YOKOGAWA SAI143-H53/A4D00 Analog Input Module

Product Overview

The YOKOGAWA SAI143-H53/A4D00 is an advanced 16-channel Analog Input Module designed specifically for Yokogawa’s ProSafe-RS safety instrumented system architecture. Equipped with built-in HART communication functionality, this module allows seamless integration with Plant Resource Manager (PRM) for field device management and diagnostics without compromising safety loops. The model includes a dual-redundant pressure clamp terminal block (STA4D-00), making it an optimal choice for high-availability safety applications.

Key Features & Highlights

• ProSafe-RS Safety Integration: Built explicitly for high-integrity safety instrumented systems, ensuring reliable signal processing in emergency shutdown and critical control loops.

• HART Communication Support: Features built-in HART protocol capabilities, enabling concurrent communication with field devices and asset management platforms.

• 16-Channel Capacity: Manages up to 16 individual current input channels with full module isolation, ensuring high channel density and interference protection.

• Dual-Redundant Terminal Block: Supplied with a dual-redundant pressure clamp terminal block (STA4D-00) for enhanced system availability and fault-tolerant wiring.

• Environmental Hardening: Built with ISA Standard G3 coating and extended temperature tolerance (-20°C to +70°C) for harsh industrial atmospheres.

• Transmitter Power Supply: Features integrated individual channel power supply functions for 2-wire field transmitters, simplifying external wiring requirements.

Functional Architecture

The SAI143-H53/A4D00 operates on a standard 4 to 20 mA input range with a permissible input range up to 25 mA. It features a fast data update frequency of 40 ms and robust withstand voltage protection (1.5 kV AC between input signal and system), ensuring stable performance under fluctuating industrial conditions.

Application

• Oil & Gas Upstream & Downstream: Emergency shutdown systems (ESD), fire & gas monitoring, and offshore platform safety loops.

• Petrochemical & Chemical Plants: High-integrity pressure, flow, and level safety interlocking systems.

• Power Generation Facilities: Boiler safety interlocks, turbine protection, and critical analog signal acquisition.

• Water & Wastewater Treatment: High-reliability dosing and critical process automation safety networks.

Technical Specifications

Item / Feature	Specification Details
Model & Suffix Code	SAI143-H53/A4D00
Module Type	Analog Input Module (Current Input with HART)
Number of Input Channels	16 channels, module isolation
Rated Input Range	4 to 20 mA
Permissible Input Range	0 to 25 mA
System Compatibility	ProSafe-RS Safety Instrumented System / FIO
Terminal Block Included	Dual-redundant pressure clamp terminal block (STA4D-00)
Coating & Environment	ISA Standard G3 compliant, Operating Temperature: -20°C to +70°C
Data Update Frequency	40 ms
Withstand Voltage	1.5 kV AC between input signal and system for 1 minute
Current Consumption	5 V system: 320 mA, 24 V system: 550 mA
Weight	Approx. 0.39 kg (with signal cable interface adapter)
External Connection	Dual-redundant pressure clamp terminal block

FAQ

Q1: What does the suffix code H53/A4D00 indicate on the SAI143 module?

A: The -H indicates built-in HART communication, 5 denotes standard non-explosion protection for pressure clamp terminals, 3 indicates ISA Standard G3 coating with extended temperature support, and /A4D00 specifies the included dual-redundant pressure clamp terminal block (STA4D-00).

Q2: Can the SAI143-H53 be configured for dual-redundant operation?

A: Yes, this specific package includes the dual-redundant pressure clamp terminal block (/A4D00). For a complete dual-redundant setup, an additional module with matching specifications should be ordered.

Q3: Does the HART communication interfere with safety functions?

A: No, the HART communication functions on ProSafe-RS are completely interference-free and designed with separation to ensure zero impact on safety instrumented functions.

Q4: What is the channel capacity of this analog input module?

A: The SAI143 features 16 isolated input channels supporting standard 4 to 20 mA current signals from field instrumentation.

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