Yokogawa EJA110E Differential Pressure Transmitter (DPharp Sensor)

Overview

The Yokogawa EJA110E is a benchmark differential pressure transmitter built on the proven DPharp single-crystal resonant sensor. It delivers high accuracy, fast response and long-term stability for custody-grade flow with orifice/venturi/averaging pitot, steam and condensate service, wet-leg level, and density/DP applications. Native 4–20 mA with HART® enables seamless DCS/PLC integration; FOUNDATION™ Fieldbus and PROFIBUS® PA options cover digital architectures. The EJA110E is widely specified in O&G, power, chemical, and water industries for its stability, diagnostics and lifecycle economy.
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Key Features & Specs

• Sensor: DPharp resonant silicon, inherently stable and fast.

• Accuracy: up to ±0.055% of span (typical offering).

• Response time: ~90 ms for dynamic control/flow.

• Output: 4–20 mA DC with digital communication (HART); FOUNDATION Fieldbus/PROFIBUS PA optional.

• Static pressure & diagnostics: local indicator can show DP and static; advanced self-diagnostics.

• Safety & approvals: SIL capability and hazardous-area options (model dependent).

• Construction: robust wetted materials, wide capsule ranges, remote seals available. 

Applications

• Flow (DP across primary element) for hydrocarbon liquids, gas and steam.

• Level (wet/dry leg) on pressurized vessels/columns.

• Density/DP monitoring in process and utilities. 

Why Seven Star LLC

• Genuine Yokogawa, quick lead-time, capsule/range selection help.

• Sizing & configuration: range-code, electrical/remote-seal selection, process connection, mounting, impulse-line & wet-leg recommendations.

• Commissioning support: HART setup, damping, square-root extraction, scaling for flow computer/DCS.

What’s Included

Transmitter per model code, process cover & manifold interface (per selection), local indicator (if specified), certificates/manual; remote seals/capillaries if ordered.

Model/Protocol Options 

EJA110E… with HART 4–20 mA; FOUNDATION Fieldbus; PROFIBUS PA; capsule ranges spanning low DP (mbar) to high DP (bar), various materials and process connections. 

Tech Highlights

• Measuring media: liquid, gas, steam; flow/level/density DP.

• Output: 4–20 mA + HART (FF/PA optional).

• Accuracy: ±0.055% of span (typical); high stability.

• Response: ~90 ms.

• Diagnostics: self-diagnostics; static pressure readable on indicator/HART.

• Approvals/functional safety: SIL options (per model code). 

FAQ

Q1: Is EJA110E suitable for steam and high-dynamic flow?

Yes—fast response (~90 ms) and stability make it fit for steam and dynamic flow control. 

Q2: Which communications are supported?

Standard 4–20 mA + HART; FOUNDATION Fieldbus and PROFIBUS PA available by option code. 

Q3: Can it display static pressure locally?

Yes—the local indicator can show static pressure; it’s also available over HART. 

Q4: Does it support SIL?

EJA110E has SIL-capable options depending on model code/approval. Share your SRS and we’ll confirm. 

Call to Action

Send your medium (liquid/gas/steam), range, process temp/pressure, wetted material, mounting and protocol—we’ll validate capsule, sealing, and lead time, then quote fast.