High Performance Absolute Pressure Measurement for Critical Applications

The Yokogawa EJX610A is a high-performance in-line mount absolute pressure transmitter from the premium EJX-A series.

It is designed for applications where measurement accuracy, long-term stability, and process reliability are essential. The transmitter uses a fixed vacuum reference to measure absolute pressure, avoiding errors caused by atmospheric pressure fluctuations.

The in-line mounting design allows direct process connection while maintaining the high performance expected from Yokogawa’s advanced DPharp pressure transmitter technology.

Why Choose EJX610A?

Premium Performance With DPharp Digital Sensor Technology

The EJX610A uses Yokogawa’s proven DPharp digital sensor technology, which provides improved performance compared with conventional analog sensing technologies.

Advantages include:

• Higher measurement accuracy
• Better repeatability
• Improved long-term stability
• Advanced diagnostic capability
• More reliable process information

The active sensor continuously generates measurement information, allowing the transmitter to monitor its own condition and support predictive maintenance strategies.

Excellent Accuracy and Long-Term Stability

For critical processes, small measurement deviations can affect efficiency, quality, and operational safety.

The EJX610A provides:

• ±0.04% reference accuracy
• ±0.2% URL per 15 years stability
• 90 ms response time
• Up to 200:1 rangeability depending on capsule selection

These specifications help maintain accurate pressure measurement over extended operating periods.

High Performance In-Line Design

The in-line mounting structure provides a compact and efficient installation solution.

Benefits include:

• Direct connection to process piping
• Reduced installation complexity
• Less requirement for additional impulse piping
• Easier replacement and maintenance

This design is especially suitable for applications where installation space and measurement reliability are important.

Advanced Diagnostics Reduce Unexpected Downtime

The EJX610A includes intelligent diagnostic functions designed to improve plant reliability.

Features include:

• Active Sensor Technology
• Patented Back-check Technology
• Self-diagnostic monitoring
• Error code indication
• Predictive maintenance support

These functions help maintenance teams identify potential issues earlier and reduce unexpected process interruptions.

Designed for Demanding Industrial Environments

The EJX610A combines rugged mechanical construction with advanced digital technology.

It is suitable for applications requiring:

• High measurement reliability
• Long service intervals
• High-pressure process conditions
• Stable operation under demanding environments

The transmitter is available with safety certifications and industrial communication options for integration into modern automation systems.

Flexible Communication Options

The EJX610A supports common industrial communication protocols:

• HART
• BRAIN
• FOUNDATION Fieldbus
• PROFIBUS PA

The Local Parameter Setting (LPS) function allows convenient configuration adjustments without additional field tools.

Key Features

• High performance EJX-A series absolute pressure transmitter
• In-line mount design
• DPharp digital sensor technology
• Absolute pressure measurement
• ±0.04% reference accuracy
• ±0.2% URL per 15 years stability
• 90 ms response time
• Up to 200:1 rangeability
• High overpressure capability
• Advanced self-diagnostics
• Active Sensor Technology
• Back-check Technology
• Local Parameter Setting (LPS)
• HART / BRAIN / FOUNDATION Fieldbus / PROFIBUS PA communication options
• SIL 2/3 safety certification options
• Rugged industrial construction

Typical Applications

The EJX610A is commonly used for:

• High-performance absolute pressure measurement
• Oil and gas processing
• Refining systems
• Chemical plants
• Power generation
• Gas processing equipment
• Vacuum and pressure systems
• Industrial process control
• Critical automation applications

Frequently Asked Questions

What is the Yokogawa EJX610A used for?

The EJX610A is an absolute pressure transmitter designed to measure process pressure using a vacuum reference. It is used in applications requiring stable and accurate pressure measurement.

What is the difference between EJX510A and EJX610A?

Both are EJX-A series in-line absolute pressure transmitters.

EJX510A:

• Premium in-line absolute pressure transmitter
• General high-performance absolute pressure measurement

EJX610A:

• High-performance in-line absolute pressure transmitter
• Designed for more demanding applications with higher performance requirements and pressure capability

How accurate is the EJX610A?

The EJX610A provides ±0.04% reference accuracy.

How stable is the EJX610A?

The EJX610A provides ±0.2% of URL per 15 years stability, helping reduce calibration frequency and maintenance effort.

Why use an absolute pressure transmitter?

Absolute pressure measurement uses a vacuum reference instead of atmospheric pressure, making it suitable for applications where atmospheric changes could influence measurement accuracy.

Does EJX610A support HART communication?

Yes. The EJX610A supports HART and other industrial communication protocols depending on configuration.

Is EJX610A suitable for safety applications?

Yes. The EJX-A series supports SIL 2/3 safety certification options for suitable industrial safety applications.