Yokogawa AAI141-S50 16-Channel Non-Isolated Analog Input Module

Product Description

The AAI141-S50 analog input module from Yokogawa is part of the Field I/O (FIO) platform, designed for accurate current signal acquisition in industrial automation systems. Unlike isolated modules, the AAI141-S50 is a non-isolated unit, optimized for applications where isolation is not required but precision and reliability remain critical. With 16 input channels, this module supports 4–20 mA DC signals and integrates seamlessly into dual-redundant configurations, ensuring system stability and dependable performance.

Technical Specifications

• Manufacturer: Yokogawa

• Model Number: AAI141-S50

• Type: Non-Isolated Analog Input Module

• Channels: 16 analog input channels

• Signal Range: 4–20 mA DC

• Accuracy: ±0.1% of full scale

• Resolution: 16-bit

• Operating Temperature: -20°C to +70°C

• Power Supply: 24 V DC

• Redundancy: Dual-redundant configuration supported

• Current Consumption:

• 310 mA (5 V DC)

• 450 mA (24 V DC)

• Update Period: 10 ms

• Step Response Time: 100 ms

• Weight: 0.2 kg

Key Features

• Non-Isolated Design: Simplifies installation where isolation is not required

• High Resolution: 16-bit conversion for precise signal measurement

• Compact and Lightweight: At 0.2 kg, easy to install and maintain

• Dual-Redundancy Support: Ensures reliability in critical control systems

• Energy Efficient: Low current consumption for stable operation

Application Scenarios

• Oil and gas process monitoring

• Chemical and pharmaceutical manufacturing

• Power generation instrumentation

• General industrial automation requiring non-isolated current input

FAQ

Q: How many channels does the AAI141-S50 provide?  A: It supports 16 non-isolated analog input channels.

Q: What type of signals can this module measure?  A: It is designed for 4–20 mA DC current signals.

Q: Is redundancy supported?  A: Yes, the module supports dual-redundant configurations for increased reliability.

Comparison with Similar Models

• AAI143-S50: Isolated analog input module with HART support

• AAI141-S50: Non-isolated version, optimized for simpler installations