Product Description

The AAI143 (P/N: AAI143-H50/ATA4S-00) is a high-density 16-channel analog input module designed for the Yokogawa CENTUM VP distributed control system. Each channel is fully isolated, enabling precise measurement of process variables such as flow, temperature, and pressure via standard 4 to 20 mA signals.

As a HART-enabled module (H-suffix), the AAI143-H50/ATA4S-00 allows the DCS to communicate digitally with smart transmitters, supporting remote configuration, advanced diagnostics, and asset management. The ATA4S-00 option incorporates a Pressure Clamp Terminal Block directly on the module, eliminating the need for separate KS cables or external terminal boards. This makes it space-efficient, ideal for compact I/O cabinets, while maintaining high signal integrity and rapid data update cycles for mission-critical applications.

Technical Specifications

Application Use Cases

• High-density analog sensing in centralized I/O racks

• Smart instrumentation environments for flow, pressure, and temperature monitoring

• Facilities utilizing Yokogawa PRM for remote device diagnostics

• Oil & gas, chemical, and pharmaceutical plants requiring compact, high-reliability modules

FAQ

What is the primary benefit of the ATA4S-00 terminal block?

• The ATA4S-00 is a direct-attach pressure clamp terminal, providing secure, vibration-resistant connections and reducing the need for external terminal boards.

Can this module handle 2-wire and 4-wire transmitters?

• Yes. 2-wire transmitters require external loop power or a configured terminal board, while 4-wire transmitters (self-powered) can be connected directly.