The Yokogawa EJA440E high-pressure pressure transmitter (traditional installation) is the next traditional installation high-pressure intelligent pressure transmitter in the Chongqing Chuan Instrument Yokogawa EJA transmitter-E series, and is an upgraded model of the Yokogawa EJA440A high-pressure transmitter. The Yokogawa EJA440E high-pressure transmitter also uses the most advanced single crystal silicon resonant sensing technology, making it very suitable for pressure measurement of liquids, gases, or steam. The Yokogawa EJA440E high-pressure pressure transmitter (traditional installation) converts the measured differential pressure into a 4-20mA DC current signal output, featuring fast response, remote setting, and self-diagnosis functions. The Yokogawa EJA-E series products provide communication protocols such as BRAIN, HART/HART (1~5VDC) low power type, FF fieldbus, and PROFIBUS PA, with standard configuration certified by SIL 2 safety certification.  

key features of the Yokogawa EJA440E high-pressure gauge transmitter that make it a standout in industrial applications:

High Accuracy: ±0.055% of span, ensuring precise pressure measurements

Long-Term Stability: ±0.1% of URL over 10 years, reducing recalibration needs

Fast Response Time: 90 milliseconds for quick process feedback

Digital Sensor: DPharp resonant silicon sensor offers superior performance over analog types

SIL 2/3 Certified: Certified by Exida and TÜV for use in safety instrumented systems

Local Parameter Setting (LPS): Configure the device without a handheld communicator

Multiple Protocols: Supports HART 5/7, FOUNDATION Fieldbus, PROFIBUS PA, and BRAIN

Signal Characterization: Allows custom output curves for non-linear applications

Wide Pressure Range: Up to 50 MPa (7200 psi), suitable for high-pressure systems

Robust Construction: Hastelloy C-276 diaphragm and stainless steel body for corrosion resistance

Integral Digital Indicator: Optional display with or without range-setting switch

1. Parameters and specifications of the Yokogawa EJA440E high-pressure pressure transmitter:  
 

2. Functions and features of the Yokogawa EJA440E high-pressure pressure transmitter:  

Here’s a simplified version that keeps the key points clear and crisp:

Smart Sensor Monitoring: The DPharp sensor always sends out signals—even when pressure is steady—so if it fails, the transmitter knows right away.

High Accuracy with Real-Time Compensation: It measures pressure and temperature simultaneously and adjusts readings instantly to stay accurate, even with environmental changes.

Combined Measurement: One transmitter can measure both differential and static pressure, cutting equipment costs by up to 20%.

Flexible Output Tuning: With 10-point signal curve adjustment, it fits non-linear setups like tank levels or flow measurement.

Advanced Diagnostics: Features 40 health checks—including Yokogawa's patented “Back-Check” reverse calculation—to detect internal issues early. Plus, it uses an active sensor that’s always “talking,” so silence means a problem.

Built-In Overpressure Protection: Both sensor and internal parts are designed to resist accidental pressure spikes, guarding against damage.

Certified Safety (SIL 2/3): Designed per IEC standards, it meets strict functional safety requirements for critical systems—with or without redundancy.

Globally Certified: Proven performance and safety verified by TÜV Rheinland and EXIDA.

3. Selection specifications for the Yokogawa EJA440E high-pressure pressure transmitter:

Friendly reminder:The price of the new Yokogawa EJA440E high-pressure pressure transmitter (traditional installation) mainly depends on the specific quotation after you select the model specifications. If you need online product selection and model quotation, please feel free to call for detailed inquiries.  

Frequently Asked Questions – Yokogawa EJA440E

1. What type of pressure does the EJA440E measure? 

It measures gauge pressure in high-pressure applications—ideal for liquids, gases, or steam.

2. What’s the accuracy of the EJA440E? 

It offers ±0.055% of span accuracy, making it one of the most precise in its class.

3. What is DPharp and why is it important? 

DPharp is Yokogawa’s digital resonant silicon sensor. It continuously outputs signals, enabling real-time diagnostics and higher reliability compared to analog sensors.

4. Can it handle overpressure events? 

Yes. It has built-in mechanical and sensor-level overpressure protection, safeguarding it from pressure surges or valve misoperations.

5. Is it suitable for safety systems? 

Absolutely. It’s SIL 2/3 certified by TÜV and Exida, compliant with IEC 61508 and 61511 standards.

6. What communication protocols are supported? 

It supports HART 5/7, FOUNDATION Fieldbus, PROFIBUS PA, and BRAIN protocols.

7. Can I configure it without a communicator? 

Yes. The Local Parameter Setting (LPS) feature allows basic configuration directly on the device.

8. What’s the benefit of composite sensing? 

It can measure both differential and static pressure in one unit, reducing the need for multiple transmitters and saving on CAPEX.

9. How does signal characterization work? 

It allows 10-point curve customization of the 4–20 mA output, ideal for non-linear applications like tank levels or flow.

10. What diagnostics are available? 

It includes 40 self-diagnostic functions, including Yokogawa’s patented Back-Check reverse calculation for internal consistency.

Regular models: