Yokogawa|AAI135-S03| Analog Input Module

Description

Features

• 8 isolated input channels for 4–20 mA analog signals
• Module-level isolation between field, system, and channels
• Supports dual-redundant configuration for high reliability
• Multiple connection options: pressure clamp terminals, MIL cables, and dedicated KS1 cables

Technical Specifications

Module Overview

• Model: AAI135-S03
• Channels: 8 isolated input channels
• Signal Range: 4 to 20 mA (current input)
• Allowable Input Current: 25 mA

Electrical Specifications

• Withstanding Voltage:
  • Input to system: 500 V AC for 1 minute
  • Between input channels: 500 V AC for 1 minute
• Input Resistance:
  • Power ON: 290 Ω (at 20 mA) to 450 Ω (at 4 mA)
  • Power OFF: ≥500 kΩ
• Accuracy: ±16 µA
• Data Update Period: 10 ms
• Transmitter Power Supply: 15.0–29.3 V (varies with input current)
• Temperature Drift: ±16 µA/10 °C
• Power Consumption: 360 mA (5 V DC), 450 mA (24 V DC)

Mechanical & Connectivity

• Weight: 0.3 kg
• Connections:
  • Pressure clamp terminals
  • MIL connector cable
  • Dedicated KS1 cable (with ATI3A/ATK4A adapters)
• Terminal Blocks:
  • Single: ATI3S, ATK4A
  • Dual-redundant: ATI3D, AEA4D