Premium In-Line Absolute Pressure Measurement for Critical Processes

The Yokogawa EJX510A is an in-line mount absolute pressure transmitter from the EJX-A series, Yokogawa’s premium performance line of DPharp pressure transmitters.

Unlike gauge pressure measurement, absolute pressure measurement uses a fixed vacuum reference, eliminating the influence of atmospheric pressure changes. This makes the EJX510A suitable for applications where pressure reference stability is essential.

The in-line mounting design allows direct process connection, helping simplify installation while maintaining high measurement performance.

Why Choose EJX510A?

High Accuracy With Advanced DPharp Technology

The EJX510A uses Yokogawa’s proven DPharp digital sensor technology, designed to provide stable and accurate measurement performance.

Compared with conventional analog sensor technologies, DPharp technology improves:

• Measurement accuracy
• Repeatability
• Long-term stability
• Diagnostic capability

The digital sensor architecture provides reliable process information and helps operators achieve better control of industrial processes.

Designed for Demanding Absolute Pressure Applications

The EJX510A provides:

• ±0.04% reference accuracy
• 90 ms fast response time
• ±0.2% URL per 15 years stability
• High overpressure capability

These specifications make it suitable for applications where measurement performance directly affects production efficiency and process safety.

Simplified Installation With In-Line Mount Design

The in-line structure of the EJX510A provides advantages for compact and efficient installation.

Benefits include:

• Direct process connection
• Reduced installation complexity
• Less piping requirement
• Easier replacement in existing systems

This design is especially useful for applications where installation space is limited or where traditional mounting arrangements are inconvenient.

Advanced Diagnostics Reduce Maintenance

The EJX510A provides intelligent diagnostic functions to help maintenance teams identify abnormal conditions faster.

Features include:

• Real-time self-check system
• Active sensor monitoring
• Error code indication
• Extended calibration intervals
• Predictive maintenance support

Yokogawa’s patented self-check technology continuously verifies internal calculations, improving transmitter reliability and reducing unexpected failures.

Improve Plant Availability and Reduce TCO

For industrial plants, reducing downtime and maintenance cost is a key requirement.

The EJX510A helps reduce total ownership cost through:

• Long-term measurement stability
• Fewer calibration requirements
• Reliable sensor technology
• Advanced diagnostics
• Easy troubleshooting

These advantages help maintain stable plant operation over the transmitter’s service life.

Flexible Communication Options

The EJX510A supports multiple communication protocols for integration into different industrial automation systems.

Available options include:

• HART
• BRAIN
• FOUNDATION Fieldbus
• PROFIBUS PA

The Local Parameter Setting (LPS) function allows selected configuration adjustments without requiring additional handheld tools.

Key Features

• Premium 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
• High overpressure capability
• Advanced self-diagnostics
• Active Sensor Technology
• Patented self-check system
• Local Parameter Setting (LPS)
• HART / BRAIN / FOUNDATION Fieldbus / PROFIBUS PA communication options
• SIL 2/3 safety certification options
• Rugged industrial construction

Typical Applications

The EJX510A is commonly used for:

• Absolute pressure measurement
• Gas processing systems
• Vacuum applications
• Chemical processing
• Oil and gas facilities
• Refining systems
• Power generation
• Storage and process equipment
• Industrial automation systems

Frequently Asked Questions

What is the Yokogawa EJX510A used for?

The EJX510A is an absolute pressure transmitter designed to measure process pressure against a fixed vacuum reference. It is suitable for applications where atmospheric pressure changes may affect measurement accuracy.

What is the difference between EJX510A and EJA510E?

Both are in-line mount absolute pressure transmitters, but they belong to different performance series.

EJA510E:

• EJA-E series
• Reliable industrial performance
• ±0.055% accuracy
• ±0.2% URL per 10 years stability

EJX510A:

• Premium EJX-A series
• Higher accuracy
• Longer stability period
• Advanced diagnostics

How accurate is the EJX510A?

The EJX510A provides ±0.04% of span reference accuracy.

How stable is the EJX510A?

The EJX510A provides ±0.2% of URL per 15 years stability, helping reduce calibration frequency and maintenance requirements.

Why choose an in-line mount pressure transmitter?

An in-line mount design allows direct connection to the process line, reducing installation complexity and saving space compared with traditional mounting methods.

Does EJX510A support HART communication?

Yes. The EJX510A supports HART and other industrial communication protocols depending on configuration.

Is EJX510A suitable for safety applications?

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