Capillary Differential Pressure Transmitter

The EJX118A is a premium instrument in the renowned DPharp EJX-A series, specifically engineered to isolate the sensing element from harsh process conditions using remote diaphragm seals. This robust configuration is essential for handling fluids that are corrosive, highly viscous, or prone to solidification. By utilizing this capillary differential pressure transmitter, operators can eliminate the maintenance headaches associated with wet legs and impulse piping, ensuring consistent performance and longevity even in extreme temperature and vacuum applications.

Key Features and Technical Specifications

Superior Accuracy: Delivers a reference accuracy of ±0.15% of span, ensuring precise control in challenging environments.
Rapid Response: Features a fast 200 ms response time for immediate reaction to process fluctuations.
Active Density Compensation: Automatically corrects for fill fluid density changes caused by ambient temperature shifts, a common issue in capillary systems.
Safety Certified: Standard compliance with IEC 61508 for SIL 2 (single) and SIL 3 (dual) safety applications.
Digital Intelligence: Equipped with the DPharp digital sensor for simultaneous differential and static pressure measurement and advanced diagnostics.

Industry Applications and Operational Benefits

The EJX118A is the ideal choice for demanding sectors such as Oil & Gas, Chemical Refining, and Pulp & Paper. It excels in applications involving high-temperature reaction vessels, vacuum distillation columns, and tanks containing slurries or polymers. The system's ability to maintain accuracy despite ambient temperature swings makes it a superior capillary differential pressure transmitter for outdoor installations. With its rugged construction and smart diagnostic capabilities-such as predicting impulse line clogging-the EJX118A significantly reduces operational risks and maintenance costs, driving overall plant efficiency.

Product Specifications

Parameter	Specification
Measurement Types
Primary Variable	Differential Pressure (DP)
Secondary Variable	Static Pressure (SP)
Reference Accuracy
Primary Variable	±0.2% of DP Span
Secondary Variable	±0.5% of SP Span
Response Time
Primary Variable	200 msec
Secondary Variable	500 msec
Rangeability
Primary Variable	M-Capsule: 40:1 H-Capsule: 20:1
Specification Conformance
EJX-A Series	±3σ

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