Yokogawa EJA510E/EJA530E Absolute Pressure Transmitters: Redefining Process Control Benchmarks with ±0.055% Accuracy

Monocrystalline Silicon Resonant Sensor, Supports HART/Fieldbus, Providing a Stable and Reliable Choice for High-Precision Measurement Scenarios like Petrochemicals and Power

In modern process industries pursuing ultimate process stability and efficient energy management, the accurate and stable measurement of absolute pressure is the key cornerstone for ensuring reaction efficiency, enhancing safety levels, and achieving precise control. Xi'an Xinyi Instrument Technology Co., Ltd. formally introduces and promotes Yokogawa Electric Corporation's star products—the EJA510E/EJA530E Series Absolute Pressure Transmitters. Leveraging their industry-leading monocrystalline silicon resonant sensor technology, excellent long-term stability, and comprehensive HART/Fieldbus digital communication capabilities, this series provides a trusted solution for high-precision absolute and gauge pressure measurement in industries such as petrochemicals, power generation, and pharmaceuticals. It excels particularly in demanding applications like vacuum distillation, reactor pressure, and compressor discharge.

1. Exceptional Monocrystalline Silicon Resonant Sensor Technology
   The core of Yokogawa's EJA Series Pressure Transmitters lies in their revolutionary monocrystalline silicon resonant sensor. Monocrystalline silicon is a near-perfect material, exhibiting no hysteresis under pressure and temperature changes. This technology minimizes the effects of overpressure, temperature variations, and static pressure to the greatest extent, thereby providing unparalleled long-term stability (typical ±0.1% of span upper limit/12 months). Among them, the EJA530E achieves a measurement accuracy as high as ±0.055%, and the EJA510E reaches ±0.2%, setting new industry benchmarks for precision.

2. Powerful Digital Communication and Intelligent Diagnostics
   The product not only provides standard 4~20mA analog output but also natively supports the HART digital communication protocol and can be offered in Foundation Fieldbus and PROFIBUS PA models. This enables users to achieve remote parameter setting, real-time monitoring, and powerful self-diagnostic functions, easily integrating into the digital network of smart factories. Furthermore, standard models are certified to meet SIL 2 Safety Integrity Level requirements, providing a reliable choice for Safety Instrumented Systems (SIS).

The exceptional performance of the Yokogawa EJA510E/EJA530E Absolute Pressure Transmitters is supported by a series of top-tier parameters, ensuring reliable performance across a wide range of industrial environments:

• Top-Tier Accuracy and Wide Range: Measurement accuracy ranges from ±0.055% to ±0.2%, with a measuring range extending from 10 kPa to 50 MPa, meeting diverse needs from low to high pressure.

• Wide Temperature Adaptation and Rugged Construction: Ambient temperature adaptation range is -40 to 85°C, with a medium temperature range of -40 to 120°C. Offers various process isolation diaphragm options including stainless steel, Hastelloy, and Monel, compatible with media like air, water, and oil. An IP65 protection rating ensures stability in outdoor and harsh environments.

• Flexible Installation and Intelligent Adjustment: Utilizes threaded connection for easy installation. Zero point can be adjusted arbitrarily within the capsule's upper and lower limits with a resolution of 0.01%, and the span can be adjusted using the setting switch on the meter head, offering extreme flexibility for field commissioning.

Thanks to its core advantages of high accuracy, high stability, and high intelligence, the EJA Series Absolute Pressure Transmitters play a central role in the following key industrial fields:

• Petrochemicals and Natural Gas: Distillation column absolute pressure control, catalytic reactor pressure, and precise pressure monitoring in natural gas liquefaction (LNG) plants.

• Power and Energy: Boiler drum pressure, steam turbine inlet/outlet pressure, and primary circuit pressure monitoring in nuclear power plants.

• Pharmaceuticals and Fine Chemicals: Bioreactor absolute pressure, vacuum dryer pressure, and precise pressure control in clean processes.

• Industrial Manufacturing and HVAC: Compressor discharge pressure control, industrial furnace pressure, and absolute pressure reference for precision test benches.

As a professional industrial automation instrument supplier, Xi'an Xinyi Instrument Technology Co., Ltd. solemnly commits that the supplied Yokogawa EJA Series Transmitters are high-quality products conforming to the original manufacturer's technical standards. We are dedicated to helping customers improve the safety, efficiency, and intelligence level of their production processes by introducing globally leading process control technologies, providing a solid and reliable measurement foundation for enterprises' digital transformation.

In today's process industries, where increasing emphasis is placed on data-driven operations and predictive maintenance, the long-term reliability and data credibility of measurement instruments themselves have become prerequisites for intelligence. The Yokogawa EJA510E/EJA530E Absolute Pressure Transmitters, with the inherent stability brought by their monocrystalline silicon sensor and powerful digital communication capabilities, perfectly align with this development trend.

Choosing the EJA Series means not only selecting a high-precision instrument for critical process points but also introducing a "data guardian" with performance that remains consistent for decades. With millimeter-level accuracy and enduring stability, it will provide indisputable data authority for your safe production, operational excellence, and intelligent upgrades, helping enterprises confidently manage complex processes and succeed in the future.