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Yokogawa AAI143 Analog Input Module
The Yokogawa AAI143 is a high-performance analog input module designed for use in process automation systems. It provides reliable, accurate input signal acquisition for various industrial sensors, supporting a wide range of input signals.
Product Overview
The AAI143 is part of the Yokogawa CENTUM VP and ProSafe-RS systems, delivering high-resolution analog input for monitoring temperature, pressure, flow, and other process variables. It supports multi-channel signal acquisition and isolation, ensuring signal integrity and system reliability in mission-critical applications.
Technical Specifications
| Parameter | Description |
|---|---|
| Model | AAI143 |
| Module Type | Analog Input Module |
| Channels | 16 channels |
| Input Signal | 4–20 mA DC (standard), others configurable |
| Resolution | 16 bits |
| Input Impedance | Approx. 250 Ω |
| Isolation | Channel-to-channel and channel-to-bus |
| Accuracy | ±0.1% of full scale |
| Operating Voltage | Supplied from base unit |
| Operating Temperature | 0 to 50°C |
| Storage Temperature | -20 to 70°C |
| Humidity | 5% to 95% RH (non-condensing) |
| Dimensions (W×H×D) | 107.5 × 32.8 × 130 mm |
| Weight | 0.3 kg |
Applications
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Chemical and petrochemical plants
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Oil and gas monitoring systems
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Power generation facilities
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Pharmaceutical manufacturing
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Water treatment systems
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Food and beverage process control
Key Advantages
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High-density 16-channel input capability
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Precise and reliable analog signal acquisition
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Electrical isolation enhances system safety
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Easy configuration with engineering tools
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Compact size and lightweight design
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Seamless integration with Yokogawa control systems
FAQ
1. What types of input signals does the AAI143 support?
The AAI143 primarily supports 4–20 mA DC signals and can be configured for other analog inputs depending on system settings.
2. Is each input channel isolated from the others?
Yes, the AAI143 offers full channel-to-channel and channel-to-bus isolation.
3. Can this module be used in safety instrumented systems?
Yes, the AAI143 is compatible with Yokogawa’s ProSafe-RS safety systems.
4. What is the resolution of the analog input signals?
It features a 16-bit resolution for high-accuracy data acquisition.
5. What is the operating temperature range for this module?
The operating temperature is between 0°C and 50°C.
6. How many analog input channels does the module support?
The AAI143 supports 16 analog input channels.
7. Is the module hot-swappable?
No, the module should be replaced with the system powered down to avoid signal disruption.
8. Does it require external power?
No, power is supplied via the base unit in the system.
9. What kind of maintenance is required?
The AAI143 requires minimal maintenance, primarily routine inspection and occasional calibration checks.
10. Is it compatible with CENTUM VP systems?
Yes, it is fully compatible with Yokogawa’s CENTUM VP platform.
Related or Similar Yokogawa Models
| Model | Description | Channels | Input Type | Dimensions (mm) | Weight |
|---|---|---|---|---|---|
| AAI141 | Analog Input Module (8 ch) | 8 | 4–20 mA | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI145 | Isolated Analog Input Module | 8 | 1–5 V | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI835 | Low Power Analog Input (16 ch) | 16 | 4–20 mA | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI543 | HART-Compatible Input Module | 16 | 4–20 mA HART | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI143-H50 | High Precision Input Module | 16 | 4–20 mA | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI841 | Voltage Input Module | 8 | ±10 V | 107.5 × 32.8 × 130 | 0.3 kg |
Popular Yokogawa Modules
| Model | Description | Type | Dimensions (mm) | Weight |
|---|---|---|---|---|
| ADV551 | Digital Output Module (16 ch) | Digital Output | 107.5 × 32.8 × 130 | 0.3 kg |
| AAI835-H00 | Low Power Analog Input (16 ch) | Analog Input | 107.5 × 32.8 × 130 | 0.3 kg |
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