Overview

The ABB EMA11 is an industrial event marker amplifier designed for ABB’s Symphony Plus HR turbine modules.
It is primarily used in vibration monitoring applications, capturing and amplifying event signals from sensors to ensure accurate logging of disturbances.

By marking vibration events, the EMA11 helps operators diagnose faults, improve reliability, and enhance safety in turbine and rotating machinery systems.

Technical Data

Key Features

• Accurate event detection: Captures transient vibration signals for precise monitoring.

• Signal amplification: Boosts weak sensor signals for reliable analysis.

• Industrial durability: Operates across wide temperature ranges with robust design.

• Compact design: Lightweight and easy to integrate into turbine control racks.

• System compatibility: Works seamlessly with ABB Symphony Plus and HR turbine modules.

Typical Applications

• Turbine vibration monitoring in power generation plants.

• Rotating machinery diagnostics in oil & gas, chemical, and heavy industries.

• Event recording for transient disturbances in industrial automation systems.

• Condition monitoring to improve reliability and safety of critical equipment.

FAQ

Q1: What is the primary function of the ABB EMA11?
A1: It amplifies and marks vibration events for accurate monitoring and diagnostics.

Q2: Which systems is it compatible with?
A2: It is used in ABB Symphony Plus / Infi‑90 HR turbine modules.

Q3: What is the operating voltage range?
A3: It operates between 3–15 V DC.

Q4: Where is it typically applied?
A4: In power plants, turbine systems, and rotating machinery monitoring.