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.
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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