وحدة إدخال تناظرية Yokogawa AAI143-S50/A4S10 جديدة تمامًا

Overview

The Yokogawa AAI143-S50/A4S10 is a 16-channel isolated analog input module. It operates with CENTUM VP and CS 3000 distributed control systems. The module receives 4–20 mA signals from field instruments such as pressure transmitters, temperature sensors, and flow meters. It provides channel-to-channel and channel-to-system isolation for safe and reliable operation. Additionally, it supports HART communication for remote diagnostics and device configuration.

Technical Specifications

• Model: AAI143-S50/A4S10
• Type: Analog Input Module (Isolated Current Input)
• Channels: 16 isolated input channels
• Input Signal: 4 to 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
• Data Update Period: 10 ms
• Transmitter Power Supply: 19–25.5 V; output current limit 25 mA
• 2-wire/4-wire Transmitter: Selectable per channel
• Temperature Drift: ±16 μA per 10°C
• Withstanding Voltage: 1500 V AC between input and system for 1 min
• Maximum Current Consumption: 230 mA (5 V DC), 540 mA (24 V DC)
• External Connection: Pressure clamp terminal block with surge absorber
• HART Communication: Available with -H suffix
• Isolation: Channel-to-channel and channel-to-system
• Redundancy: Supports dual-redundant configurations
• Noise Immunity: High, suitable for harsh environments
• Weight: 0.3 kg