EJX930A Multivariable Transmitter

The EJX-A series is Yokogawa's premium performance line of DPharp transmitters. Released in 2004, it offers the performance and stability needed in demanding applications. The EJX-A series performance makes it the thoroughbred of the DPharp family of pressure transmitters.

The EJX930A multivariable transmitter is a remarkable innovation in multi-sensing technology. It makes optimal use of the unique characteristics of the DPharp sensor to give you greater insight into your process.

EJX930A features include:

Mass Flow Version:

  • ±1.0% mass flow rate accuracy
  • Fully compensated mass flow
  • Mass Flow Totalizer with ±1.0% accuracy
  • Pulse / Contact output
  • 4,500 psi MWP
  • TUV SIL 2/3 Certification

Multi-Sensing Version:

  • ±0.04% Differential Pressure Accuracy
  • ±0.1% Static Pressure Accuracy
  • ±0.9°F External Temerature Accuracy
  • 4,500 psi MWP
  • TUV SIL 2/3 Certification

Explore how the EJA930A can help you Boost your bottom line.

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

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Digital Performance






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Self Diagnostics



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

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Rugged Construction



Proven Technology



Inherently Safe




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

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 No Learning Curve



EJX930A Overview

Measurement Types
Variable Mass Flow
Differential Pressure (DP)
Static Pressure (SP)
External Temperature (from RTD)
Reference Accuracy
Mass Flow ±1.0% of Range
DP ±0.04% of Span
SP (Absolute) ±0.1% of Span
External Temperature ±0.9°F
Long Term Stability (All Normal Operating Conditions)
DP ±0.1% of URL per 10 years
Response Time
DP All Capsules: 250 ms
SP All Capsules: 200 ms
Maximum Pressure Limit (MWP)
All Capsules 4,500 psi
Over-pressure Effect
DP ±0.03% of URL
Specification Conformance
EJX-A Series ±3σ
Burst Pressure (Absolute)
All Capsules 10,000 psi


EJX930A Communication Protocols

HART Protocol

  • 1.0% mass flow rate accuracy over 1:10 flow range
  • Simultaneous dual output of 4 to 20mA and pulse signals
  • HART protocol revision selectable from HART 5 or HART 7
  • SIL 2 certified standard

FOUNDATION Fieldbus Protocol

  • 1.0% mass flow rate accuracy over 1:10 flow range
  • Various function blocks available: 5 AIs, AR, IT, SC, and IS standard
  • PID is an optional feature
  • Cyclically displays up to 10 values

Modbus Protocol

  • RS485 Modbus protocol provides easy multi-sensing data transmission to flow computers
  • The process data status is provided for each measured variable: Differential Pressure, Static Pressure, and Process Temperature - making it easy to implement process data diagnosis
  • Cyclically display up to 16 variables including RTU management data
  • Up to 32 transmitters can be connected by multi-drop communication
  • 32 character tag and squawk are supported for easy identification of transmitters

FieldMate FlowNavigator™

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.

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3rd Party RTD Sensors and Thermowells

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Direct-immersion RTD sensor (Thermowells Available)

Instruction Manuals
General Specifications
Technical Information

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