Yokogawa SAI143-H53 Analog Input Module

Overview

The Yokogawa SAI143-H53 is an analog input module for the Yokogawa ProSafe-RS Safety Instrumented System (SIS). It provides 16 isolated analog input channels designed for 4 to 20 mA current input signals. This module offers high accuracy and reliability for safety-critical applications. Additionally, it supports HART communication, enabling device diagnostics and configuration.

Technical Specifications

• Number of Input Channels: 16, isolated
• Input Signal: 4 to 20 mA
• Allowable Input Current: 0 to 25 mA
• Withstanding Voltage: 1.5 kV AC (1 minute between input signal and system)
• Data Update Frequency: 40 ms
• Transmitter Power Supply: 16.15 V minimum (at 20 mA), 26.4 V maximum (at 0 mA)
• 2-wire or 4-wire Transmitter Setting: Individual channel setting, adjustable via setting pins
• Temperature Drift: ±16 μA per 10 °C
• Maximum Current Consumption: 320 mA (5 V DC), 550 mA (24 V DC)
• External Connection: Pressure clamp terminal, MIL connector cable, dedicated cable (KS1)
• HART Communication: Supported

Model and Suffix Codes

• Model: SAI143 – Analog Input Module (16-channel, isolated, 4 to 20 mA)
• Suffix Codes:
  • H: With HART communication [Release: R1.02.00]
  • 5: For pressure clamp terminal block or MIL cable without explosion protection
  • 3: Meets ISA Standard G3 and temperature range (-20 to 70°C)