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- Yokogawa
- AAI841-H00/K4A00
- Analog Input/Output (I/O) Module
- Japan
- 107.5 mm × 32.8 mm × 130 mm
- 0.3kg
- Xiamen, China
- New & In Stock
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Product Profile: AAI841‑H00/K4A00
Brand & Series
Brand: Renowned manufacturer specializing in industrial measurement and control devices (name omitted as requested)
Series: AAI841 Analog I/O Module Series — modules designed for combined analog input/output functionality with high reliability and accuracy, optimized for control system integration.
Product Description
The AAI841-H00/K4A00 is an 8-input / 8-output analog I/O module designed for precise and reliable signal acquisition and control in distributed control systems (DCS) and programmable logic controllers (PLC). It supports current input and output signals of 4–20 mA and voltage input signals of 1–5 V. This model uses a K4A00-type terminal wiring interface, which enables easy installation and connection.
The module operates within a standard industrial temperature range and offers stable performance, low noise, and excellent linearity, making it suitable for critical process control environments.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Model | AAI841‑H00/K4A00 |
| Dimensions (W × D × H) | 107.5 mm × 32.8 mm × 130 mm |
| Weight (kg) | 0.30 kg |
| Channels | 8 Analog inputs + 8 Analog outputs |
| Input Signal Types | 4–20 mA DC, 1–5 V DC |
| Output Signal Type | 4–20 mA DC |
| Input Accuracy | ±16 µA |
| Output Accuracy | ±48 µA |
| Refresh Rate | 10 ms |
| Response Time | Input: ~100 ms; Output: ~40 ms |
| Transmitter Power Supply | 14.8–26.4 V DC (dependent on transmitter current) |
| Input Resistance | 400–1000 Ω (at 20–4 mA) |
| Circuit Open Detection | < 0.65 mA |
| Temperature Drift | ±0.1% per 10 °C |
| Communication | Analog (no HART overlay) |
| Wiring Interface | K4A00 terminal block |
| Operating Temperature | 0 °C to +60 °C |
Applications
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Data acquisition and control for industrial process automation systems.
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Integration into distributed control systems (DCS) and programmable logic controllers (PLC).
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Monitoring and controlling analog field instruments such as transmitters and actuators.
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Process environments requiring stable, low-noise analog signal processing.
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Industrial setups requiring compact and reliable analog I/O modules.
Advantages
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Dual functionality: Eight analog inputs and eight outputs in a single compact module.
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Accurate and stable: High precision with ±16 µA input and ±48 µA output accuracy.
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Fast response: Refresh rate of 10 ms ensures timely data for control loops.
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Easy wiring: K4A00 terminal interface simplifies installation and maintenance.
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Reliable operation: Designed for standard industrial temperature range with low temperature drift.
Related / Same Series Models
| Model | Channels | Communication | Special Features | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| AAI841‑H00/K4A00 | 8 in / 8 out | Analog only | Standard wiring terminal (K4A00) | 107.5 × 32.8 × 130 | 0.30 |
| AAI841‑H50/K4A00 | 8 in / 8 out | HART overlay | HART-enabled | 107.5 × 32.8 × 130 | 0.30 |
| AAI841‑S00/K4A00 | 8 in / 8 out | Analog only | Basic analog model | 107.5 × 32.8 × 130 | 0.30 |
| AAI841‑H53/K4A00 | 8 in / 8 out | HART overlay | Wide temperature range (-20 to 70 °C) | 107.5 × 32.8 × 130 | 0.30 |
| AAI841‑S50/K4A00 | 8 in / 8 out | Analog only | Standard temperature | 107.5 × 32.8 × 130 | 0.30 |
Popular Models from Same Brand
| Model | Function | Channels | Features | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|
| AAI543‑H00 | Analog output module | 16 out | HART support | 108 × 30 × 130 | 0.32 |
| AAI135‑S00/K4A00 | Analog input module | 8 in | Basic analog input | 100 × 120 × 40 | 0.30 |
| AAI141‑S00 | Analog input module | 8 in | Voltage/current inputs | 100 × 120 × 40 | 0.28 |
| AAI841‑H00/CCC01 | Analog I/O module | 8 in / 8 out | MIL connector with cover | 107.5 × 32.8 × 130 | 0.30 |
| AAI835‑H00 | Analog input/output module | Mixed I/O | HART support | 110 × 35 × 130 | 0.31 |
10 FAQs (Q/A Format)
Q: What type of signals does the AAI841-H00/K4A00 handle?
A: It accepts analog inputs of 4–20 mA or 1–5 V, and outputs 4–20 mA signals.
Q: How many channels are included?
A: The module supports 8 input channels and 8 output channels.
Q: What are the physical dimensions and weight?
A: Dimensions are approximately 107.5 mm × 32.8 mm × 130 mm; weight is 0.30 kg.
Q: Does the module support HART communication?
A: No, this specific model does not support HART—it is analog only.
Q: What is the module’s accuracy?
A: Input accuracy is ±16 µA, and output accuracy is ±48 µA.
Q: What is the response time for inputs and outputs?
A: Input response is approximately 100 milliseconds, output response around 40 milliseconds.
Q: What operating temperature range is supported?
A: The module works within 0 °C to +60 °C.
Q: What wiring interface does it use?
A: It uses a K4A00 type terminal block for wiring.
Q: How does the module detect circuit breaks?
A: It detects circuit-open conditions below 0.65 mA.
Q: Can this module be replaced by others in the AAI841 series?
A: Yes, models with similar form factors and wiring (including HART versions) can replace this module.