EJA310E Traditional-mount Absolute Pressure Transmitter

The EJA-E series of transmitters combines the ruggedness and success of the work-horse EJA-A series with the performance of the thoroughbred EJX-A series to deliver the type of product you have come to expect from Yokogawa.

The EJA310E is our traditional-mount absolute pressure transmitter in the series.

EJA310E standard features include:

•  ± 0.1% Accuracy
• ± 0.2% Stability for 10 years
• 90 ms Response Time
• Exida and TUV SIL 2/3 Certified
• 3,600 psia Maximum Over Pressure (MWP)
• Local Parameter Setting (LPS)

Available with HART 5/7, 1 to 5 VDC HART 7 (Low Power), FOUNDATION Fieldbus, PROFIBUS PA, or BRAIN communication.

Explore how the EJA310E can help you Boost your bottom line.

What Are the Benefits of Digital Sensors?

The EJA310E with DPharp digital sensor offers the performance needed to run your operations at peak performance. This ensures on-spec product, reduced waste, and improved yield, helping you increase profitability.

Digital Performance

Poor Performance = Lost Money

Other pressure sensor technologies require an analog to digital conversion before the signal can be processed, introducing additional errors. In Yokogawa’s pressure transmitters, the DPharp sensor directly outputs a digital signal, eliminating the need for analog to digital conversion and improving performance.

How to Reduce Total Cost of Ownership?

The EJA310E reduces total cost of ownership by having safety as standard, extending calibration intervals, and giving users the option to measure both differential and static pressure with one transmitter.

Safety as Standard

Inherently Safe = Reliability

At Yokogawa, safety is never an option. All Yokogawa pressure transmitters are designed and certified to IEC61508:2010 Parts 1 through 7 and IEC61511:2004 Parts 1 through 3 by Exida® and TÜV Rheinland®.

As standard, all Yokogawa transmitters are certified for single transmitter use in SIL 2 safety applications and dual transmitter use in SIL 3 safety applications. The same transmitter can be used for both process control and safety applications. Managing two separate transmitter models is no longer necessary, reducing spares inventory and simplifying daily operations.

Extended Calibration Check Intervals

Quicker Maintenance = Less Downtime

When devices are initially installed, they operate at peak performance, but what happens after they are running under various process conditions and poorly managed or maintained? Changing operating conditions can cause transmitters to drift to the point where they are no longer able to make accurate measurements for the process loop they are installed in, resulting in poor quality or an impact to product yields. This requires a calibration check interval to ensure you’re operating within desired error limits.

Yokogawa EJA-E series pressure transmitters have the long-term stability of ±0.1% per 10 years under all operational conditions, reducing calibration frequencies. As you gain experience with these transmitters, the interval between calibration checks is extended. Long-term this can help reduce your maintenance cost by up to 34%. Spend your time where it is needed.

Standard Communication Protocol

No Learning Curve = Smooth Change Over

Yokogawa transmitters support all industry standard field device communication protocols. Interoperability and interchangeability can be ensured. Use all the same tools and work procedures as before. Yokogawa transmitters are available with analog 4 to 20mA signal with either BRAIN® digital protocol or HART® digital protocol; Low Power analog 1 to 5 VDC with HART® digital protocol; or all digital FOUNDATION® Fieldbus or PROFIBUS® PA protocol.

The proven DPharp technology of the EJA310E increases plant availability with its advanced diagnostics and rugged construction. Verified by independent third parties around the world, our transmitter provides superior reliability and performance.

Proven Technology

Less Downtime = Making Product

Starting with a clean sheet of paper, Yokogawa developed in the early 1990s a completely new pressure sensing technology - the DPharp sensor. Yokogawa made a large commitment of resources and money in its development. That dedication paid off, and by late 2016, there are over 11 million installed Yokogawa transmitters and calibrators worldwide using this technology. The DPharp sensor is a proven technology.

Diagnostics

Good Diagnostics = Fewer Surprises

Unlike traditional analog sensors, which are passive, the DPharp sensor is an active digital sensor. This means it is inherently safe and constantly supplying a signal even if there has been no change in process pressure. If the signal is lost, the transmitter’s self-diagnostics will alert you if there is an issue.

In addition, the transmitter features Back-check Technology (BCT) that reverse checks all calculations in real-time. These proven-over-time features improved reliability, resulting in fewer trips to the field and better process availability.

Rugged Construction

Harsh environments can reduce the life of your instrumentation, causing maintenance issues and plant downtime. Yokogawa’s ruggedly constructed pressure transmitters feature a four-bolt pressure retaining design, Teflon® coated 316L stainless steel flange gasket, and a dual seal certified to ANSI/ISA 12.27.01. These design features extend the life of your transmitter, increasing plant availability.

Independent Third Party Verification

Less Downtime = Making Product

The Yokogawa EJA-E pressure transmitter series' performance and reliability have been verified by independent third parties from around the world. From Safety System SIL rating to general performance evaluations, the EJA-E series has met or surpassed every test that it has been given.

Local Indicator

More Information = Found Money

Easy to read indicator provides all the information you need. The indicator can display any of the variables measured (DP, SP, Capsule temperature); alarm codes with short text; and a sweeping bar graph to give a graphical representation of the process. Fully programmable, the indicator is customizable for your needs. Unlike other suppliers' transmitters, the indicator is not driven off the 4 to 20mA analog signal, but, exist as a separate circuit allowing the display to operate independently from the output signal.

EJA310E Overview

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EJA310E Capsules

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