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Yokogawa EJX530A Gauge Pressure Transmitter
General Description:
The Yokogawa EJX530A is a high-performance in-line mount gauge and absolute pressure transmitter powered by Yokogawa's proprietary DPharp single-crystal silicon resonant sensor. Designed for rigorous industrial environments across oil and gas, chemical processing, and power generation, it delivers exceptional precision, fast response times, and long-term stability.
Technical Specifications
| Feature | Specification |
| Model Type | In-Line Mount Gauge / Absolute Pressure Transmitter |
| Sensor Technology | Single Crystal Silicon Resonant Sensor |
| Reference Accuracy | ±0.04% of span |
| Long-Term Stability | ±0.1% of Upper Range Limit (URL) per 10 years |
| Response Time | 90 ms |
| Output Signal | 4 to 20 mA DC with HART or BRAIN digital communication |
| Power Supply | 10.5 to 42 VDC |
| Enclosure & Material | IP66/IP67, Stainless Steel wetted parts |
| Certifications | Exida & TÜV SIL 2/3, Intrinsically Safe Certified |
Core Engineering Features
High Precision: Achieves ±0.04% span accuracy under dynamic process conditions.
Single Crystal Silicon Resonant Sensor: Ensures superior thermal immunity and a rapid 90 ms response time.
Dual Functionality: Capable of measuring both gauge and absolute pressure configurations.
Robust Compliance: Built with corrosion-resistant stainless steel wetted parts and certified for hazardous areas (SIL 2/3 and intrinsic safety).
Advanced Diagnostics: Continuous self-monitoring detects loop faults, sensor health, and process anomalies remotely via HART or BRAIN interfaces.
Primary Industrial Applications
Oil & Gas: High-pressure pipelines, wellhead monitoring, and separators.
Chemical & Petrochemical: Corrosive fluid and gas process loop control.
Power Generation: Superheated steam and high-pressure boiler monitoring.
Water & Wastewater: Filtration pressure tracking and pump station optimization.
Pharmaceutical & Food: Hygienic level and pressure regulation.
Standard Installation Workflow
Model & Nameplate Verification: Check suffix codes and ratings against process requirements.
Location Selection: Mount away from severe mechanical vibration, extreme thermal spikes, and electromagnetic interference (EMI).
Mechanical Mounting: Secure via approved in-line process connections and rated gaskets to prevent leakage.
Electrical Wiring: Terminate shielded loop cables with correct polarity, ensuring proper earth grounding for intrinsic safety loops.
Commissioning: Power the loop (10.5–42 VDC), perform a zero-point trim, and configure scale parameters using a HART communicator or BRAIN terminal.
Frequently Asked Questions (FAQ)
Q1: What is the difference between Yokogawa EJX530A and EJA530E?
A: The EJX530A is a high-performance model featuring advanced DPharp digital sensor technology with a reference accuracy of ±0.04% of span, whereas the EJA530E serves as the standard gauge pressure variant designed for general baseline applications.
Q2: What is the reference accuracy of the EJX530A pressure transmitter?
A: ±0.04% of span.
Q3: What power supply does the EJX530A require?
A: 10.5 to 42 VDC.
Related Model Alternatives
EJA530E: Standard gauge pressure variant with similar baseline specifications.
EJX430A: Flange-mounted high-performance alternative for specialized process connections.
EJA510E: Dedicated absolute pressure transmitter variant for high static pressure lines.
Yokogawa EJA220A Flange Installation Pressure Transmitter
Yokogawa EJA510A Absolute Pressure Transmitter
