Product Overview

The Yokogawa ATA4S-10 S2 is a high-performance pressure clamp terminal block module specifically developed for the CENTUM VP Distributed Control System (DCS). This specialized interface unit provides the physical connection between field instrumentation and analog I/O modules. Designed with an integrated surge absorption circuit, the ATA4S-10 S2 acts as a protective barrier, shielding sensitive control electronics from voltage transients, lightning-induced surges, and switching noise that can compromise signal accuracy.

The module is optimized for analog signal transmission where maintaining low contact resistance is essential for measurement precision. By utilizing advanced pressure clamp technology, it ensures a gas-tight, vibration-proof connection that remains stable throughout the lifecycle of the plant, significantly reducing the maintenance burden associated with traditional screw-type terminals.

Technical Specifications

• Manufacturer: Yokogawa

• Model Number: ATA4S-10 S2

• Module Type: Pressure Clamp Terminal Block

• Signal Compatibility: Analog Input / Analog Output

• Protective Circuitry: Integrated Surge Absorber

• Connection Technology: Screwless Pressure Clamp

• System Environment: CENTUM VP / FIO System

• Operating Temperature: -20°C to +70°C

• Dimensions: 3.3 cm x 10.7 cm x 13.0 cm

• Weight: 0.3 kg

• Product Origin: Japan

Key Technical Characteristics

• Integrated Surge Suppression: Each terminal point features built-in surge absorption components designed to clamp high-voltage transients, preventing damage to the DCS analog cards and increasing the overall resilience of the control loop.

• Tool-Free Pressure Clamping: The screwless design facilitates rapid wiring and ensures uniform contact pressure on the conductor, eliminating the risk of loose connections caused by mechanical vibration or thermal cycling.

• Analog Signal Optimization: Engineered to minimize electrical noise and contact resistance, providing a clean pathway for 4-20mA signals, mV inputs, and other sensitive process variables.

• High-Density Configuration: The compact housing allows for efficient utilization of DIN rail space within control cabinets, supporting high-density I/O node units without compromising access for maintenance.

• Rugged Industrial Build: Constructed with high-grade, flame-retardant materials and corrosion-resistant metal components, the ATA4S-10 S2 is rated for continuous operation in harsh petrochemical and power plant environments.

• "S2" Enhanced Performance: This variant features improved internal health diagnostics and enhanced materials, ensuring long-term reliability and full compatibility with the latest generation of Yokogawa FIO hardware.