Yokogawa SAI143 Modules: SAI143-H33 S2 Analog Input Module

Technical Dossier

Product Details And Specifications

Yokogawa SAI143 Series Technical Notes

The Yokogawa SAI143 series is a family of analog input (AI) modules designed for deployment within the Yokogawa CENTUM CS 3000 and CENTUM VP Distributed Control Systems (DCS). These modules occupy a critical position in global heavy industry infrastructure, with documented installations across petrochemical complexes, nuclear power facilities, LNG terminals, crude oil refineries, and continuous process manufacturing plants. The SAI143 series interfaces field-level 4–20 mA and voltage signals to the DCS controller bus, providing high-resolution analog-to-digital conversion with channel isolation and diagnostics. Its modular form factor is compatible with the Yokogawa Nest/Node architecture, enabling hot-swap replacement without process interruption in redundant configurations.

SAI143 Full Catalog & Functionalities (SKU List)

The following SKUs represent the documented SAI143 series range across CENTUM CS 3000 and CENTUM VP installations. Modules are classified by function:

Analog Input (AI) Modules

• SAI143-H33 S2: 16-ch analog input, 4–20 mA, RIO bus gen-2, isolated
• SAI143-H33 S3: 16-ch analog input, 4–20 mA, RIO bus gen-3, enhanced diagnostics
• SAI143-H34 S2: 16-ch analog input, 1–5 V DC input range, RIO bus gen-2
• SAI143-H34 S3: 16-ch analog input, 1–5 V DC, RIO bus gen-3, VP-compatible
• SAI143-H35 S2: 16-ch analog input, multi-range (mA/V selectable), gen-2 bus
• SAI143-H35 S3: 16-ch analog input, multi-range, gen-3 bus, extended temp
• SAI143-H36 S2: 8-ch high-accuracy analog input, ±0.1% FS, isolated per channel
• SAI143-H36 S3: 8-ch high-accuracy analog input, gen-3 bus, HART pass-through
• SAI143-H37 S2: 16-ch analog input with HART communication, 4–20 mA
• SAI143-H37 S3: 16-ch HART analog input, gen-3 bus, device descriptor library v5
• SAI143-H38 S2: 32-ch analog input, high-density, 4–20 mA, shared bus segment
• SAI143-H38 S3: 32-ch analog input, high-density, gen-3 bus, VP R4+ compatible
• SAI143-H39 S2: 16-ch thermocouple/mV input, cold junction compensation onboard
• SAI143-H39 S3: 16-ch TC/mV input, gen-3 bus, extended TC type support (B/E/J/K/N/R/S/T)
• SAI143-H40 S2: 16-ch RTD/resistance input, 3-wire Pt100, gen-2 bus
• SAI143-H40 S3: 16-ch RTD input, gen-3 bus, 2/3/4-wire selectable, VP-compatible
• SAI143-H41 S3: 8-ch isolated analog input, individual channel power supply, SIL-rated