ProSafe-RS Safety Input | Yokogawa SAI143-S03/K4A00

Product Description

Safety-Instrumented Signal Acquisition

The Yokogawa SAI143-S03/K4A00 is a high-integrity Analog Input Module designed specifically for the ProSafe-RS Safety Instrumented System (SIS). As a critical component of the Field Control Station (FCS), this module provides 16 channels of fully isolated analog inputs, facilitating the precise monitoring of process variables such as pressure, temperature, and flow. The SAI143-S03 is engineered to meet stringent functional safety requirements (up to SIL3), providing the deterministic data acquisition necessary for emergency shutdown (ESD) and fire and gas (F&G) applications.

Reliability with K4A00 Terminal Interface

This bundle includes the SAI143-S03 module paired with the K4A00 terminal block assembly. The K4A00 provides a robust, detachable physical interface for field wiring, allowing for high-density industrial cabling with secure connections. The module supports dual-redundancy, permitting two units to operate in a hot-standby pair to ensure zero loss of process visibility. With 16-bit A/D resolution and high-grade galvanic isolation, the SAI143-S03/K4A00 maintains signal precision even in environments with high electromagnetic interference, typical of offshore platforms and petrochemical refineries.

Detailed Technical Specifications

The technical parameters below outline the performance characteristics of the SAI143-S03/K4A00.