Yokogawa AAI143-H53/K4A00 Analog Input Module 16 Channel HART
Introduction:
16-channel isolated analog input module with HART protocol. 4-20mA signal range. KS Cable Interface Adapter included.
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Product Overview
Module Design and Application
The Yokogawa AAI143-H53/K4A00 is an analog input module from the AAI143 series. This module provides 16 isolated channels for 4 to 20 mA signals. The HART protocol option enables digital communication with smart field devices. Consequently, the AAI143-H53/K4A00 suits distributed control systems requiring both analog and digital data. The module includes a KS Cable Interface Adapter for connecting to the AEA4D terminal board.
Model Breakdown Explanation
The model number AAI143-H53/K4A00 reveals specific configuration details. The "H" indicates digital communication capability with HART protocol support. "5" means no explosion protection is included. "3" specifies the ISA Standard G3 option with extended temperature range (-20 to 70°C). Finally, "K4A00" includes the KS Cable Interface Adapter (Model ATK4A-00). Therefore, this configuration suits harsh industrial environments with corrosive gases.
Key Features and Benefits
Each of the 16 channels is fully isolated from the system. Therefore, ground loops and electrical noise are effectively eliminated. The module supports both 2-wire and 4-wire transmitters with per-channel configuration. Consequently, the AAI143-H53/K4A00 offers exceptional flexibility for various field devices. The data update period is only 10 ms for fast process response.
Technical Specifications
General Specifications
Manufacturer: Yokogawa
Product Number: AAI143-H53/K4A00
Product Type: Analog Input Module
Number of Input Channels: 16, isolated
Input Signal: 4 to 20 mA
Allowable Input Current: 24 mA maximum
Weight: 0.3 kg
Model Option Breakdown
| Code | Option | Description |
|---|---|---|
| H | HART Protocol | With digital communication (HART protocol) |
| 5 | Explosion Protection | No explosion protection |
| 3 | Environmental Option | ISA Standard G3 with -20 to 70°C temperature range |
| K4A00 | Interface Adapter | KS Cable Interface Adapter (Model ATK4A-00) |
Input Resistance Specifications
The Yokogawa AAI143-H53/K4A00 exhibits different input resistance depending on power state.
| Condition | Input Resistance |
|---|---|
| Power ON | 270 Ω (at 20 mA) to 350 Ω (at 4 mA) |
| Power OFF | 500 kΩ or larger |
Accuracy and Drift
Accuracy: ±16 µA
Drift due to ambient temperature change: ±16 µA per 10°C
Data Update Period
Data Update Period: 10 ms
Withstanding Voltage
Between input and system: 1500 V AC for 1 minute
Transmitter Power Supply
The AAI143-H53/K4A00 provides power for 2-wire transmitters.
| Parameter | Value |
|---|---|
| Minimum Voltage (at 20 mA) | 19.0 V or higher |
| Maximum Voltage (at 0 mA) | 25.5 V or less |
| Output Current Limit | 25 mA |
Transmitter Configuration
2-wire or 4-wire transmitter setting: Per channel using setting pins
Current Consumption
5 V DC: 230 mA maximum
24 V DC: 540 mA maximum
External Communication Interfaces
Pressure clamp terminal
MIL connector cable
Dedicated cable (KS1)
Environmental Specifications
Operating Temperature (with option 3): -20°C to 70°C
ISA Standard G3: Corrosive gas resistance for harsh environments
Installation Guide
Follow these steps to install the Yokogawa AAI143-H53/K4A00 correctly.
Power Down System: First, disconnect power from the DCS backplane completely.
Mount Module: Next, insert the AAI143-H53/K4A00 into the designated slot.
Connect KS Adapter: Then, attach the KS Cable Interface Adapter (ATK4A-00) to the module.
Wire Field Devices: After that, connect 2-wire or 4-wire transmitters to the input channels.
Set Transmitter Type: Meanwhile, configure each channel for 2-wire or 4-wire using setting pins.
Restore Power: Finally, reapply power and verify the module status indicators.
The AAI143-H53/K4A00 requires proper configuration of the setting pins for each channel. Therefore, verify transmitter type before finalizing wiring. In addition, ensure the KS cable is securely connected to the AEA4D terminal board. Consequently, proper installation ensures accurate analog signal acquisition.
Package List
The package includes the following physical items.
Yokogawa AAI143-H53/K4A00 analog input module (1 piece)
KS Cable Interface Adapter (Model ATK4A-00) (1 piece)
Setting pins for 2-wire/4-wire configuration (installed)
Product label with part number and options
Note: Field wiring and terminal boards are not included. The AEA4D terminal board is sold separately. No calibration certificate is provided with this module.
Frequently Asked Questions (FAQ)
1. How many channels does the AAI143-H53/K4A00 provide?
The Yokogawa AAI143-H53/K4A00 provides 16 isolated analog input channels. Therefore, it suits medium to large control system applications. Each channel accepts a 4 to 20 mA signal. Consequently, you can monitor up to 16 field devices with a single module.
2. Does this module support HART communication?
Yes, the Yokogawa AAI143-H53/K4A00 includes HART protocol support. Therefore, digital communication with smart field devices is fully enabled. The "H" in the model number confirms this feature. Consequently, you can access device diagnostics and configuration data through the same wiring.
3. What is the accuracy of the AAI143-H53/K4A00?
The Yokogawa AAI143-H53/K4A00 delivers ±16 µA accuracy. This high precision ensures reliable process measurement. Temperature drift adds only ±16 µA per 10°C. Therefore, accuracy remains excellent even in varying ambient conditions.
4. What is the difference between 2-wire and 4-wire transmitter settings?
For 2-wire transmitters, the AAI143-H53/K4A00 provides loop power through the same two wires. For 4-wire transmitters, the module accepts an externally powered signal. The setting pins determine which configuration each channel uses. Consequently, you can mix both types on the same module.
5. What is the KS Cable Interface Adapter used for?
The KS Cable Interface Adapter (ATK4A-00) connects the AAI143-H53/K4A00 to the AEA4D terminal board. Therefore, field wiring terminates on the terminal board rather than directly on the module. This design simplifies maintenance and replacement. Consequently, you can change modules without disturbing field wiring.
6. What is the operating temperature range of this module?
With option 3, the Yokogawa AAI143-H53/K4A00 operates from -20°C to 70°C. Therefore, it suits outdoor installations and unheated enclosures. The ISA Standard G3 option provides resistance to corrosive gases. Consequently, this module performs reliably in chemical plants and refineries.
7. What is the data update period of the AAI143-H53/K4A00?
The Yokogawa AAI143-H53/K4A00 has a data update period of only 10 ms. Therefore, fast process changes are captured without significant delay. This rapid update rate suits high-speed control applications. Consequently, your control system responds quickly to process disturbances.
Related Accessories
Enhance your Yokogawa DCS system with these compatible parts.
Terminal Board: Yokogawa AEA4D for field wiring termination
KS Cable: Yokogawa KS1 dedicated cable for module-to-terminal board connection
MIL Connector Cable: Yokogawa MIL cable for alternative wiring method
Pressure Clamp Terminal: Yokogawa accessory for secure field wire termination
Mounting Base: Yokogawa AAI143 compatible backplane for module installation
Always use genuine Yokogawa components with the AAI143-H53/K4A00. Therefore, third-party cables may cause communication errors or signal degradation. In addition, verify transmitter compatibility before ordering. Consequently, using authentic parts ensures optimal module performance and system reliability.