Yokogawa EJA530A Transmitter

Core Performance & Industrial Application

The Yokogawa EJA530A is the DPharp in-line mounted gauge pressure transmitter for liquid, gas and steam pressure measurement.

It uses a resonant silicon sensor and outputs a 4-20 mA DC signal with superimposed HART digital communication.

Reference accuracy ±0.2% of span (±0.075% with HAC option on A/B/C capsules), stability ±0.1% URL per 12 months.

Maximum working pressure up to 8500 psig (60 MPa) on capsule D, with remote setup via BRAIN terminal or HART host.

It supports FOUNDATION Fieldbus / PROFIBUS PA variants and is used as spare replacement in process pressure loops.

Technical Specifications

▶ Product type: In-line gauge pressure transmitter

▶ Brand: Yokogawa Electric

▶ Model: EJA530A

▶ Reference accuracy: ±0.2% span; ±0.075% span with HAC (A/B/C)

▶ Stability: ±0.1% URL / 12 months

▶ Output: 4-20 mA DC HART; linear or square-root selectable

▶ Supply voltage: 10.5-42 VDC loop power

▶ Ranges: A 0-200 kPa; B 0-2 MPa; C 0-10 MPa; D 0-50 MPa (capsule-dependent)

▶ Max working pressure: Up to 8500 psig (60 MPa, capsule D)

▶ Protection: IP67; ambient -40~85℃; max process 120℃

▶ Feature: HART remote setup, resonant sensor, fieldbus options

▶ Note: Capsule, range and fill confirmed from order code/nameplate before ordering

▶ Country of origin: Japan

▶ Compliance: CE, UL, IECEx, ATEX certification

Industry Applications

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

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