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- Yokogawa
- AAI143-H03/K4A00
- Analog Input Module
- Japan
- 107.5 × 94 × 32.8 mm
- 0.3kg
- Xiamen, China
- New & In Stock
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Product Overview: AAI143‑H03/K4A00
The AAI143‑H03/K4A00 is a high-performance analog input module designed for Distributed Control Systems (DCS). It supports 16 fully isolated 4–20 mA input channels, includes integrated HART digital communication (denoted by “H”), and operates across extended temperatures thanks to the G3 rating (“03”). The /K4A00 option provides compatibility with a KS cable interface adapter for easy connection to terminal boards, enhancing modular installation flexibility.
Technical Specifications
| Parameter | Details |
|---|---|
| Model Number | AAI143‑H03/K4A00 |
| Input Channels | 16 (fully isolated) |
| Input Signal | 4–20 mA |
| Withstand Voltage | 1,500 VAC (input to system) for 1 minute |
| Input Resistance (ON) | 270 Ω (20 mA) to 350 Ω (4 mA) |
| Input Resistance (OFF) | ≥ 500 kΩ |
| Accuracy | ±16 µA |
| Data Update Period | ~10 ms per channel |
| Transmitter Supply Voltage | ≥ 19.0 V @ 20 mA; ≤ 25.5 V @ 0 mA (max 25 mA) |
| 2‑/4‑Wire Configurable | Yes—switchable per channel |
| Ambient Temperature Drift | ±16 µA per 10 °C |
| Power Consumption | ~230 mA @ 5 V DC; ~540 mA @ 24 V DC |
| Communication Protocol | HART (digital communication) |
| Temperature Range | –20 °C to +70 °C (G3 option) |
| Weight | 0.30 kg |
| External Communication | KS cable interface adapter connection (requires ATK4A‑00) |
Applications
Used in industrial control applications that require high-density analog signal capture with digital communication capability. Suitable for sectors such as petrochemical, power generation, and manufacturing. The extended temperature rating (−20 °C to +70 °C) enables reliable operation in control cabinets located in fluctuating ambient environments. The KS adapter /K4A00 design simplifies T‑block wiring in compact or modular installations.
Key Advantages
-
High Channel Count in Compact Format – 16 isolated analog inputs with HART support.
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Extended Temperature Reliability – Operates reliably from –20 °C to +70 °C.
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Robust Signal Integrity – 1.5 kV isolation prevents electrical interference and ground loops.
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Flexible Transmitter Wiring – Configurable 2‑wire or 4‑wire per channel.
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HART Capability – Enables field diagnostics and calibration without extra hardware.
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Modular Installation – KS interface allows easy integration with terminal blocks.
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Efficient Update Speed – ~10 ms per channel ensures responsive data for control loops.
Related Models (Same Series or Similar)
| Model | Description | Key Feature | Weight (kg) |
|---|---|---|---|
| AAI143‑H03/K4A00 | Current model with KS adapter | G3 + HART + modular KS connection | 0.30 |
| AAI143‑H00/K4A00 | Baseline HART analog input, standard temp | Same KS interface without G3 temperature | 0.30 |
| AAI143‑H03/A4S00 | HART + wide temp + pressure clamp block | Alternative wiring block for terminals | 0.30 |
| AAI143‑H53/K4A00 | HART + G3 but no surge protection | G3 plus KS interface | 0.30 |
| AAI143‑H50/K4A00 | HART input, standard variant, KS adapter | No G3 temperature rating | 0.30 |
Popular Models from the Same Brand
| Model | Function | Typical Application | Weight (kg) |
|---|---|---|---|
| AAI143‑H03/K4A00 | HART + G3 analog input module | Rugged, diagnostic field input | 0.30 |
| AAI543‑H50/A4S00 | HART analog output module | Smart outputs in DCS | ~0.30 |
| AAI143‑H00/A4S00 | HART analog input, standard temp | Compact IO block with analog clamp | 0.30 |
| AAI143‑S53/A4S10 | Wide temp input, surge block | Analog input in harsh environments | 0.30 |
| AAI141‑H00/K4A00 | 16‑channel non-isolated input | Entry-level analog IO with HART | 0.30 |
Frequently Asked Questions (FAQ)
Q1: What do the suffix codes “-H03” and “/K4A00” indicate?
A1: “-H03” denotes HART enabled plus G3 rating (wide temp). “/K4A00” adds a KS cable interface adapter for terminal block compatibility.
Q2: How many channels does the module support and are they isolated?
A2: It supports 16 fully isolated analog input channels.
Q3: Does it support HART communication on every channel?
A3: Yes, HART is fully integrated across all input channels.
Q4: What temperature range is supported?
A4: The G3 option allows operation from –20 °C to +70 °C.
Q5: What isolation strength does the module provide?
A5: It withstands 1,500 VAC between input and system for one minute.
Q6: How accurate are the input measurements?
A6: Accuracy is ±16 µA.
Q7: How quickly does it update channel readings?
A7: Approximately every 10 ms per channel.
Q8: Can transmitter wiring be configured per channel?
A8: Yes—each channel supports either 2‑wire or 4‑wire transmitters via pin setting.
Q9: What is the module’s weight?
A9: It weighs approximately 0.30 kg.
Q10: What connection interface does it use?
A10: It uses a KS cable interface adapter compatible with AEA4D terminal boards.
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