Yokogawa ASR133-S00 Isolated Current Input Module with HART

Product Overview

The Yokogawa ASR133-S00 functions as a high-precision analog interface for Distributed Control Systems (DCS). This module captures 4 to 20 mA signals from field transmitters while providing full galvanic isolation across 8 independent channels. It integrates HART communication capabilities, allowing for remote device configuration and advanced diagnostics. We supply this unit as 100% Brand New and Original, ensuring peak signal accuracy and long-term stability for critical process monitoring.

Part Number Breakdown

The ASR133-S00 follows Yokogawa's specific hardware identification logic:

• ASR133: Isolated Current Input Module (8-Channel, HART compatible).

• -S: Standard Type.

• 0: Always 0 (Standard specification).

• 0: Basic type without specialized options.

Technical Specifications

The ASR133-S00 delivers rapid data refreshing and high dielectric strength for demanding industrial loops.

Engineering Advantages

• Robust Signal Isolation: The module features a 1500 V AC withstanding voltage. This high dielectric barrier prevents ground loops and protects sensitive DCS backplane electronics from field-side electrical surges or high-potential differences.

• Integrated HART Pass-through: The ASR133-S00 supports bidirectional HART communication. This allows maintenance teams to perform remote calibration, range adjustments, and health monitoring of field instruments directly from the control room, significantly reducing the need for onsite handheld communicators.

• High-Speed Data Processing: With a 10 ms data update period, the module provides near-instantaneous process feedback. This rapid sampling proves essential for high-speed control loops where even minor delays in signal processing can lead to system oscillation or instability.

• Simplified Wiring Architecture: The module utilizes pressure clamp terminals. This screwless design maintains constant tension on the field wires, effectively resisting the vibration-induced loosening common in heavy industrial environments like refineries or chemical plants.

FAQs

How does the ASR133-S00 handle 2-wire vs. 4-wire transmitters?

The module accommodates both configurations. For 2-wire transmitters, the ASR133-S00 provides the necessary power (at least 16V DC). For 4-wire transmitters, the module manages the signal input while handling a maximum normal mode voltage of 25V applied to the terminals.

Can I replace a standard AS1133 module with the ASR133-S00?

Yes, the ASR133-S00 provides the added benefit of HART communication. If your existing system uses the same backplane architecture, this module offers a direct upgrade path to enable digital device management without changing your physical wiring.

What happens to the input resistance when the system power is OFF?

To protect the field loop, the module switches to a high-impedance state (1 M$\Omega$ or larger) when powered off. This ensures the module does not load down or interfere with other devices in the signal loop during maintenance shutdowns.

Is this a factory-sealed unit?

Absolutely. We provide only 100% Brand New Yokogawa hardware. Each ASR133-S00 arrives in its original anti-static factory packaging with an intact serial number to guarantee authenticity and a full manufacturer-rated service life.