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Yokogawa SAI143-H03 16-Channel Isolated Analog Input Module

The SAI143-H03 (Model: SAI143) is a high-performance analog input module specifically engineered for the Yokogawa CENTUM VP and CS 3000 Distributed Control Systems (DCS). As a vital component of the ProSafe-RS safety instrumented system and Field I/O (FIO) subsystem, the SAI143-H03 (Order Number: SAI143-H03) provides 16 isolated channels for the high-integrity acquisition of 4 to 20 mA signals. This module is designed to interface with critical process transmitters measuring pressure, flow, temperature, and level in environments where system uptime and functional safety are paramount.

The SAI143-H03 (Part Number: SAI143-H03) features the "H03" revision, which denotes enhanced hardware stability and optimized compatibility with modern Vnet/IP control station architectures. Each channel is galvanically isolated to prevent ground loops and shield the system backplane from field-side electrical noise. With integrated support for HART communication pass-through, the SAI143-H03 (Model: SAI143-H03) allows for advanced asset management and remote diagnostics, ensuring long-term Expertise and Trustworthiness (E-E-A-T) in sectors such as petrochemical refining, offshore oil & gas, and power generation.

Detailed Technical Specifications

The SAI143-H03 (Order Number: SAI143-H03) delivers precise data acquisition with the following technical parameters:

Feature Details
Manufacturer Yokogawa Electric Corporation
Model Number SAI143-H03
Product Type Analog Input Module (HART Compatible)
Number of Channels 16, isolated
Input Signal 4 to 20 mA DC
Input Resistance 250 Ω (Power ON)
Accuracy ±0.1% of full scale
Data Update Period 10 ms
Isolation Voltage 1500 V AC between input and system (1 minute)
Redundancy Supports Dual-Redundant configuration
Current Consumption 320 mA (5 V DC), 150 mA (24 V DC)
Operating Temperature 0°C to +60°C
Mounting Rack-mounted (FIO Node)
Dimensions (W x H x D) 32.8 × 107.5 × 130 mm
Compliance CE, IEC 61131, SIL 3 capable (in ProSafe-RS)

 

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