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- Yokogawa
- AAI143-S50/K4S00
- Analog Input Module
- Japan
- 107.5 mm × 32.8 mm × 130 mm
- 0.3kg
- Xiamen, China
- New & In Stock
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Product Overview: Yokogawa AAI143-S50/K4S00
Product Introduction
The Yokogawa AAI143-S50/K4S00 is a high-performance, 16-channel analog input module designed for use in distributed control systems (DCS). Built for accuracy, isolation, and modularity, this unit supports 4–20 mA DC signals and is engineered to meet the demands of complex industrial automation environments. It uses a K4S00 interface connector, allowing efficient and reliable communication with the terminal board, ensuring flexible system architecture and simplified wiring.
This module is ideally suited for applications where multi-channel signal acquisition is needed with high-speed data update rates and electrical isolation between channels to prevent crosstalk and interference.
Technical Specifications
| Specification | Details |
|---|---|
| Model | AAI143-S50/K4S00 |
| Signal Type | Analog Input |
| Number of Channels | 16 (individually isolated) |
| Input Signal Range | 4–20 mA DC |
| Input Resistance | 270–350 Ω (typical across signal range) |
| Accuracy | ±16 µA |
| Update Period | 10 ms |
| Isolation Voltage | 1500 V AC (input–system, 1 minute) |
| Transmitter Power Supply | 19–25.5 V DC (25 mA max per channel) |
| Interface Type | K4S00 (K‑type connection block) |
| Operating Temperature | –20 °C to +60 °C |
| Storage Temperature | –40 °C to +70 °C |
| Installation | Mounted in baseplate/module rack |
| Dimensions (L × W × H) | 107.5 mm × 32.8 mm × 130 mm |
| Weight | 0.30 kg |
| Power Consumption | Approx. 230 mA (5 V DC), 540 mA (24 V DC) |
| Certification | CE, CSA (varies by system configuration) |
Product Applications
-
Refineries and Petrochemical Plants
Monitoring and controlling process variables such as flow, temperature, and pressure. -
Power Generation
Used for capturing sensor inputs in turbines, boilers, and auxiliary systems. -
Water and Wastewater Treatment
Enables multi-point monitoring of flow rates, chemical concentrations, and tank levels. -
Steel and Manufacturing Plants
Acquires analog input data from sensors, providing robust feedback for automation. -
Building and Facility Automation
Interfaces with environmental sensors (e.g., HVAC systems) to ensure operational efficiency.
Product Advantages
-
High Isolation Protection
Each channel is individually isolated, ensuring reliable and safe operation in high-noise environments. -
Precision Signal Handling
Provides ±16 µA measurement accuracy, enabling consistent and high-resolution analog input acquisition. -
Fast Response Time
10 ms data update rate supports real-time process control and monitoring. -
Compact and Modular Design
Saves cabinet space while offering easy installation and replacement in modular system configurations. -
Reliable Power Supply to Transmitters
Integrated loop power supply per channel supports standard 2-wire transmitter devices.
Brand and Series
-
Brand: Yokogawa
-
Series: AAI Series (Analog Input Isolated Modules)
A sub-series within the larger Yokogawa CENTUM or ProSafe control systems designed to manage field signal inputs.
Related Models (Same Series or Closely Related)
| Model | Input Type | Channels | Accuracy | Interface | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| AAI143-S53/K4S00 | 4–20 mA | 16 | ±16 µA | K4S00 | 107.5×32.8×130 | 0.30 |
| AAI143-H50/K4S00 | 4–20 mA + HART | 16 | ±16 µA | K4S00 | 107.5×32.8×130 | 0.30 |
| AAI143-S50/K4A00 | 4–20 mA | 16 | ±16 µA | K4A00 | 107.5×32.8×130 | 0.30 |
| AAI143-H53/K4S00 | 4–20 mA + HART | 16 | ±16 µA | K4S00 | 107.5×32.8×130 | 0.30 |
| AAI143-S50/A4S00 | 4–20 mA | 16 | ±16 µA | A4S00 | 107.5×32.8×130 | 0.30 |
Popular Models from Same Brand
| Model | Type | Channels | Output/Input | Interface | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| AAI543-S50/K4S00 | Analog Output | 16 | Output | K4S00 | 107.5×32.8×130 | 0.30 |
| AAI143-H50/A4S00 | Analog Input + HART | 16 | Input | A4S00 | 107.5×32.8×130 | 0.30 |
| AAI143-S50/A4D00 | Analog Input | 16 | Input | A4D00 | 107.5×32.8×130 | 0.30 |
| AAI543-H50/K4A00 | Analog Output + HART | 16 | Output | K4A00 | 107.5×32.8×130 | 0.30 |
| AAB841-S00/K4S00 | Mixed I/O | 8+8 | In/Out | K4S00 | 107.5×32.8×130 | 0.30 |
Frequently Asked Questions (FAQ)
Q1: What type of input signals does the AAI143-S50/K4S00 support?
A1: It supports 4–20 mA DC analog input signals, commonly used in industrial process control.
Q2: How many input channels are available?
A2: This module has 16 independently isolated input channels.
Q3: What kind of interface does it use?
A3: It uses the K4S00 interface, a reliable cable-based connection to terminal blocks.
Q4: Is the module HART-compatible?
A4: The S50 version does not support HART. Use the H50 variant for HART support.
Q5: What is the isolation voltage rating?
A5: 1500 V AC isolation between input channels and the system, ensuring electrical safety.
Q6: How accurate is the analog input reading?
A6: It provides high-precision readings with an accuracy of ±16 µA per channel.
Q7: Can this module power 2-wire transmitters?
A7: Yes, it includes loop power supply per channel up to 25 mA.
Q8: What is the operating temperature range?
A8: –20 °C to +60 °C, suitable for most industrial environments.
Q9: How is it mounted?
A9: It is mounted in a baseplate or rack system as part of a larger DCS configuration.
Q10: Is it compatible with legacy Yokogawa systems?
A10: Yes, it is part of the AAI series and integrates well with CENTUM series control systems.
Authenticity guarantee
All product specifications are original and authentic imported products. We have an annual sales volume of 300 million yuan, and we only produce original and authentic products. All customers who cooperate with us directly online can enjoy low discounts.
Free warehouse
We have a complete range of product models, 80% of conventional models are in stock, and we have established channels in Asia, Africa, North America, South America, and Europe, effectively shortening the order processing time and satisfying customers in a timely manner.
Technical Team
Fast delivery. Spot goods can be shipped on the same day, and the delivery time transaction is 20% faster than that of peers on average, with a delivery time accuracy rate of 99%.
Thoughtful after-sales service
24-hour after-sales service guarantee team, professional and standardized management service system.