Yokogawa AAI143-S50/ATA4S-00 Analog Input Module

Overview

The Yokogawa AAI143-S50/ATA4S-00 is a 16-channel isolated analog input module. It integrates with CENTUM VP and ProSafe-RS control systems. The module receives 4–20 mA DC signals from field transmitters and sensors. Each channel isolates signals, ensuring high accuracy and noise immunity. Moreover, it uses the ATA4S-00 spring clamp terminal block, enabling secure, tool-free wiring and improving installation efficiency.

Technical Specifications

• Model: AAI143-S50/ATA4S-00
• Type: Analog Input Module (Isolated Current Input)
• Number of Channels: 16 isolated analog input channels
• Input Signal Type: 4–20 mA DC
• Allowable Input Current: 24 mA
• Input Resistance (Power ON): 270 Ω (at 20 mA) to 350 Ω (at 4 mA)
• Input Resistance (Power OFF): ≥500 kΩ
• Accuracy: ±16 μA typical
• Update Rate/Data Update Period: 10 ms
• Isolation: Channel-to-channel and channel-to-system
• Withstanding Voltage (Input to System): 1500 V AC for 1 minute
• Withstanding Voltage (Dedicated Cable): 500 V AC for 1 minute
• HART Communication: Supported with compatible firmware
• Power Supply Requirement: 24 V DC field power
• Transmitter Supply Voltage: 19.0–25.5 V
• Transmitter Setting: Configurable for 2-wire or 4-wire per channel
• Terminal Block Type: ATA4S-00 (spring clamp)
• Mounting Compatibility: ESB bus node units (e.g., ANB10S, ANB10D)
• Weight: 0.3 kg
• Operating Temperature Range: 0 to 60 °C