Product Description

The SAI143-H03 is a high-integrity analog input module engineered for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). Designed to meet SIL 3 safety standards, this module provides 16 isolated 4–20 mA channels for reliable safety loop monitoring. The H03 variant features HART digital communication and an ISA Standard G3 conformal coating, ensuring durable performance even in corrosive and harsh industrial environments.

Key Features

• SIS Ready: Built for safety-critical applications such as Emergency Shutdown Systems (ESD) and Fire & Gas (F&G) loops

• HART Digital Integration: Simultaneously transmits analog signals and device diagnostics from smart transmitters

• G3 Environmental Protection: Corrosion-resistant coating for operation in harsh environments (-20°C to +70°C)

• Galvanic Isolation: 16 fully isolated channels prevent ground loops and protect the safety system backplane

• Redundancy Support: Compatible with dual-redundant configurations for uninterrupted safety loop operation

Technical Specifications

Industrial Applications

The SAI143-H03 is essential for safety-critical monitoring in:

• Offshore oil and gas platforms

• Chemical refineries

• Nuclear power facilities

• Wastewater treatment and corrosive petrochemical environments

It monitors critical sensors such as pressure, level, and temperature, ensuring that safety loops function reliably and comply with SIL 3 requirements.

Technical FAQ

Q: What is the difference between AAI143 and SAI143?
A: Both are 16-channel analog input modules, but the AAI143 is for standard control in CENTUM VP systems, whereas the SAI143 is safety-certified for ProSafe-RS, meeting SIL 3 standards.

Q: Can I use this module in a redundant configuration?
A: Yes. The SAI143-H03 supports dual-redundant configurations, ensuring safety loops remain operational even if one module fails.