YOKOGAWA EJA110E Differential Pressure Transmitter

Product Introduction

The YOKOGAWA EJA110E Differential Pressure Transmitter is part of Yokogawa’s OpreX Field Instruments family under the OpreX Measurement category, representing the latest evolution of the DPharp (Digital Pressure Harp) family of pressure transmitters. Launched in 2012, it combines the ruggedness of the EJA-A series with the high performance of the EJX-A series, delivering exceptional accuracy and reliability for industrial measurement applications. Equipped with Yokogawa’s proprietary DPharp digital sensor—superior to traditional analog sensors in performance and stability—it ensures consistent, precise measurements even in demanding environments. Certified by Exida and TUV for SIL 2 / SIL 3, this transmitter is designed to meet the stringent requirements of industrial automation systems, offering advanced features such as fast response times, long-term stability, and robust resistance to overpressure and vibration.

Features

High Accuracy: Boasts a standard accuracy of 0.055%, with an optional 0.04% accuracy for applications requiring ultra-precise measurements.

Exceptional Stability: Maintains 0.1% stability per 10 years (for M, H, and V capsules) and 0.2% per year (for F capsules), ensuring long-term reliability with minimal drift.

Fast Response Time: Delivers a 90 ms response time (for wetted parts material code S and L, excluding F span code), enabling quick detection of pressure changes in dynamic processes.

SIL Certification: Exida and TUV certified for SIL 2 / SIL 3, making it suitable for safety-critical applications.

DPharp Digital Sensor: Utilizes Yokogawa’s advanced DPharp digital sensor, which outperforms analog sensors with twice the performance and stability, leveraging cutting-edge IC chip design for consistent, reliable measurements.

Overpressure Resistance: Withstands overpressure up to maximum working pressure (MWP) of 2,300 psi (3,600 psi optional), with minimal impact on accuracy (±0.03% of URL for overpressure effects).

Local Parameter Setting (LPS): Allows on-site configuration of parameters, simplifying setup and calibration without the need for external tools.

Vibration Immunity: Resistant to vibration (10-60 Hz, 0.21 mm displacement; 60-2000 Hz, 3 g for amplifier housing codes 1 and 3), ensuring stable performance in high-vibration environments.

Wide Pressure Range: Covers a pressure range of 0-100 MPa, adapting to diverse industrial measurement needs.

Durable Construction: Made from SS304 stainless steel, enhancing corrosion resistance and suitability for harsh industrial conditions.

Key Specifications

Brand: Yokogawa

Model Number: EJA110E

Output Signal: 4-20 mA

Material: SS304

Power Supply Effects: ±0.005% per Volt (21.6-32 V DC, 350Ω)

Mounting Position Effects: Rotation in diaphragm plane has no effect; tilting up to 90° causes minimal zero shift (correctable via zero adjustment)

Maximum Working Pressure (MWP): 2,300 psi (3,600 psi optional)

Certifications: Exida, TUV (SIL 2 / SIL 3)

Product Line: Part of Yokogawa’s OpreX Field Instruments family (OpreX Measurement category)