements:

• Yokogawa EJA310E (newer generation)
• Yokogawa EJX310A (higher performance upgrade)
• Yokogawa EJA510A (alternative absolute pressure model)