Yokogawa ATA4S-S00 S2 Pressure Clamp DCS Terminal

Product Overview

The Yokogawa ATA4S-S00 S2 serves as a high-density interface for signal acquisition within CENTUM VP and CENTUM CS 3000 Distributed Control Systems. This 16-channel module captures precise 4–20 mA DC current loops from field transmitters, sensors, and flowmeters. By utilizing a pressure clamp terminal architecture, the ATA4S-S00 S2 ensures secure, gas-tight connections that withstand industrial vibrations. It provides the essential data link required for real-time process monitoring, safety interlocking, and industrial data logging.

Part Number Breakdown: ATA4S

Technical Specifications

The ATA4S-S00 S2 meets rigorous industrial benchmarks for accuracy and environmental resilience:

• Input Channels: 16 independent channels

• Input Signal: 4–20 mA DC (Typical)

• Connection Method: Pressure clamp terminal block (Tool-free wiring)

• Environmental Protection: ISA G3 Standard (Corrosion resistance)

• Isolation: Full channel-to-channel and channel-to-ground isolation

• Enclosure Rating: IP54 equivalent (When correctly installed)

• Installation: Rack-mounted in DCS I/O subsystems

• Weight: 0.2 kg

• Condition: 100% Brand New in original factory packaging

• Origin: Japan

Engineering Advantages

• ISA G3 Corrosion Resistance: The ATA4S-S00 S2 complies with the ISA G3 standard, protecting internal circuitry against harsh atmospheric contaminants like Hydrogen Sulfide ($H_2S$) and Chlorine ($Cl_2$). This makes it indispensable for wastewater treatment, paper mills, and petrochemical facilities.

• Vibration-Proof Pressure Clamps: The tool-free pressure clamp mechanism eliminates the risk of loose screw terminals. This design maintains constant contact pressure even in high-vibration environments near turbines or heavy pumps, preventing intermittent signal loss.

• High-Density Rack Efficiency: Packing 16 channels into a compact rack-mount footprint allows engineers to minimize the number of I/O sub-nests required. This reduces total cabinet space and lowers the overall cost of the control system infrastructure.

• Robust Signal Isolation: Sophisticated isolation barriers shield the system backplane from field-side electrical surges and ground loops. This ensures that a single-channel failure does not propagate to the CPU or disrupt the remaining 15 inputs.

FAQs

Q1: Can the ATA4S-S00 S2 handle 0–10V voltage signals?

A1: No. The ATA4S-S00 S2 is specifically engineered for 4–20 mA current loops. If your application requires voltage inputs, you must utilize a precision shunt resistor or select a different Yokogawa module model such as the AAV series.

Q2: What are the installation requirements for ISA G3 compliance?

A2: To fully leverage the ISA G3 rating, you must install the module within a properly sealed DCS cabinet. The module's conformal coating protects the PCB, but ensuring clean filtered air within the enclosure further extends the lifespan of the entire system.

Q3: Does this module support 2-wire transmitter powering?

A3: The ATA4S-S00 S2 primarily acts as the terminal interface. Powering for 2-wire transmitters depends on the specific AAI input module paired with this terminal block. Ensure your system configuration supports the loop power requirements of your field instruments.

Q4: How do I verify the authenticity of the "S2" version?

A4: Every unit we supply is 100% Brand New and Original. The "S2" revision is verified via the factory serial number and the holographic seals on the Yokogawa original packaging. We provide full traceability for all DCS components.