Yokogawa EJA120E Draft Range Differential Pressure Transmitter Stainless Steel Enclosure

Details:

The Yokogawa EJA120E is a high-performance micro differential pressure transmitter. It utilizes single-crystal silicon resonant sensor technology and is suitable for measuring the flow, liquid level, density, and pressure of liquids, gases, or steam. The EJA120E converts the measured differential pressure into a 4- 20mA DC signal output, featuring rapid response, remote setting, and self-diagnosis functions. It supports multiple communication protocols such as HART 5/7, HART (1~5V DC) low-power type, FF fieldbus, PROFIBUS PA, and BRAIN

Key Features

Superior Accuracy: Achieves ±0.2% standard accuracy, with an optional upgrade to ±0.09% for enhanced precision.

Exceptional Long-Term Stability: Maintains ±0.3% per year, ensuring consistent and reliable performance over extended periods.

Rapid Response Time: Delivers 150ms response time, providing fast and accurate readings for real-time monitoring.

Certified for Safety Applications: Holds SIL 2 / SIL 3 certification from Exida and TUV, making it ideal for safety-critical processes.

User-Friendly Configuration: Features Local Parameter Setting (LPS) for easy setup and adjustments without external tools.

Optimized for Low-Pressure Applications: Specifically designed for draft range measurements, ensuring precise control in sensitive environments.

Flexible Communication Options: Supports HART 5/7, FOUNDATION Fieldbus, PROFIBUS PA, and BRAIN protocols for seamless integration.

Specifications:

Common Models:

EJA120E-JES4J-917EA

EJA120E-DES4J-917DA

EJA120E-JES4J-912DA/NF2

EJA120E-DES5J-912EA

EJA120E-DES4J-812NN

EJA120E-DES5J-919DN/NF2

EJA120E-DES5J-712EC

General Questions

Q1: What is the Yokogawa EJA120E Draft Range Differential Pressure Transmitter used for?

A: The EJA120E is designed for precise low-range differential pressure measurement in industrial applications, including oil & gas, chemical processing, power generation, and water treatment. It is particularly suited for applications requiring high accuracy at very low pressure levels.

Q2: What makes the EJA120E different from other differential pressure transmitters?

A: The EJA120E utilizes Yokogawa's advanced DPharp digital sensor technology, ensuring higher accuracy, long-term stability, and dynamic compensation for temperature and static pressure effects, especially in low-pressure applications.

Technical Specifications

Q1: What is the accuracy of the EJA120E?

A: The standard accuracy is ±0.055%, with an optional upgrade to ±0.04% for enhanced performance.

Q2: What is the response time of the transmitter?

A: The response time is 90 milliseconds, allowing for fast and reliable measurements.

Q3: What is the maximum working pressure?

A: The standard maximum working pressure is 2,300 psi, with an optional upgrade to 3,600 psi for high-pressure environments.

Installation & Maintenance

Q1: How is the EJA120E installed?

A: It follows a traditional mount configuration, making installation straightforward with standard industrial mounting brackets.

Q2: Does the EJA120E require frequent calibration?

A: No, due to its exceptionally long-term stability of ±0.1% per 10 years, it requires minimal recalibration, reducing maintenance efforts.

Safety & Certifications

Q1: Is the EJA120E certified for safety applications?

A: Yes, the EJA120E is SIL 2 / SIL 3 certified by Exida and TUV, making it suitable for safety-critical environments.

Q2: Does the transmitter support Local Parameter Setting (LPS)?

A: Yes, it features Local Parameter Setting (LPS), enabling easy configuration and adjustments without requiring external tools.