The SAI143-S03 Analog Input Module from Yokogawa is designed for reliable current signal acquisition in distributed control systems. While the original listing incorrectly described it as a digital output module, this unit is correctly classified as an analog input module. It provides robust isolation, fast data refresh, and transmitter power supply control, ensuring dependable performance in industrial automation environments.
Key Technical Specifications
Model: SAI143-S03
Manufacturer: Yokogawa
Product Type: Analog Input Module
Number of Channels: 16 isolated input channels
Rated Input Range: 4–20 mA
Data Update Frequency: 40 ms
Transmitter Power Supply: ON/OFF function available in 2-wire configuration, applied simultaneously across all 16 channels
Isolation Strength: 1.5 kV AC withstand voltage between input signal and system (1 minute)
Shipping Weight: 1.5 kg
Application Scenarios
The SAI143-S03 is suitable for industries requiring stable analog signal acquisition, including petrochemical plants, power generation facilities, and water treatment systems. Its isolation and fast update rate make it ideal for integration into Yokogawa’s DCS platforms, ensuring accurate monitoring and control of multiple analog signals.
FAQ
Q: Is the SAI143-S03 compatible with 2-wire transmitters? A: Yes, it supports simultaneous ON/OFF transmitter power supply for all 16 channels in 2-wire mode.
Q: How does the SAI143-S03 differ from the SAI143-H53 or H63? A: The S03 is a standard analog input module without HART communication or extended environmental compliance. The H53 includes HART capability and G3 compliance, while the H63 is a standard input module with similar specifications but different suffix options.
