Product Short Description
Product Name: Yokogawa AAI143-S00 Isolated Analog Input Module.
Product Overview: The AAI143-S00 is an industrial process 4-20 mA signal isolated acquisition module. It features complete break, short-circuit, and over-range diagnostic functions for real-time fault reporting. This module is a standard AI module for process industries including petrochemical, power, and metallurgy DCS systems. The “S00” suffix denotes standard type with basic configuration, suitable for non-harsh environments.
Description
Technical Specifications:
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Manufacturer: Yokogawa
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Product Type: Isolated Analog Input Module (AI)
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Compatible Systems: CENTUM VP, CENTUM CS3000
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Input Channels: 16 channels, fully isolated
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Input Signal: 4-20 mA DC (standard)
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Allowable Input: Maximum 24 mA DC
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Isolation Withstanding Voltage: Channel-to-System: 1500 V AC (1 minute)
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Input Impedance (Powered): 270-350 Ω
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Input Impedance (Unpowered): ≥500 kΩ
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A/D Resolution: 16-bit
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Measurement Accuracy: ±16 µA (±0.08% FS)
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Data Refresh: 10 ms per channel
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Transmitter Power Supply: 19.0-25.5 V DC (current limit 25 mA)
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Supply Voltage: 24 V DC (system backplane power)
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Power Consumption: 5 V DC: 230 mA; 24 V DC: 540 mA
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Operating Temperature: 0°C to 55°C
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Storage Temperature: -20°C to 70°C
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Humidity: 5%-95% RH (non-condensing)
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Dimensions: Approximately 30 x 180 x 140 mm
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Weight: Approximately 0.3 kg
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Mounting: DCS rack slot
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Certifications: CE, UL, CSA
Key Features:
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Full isolation anti-interference: 16 channels independent optical isolation, 1500 V AC withstand
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Ultra-high precision measurement: 16-bit A/D conversion, ±16 µA accuracy, 10 ms refresh
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Flexible power distribution: Built-in transmitter power supply, supports 2-wire/4-wire instruments, per-channel independent configuration
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Complete self-diagnostics: Real-time monitoring of signal status, identifying break/short/over-range faults
Application: Petrochemical, power, metallurgy, and other process industry DCS systems requiring high-precision analog signal acquisition.
Installation & Usage Notes: Install in standard DCS rack slots. The module supports dual redundant configuration. Built-in transmitter power simplifies field wiring. Real-time diagnostics actively report faults to the system, eliminating manual point-by-point troubleshooting. Ensure ambient temperature stays within 0°C to 55°C for optimal performance.
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