Key Benefits and Advantages
Superior High-Pressure Precision: The EJX440A delivers a standard reference accuracy of ± 0.04% of span. This high-tier precision is critical for high-pressure systems where even minor deviations can impact process safety and product consistency, ensuring your operations remain within peak performance parameters.
Market-Leading Long-Term Stability: One of the most significant advantages of the EJX440A is its stability rating of ± 0.1% per 15 years. By maintaining calibration integrity over a decade and a half, it drastically reduces maintenance frequency and minimizes the total cost of ownership (TCO) for large-scale facilities.
Certified for Safety-Critical Loops: Safety is non-negotiable in high-pressure measurement. The EJX440A is Exida and TUV SIL 2/3 certified, allowing for seamless integration into Safety Instrumented Systems (SIS). This certification guarantees that the device meets the most rigorous global standards for risk reduction.
Ultra-Fast Response Speed: In high-pressure scenarios, delayed data can lead to equipment damage. With a response time of just 90 ms, the EJX440A provides the real-time feedback necessary for control systems to respond instantly to dynamic process changes and pressure surges.
Simplified On-Site Configuration: The Local Parameter Setting (LPS) feature empowers field technicians to configure the transmitter without needing a handheld communicator. This intuitive interface speeds up the commissioning process and simplifies routine troubleshooting directly at the device.
Versatile Traditional-Mount Design: The traditional flange-mount architecture offers broad compatibility with existing manifolds and impulse piping. This makes the EJX440A an ideal choice for both high-pressure greenfield projects and the upgrading of legacy instrumentation in brownfield sites.
Technical Properties
Operation: Utilizes Yokogawa’s high-performance DPharp silicon resonant digital sensor.
Service: Optimized for High-Pressure Liquid, Gas, and Steam.
Reference Accuracy: ± 0.04% of Span.
Stability: ± 0.1% per 15 years.
Response Time: 90 ms.
Safety Certification: Exida and TUV SIL 2/3 Certified.
Configuration: Local Parameter Setting (LPS).
Communication: Supports standard digital protocols for seamless system integration.
Field of Application
The EJX440A is the preferred choice for high-range gauge pressure measurement where precision, safety, and traditional mounting are required.
Primary Industries and Uses:
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Oil and Gas Production: Monitoring high-pressure discharge lines, separators, and wellhead manifolds in demanding environments.
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Chemical and Petrochemical: Controlling high-pressure reactors and secondary process lines where stability is critical for quality control.
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Power Generation: Accurate monitoring of high-pressure steam headers and feedwater systems in utility plants.
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Refining: Managing high-pressure hydrogen or catalyst feed systems where SIL-rated reliability is a priority.
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Industrial Testing: Providing high-speed, accurate pressure data for specialized high-pressure validation and testing skids.




