Description
Product Description
Overview
The AAI143-H00/A4S00 from Yokogawa is a high-precision analog input module designed for industrial control systems requiring reliable 16-channel isolated signal acquisition. It supports both 2-wire and 4-wire transmitters and is compatible with HART communication for advanced digital diagnostics. This module ensures accurate current measurement, robust isolation, and stable operation across varying environmental conditions.
Key Features and Specifications
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Model: AAI143-H00/A4S00
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Manufacturer: Yokogawa
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Product Type: Analog Input Module
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Number of Channels: 16 isolated inputs
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Input Signal: 4 to 20 mA
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Maximum Input Current: 24 mA
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Input Resistance:
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Withstanding Voltage: 1500 V AC between input and system for 1 minute
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Measurement Accuracy: ±16 microamperes
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Data Update Period: 10 milliseconds
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Transmitter Power Supply: 19.0 to 25.5 V DC (output current limit 25 mA)
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Transmitter Wiring Selection: Channel-specific 2-wire or 4-wire setting via pin configuration
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Temperature Drift: ±16 microamperes per 10 degree Celsius change
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Maximum Current Consumption: 230 mA at 5 V DC, 540 mA at 24 V DC
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External Communication Options: Pressure clamp terminals, MIL connector cable, or dedicated KS1 cable
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Digital Communication Protocol: HART (H version)
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Weight: 0.3 kg
Applications
This module is ideal for process control, automation, and monitoring systems in industries such as chemical, oil and gas, water treatment, and power generation. Its isolated 16-channel input allows integration with multiple transmitters while maintaining signal integrity.
FAQ
Q: Can this module support both 2-wire and 4-wire transmitters?
A: Yes, each channel can be individually configured for 2-wire or 4-wire transmitters.
Q: Is the module compatible with HART devices?
A: The H version (AAI143-H00) supports HART digital communication for transmitter diagnostics and configuration.
Q: What is the maximum allowable input current?
A: The module can handle up to 24 mA per input channel.
Q: How isolated are the input channels?
A: Each of the 16 channels is electrically isolated to 1500 V AC from the system for safe operation.
