The SAI143-H33 Analog Input Module from Yokogawa is engineered for precise signal acquisition in demanding industrial automation environments. Despite the original listing error labeling it as a digital output module, this unit is correctly classified as an analog input module.
Key Technical Specifications
Model: SAI143-H33
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: 1.3 kg
Application Scenarios
This module is ideal for process industries requiring reliable current signal acquisition, such as chemical plants, power generation facilities, and oil & gas automation systems. Its isolation and fast update rate make it suitable for distributed control systems (DCS) and programmable logic controllers (PLC).
FAQ
Q: Is the SAI143-H33 suitable for 2-wire transmitters? A: Yes, it supports simultaneous ON/OFF transmitter power supply for all 16 channels in 2-wire mode.
Q: What distinguishes this module from similar Yokogawa analog input units? A: The SAI143-H33 offers faster data refresh (40 ms) and robust isolation, making it more reliable in noisy industrial environments compared to standard input modules.
