The EJX910A multivariable pressure transmitter delivers precise measurements of differential pressure, static pressure, and process temperature. It features multi-sensing technology with a single-crystal silicon resonant sensor and covers multiple protocols, including HART, FOUNDATION Fieldbus, and RS485 Modbus.
|Mass Flow Version||Multi-Sensing Version|
The EJX910A 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.
All flow factors for mass flow calculation are dynamically compensated to an optimum value. The flow factors that are automatically compensated are: discharge coefficient, diameter of primary device, upstream internal pipe diameter, gas expansion factor, density, and viscosity.
The DPharp sensor directly outputs a digital signal, eliminating the need for analog to digital conversion and improving performance.
When installed in the field, DP transmitters are subjected to continuous variations in pressure and temperature which will affect the accuracy. The performance may drift over time and is quantified using long term stability. There is unconditional guarantee of long-term stability under the complete range of operating conditions.
Predictive impulse line blocking and heat tracing diagnostics anticipate whether troubleshooting is needed.
Easy to read indicator provides all the information you need. The indicator can display any of the variables measured (DP, SP, External 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.
The EJX910A reduces total cost of ownership by having safety as standard, extending calibration intervals, and utilizing a common communication platform for all protocols.
All Yokogawa transmitters:
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 on product yields. This requires a calibration check interval to ensure you’re operating within desired error limits.
EJX-A series transmitters have a long-term stability of ±0.1% per 15 years under all operational conditions, reducing calibration frequencies and maintenance costs.
FOUNDATION Fieldbus Protocol
RS485 Modbus Protocol
With the rapid globalization of markets, numerous international standards and approvals are becoming necessary. Yokogawa pressure transmitters have acquired various international certifications including FM, CSA, ATEX, IECEx, INMETRO, KOSHA, EAC, and NEPSI.
The proven DPharp technology of the EJX910A increases plant availability with its advanced diagnostics and quicker resolution of maintenance issues through multiple communication options. Verified by independent third parties around the world, our transmitter provides superior reliability and performance.
Yokogawa’s DPharp sensor technology was developed in the early 1990s, and today, over 11 million Yokogawa transmitters and calibrators are installed using this technology.
The performance and reliability of Yokogawa’s EJX-A transmitter series have been verified by independent third parties from around the world. From Safety System SIL rating to general performance evaluations, the EJX-A series has met or surpassed every test that it has been given.
FieldMate FlowNavigator™ is a PC-based software that is exclusively designed for use with the EJX910A / EJA930A. It uses FDT/DTM standards to enable users to configure mass flow and achieve accurate measurements with real-time full density compensation.
For Differential pressure transmitters, Yokogawa offers a complete line of IEC 61518 compliant 3-Valve and 5-Valve manifolds. Available in T-Style, H-Style, Wafer-Style, and Bottom Process Connection Style and can be ASME B31.1 (Power) Compliant, ISO 15848 Compliant, or TA-Luft Compliant.
Yokogawa has partnered with Burns Engineering to offer industrial sensors. Burns Engineering provides a wide variety of sensor types (RTD or TC), thermowell materials, thermowell types, and immersion lengths for matching a wide range of customer requirements.
Direct-immersion RTD sensor (Thermowells Available)
Join Applications Engineer Michael Keller as he guides you through the steps for connecting the EJX910 Modbus with the USB Modbus converter.
Yokogawa presents a brief tutorial on configuring Stardom RTU to communicate with EJX Multivariable Pressure and Temperature transmitter via Modbus RTU over RS485. Appropriate function blocks and settings within Logic Designer are covered in order to read in the primary three variables DP, SP, and Temperature. Also a quick review of FieldMate and Kepware OPC Server are shown as examples of ways to review and change the settings of the EJX 910 Modbus MV transmitter.
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