Compact In-Line Design for Reliable Absolute Pressure Measurement

The Yokogawa EJA510E is an in-line mount absolute pressure transmitter from the EJA-E series.

Compared with traditional remote installation designs, the in-line structure allows direct connection to process piping, helping simplify installation while maintaining Yokogawa’s proven measurement reliability.

The EJA510E is designed for applications where absolute pressure measurement is required, using a vacuum reference to eliminate the influence of atmospheric pressure changes.

Why Choose EJA510E?

Simplified Installation With In-Line Mount Design

The EJA510E features an integrated in-line mounting structure that helps reduce installation complexity.

Benefits include:

• Direct process connection
• Reduced installation space requirements
• Fewer external connections
• Easier replacement in existing systems

This makes it suitable for applications where compact installation and reliable measurement are important.

Proven DPharp Digital Sensor Technology

The EJA510E uses Yokogawa’s DPharp digital sensor technology.

Unlike conventional analog sensor designs, DPharp technology provides direct digital sensor information, improving:

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

The active sensor design continuously monitors sensor output, helping identify abnormal conditions before they affect process operation.

Reliable Performance for Industrial Processes

The EJA510E provides stable absolute pressure measurement with:

• ±0.055% reference accuracy
• ±0.04% accuracy option
• 90 ms response time
• ±0.2% URL per 10 years stability

These specifications make it suitable for applications requiring consistent pressure measurement over long operating periods.

Reduce Maintenance Through Intelligent Diagnostics

Unexpected transmitter problems can lead to process interruptions.

The EJA510E includes intelligent diagnostic functions designed to improve maintenance efficiency:

• Self-diagnostic monitoring
• Local error indication
• Active Sensor Technology
• Patented Back-check Technology
• Easier troubleshooting

These functions help maintenance teams identify problems faster and reduce unnecessary downtime.

Flexible Communication Options

The EJA510E supports multiple communication protocols for integration with different control systems:

• HART 5 / HART 7
• 1–5 V DC HART 7 Low Power
• FOUNDATION Fieldbus
• PROFIBUS PA
• BRAIN

The Local Parameter Setting (LPS) function allows convenient configuration adjustments directly from the transmitter.

Key Features

• In-line mount absolute pressure transmitter
• Yokogawa EJA-E series
• DPharp digital sensor technology
• Absolute pressure measurement
• Suitable for liquid, gas, and steam applications
• ±0.055% reference accuracy
• ±0.04% accuracy option
• 90 ms response time
• ±0.2% URL per 10 years stability
• Maximum over pressure up to 8,700 psia
• Advanced self-diagnostics
• Local Parameter Setting (LPS)
• HART / FOUNDATION Fieldbus / PROFIBUS PA / BRAIN communication
• SIL 2/3 certification options
• Rugged industrial construction

Typical Applications

The EJA510E is commonly used for:

• Absolute pressure measurement
• Gas pressure monitoring
• Liquid process measurement
• Vacuum-related applications
• Chemical processing
• Oil and gas systems
• Power generation
• Storage and process equipment
• Industrial automation systems

Frequently Asked Questions

What is the Yokogawa EJA510E used for?

The EJA510E is an absolute pressure transmitter used to measure process pressure against a vacuum reference. It is suitable for applications where atmospheric pressure changes may affect measurement accuracy.

What is the difference between EJA510E and EJA310E?

The main difference is the mounting design:

• EJA510E: In-line mount absolute pressure transmitter designed for direct process connection.
• EJA310E: Traditional-mount absolute pressure transmitter designed for conventional installation.

Both use Yokogawa DPharp technology but target different installation requirements.

What is the accuracy of EJA510E?

The EJA510E provides:

• ±0.055% reference accuracy
• ±0.04% accuracy with /HAC option

depending on configuration.

Can EJA510E measure gas pressure?

Yes. The EJA510E is suitable for absolute pressure measurement of gases, liquids, and other industrial process media.

Why choose an in-line mount pressure transmitter?

An in-line mount transmitter can simplify installation by allowing direct connection to the process line, reducing installation complexity and space requirements.

Does EJA510E support HART communication?

Yes. The EJA510E supports HART and other industrial communication protocols depending on configuration.

Is EJA510E suitable for safety applications?

Yes. The EJA510E supports SIL 2/3 safety certification options for suitable applications.