The Yokogawa AAI141-H00/K4A00 is a high-performance analog input module designed for integration into Yokogawa’s Distributed Control Systems (DCS), such as CENTUM VP and ProSafe-RS. This model supports high-density analog input applications with superior accuracy and reliability, making it ideal for industries that demand precise process control and data acquisition.

This module accepts multiple types of analog signals, including 4–20 mA and 1–5 V, and offers high-resolution input processing with advanced noise filtering and galvanic isolation. Built to operate in challenging environments, the AAI141-H00/K4A00 ensures stable performance across a wide range of temperatures, humidity levels, and industrial conditions. It’s an essential building block for scalable, high-integrity automation systems.

Product Specifications

Product Applications

The AAI141-H00/K4A00 is ideal for process industries where high-precision analog input signals are critical to plant performance. Common applications include:

1. Petrochemical and Refining Plants

   For continuous monitoring of flow, level, and pressure instruments.

2. Power Generation

   To capture key operational parameters for turbines, boilers, and balance-of-plant equipment.

3. Water and Wastewater Treatment

   For monitoring flow rates, pressure sensors, pH probes, and conductivity.

4. Pharmaceutical Manufacturing

   For accurate feedback from batch reactors, temperature probes, and cleanroom instrumentation.

5. Food and Beverage Industry

   Used in fermentation control, CIP systems, and dosing feedback loops.

6. Pulp and Paper Processing

   For analog input from chemical dosing systems, flow meters, and tank level transmitters.

Product Advantages

1. High-Resolution Input

   With 16-bit resolution, the module provides precise readings even for minute signal variations.

2. Excellent Signal Isolation

   Built-in optical isolation per channel improves signal integrity and protects against electrical interference.

3. Multi-Signal Compatibility

   Supports both voltage and current input types, allowing flexible field integration.

4. Industrial Grade Durability

   Engineered to withstand harsh environmental conditions typical of industrial facilities.

5. Hot-Swappable

   Can be replaced without shutting down the entire system, minimizing operational downtime.

6. Built-in Diagnostics

   Fault detection and channel diagnostics enhance system reliability and facilitate troubleshooting.

7. Compact and Modular Design

   Saves cabinet space and allows flexible system expansion.

8. Global Compliance

   Certified to meet international safety and environmental standards (CE, UL, RoHS).

Frequently Asked Questions (FAQ)

1. What is the input signal type supported by the AAI141-H00/K4A00?

   It supports both 4–20 mA and 1–5 V analog signals.

2. How many channels does this module provide?

   It offers 16 analog input channels.

3. Can this module be used in redundant systems?

   Yes, it supports redundancy when installed in compatible architectures.

4. Is the module suitable for high-temperature environments?

   Yes, it operates between -20°C and +60°C.

5. Does the module include diagnostic features?

   Yes, it includes per-channel diagnostics and error reporting.

6. Can it be used with Yokogawa’s ProSafe-RS system?

   Yes, it’s fully compatible with both CENTUM VP and ProSafe-RS platforms.

7. What kind of isolation is provided?

   Each input channel is optically isolated from each other and from the control system.

8. How is the module powered?

   Power is supplied via the I/O node or baseplate connection.

9. Is hot swapping supported?

   Yes, it can be hot-swapped when used in supported systems.

10. What is the module’s weight and size?

    It weighs 0.2 kg and measures 107.5 × 32.8 × 130 mm.