Yokogawa EJA110A DP Transmitter

Core Performance & Industrial Application

The Yokogawa EJA110A is a classic DPharp differential pressure transmitter family for liquid, gas and steam flow, level, density and pressure measurement.

It outputs a two-wire 4-20mA DC signal with superimposed HART/BRAIN FSK digital communication for DCS acquisition and remote configuration.

Reference accuracy reaches ±0.065% of calibrated span, with square-root output available for DP flow computation.

It uses resonant pressure sensor technology with long-term stability of ±0.1% URL over 60 months (M/H/V capsule).

It supports external zero adjustment, selectable damping and NAMUR-style up-scale / down-scale failure alarm.

It is a widely kept legacy spare for process flow and tank level measurement loops.

Technical Specifications

▶ Product type: Differential pressure transmitter

▶ Brand: Yokogawa

▶ Model: EJA110A (family)

▶ Reference accuracy: ±0.065% of span

▶ Output: 4-20 mA DC HART / BRAIN FSK, linear or square-root

▶ Supply voltage: 10.5 ~ 42 V DC (general/flameproof)

▶ DP capsules: L / M / H / V; range up to 14 MPa (2000 psi)

▶ Overpressure limit: 16 MPa (2300 psi) M/H/V capsule

▶ Ambient temperature: -40℃ ~ +85℃ (with LCD -30℃ ~ +80℃)

▶ Process temperature: -40℃ ~ +120℃

▶ Housing: Low-copper cast aluminum, polyurethane paint

▶ Protection rating: IP67, Type 4X cover

▶ Net weight: 3.9 kg (without indicator and connector)

▶ Fill fluid: Silicone oil (fluorinated oil option)

▶ Feature: Remote HART setup, damping 0.2~64 s, failure alarm configurable

▶ Country of origin: Japan

▶ Compliance: CE, EN 61326-1 EMC, PED 97/23/EC

Industry Applications

Applied in chemical, power, oil & gas flow orifice measurement and tank level DP spare replacement.

Note: The suffix defines capsule range, wetted material, process and electrical connection; confirm full order code before ordering