Yokogawa EJA438E Pressure Transmitter

Feature & Principle

It is Yokogawa EJA438E diaphragm sealed gauge pressure transmitter adopting DPharp single crystal silicon resonant sensing technology. The remote diaphragm seal and capillary transfer pressure to sensor element, avoiding direct contact between sensor and harsh process medium. It converts pressure change into standard 4-20mA analog signal with digital communication. It supports remote configuration and self-diagnosis, built-in density compensation for capillary filling fluid. It is widely used for pressure and liquid level measurement in chemical, oil and high-temperature process pipelines.

Specifications

Model: EJA438E Brand: Yokogawa Series: EJA-E Accuracy: ±0.2% Response time: 200 ms Output: 4-20mA, HART / BRAIN / FF / PA optional Safety certification: SIL2 / SIL3 Wetted parts: 316L, Hastelloy, tantalum optional Application: Petrochemical, high temperature, viscous, easy crystallized medium pressure and level monitoring Certification: ATEX, IECEx

Components & Diagnostics

Transmitter electronic module, resonant sensor capsule, capillary tube, remote diaphragm seal, process flange, local display. Common faults: diaphragm corrosion/damage, capillary leakage, zero drift, communication failure.

Product Brief

EJA438E diaphragm sealed pressure transmitter, Yokogawa EJA-E series process measuring spare widely used for high temperature and viscous medium overhaul and replacement.