Yokogawa EJA430A Transmitter

Core Performance & Industrial Application

The Yokogawa EJA430A is the DPharp traditional-mount gauge pressure transmitter for liquid, gas and steam gauge pressure measurement.

Reference accuracy ±0.065% of calibrated span; stability ±0.1% URL per 5 years with resonant silicon sensor technology.

Two-wire 4-20 mA DC output carries superimposed BRAIN/HART FSK digital communication for remote setup and diagnostics.

Two capsule ranges: A 0.03-3 MPa (4.3-430 psi), B 0.14-14 MPa (20-2000 psi); max working pressure 430/2000 psig, overpressure 645/3000 psig.

It pairs with impulse piping and manifold in gauge pressure monitoring loops.

Technical Specifications

▶ Product type: Gauge pressure transmitter

▶ Brand: Yokogawa Electric

▶ Model: EJA430A

▶ Reference accuracy: ±0.065% span; stability ±0.1% URL /5 years

▶ Output: 2-wire 4-20 mA DC; BRAIN / HART® FSK digital

▶ Range A: 0.03-3 MPa (4.3-430 psi); MWP 3 MPa (430 psig); overpressure 4.5 MPa (645 psig)

▶ Range B: 0.14-14 MPa (20-2000 psi); MWP 14 MPa (2000 psig); overpressure 21 MPa (3000 psig)

▶ Fill: Silicone oil; wetted SUS316L capsule, Teflon-coated gasket

▶ Response: ~0.2 s time constant; fail upscale ≥21.6 mA

▶ Mounting: Traditional-mount vertical impulse piping, field cable entry

▶ Feature: Resonant sensor, HART remote config, gauge pressure only

▶ Note: Capsule, wetted material and housing option confirmed from order code/nameplate

▶ Country of origin: Japan

▶ Compliance: CE, UL, ATEX certification

Industry Applications

Applied in liquid/gas/steam gauge pressure monitoring in oil, chemical, power and process plant spare replacement.

Note: Confirm capsule code, range span, fill and process connection against nameplate before ordering