Yokogawa SAI143-H33 Analog Input Module

The Yokogawa SAI143-H33 is a high-precision analog input module designed for reliable signal processing in industrial automation applications. It supports 16 isolated input channels and delivers robust performance for process control systems. This module excels in efficiency, ensuring seamless communication and providing excellent transmitter power supply control.

Key Features of the Yokogawa SAI143-H33

16 Isolated Input Channels: The module features 16 input channels, each with independent isolation for optimal signal processing and noise reduction.
Wide Input Range: It supports an input range from 4 to 20 mA, with a permissible range of 0 to 25 mA, making it versatile for various industrial applications.
High Accuracy: The SAI143-H33 offers a rated accuracy of ±16 µA for input ranges from 0.05 to 23 mA, ensuring precise data collection.
Flexible Transmitter Power Supply Control: It provides transmitter power supply options, with a minimum of 16.15V at 20 mA and a maximum of 26.4V at 0 mA.
Data Update Frequency: The module supports a fast data update rate of 40 ms, ensuring real-time response in dynamic control systems.
Temperature Drift: With a temperature drift of ±16 µA/10 °C, the SAI143-H33 maintains its accuracy across varying temperatures.
2/4-Wire Configurations: The module offers both 2-wire and 4-wire settings, providing flexibility in system integration.

Technical Specifications

Specification	Value
Product Type	Analog Input Module
Manufacturer	Yokogawa
Model Number	SAI143-H33
Number of Input Channels	16 (Module Isolation)
Rated Input Range	4 to 20 mA
Permissible Input Range	0 to 25 mA
Input Impedance (Power ON)	250 Ω + Current Value (Typically 272.5 Ω at 20 mA, 362.5 Ω at 4 mA)
Input Impedance (Power OFF)	Minimum 500 kΩ
Rated Accuracy	±16 µA (for 0.05 to 23 mA input range)
Data Update Frequency	40 ms
Temperature Drift	±16 µA per 10 °C
Transmitter Power Supply	16.15V to 26.4V (at 0-20 mA)
Output Current Limit	25 mA
2/4-Wire Setting	Individual Channel Setting via Pins
Transmitter Power Supply ON/OFF	Available for all 16 Channels Simultaneously in 2-Wire Mode
Withstand Voltage	1.5 kV AC (1 minute)
Maximum Current Consumption	320 mA (5V System)

Why Choose the Yokogawa SAI143-H33?

The Yokogawa SAI143-H33 is engineered for precision and durability in industrial control systems. With 16 isolated input channels, it ensures accurate signal reception, even in challenging environments. The flexibility of 2-wire and 4-wire configurations provides versatility for system integration, while the module’s fast data update rate supports real-time control.

Its reliable power supply control and low temperature drift make it an excellent choice for long-term operations, reducing maintenance and downtime. Whether you’re integrating it into process automation, factory control, or safety systems, the SAI143-H33 provides a stable, high-performance solution.