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Product Overview
The Yokogawa AAI143-H53/A4D00 is a 16-channel analog input module designed for high-reliability industrial applications. It accepts 4–20 mA current signals and offers channel-to-system isolation for enhanced safety and accuracy. This model includes HART communication and is paired with a dual pressure clamp terminal block (A4D00), making it suitable for field instrumentation integration in process automation systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | AAI143-H53/A4D00 |
| Input Signal | 4 to 20 mA DC |
| Number of Input Channels | 16 (Isolated) |
| HART Communication | Supported |
| Input Resistance (Power ON) | 270–350 Ω (depending on current) |
| Input Resistance (Power OFF) | ≥500 kΩ |
| Accuracy | ±16 µA |
| Transmitter Power Supply | 19.0–25.5 V DC (max. 25 mA output) |
| Temperature Drift | ±16 µA / 10°C |
| Withstanding Voltage | 1500 V AC (1 min between input and system) |
| Data Update Period | 10 ms |
| Maximum Current Consumption | 230 mA (5 V DC), 540 mA (24 V DC) |
| External Connection | Dual pressure clamp terminal (A4D00) |
| Dimensions | 107.5 × 32.8 × 130 mm |
| Weight | 0.3 kg |
Applications
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Distributed Control Systems (DCS)
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Process automation in oil & gas, chemicals, power, and water treatment
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Signal acquisition from field devices such as pressure, temperature, and flow transmitters
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Intrinsically safe environments (with isolation barriers)
Key Advantages
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Channel Isolation: Prevents interference and enhances signal integrity.
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HART Compatibility: Supports advanced diagnostics and configuration over existing wiring.
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Fast Response: 10 ms update cycle ensures accurate real-time data acquisition.
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Robust Design: Withstands industrial noise and environmental variations.
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Flexible Installation: Dual terminal block and KS cable options simplify wiring.
Frequently Asked Questions (FAQ)
Q1: What type of signal does the AAI143-H53/A4D00 support?
A1: It supports 4–20 mA DC analog input signals.
Q2: Is HART communication supported?
A2: Yes, it supports HART communication for diagnostics and device configuration.
Q3: Are the input channels isolated?
A3: Yes, all 16 channels are isolated from the system.
Q4: Can this module be used in hazardous areas?
A4: Yes, but an isolation barrier must be used; Zener barriers are not permitted.
Q5: What is the power consumption of the module?
A5: It consumes up to 230 mA at 5 V DC and 540 mA at 24 V DC.
Q6: How often does the module update its data?
A6: It updates input data every 10 milliseconds.
Q7: What is the terminal block type provided?
A7: This model uses a dual pressure clamp terminal block (A4D00).
Q8: Can it be used with both 2-wire and 4-wire transmitters?
A8: Yes, configuration per channel allows support for both types.
Q9: What is the voltage level for transmitter power supply?
A9: It ranges from 19.0 V to 25.5 V DC.
Q10: What protection is required for intrinsically safe applications?
A10: Use an appropriate isolation barrier; Zener barriers are not allowed.
Related Models (Same Series)
| Model | Signal Type | Channels | Isolation | HART Support | Dimensions (mm) | Weight |
|---|---|---|---|---|---|---|
| AAI141-H | 4–20 mA | 16 | No | Yes | 107.5 × 32.8 × 130 | 0.2 kg |
| AAB141-H | 1–5 V / 4–20 mA | 16 | No | Yes | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI841-H | 4–20 mA In/Out | 8/8 | No | Yes | 107.5 × 32.8 × 130 | 0.3 kg |
| AAB842-H | 1–5 V/4–20 mA In, 4–20 mA Out | 8/8 | No | Yes | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI135-H | 4–20 mA | 8 | Yes (per channel) | Yes | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI543-H | 4–20 mA (Output) | 16 | Yes | Yes | 107.5 × 32.8 × 130 | 0.4 kg |
Popular Yokogawa Models
| Model | Description | Channels | Type | Isolation | Dimensions (mm) | Weight |
|---|---|---|---|---|---|---|
| AAI141-S | Analog Input Module (4–20 mA) | 16 | Input | No | 107.5 × 32.8 × 130 | 0.2 kg |
| AAI543-S | Analog Output Module (4–20 mA) | 16 | Output | Yes | 107.5 × 32.8 × 130 | 0.4 kg |
| AAV144-S | Analog Input Module (-10 to +10 V) | 16 | Input | Yes | 107.5 × 32.8 × 130 | 0.2 kg |
| AAI135-S | Analog Input Module (4–20 mA) | 8 | Input | Yes | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI835-H | Analog I/O Module (4 In/4 Out, 4–20 mA) | 4/4 | I/O | Yes | 107.5 × 32.8 × 130 | 0.3 kg |
| AAR181-S | RTD Input Module | 12 | Input | Yes | 107.5 × 32.8 × 130 | 0.2 kg |
