Original EJA530E Pressure Transmitter – 4-20mA Output Hart Protocol Industrial Grade

Original EJA530E Pressure Transmitter – 4-20mA Output Hart Protocol Industrial Grade
Yokogawa EJA530E is a high-performance online installed gauge pressure transmitter from Yokogawa Electric Corporation's EJA-E series, which is a market leader. Based on Yokogawa Electric's revolutionary DPharp (Digital Pressure High Precision Resonant Piezoelectric) monocrystalline silicon resonant sensor technology, it provides unparalleled accuracy, stability, and reliability for measuring liquid, gas, and vapor pressures in different industrial processes.
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Product Description

Product Description

Yokogawa  EJA530E  is a high-performance online installed gauge pressure transmitter from Yokogawa Electric Corporation's EJA-E series,  which is a market leader. Based on Yokogawa Electric's revolutionary DPharp (Digital Pressure High Precision Resonant  Piezoelectric) monocrystalline silicon resonant sensor technology, it provides unparalleled accuracy, stability, and  reliability for measuring liquid, gas, and vapor pressures in different industrial processes.


Product Features

1.Ultra high measurement accuracy

The benchmark accuracy can reach ± 0.055%, and higher precision versions can be selected to meet the requirements of  precision process control.

2.Ten year long-term stability

The ten-year drift is only ± 0.1%, significantly reducing the frequency of on-site calibration, lowering maintenance  costs, and improving system reliability.

3.Fast response performance

The response time is only 90ms, which can accurately capture rapidly changing working pressure and ensure real-time  control

4.Advanced digital sensing technology

Adopting a monocrystalline silicon resonant sensor, it directly outputs digital signals without A/D conversion errors,  with strong anti-interference ability and more stable measurement.

5.Enrich communication protocols

Supports mainstream protocols such as HART, BRAIN, FF fieldbus, PROFIBUS PA, etc., and can seamlessly integrate into  various DCS systems

6.Improve self diagnostic function

Built in intelligent diagnosis and reverse verification function, real-time monitoring of sensor and circuit status,  facilitating early troubleshooting.

7.Complete explosion-proof and safety certification

Meets international explosion-proof certifications such as ATEX, IECEx, FM, CSA, etc., suitable for hazardous  explosion-proof areas; Simultaneously supporting SIL2 security level, it can be used for safety instrumented systems.

8.Easy to install and use

Supports optional 4-digit LCD display, with a rotatable header for easy multi angle reading; Support local button  settings, basic configuration can be completed without the need for a handheld device.

9.Wide range and strong adaptability

The measurement range covers 10kPa to 50MPa (maximum 70MPa), which can meet various working conditions from low  pressure to high pressure.

10.Durable and sturdy structure

Fully welded sealed structure, with a protection level of IP67/NEMA4X, resistant to vibration and corrosion, suitable  for harsh industrial environments.



Measurement Type:gauge pressure
Accuracy class:±0.055%
Response time:90ms
Output signal:4–20mA + HART/BRAIN digital communication
Supply Voltage:10.5–42V DC
Process temperature:-40℃~125℃
Ambient temperature-40℃~85℃
Process Connection:1/2 NPT


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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.