NASI02 ABB Bailey

NASI02 ABB Bailey Filter Modules

Product  Description：

• • A filter module in the context of ABB Bailey systems is not just a passive filter. It's a circuit board designed to perform specific signal processing functions. These modules are often installed in the system's I/O termination units or racks and are critical for cleaning up analog or digital signals coming from the field. They can mitigate electrical noise, transient spikes, and other forms of interference that can disrupt accurate measurement and control. They ensure that the control system receives clean, stable data, which is essential for making correct operational decisions.

     

    Product Parameters (Typical)

     

    Since ABB Bailey systems are legacy, a "typical" filter module may not have a single, unified specification. However, common parameters include:

    • Signal Type: Designed for specific signal types, such as analog inputs (e.g., 4-20mA, 0-10V), digital inputs, or specialized signals from devices like thermocouples or RTDs.

    • Voltage/Current Ratings: The operating voltage and current levels the module can handle.

    • Filtering Characteristics:

      • Cutoff Frequency: The frequency above which the filter significantly attenuates a signal. This is critical for removing high-frequency noise.

      • Attenuation: The amount of signal reduction provided by the filter.

    • Isolation: Many modules provide electrical isolation to prevent ground loops and protect the control system from high voltages or noise originating in the field.

    • Operating Environment: Specifications for operating temperature, humidity, and atmospheric conditions.

    • Compatibility: Designed for use in specific racks and with specific controller types (e.g., INFI 90).

     

    Product Advantages

     

    • Improved Signal Integrity: The primary advantage is the ability to clean up noisy signals from the field, leading to more accurate measurements and more reliable control.

    • Enhanced System Reliability: By mitigating electrical interference, these modules prevent false alarms, erratic control behavior, and potential system shutdowns, increasing overall plant reliability.

    • Protection for Control Electronics: The isolation provided by some modules protects sensitive control hardware from voltage spikes and other electrical anomalies from the field.

    • Backward Compatibility: As part of the Symphony system family (which evolved from Bailey systems), many of these modules maintain backward compatibility, which is crucial for plants with long operational lifecycles.

     

    Precautions

     

    • Legacy System Expertise: These modules are part of older control systems. Proper maintenance and troubleshooting require specialized knowledge of the INFI 90 and Net 90 architecture.

    • Compatibility is Key: Always verify that the filter module is compatible with the specific termination unit, I/O module, and system revision you are using. Incompatible modules can lead to system faults or damage.

    • ESD Precautions: As with all electronic components, handle the modules with care, using proper electrostatic discharge (ESD) precautions to avoid damage.

    • Obsolete Status: Many of these parts are now obsolete or considered surplus. It can be difficult to find new or genuine parts. Sourcing from reputable suppliers is crucial to ensure quality.

     

    Product Applications

     

    ABB Bailey Filter Modules are used in any industrial application that relies on the INFI 90 or Net 90 DCS for process control. This includes:

    • Power Generation: Used in power plants to filter signals from sensors monitoring turbines, boilers, generators, and other critical equipment.

    • Oil and Gas: Employed in refineries and pipelines to handle signals from flow meters, pressure transmitters, and temperature sensors.

    • Pulp and Paper: Essential for filtering signals in harsh environments with significant electrical noise.

    • Chemical Manufacturing: Used to ensure the accuracy of process variable measurements, which are vital for safety and product quality.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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