Description

The Yokogawa SAI143-S33 provides high-accuracy data collection for 16 separate analog channels. This module operates primarily within a 1-23 mA range for standard process signals. However, the hardware supports a wider permissible input spectrum from 0 to 25 mA. It maintains a rated accuracy of ±16 µA to ensure precise monitoring of critical variables. Furthermore, the unit features 1.5 kV AC electrical isolation to protect system components from field interference. This makes the module ideal for high-performance industrial automation environments.

Power Management and Sensor Support

This analog input module includes an integrated power supply for field transmitters. It delivers a stable voltage between 16.15V and 26.4V at each channel. Consequently, the module supports both 2-wire and 4-wire instrument configurations simultaneously. Users can configure individual channels to meet specific wiring standards within a single rack. The system also includes a remote power reset function. This capability proves essential for fire and gas detection applications requiring sensor re-initialization.

Technical Performance and Durability

The SAI143-S33 ensures rapid data processing with a consistent 40 ms refresh rate. Minimal temperature drift of ±16 µA per 10°C variation guarantees stability in fluctuating climates. Additionally, the module offers multiple connectivity options such as pressure clamp terminals and MIL cables. Its compact design facilitates easy integration into standard DCS or safety instrumented systems. The rugged construction withstands the vibrations and noise typical of heavy industrial facilities.

Technical Specifications