ProSafe-RS Analog Input | Yokogawa ProSafe-RS SAI143-S53/A4S00

Product Description

Safety-Instrumented Analog Signal Acquisition

The Yokogawa SAI143-S53/A4S00 is a high-reliability Analog Input Module specifically designed for the ProSafe-RS Safety Instrumented System (SIS). This module is engineered to interface with critical field sensors and transmitters, providing 16 channels of isolated analog signal acquisition. The SAI143-S53 is a core component for safety loops, ensuring that process variables such as pressure, temperature, and flow are monitored with the high degree of integrity required for functional safety applications.

Fault Tolerance and Precise Measurement

This "S53" bundle includes the SAI143 module factory-paired with the A4S00 terminal block assembly, facilitating a secure and simplified wiring interface. To meet the rigorous demands of safety standards (up to SIL3), the module supports dual-redundant configurations, allowing for bumpless failover without loss of signal. With a fast 40 ms data update frequency and a rated accuracy of ±16 µA, the SAI143-S53/A4S00 provides the deterministic performance necessary for emergency shutdown (ESD) and fire and gas (F&G) systems in hazardous industrial environments.

Detailed Technical Specifications

The following table summarizes the key performance parameters for the SAI143-S53/A4S00.