Product Description

The SAI143-S63/A4S00 is a safety-certified high-reliability analog input module designed for the Yokogawa ProSafe-RS platform.

This module provides 16 channels of isolated 4–20 mA DC signal acquisition, enabling accurate monitoring of safety-critical field transmitters used in hazardous industrial environments.

As a S63 standard-type variant, the module is optimized for:

• Extended operating temperature ranges

• Corrosive atmosphere resistance

• Long-term reliability in harsh process environments

The module is fully compliant with ISA-S71.04 G3 environmental corrosion standards, allowing operation in atmospheres containing gases such as hydrogen sulfide and chlorine.

Key reliability features include:

• Individual channel isolation

• Protection against electrical surges and ground loops

• High-integrity safety data acquisition for SIL3 safety loops

The SAI143-S63/A4S00 is widely used in Emergency Shutdown (ESD) and Fire & Gas (F&G) safety architectures requiring deterministic signal processing.

Technical Specifications

Industrial Application

The SAI143-S63/A4S00 is commonly deployed in:

• Petrochemical refineries

• Offshore oil and gas platforms

• Chemical processing plants

• Power generation facilities

It is typically installed in:

• Field auxiliary rooms

• Local instrument cabinets

• Safety control rooms with limited environmental conditioning

Technical FAQ

What is the significance of the G3 rating?
The G3 rating follows ISA corrosion classification standards and indicates protection against corrosive industrial gases such as hydrogen sulfide (H₂S) and chlorine (Cl₂), improving long-term electronic reliability.

Does the SAI143-S63/A4S00 support HART communication?
No. This is a standard analog input module focused on reliable 4–20 mA signal acquisition. For HART-based diagnostics and digital field device integration, the SAI143-H series variants should be used.