Yokogawa ASI133-H00/SA3S0 Analog Input Module | 8-Ch HART Barrier

Yokogawa ASI133-H00/SA3S0 Analog Input Module with Integrated Barrier

The Yokogawa ASI133-H00/SA3S0 represents a breakthrough in hazardous area signal acquisition, combining an 8-channel analog input module with built-in intrinsic safety barriers in a single compact unit. Designed for CENTUM VP and ProSafe-RS distributed control systems, this module eliminates the need for external barrier panels while maintaining SIL 2 safety integrity and full HART protocol transparency for advanced device diagnostics.

Core Technical Specifications

• Input Channels: 8 isolated analog inputs
• Signal Type: 4-20mA DC current loop
• Intrinsic Safety: Built-in barriers for Zone 1/Division 1 applications
• HART Support: Full protocol pass-through for device configuration and diagnostics
• Isolation: Channel-to-channel and channel-to-system isolation
• Accuracy: ±0.1% of span typical
• Resolution: 16-bit A/D conversion
• Safety Rating: SIL 2 certified per IEC 61508
• Operating Temperature: -10°C to +55°C
• Power Consumption: Low-power design for distributed I/O cabinets

Advanced Features & Engineering Benefits

Integrated Barrier Technology: The ASI133-H00/SA3S0 incorporates galvanic isolation and energy-limiting circuits directly within the module housing, allowing direct connection to field instruments in hazardous classified areas without external barrier racks. This architecture reduces installation costs by up to 40% compared to traditional barrier-plus-I/O configurations while improving cabinet space utilization.

HART Protocol Intelligence: Unlike basic analog modules, the ASI133 maintains full HART communication transparency, enabling simultaneous 4-20mA process variable transmission and digital device parameter access. Engineers can perform remote calibration, retrieve diagnostic alerts, and access extended measurement data from smart transmitters without interrupting control loops or requiring field visits.

Precision Signal Processing: Each input channel features independent 16-bit sigma-delta ADCs with programmable filtering to reject 50/60Hz noise and transient interference. Automatic cold junction compensation and linearization algorithms ensure measurement integrity across the full operating range, critical for custody transfer, emissions monitoring, and quality control applications.

Industrial Application Scenarios

Oil & Gas Production Facilities: Deploy in offshore platforms and onshore wellhead installations where explosive atmospheres require intrinsically safe wiring. The ASI133 connects directly to pressure transmitters, flow meters, and level sensors in Zone 1 areas, consolidating signals for production optimization, leak detection, and regulatory compliance reporting while maintaining HART access for predictive maintenance programs.

Chemical Process Safety Systems: Integrate with ProSafe-RS safety instrumented systems for SIL 2-rated emergency shutdown logic. The module's proven-in-use certification and diagnostic coverage support systematic capability calculations, while HART diagnostics enable condition-based proof testing to extend safety validation intervals and reduce process downtime.

Pharmaceutical Manufacturing: Monitor critical process parameters in cleanroom environments and hazardous material handling zones. The module's high accuracy and stability meet FDA 21 CFR Part 11 requirements for electronic records, while HART device signatures provide audit trails for calibration verification and batch documentation.

System Architecture & Integration

The ASI133-H00/SA3S0 mounts on standard Yokogawa I/O bases within CENTUM VP field control stations or remote I/O nodes. Configuration is performed through the Engineering Workstation using graphical function block programming, with automatic tag database generation and loop tuning assistance. The module supports hot-swapping for online replacement without system shutdown, critical for continuous process industries.

HART device management integrates with Yokogawa's FieldMate configuration tool and third-party asset management platforms via FDT/DTM or OPC UA interfaces. Diagnostic data streams to predictive maintenance dashboards, triggering work orders when transmitter drift, wiring faults, or power supply anomalies are detected.

Related Products

Expand your Yokogawa DCS I/O capabilities with these complementary modules:

• Yokogawa SAI143-H03 16-Channel Analog Input Module - High-density 4-20mA input card for non-hazardous area applications
• Yokogawa SAI143-S53 16-Channel Analog Input Module - Safety-rated I/O card for ProSafe-RS SIL 3 systems
• Yokogawa AAI143-S50/A4S10 16-Channel Analog Input Module - Versatile analog input with configurable signal types

Why Source from Industrial Control Hub?

We supply factory-certified Yokogawa automation components with complete technical documentation, calibration certificates, and global logistics support. Every ASI133-H00/SA3S0 module undergoes incoming inspection and functional verification before shipment, backed by our authenticity guarantee and application engineering assistance.

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