Yokogawa EJX430A High Precision Gauge Pressure Transmitter For Oil Gas Chemical Industry

Yokogawa EJX430A High Precision Gauge Pressure Transmitter For Oil Gas Chemical Industry
The EJX430A high-performance pressure transmitter adopts monocrystalline silicon resonant sensor technology and is suitable for measuring the pressure of liquids, gases, or vapors. EJX430A converts measured pressure into 4-20mA DC current signal output, with functions such as fast response, remote setting monitoring, and self diagnosis.
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Product Description

Product Description

EJX430A  is a high-performance gauge pressure transmitter from Yokogawa EJX-A series, equipped with Yokogawa's exclusive DPharp  monocrystalline silicon resonant sensing technology. It is designed for harsh industrial conditions such as petroleum,  chemical, power, natural gas, and water treatment, and accurately measures gauge pressure parameters of gases,  liquids, and steam.

Adopting a fully digital sensing architecture, bidding farewell to traditional analog signal errors, it has advantages  such as ultra-high precision, long-term zero drift, wide range ratio, and intelligent self diagnosis. It supports  multiple industrial communication protocols and is the mainstream high-end model for industrial process pressure  measurement and control.


Core Advantage

  1. Ultra high measurement accuracy: The benchmark accuracy can reach ± 0.04%, and the high-precision version can      reach ± 0.025%, meeting the requirements of fine process control.

  2. Long term stability: 15 years of long-term drift with only ± 0.1% URL, no need for frequent on-site calibration,      significantly reducing maintenance and labor costs in the later stage

  3. Ultra wide range ratio: maximum 200:1 range ratio, one transmitter can cover multiple operating ranges, reducing      stocking models and lowering procurement inventory costs.

  4. Quick response capability: With a response time of only 90ms, it is suitable for real-time measurement and control      scenarios with large pressure fluctuations and dynamic working conditions.

  5. Intelligent diagnosis and on-site operation: Equipped with a built-in LCD display panel, supporting on-site      parameter setting, configuration, verification, and fault diagnosis; Remote debugging, monitoring, and warning of      faults such as pressure pipe blockage and temperature anomalies can be achieved through protocols such as HART,      reducing unplanned shutdowns.

  6. High safety explosion-proof level: with SIL2/3 functional safety certification, supporting explosion-proof and      intrinsic safety explosion-proof, suitable for use in hazardous explosion-proof areas such as chemical and oil and      gas industries.


Applicable Industry Scenarios

  1. Oil and gas: wellhead pressure, oil and gas pipelines, station pressure monitoring.

  2. Chemical and pharmaceutical industry: reaction kettle, distillation tower, process pipeline pressure control.

  3. Power Industry: Pressure measurement of steam/medium in boilers, steam turbines and auxiliary machinery systems.

  4. Water treatment&environmental protection: high-pressure reverse osmosis, pump station, sewage treatment      process pressure monitoring.

  5. Pressure measurement and control for industrial processes such as metallurgy, papermaking and building materials


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Products Recommended

Pressure Transmitters for Industrial Pressure Measurement

Xinyi Instrument supplies pressure transmitters for process control, hydraulic systems, petrochemical plants, water treatment, HVAC, power generation and general industrial pressure monitoring. Our pressure transmitter range covers gauge pressure, absolute pressure, differential pressure, high temperature media and digital communication applications.

Choose from compact pressure transmitters, smart 3051 differential pressure transmitters, diaphragm seal models, RS485 digital pressure transmitters and high frequency dynamic pressure sensors. Standard outputs include 4-20 mA, voltage output, HART and RS485 Modbus options, with stainless steel wetted parts and custom process connections available on request.

Pressure Transmitter Parameters

Pressure Types Gauge, absolute, negative pressure, differential pressure
Measuring Range From low differential pressure to high pressure ranges up to 100 MPa, depending on model
Output Signals 4-20 mA, 0-5 V, 1-5 V, 0-10 V, RS485 Modbus, HART options
Accuracy Typical options include 0.1%, 0.2%, 0.25% and 0.5% FS
Process Connection M20 x 1.5, G1/4, G1/2, NPT and customized thread connections
Wetted Materials Stainless steel, 316L diaphragm and corrosion-resistant sealing options
Media Water, oil, gas, air, steam and compatible liquid or gas media
Applications Pipeline pressure, tank level, flow differential pressure, hydraulic pressure and automation systems

Recommended Pressure Transmitter Series

  • Xinyi YW-150 - differential pressure transmitter for stable industrial measurement.
  • Xinyi YW-3051DP - smart differential pressure transmitter for process control.
  • Xinyi YW-130 / YW-140 - compact pressure transmitters for general pressure monitoring.
  • RS485 Digital Pressure Transmitter - Modbus communication for remote monitoring systems.
  • High Temperature Pressure Transmitter - designed for hot media and demanding process conditions.
  • Siemens, Yokogawa and ABB Options - international brand transmitters available for project matching.

Pressure Transmitter FAQ

What is a pressure transmitter used for?

A pressure transmitter converts the pressure of liquid, gas or steam into a standard electrical signal for PLC, DCS, recorder or control instrument input. It is widely used for pipeline pressure, tank level, flow measurement and process safety monitoring.

How do I choose the right pressure transmitter?

Confirm the pressure range, pressure type, medium, temperature, output signal, accuracy, installation thread, electrical connection and environmental requirements. For corrosive media, high temperature or sanitary applications, diaphragm material and sealing structure are especially important.

What is the difference between gauge, absolute and differential pressure transmitters?

Gauge pressure transmitters measure pressure relative to atmospheric pressure. Absolute pressure transmitters measure pressure relative to vacuum. Differential pressure transmitters measure the pressure difference between two points and are commonly used for flow, filter and level measurement.

Can Xinyi Instrument provide customized pressure transmitters?

Yes. Xinyi Instrument can support customized pressure ranges, process connections, output signals, cable length, display options and model selection for different industrial applications.