Reliable Solutions for Vacuum and Absolute Pressure Measurement
Absolute Pressure (AP) transmitters measure pressure relative to absolute zero (vacuum). They are essential in vacuum processes, gas compression systems, reactors, and critical pressure control applications. Yokogawa’s EJA and EJX series absolute transmitters stand out with high accuracy, long‑term stability, and DPharp digital sensor technology.
Absolute Pressure Transmitters:
Note: The EJA series is economical and suitable for standard applications, while the EJX series is premium, designed for high precision and fast dynamic response processes.
Example for one of the most commonly used models, EJA310E:
| Code | Description |
| EJA310E | Absolute Pressure Transmitter |
| D | Range code (measurement range) |
| M | Body material (316SS) |
| S5A | Diaphragm material (Hastelloy, Tantalum options) |
| 92DN | Electrical connection standard |
| /NF | Option (e.g., ATEX certification) |
➡ Complete product code breakdown tables can be prepared for all models (310 – 510 – EJX series) if required.
| Specification | Value |
| Measurement Range | 0–1 mbar up to 500 bar |
| Accuracy | ±0.04% (EJX: ±0.025%) |
| Output Signals | 4–20 mA HART, FOUNDATION Fieldbus, Profibus |
| Process Connections | NPT, DIN/ISO, Flange adapters |
| Wetted Materials | 316SS, Hastelloy, Monel, Tantalum |
| Protection Class | IP66/IP67, optional IP68 |
| Operating Temperature | −40 °C – +85 °C |
| Safety Certification | SIL2 / SIL3 |
Additional Note: The DPharp sensor structure is more stable than conventional piezoresistive sensors, offering long‑term drift‑free performance.
Absolute transmitters measure pressure relative to vacuum reference:
This ensures reliable measurement in vacuum processes, gas compression systems, and critical pressure control applications.
| Application / Requirement | Recommended Model |
| General vacuum measurements | EJA310E |
| High‑accuracy critical processes | EJX310A (±0.025%) |
| Wide‑range absolute pressure measurements | EJA510E |
| Premium high‑accuracy applications | EJX510A |
| Corrosive environments & diaphragm seal requirement | EJXC80A / EJAC80E |
Yeşil Grup Enerji independently supplies Yokogawa EJA310E, EJX310A, EJA510E, and EJXC50A series in Turkey and global markets.
Regional coverage:
For Yokogawa EJA310E, EJX310A, EJA510E, or other absolute pressure transmitter models:
📞 +90 505 696 61 00
🌐 www.yesilgrupenerji.com
👉 Important Note: Yeşil Grup Enerji is an independent supplier. We are not the official distributor of the brands mentioned on this page. However, with multi‑brand global sourcing, extensive stock access, and fast RFQ responses, we provide the most suitable solutions for your projects.