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EJX120A High Performance Draft Range Differential Pressure Transmitter

The Yokogawa EJX120A is a premium traditional-mount differential pressure transmitter specifically engineered for ultra-low pressure measurement in furnace, boiler, and environmental applications. As the high-performance thoroughbred of the DPharp series, it features a true draft range sensor design that provides the superior sensitivity and precision required for optimizing combustion air-fuel ratios and flue gas monitoring. With an industry-leading accuracy of ± 0.09% and SIL 2/3 safety certification, the EJX120A is the ultimate solution for critical low-pressure loops that demand maximum stability and reliability.
Brand: Yokogawa
Availability: In Stock
Origin: Singapore

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Key Benefits and Advantages

Precision Optimized for Draft Range: Unlike standard transmitters that are adjusted for low spans, the EJX120A utilizes a specialized true draft range sensor. This design delivers a standard reference accuracy of ± 0.09%, allowing plant operators to maintain exceptionally tight control over furnace pressures and draft flows to maximize energy efficiency.

Superior Long-Term Stability: To ensure consistent performance in demanding exhaust and combustion environments, the EJX120A offers a stability rating of ± 0.15% per 1 year. This minimizes the drift commonly associated with low-pressure sensing and reduces the need for frequent manual zero-point calibrations.

Certified for Safety-Critical Control: Safety is paramount in combustion management. The EJX120A is Exida and TUV SIL 2/3 certified, making it a trusted component for Safety Instrumented Systems (SIS). This certification ensures that the transmitter meets the highest global standards for preventing hazardous conditions in industrial heaters and boilers.

Rapid Response for Dynamic Control: In fast-changing combustion processes, speed is essential for stability. With a response time of 150 ms, the EJX120A provides the real-time feedback necessary for control systems to adjust air flows instantly, protecting equipment and maintaining steady-state draft levels.

Simplified Field Configuration: The Local Parameter Setting (LPS) feature allows technicians to configure and adjust the transmitter directly at the installation site. This local interface eliminates the requirement for external handheld tools, streamlining the commissioning process and facilitating rapid on-site troubleshooting.

Rugged Traditional-Mount Design: The EJX120A features a robust traditional flange-mount architecture that ensures easy integration with existing manifold valves and piping. This proven design is built to withstand the vibration and temperature fluctuations often found in power plant and refinery environments.

Technical Properties

Operation: Premium true draft range digital sensing using silicon resonant sensor technology (DPharp).

Service: Specialized for Ultra-Low Differential Pressure measurement of Air and Gases.

Reference Accuracy: ± 0.09% of Span.

Stability: ± 0.15% per 1 year.

Response Time: 150 ms.

Safety Certification: Exida and TUV SIL 2 / SIL 3 Certified.

Mounting: Traditional-mount design compatible with standard industrial manifolds.

Configuration: Local Parameter Setting (LPS) for efficient field management.

Field of Application

The EJX120A is the premier choice for low-pressure differential measurement in applications where a specialized draft range design and high-tier performance are required.

Primary Industries and Uses:

  • Power Generation: Precise measurement of furnace draft and combustion air flow in utility-scale boilers.

  • Steel and Glass Manufacturing: Managing vacuum and pressure levels in high-temperature industrial kilns and melting furnaces.

  • Petrochemical Refining: Monitoring flue gas and process heater draft to ensure complete combustion and emission control.

  • Environmental Protection: Tracking low-pressure airflow in advanced scrubber systems and stack gas monitoring units.

  • Laboratory and Research: Providing high-precision data for specialized low-pressure aerodynamic testing and airflow validation.

Specification

Accuracy
Primary Variable:±0.09% of Span

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Available Certificates

We provide comprehensive documentation support strictly mapped to your model codes. From standard Q4 (Calibration Certificate), Q8 (Material Traceability), and P1 (Hydrostatic Testing) to specialized Chamber of Commerce (COI) authentication, we ensure every detail meets your project’s compliance and traceability requirements.

FAQ

Q: Which brands and models do you offer?

A: We specialize in industrial automation instruments such as pressure transmitters and flow meters from brands like Rosemount, Yokogawa, and Micro Motion. Additionally, we can help source other related products globally based on your specific requirements.

A: We offer global shipping, covering Southeast Asia, the Middle East, Europe, South America, North America, and many other regions. Specific logistics solutions can be customized based on customer requirements.

A: The lead time for product delivery varies depending on the product type, quantity, and shipping method. Our sales team will provide you with an estimated delivery time frame based on your specific requirements.

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