Notice: This product was discontinued on Dec 29, 2016. See this replacement product:

The EJA-A series is Yokogawa's most successful pressure transmitter line. First released in 1991, it continues to offer high performance and high reliability for any application. With an installed base of over 4-1/2 million EJA-A transmitters worldwide, it has a proven track record that makes it a true industry workhorse.

The EJA440A is the Traditional-mount High Gauge Pressure Transmitters in the series.

EJA440A features include:

  • 0.12% Accuracy
  • 0.1% Stability per 5 years
  • 8,500 psi MWP

Explore how the EJA440A can help you Boost your bottom line.


At it's heart, Yokogawa's High-static Pressure Transmitter with DPharp digital sensor offers the performance and device intelligence needed to get greater insight into your process.

Plants run better (1)

Digital Performance




Yokogawa's DPharp active sensor and rugged construction allow users to run their plants safer and with less downtime.

Plant run longer (1)

Rugged Construction


Proven Technology




Inherently Safe Design

Safe (1)


Yokogawa's DPharp pressure transmitters offer long-term stability and diagnostics to make your maintenance routine easier.

Routine maintenance easier (1)

Quicker Maintenance


No Learning Curve


EJA440A Overview

Measurement Types
Primary Variable Absolute Pressure
Reference Accuracy
Primary Variable ±0.12% of Span
Stability (All Normal Operating Conditions)
Primary Variable ±0.1% of URL per 5 years
Burst Pressure (Absolute)
EJA430A 10,000 psi


EJA440A Capsules



Graphics not to scale


Application Note

Hydrogen is the simplest and smallest atomic element. Water, acids, bases, and the immense family of organic compounds all contain hydrogen. Even though hydrogen is not corrosive, it can cause problems for pressure transmitters through Hydrogen Permeation.


Differential pressure transmitters, which serve as the core of field instrumentation, are widely used to measure the flow rate, pressure and density of liquids, gases and steam, as well as the level of liquid in a tank.


August 2007

Yokogawa's new facility in Singapore will play vital role in its regional and international growth. Yokogawa Electric Corporation, a leading company in industrial automation (IA) and technology solutions, recently announced the completion of its 12-storey building in Singapore. The new facility will play a crucial role in Yokogawa's vision to be the top global IA player by 2010. 


Technical Information

Looking for more information on our people, technology and solutions?

Contact Us