Key Benefits and Advantages
Reliable Absolute Pressure Measurement: The EJA310E provides a standard reference accuracy of ± 0.1% of span, ensuring precise monitoring for processes that are sensitive to atmospheric pressure changes. By measuring pressure relative to a vacuum, it provides a stable baseline for critical calculations in distillation and vacuum systems.
Proven Long-Term Stability: Built to ensure consistent performance over time, the EJA310E offers a stability rating of ± 0.2% per 10 years. This reliability minimizes drift and extends calibration intervals, significantly reducing the total cost of ownership and maintenance labor throughout the transmitter’s lifecycle.
High Overpressure Protection: Safety and durability are prioritized with a Maximum Over Pressure rating of 3,600 psia. This rugged construction protects the internal sensing element from sudden pressure surges, ensuring the device remains operational and accurate even after exposure to high-stress conditions.
SIL 2/3 Certified for Process Safety: Compliance with global safety standards is a standard feature. The EJA310E is Exida and TUV SIL 2/3 certified, making it suitable for integration into Safety Instrumented Systems (SIS) where reliable risk reduction is mandatory for plant protection.
Rapid Signal Response: With a quick 90 ms response time, the EJA310E enables control systems to receive and react to pressure data almost instantaneously. This agility is essential for maintaining process stability in fast-moving fluid systems and protecting downstream equipment.
Flexible Communication and Low Power Options: The EJA310E is available with a wide range of protocols, including HART 5/7, FOUNDATION Fieldbus, PROFIBUS PA, and BRAIN. For remote or solar-powered installations, a 1 to 5 VDC HART 7 (Low Power) option is available to maximize energy efficiency.
User-Friendly Local Configuration: The Local Parameter Setting (LPS) feature allows technicians to configure and troubleshoot the transmitter directly in the field. This intuitive local interface reduces the need for external handheld communicators, streamlining commissioning and on-site service.
Technical Properties
Operation: Absolute pressure digital sensing using silicon resonant sensor technology (DPharp).
Service: Optimized for Absolute Pressure measurement of Liquid, Gas, and Steam.
Reference Accuracy: ± 0.1% of Span.
Stability: ± 0.2% per 10 years.
Response Time: 90 ms.
Maximum Over Pressure: 3,600 psia.
Safety Rating: Exida and TUV SIL 2 / SIL 3 Certified.
Communication Protocols: HART 5/7, 1 to 5 VDC HART 7, FOUNDATION Fieldbus, PROFIBUS PA, or BRAIN.
Field of Application
The EJA310E is the preferred choice for absolute pressure measurement where traditional mounting, rugged overpressure protection, and safety certifications are required.
Primary Industries and Uses:
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Refining and Petrochemical: Monitoring vacuum distillation columns and reactors where absolute pressure control is vital for product purity.
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Power Generation: Measuring condenser vacuum and turbine exhaust pressures to optimize efficiency.
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Chemical Manufacturing: Stable pressure monitoring in chemical processing tanks and low-pressure gas systems.
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Food and Beverage: Controlling absolute pressure in vacuum packaging and sterile processing lines.
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Remote Monitoring: Using the Low Power 1 to 5 VDC option for monitoring pressures at remote pipeline headers or unmanned facilities.
