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- Yokogawa
- AAI143-s53
- Analog Input Module (Current Input)
- Japan
- 107.5 × 32.8 × 130 mm
- 0.3kg
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Product Overview – AAI143‑S53
Introduction
The AAI143‑S53 is a 16‑channel analog input module engineered for precision capture of field signals, typically 4–20 mA or voltage ranges, in industrial automation systems. Compact yet robust, it is designed for use in Distributed Control Systems, offering isolated input processing for dependable performance in demanding environments.
Brand & Series
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Brand: A well‑respected industrial automation instrumentation brand
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Series: AAI143 analog input modules—designed for isolated, high‑density signal acquisition
Key Specifications
| Parameter | Specification |
|---|---|
| Model | AAI143‑S53 |
| Series | AAI143 analog input modules |
| Input Channels | 16, isolated |
| Input Signal Types | 4–20 mA (standard); some versions accept voltage (± ranges) |
| Input Resistance (Power ON) | 270 Ω (at 20 mA) to 350 Ω (at 4 mA) |
| Input Resistance (Power OFF) | ≥ 500 kΩ |
| Accuracy | ±16 µA (typical) |
| Data Update Period | 10 ms |
| Withstanding Voltage | 1500 V AC (input to system, 1 min) |
| Transmitter Power Supply | 19.0–25.5 V (depending on current profile) |
| Temperature Drift | ±16 µA per 10 °C |
| Current Consumption | 230 mA (5 V DC), 540 mA (24 V DC) |
| HART Communication | Available (on supported variants) |
| Operating Temperature | –20 °C to +70 °C |
| Weight | ~0.3 kg |
| Dimensions (W × H × D) | Approx. 107.5 × 32.8 × 130 mm or similar compact footprint |
| Environmental Rating | Compliant with ISA G3 for harsh conditions |
Applications
The module is suited for:
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High‐density analog data acquisition in advanced process control systems
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Precise 4–20 mA signal capture from field devices in sectors like oil & gas, chemical, power generation
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Integration into Distributed Control Systems for centralized monitoring and control
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Deployments demanding isolation amid electrically noisy environments
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Systems requiring standardized signal input handling with HART diagnostics (on capable variants)
Advantages
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High channel count (16) enables efficient dense input mapping.
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Galvanic isolation and high withstand voltage enhance system safety and noise rejection.
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Fast 10 ms updates support timely signal processing in dynamic control loops.
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Compact footprint and moderate weight (~0.3 kg) simplify panel layout.
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HART support delivers channel‐level diagnostics and configuration flexibility.
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Wide temperature range and ISA G3 compliance ensure reliability under harsh conditions.
Five Related or Same‑Series Models
| Model | Key Features | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| AAI143‑S50 | Standard version, 16 analog inputs (4–20 mA), isolated | ~108 × 33 × 130 | ~0.3 |
| AAI143‑H50 | Adds HART communication capability | Similar to S50 | ~0.3 |
| AAI143‑S53/A4S00 | S53 variant with pressure‐clamp terminal block | Similar compact footprint | ~0.3 |
| AAI143‑H53 | HART + ISA G3 + wide temperature support | Similar compact footprint | ~0.3 |
| AAI143‑S53/A4D00 | Dual pressure‑clamp terminal support | Similar compact footprint | ~0.3 |
Five Popular Models from the Same Brand
| Model | Functionality | Dimensions (mm) | Weight (kg) |
|---|---|---|---|
| AAI543‑S50 | 16‑channel isolated analog output module | Comparable size | ~0.4 |
| AAI543‑H50 | Analog output with HART communication | Comparable size | ~0.4 |
| AAI143‑H00 | Basic analog input without wide temp or G3 | Similar size | ~0.3 |
| AAV144 | Voltage output module (e.g. –10 to +10 V) | Comparable | ~0.2 |
| AAI141‑S50 | Analog output variant in the 141 series | Comparable | ~0.3 |
FAQ (10 Q&A)
Q1: What type of signals can the AAI143‑S53 accept?
A1: It handles 16 isolated analog inputs, primarily 4–20 mA, and some variants may support voltage ranges as well.
Q2: Is signal isolation provided?
A2: Yes—each channel is isolated, withstanding up to 1500 V AC between input and system.
Q3: How fast does it update data?
A3: The module refreshes inputs every ~10 ms.
Q4: Can it power transmitters?
A4: Yes, it supplies transmitter power between 19.0 V and 25.5 V depending on load.
Q5: Does it support HART communication?
A5: Yes, HART is supported on specific variants with the “H” identifier.
Q6: What are its dimensions and weight?
A6: It is compact—around 107.5 × 32.8 × 130 mm—and weighs approximately 0.3 kg.
Q7: What temperature ranges can it handle?
A7: Operating range typically spans –20 °C to +70 °C, as per the ISA G3 spec.
Q8: How accurate are its measurements?
A8: Measurement accuracy is ±16 µA with minimized drift of ±16 µA per 10 °C of ambient change.
Q9: Is it built for tough environments?
A9: Yes—it complies with ISA G3 standards and offers enhanced ruggedness.
Q10: Can I attach terminal blocks easily?
A10: Absolutely—models like A4S00 support pressure clamp or dual clamp terminal attachments for simplified wiring.