Yokogawa Dpharp Transmitter

The EJX310A is a flagship model in the DPharp EJX-A series, designed to measure absolute pressure with exceptional precision in applications where reference to atmospheric pressure is not suitable. Utilizing Yokogawa's proprietary silicon resonant sensor technology, this ejx310a absolute pressure transducer eliminates the instability and hysteresis often found in analog sensors. It provides reliable data that allows operators to reduce process variability, optimize throughput, and ensure the safety of critical operations, all while minimizing long-term maintenance costs.

Key Features and Technical Specifications

Exceptional Accuracy: Delivers a standard reference accuracy of ±0.075% (L-Capsule) or ±0.04% (M, A, B Capsules), ensuring precise control.
Long-Term Stability: Boasts an industry-leading stability of ±0.2% of URL over 15 years, significantly extending calibration intervals.
Rapid Response: Features a fast 90-millisecond response time for immediate detection of process changes.
Built-in Safety: Certified to IEC 61508 for SIL 2 (single) and SIL 3 (dual) safety applications as standard.
Active Diagnostics: The DPharp sensor actively monitors its own health, providing advanced diagnostics like impulse line blocking detection.

Industry Applications and Smart Connectivity

The EJX310A is indispensable in industries such as Oil & Gas, Chemical Processing, and Power Generation, particularly for vacuum distillation columns, strippers, and evaporators. Unlike gauge pressure devices, it is unaffected by changes in atmospheric pressure, making it ideal for weather-sensitive outdoor installations. The device supports robust communication protocols including HART, FOUNDATION Fieldbus, and PROFIBUS PA. By choosing the ejx310a absolute pressure transducer, facilities benefit from a "Universal Mounting" design and standard IEC process connections, ensuring seamless integration and a future-proof investment for their automation infrastructure.

Product Specifications

Category	Description / Value
Measurement Types
Primary Variable	Absolute Pressure
Reference Accuracy
Primary Variable	±0.075% of Span (L-Capsule) ±0.04% of Span (M, A, and B Capsule)
Stability (All Normal Operating Conditions)
Primary Variable	±0.2% of URL per 15 years
Response Time
Primary Variable	90ms
Rangeability
Primary Variable	L-Capsule: 20:1 M-Capsule: 100:1 A and B Capsule: 200:1
Burst Pressure (Absolute)
All Capsules	10,000 psi (69 MPa)
Specification Conformance
EJX-A Series	±3σ

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