Product Details
Product Description
The AAI141-H50/K4A00 (Part Number AAI141-H50/K4A00) is a high-density analog input interface designed for the Yokogawa CENTUM VP distributed control system. This module supports up to 16 channels of 4 to 20 mA DC signals, providing a versatile solution for large-scale industrial data acquisition. Engineered for precision, it effectively handles both 2-wire and 4-wire transmitter configurations, ensuring seamless integration with a wide variety of field instrumentation.
Featuring integrated HART digital communication (denoted by the -H suffix), the AAI141-H50/K4A00 allows for the transmission of device diagnostics and secondary process variables alongside the primary analog signal. This specific assembly includes the ATK4A-00 KS Cable Interface Adapter, which optimizes cabinet space and simplifies wiring through pre-fabricated multi-core cable connections. The module's rapid update cycle and low thermal drift make it an essential component for high-speed, safety-critical process monitoring.
Technical Specifications
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Input Channels 16 channels, non-isolated, 4 to 20 mA DC
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Digital Communication HART Protocol support for smart device management
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Data Refresh Rate 10 ms internal update period
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Signal Accuracy ±16 μA (at 23°C ± 2°C)
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Input Impedance 250 Ω (Note: 400 Ω to 1000 Ω is typical for total loop impedance including field wiring)
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Step Response 100 ms typical
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Transmitter Power Supply 14.8 V to 26.4 V DC
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Input Protection 27 mA current limit per channel
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Thermal Stability Temperature drift of ±16 μA per 10°C change
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Power Requirements 310 mA at 5 V DC and 450 mA at 24 V DC
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Connection Interface KS Cable Interface Adapter (ATK4A-00)
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Operating Temperature -20°C to 70°C
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Physical Profile 0.2 kg lightweight compact form factor
Configuration and Suffix Details
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AAI141 Base 16-channel current input model
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-H Digital communication enabled via HART protocol
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5 Standard design without explosion-proof certification
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0 Basic hardware version
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/K4A00 Integrated assembly with the ATK4A-00 KS cable adapter
Application Scenarios
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High-density monitoring of pressure, temperature, and flow transmitters in refineries.
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Real-time data acquisition for fast-acting control loops in power generation.
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Integration of HART-enabled smart instruments for predictive maintenance and asset management.
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Optimized wiring installations using KS multi-core cables to reduce panel footprint.
Technical FAQ
Can this module power 2-wire field transmitters?
Yes, the AAI141-H50/K4A00 provides a built-in transmitter power supply (14.8 to 26.4 V DC), allowing it to directly power 2-wire instruments without an external power source.
What is the benefit of the /K4A00 interface?
The /K4A00 option replaces standard terminal blocks with a KS Cable Interface. This allows the module to connect to terminal boards via high-density cables, significantly reducing the risk of manual wiring errors and shortening the commissioning timeline.
Is there isolation between the 16 channels?
The AAI141-H50/K4A00 is a non-isolated module (common ground). For applications requiring channel-to-channel isolation to prevent ground loops, the AAI135 series is the recommended alternative.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.
Understanding Marshalling Cabinets in Industrial Automation and Control Systems
Marshalling cabinets serve as the crucial connection hub between field instruments and centralized processing units. In large DCS and PLC control system architectures, hundreds of multipair field cables run from local junction boxes to the central instrument equipment room. The marshalling cabinet houses field terminal blocks, surge arresters, intrinsic safety isolation barriers, and interposing relays. By segregating field field-wiring terminations from sensitive processor hardware, engineers protect expensive controller backplanes from high-voltage transients. Consequently, this modular separation dramatically streamlines maintenance workflows and simplifies system expansion.
Essential Best Practices for PLC Wiring and Installation in Industrial Automation
Successful control system deployment begins with thoroughly reviewing manufacturer technical documentation. Controllers from major brands like Allen-Bradley, Siemens, and Schneider Electric feature unique terminal layouts. Engineers must verify voltage requirements before connecting power cables to prevent catastrophic equipment damage. Standard line connections require strict adherence to regional electrical codes and proper wire color coding. Furthermore, panel builders should always establish a robust low-impedance ground connection using at least 16-AWG copper conductor tied directly to the main plant grounding grid.