Overview
Yokogawa EJA-430A is a traditional-mount gauge pressure transmitter designed for accurate measurement of gauge pressure in industrial processes. Built on Yokogawa’s proven DPharp sensor technology, this transmitter delivers reliable performance and device intelligence for real-time process monitoring. The EAS5B-77NN/FF1/D1 S1 configuration provides a comprehensive solution for plants requiring stable, long-term pressure measurement with integrated diagnostics.
Key Features
- DPharp Digital Sensor Technology: Direct digital output eliminates analog-to-digital conversion errors, enhancing measurement accuracy and repeatability.
- Long-Term Stability: Yokogawa’s rugged construction and proven sensor design ensure consistent performance over extended operating periods with minimal drift.
- Advanced Diagnostics: Built-in intelligence and diagnostic capabilities simplify maintenance routines and reduce plant downtime.
- Greater Linearity and Repeatability: Superior sensor characteristics with no inherent hysteresis provide tighter process control and on-spec product quality.
- Traditional-Mount Design: Standard flange mounting compatible with most industrial process connections and manifold systems.
Technical Specifications
Detailed specifications for the EJA-430A vary by configuration code. The base model operates on standard process instrumentation power supplies with 4-20 mA output standard. Pressure range, damping, and output scaling are determined by the EAS5B-77NN/FF1/D1 S1 designation. For exact operational parameters including max pressure rating, temperature range, and material compatibility, consult the factory datasheet or contact technical support with your complete model code.
Typical Applications
- Industrial steam systems and boiler pressure monitoring
- Compressed air line pressure measurement and regulation
- Process flow control loops requiring gauge pressure feedback
- Tank and vessel overpressure protection systems
- HVAC and refrigeration pressure monitoring
- Food, chemical, and pharmaceutical process industries
Compatibility & Replacements
Compatible With
- Standard process control systems accepting 4-20 mA analog input
- Distributed control systems (DCS) with analog input cards
- Programmable logic controllers (PLC) with analog input modules
- Industrial SCADA platforms
- Pressure transmitter manifolds with traditional flange mount
Replaces / Drop-In Replacement For
The EJA-430A with EAS5B-77NN/FF1/D1 S1 configuration directly replaces earlier Yokogawa gauge pressure transmitter models with similar flange patterns and signal output. Verify compatibility with your system integrator before ordering, as mounting and output configurations vary by code.
Works With
- Industry-standard 4-20 mA analog input modules
- Hart communication protocol (version dependent on configuration)
- Process instrumentation power supplies (typically 24 VDC)
- Pneumatic and electronic regulator systems
- Distributed I/O networks in modern control systems
