Product Description

The  EJA438E  diaphragm sealed pressure transmitter adopts single crystal silicon resonant sensor technology, which is suitable for  measuring the pressure and liquid level of high and low temperature, high vacuum, high viscosity, and easily  crystallized media. It has functions such as fast response, remote setting, and self diagnosis.

Core Advantages

1. Remote Diaphragm Seal Design：Built-in remote diaphragm structure isolates high-viscosity, easily crystallizable,      particle-containing and strongly corrosive media, prevents impulse line blockage, and avoids damage to the      transmitter caused by media entering its interior.

2. Excellent high temperature resistance：It can isolate heat from high-temperature media, adapt to high-temperature      process working conditions, protect the transmitter body, and extend its service life.

3. Ultra-high measurement accuracy + ultra-stable performance：Accuracy up to ±0.1%FS with a turndown ratio as high      as 115:1; long-term stability of ±0.2% over 10 years, requiring almost no frequent calibration and saving      maintenance costs.

4. Original DPharp Single-Crystal Silicon Resonant Sensing Technology：Digital sensing, low temperature drift, and      strong anti-interference capability. It delivers more stable measurement and lower failure rate compared with      ordinary diffused silicon transmitters.

5. Multiple material options available with excellent corrosion resistance：Optional wetted diaphragm materials      include 316L, Hastelloy, Monel and Tantalum, suitable for working conditions with strong acid, strong alkali and      severe chemical corrosion.

6. Multi-communication Protocol Compatibility：Supports HART, BRAIN, FF and PROFIBUS PA protocols, compatible with      major DCS/PLC systems for seamless installation and integration.

7. On-site tool-free configuration：Comes with a built-in key display screen; range adjustment and parameter setting      can be done on-site without a handheld operator, enabling simple and time-saving commissioning.

8. High Safety Level Certification：It features SIL2/SIL3 functional safety certification and can be applied to SIS      safety interlock systems in chemical, oil and gas industries, ensuring reliable operation in high-risk working      conditions.

9. Improve the self-diagnosis function：Built-in intelligent self-diagnosis, automatic fault early warning, hidden      danger inspection in advance, and reduction of production line downtime losses.

10. High protection grade and strong environmental adaptability：IP66/IP67 dustproof and waterproof, with an optional      explosion-proof version available. It can operate stably in outdoor, field and hazardous areas.

Typical Application Scenarios

• Petrochemical Industry

• Chemical Engineering and Pharmaceuticals

• Food and Beverage

• Electric Energy

• Environmental Protection and Water Treatment

• Metallurgy and Building Materials