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Product Description
Product Description
The EJX530A high-performance pressure transmitter adopts single-crystal silicon resonant sensor technology and is suitable for measuring the pressure of liquids, gases or steam. The EJX530A converts pressure into a 4~20mA DC current signal output and features fast response, remote configuration, self-diagnosis and other functions.
Main Functions
DPharp Digital Sensing: Outputs digital signals directly, reduces errors from digital-to-analog conversion, and delivers more stable measurements.
Remote Operation & Maintenance: Realize remote configuration, monitoring and diagnosis via HART/BRAIN to reduce on-site workload.
Local Configuration (LPS): Complete parameter settings via buttons without a handheld communicator, enabling efficient on-site commissioning.
Advanced Self-Diagnosis: Detects abnormalities such as pressure impulse pipe blockage and heat tracing faults to provide early risk warning.
10-segment signal curve: capable of nonlinear compensation and suitable for complex applications such as tank and flow measurement.
Core Advantages
Ultra-high Accuracy: Measurement accuracy reaches ±0.04% of span, ensuring precise process control.
Ultra-long Stability: ±0.1% URL stability over 15 years, greatly reducing calibration and maintenance costs.
Fast Response: Response time of 90 ms, capturing dynamic pressure changes in real time.
Overpressure Resistance: Maximum withstand pressure 7200 psi (approximately 50 MPa), with impact resistance and high reliability.
Multi-communication Compatibility: Supports HART 5/7, BRAIN, FF Fieldbus, and PROFIBUS PA.
Safety Certification: Certified by Exida and TUV SIL 2/3, compatible with Safety Instrumented Systems (SIS).
Typical Applications
Petrochemical Industry: Gauge pressure monitoring and control of reaction kettles, distillation towers and storage tanks.
Electric Power Energy: Pressure monitoring for boilers, steam turbines and compressor units.
Metallurgical Industry: Pressure measurement for blast furnaces, heating furnaces and hydraulic systems.
Water treatment: Pressure monitoring of pipelines, filters and pumping stations.


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