Yokogawa AMM11 Magnetic Flow Converter

The Yokogawa AMM11 is a magnetic flow converter engineered to deliver precise and reliable measurements of conductive liquids across various industrial applications. Known for its superior stability, the AMM11 performs optimally even in demanding environments, such as those involving slurry fluids. Additionally, the device features a microprocessor-based design, offering key functions such as bi-directional flow measurement, multi-range support, and batch control. With a fast response time and flexible communication protocol options, it is a top choice for dynamic process control.

Key Features of the Yokogawa AMM11

Dual Frequency Excitation: The Yokogawa AMM11 uses dual-frequency excitation for pipes up to 400mm (16 inches). For larger pipes (greater than 500mm/20 inches), it utilizes pulsed DC excitation. As a result, it ensures accurate flow measurement across a wide range of pipe sizes.
Bi-Directional Flow Measurement: The AMM11 enables bi-directional flow measurement, making it highly versatile for both forward and reverse flow applications. Therefore, it adapts easily to a wide variety of industrial processes.
Flexible Output Signals: This model provides multiple output options, including 4-20 mA DC current output, pulse output, and alarm output through transistor contacts. Thus, it integrates seamlessly with a variety of systems.
Long Cable Length Support: The AMM11 supports a maximum cable length of up to 2 km (6500 feet). This allows for greater flexibility when designing and installing systems in large-scale operations.
Communication Protocols: The AMM11 supports BRAIN and HART communication protocols (except for the AM11-AS model). These options ensure that the device can easily integrate with existing process control systems, enhancing data transfer and control.

Technical Specifications

Specification	Details
Model	Yokogawa AMM11
Category	Magnetic Flow Converter
Excitation Method	Dual Frequency (up to 400mm), Pulsed DC (500mm and larger)
Input Signal	Status Input (Dry Contact)
Current Output	4-20 mA DC
Pulse Output	Transistor Contact
Alarm Output	Transistor Contact
Status Output	Transistor Contact
Communication	BRAIN or HART (except AM11-AS)
Maximum Cable Length	Approx. 2 km (6500 ft)

Applications of the Yokogawa AMM11

The Yokogawa AMM11 is ideal for a wide range of industrial applications, offering accurate and reliable flow measurement for conductive liquids. Common uses include:

Slurry Fluid Measurement: The AMM11 ensures precise measurement even with thick or viscous fluids, such as slurries, where high accuracy is vital.
Dynamic Process Control: The device’s fast response time, combined with flexible output options, makes the AMM11 perfect for real-time process control. In this way, it quickly adjusts to changes in flow conditions, ensuring continuous system performance.
Batch Control Systems: With its ability to measure bi-directional flow and provide pulse outputs, the AMM11 is an excellent choice for batch processing, where precise control and measurement are essential.
Water and Wastewater Treatment: The AMM11 is widely used in water treatment applications. It accurately measures flow rates of both incoming and outgoing fluids, supporting efficient water treatment processes.

In summary, the Yokogawa AMM11 guarantees precise and reliable flow measurement in even the most demanding environments. Its versatility and stability make it the ideal solution for a variety of industrial and process control applications.