51305890-175 Honeywell Low-level analog module

Description

51305890-175 Honeywell Low-level analog module

Product Dimensions：

Product Description

The Honeywell 51305890-175 is a Low-Level Multiplexer Thermocouple Field Termination Assembly (FTA). It is a key component of a larger Honeywell Distributed Control System (DCS), specifically designed for use with the MC-TAMT04 product line. Its primary function is to handle and multiplex low-level analog signals from thermocouples, which are commonly used for temperature measurement in industrial processes. This module acts as the interface between the thermocouple field wiring and the control system’s I/O processor.

Product Specifications

• • • Function: Low-Level Input Multiplexer for thermocouples
    • Channels: 16 input channels
    • Terminal Type: Compression terminals
    • Cold Junction Reference (CJR): Has a local CJR on the assembly to provide accurate temperature measurement.
    • Technology: Solid-state design
    • Environmental Protection: Conformal coating (CC) and CE compliant, providing protection against environmental contaminants.
    • Scanning Rate: Provides 1-second process variable (PV) scanning with Open Thermocouple Detection (OTD) protection.
    • Isolation: 64 fully-isolated channels, including channel-to-channel, channel-to-PM (Power Module), and channel-to-power supply common in 16-channel increments.
    • Compatibility: Must be used with a CE-compliant power adapter such as the 51309204-125 (MU-TALP02) or 51309204-175 (MC-TALP02).
    • Dimensions: Approximately 307 mm (12 inches) in length.
    • Weight: Approximately 0.85 kg (1.87 lbs).

    Advantages

    The Honeywell 51305890-175 offers several significant benefits for process control applications:

    • High-Accuracy Temperature Measurement: With a dedicated thermocouple design and a local Cold Junction Reference (CJR), the module ensures highly accurate and reliable temperature readings.
    • Enhanced Diagnostics: The integrated Open Thermocouple Detection (OTD) and other on-board diagnostic capabilities allow for rapid fault identification, reducing downtime and simplifying maintenance.
    • Robust and Reliable: The conformal coating provides excellent protection against corrosive gases, moisture, and other environmental factors common in industrial settings, extending the module’s lifespan.
    • Solid-State Technology: Its solid-state design eliminates the need for mercury-wetted relays, providing a more robust and reliable solution with a longer operational life.
    • Seamless Integration: Designed to work with Honeywell’s DCS systems, this module provides a streamlined interface for thermocouple inputs, simplifying the overall system architecture and configuration.

    Precautions

    To ensure safe and proper operation of the Honeywell 51305890-175 module, it is important to observe these precautions:

    • Consult the Manual: Always refer to the official Honeywell user and installation manuals for detailed instructions, wiring diagrams, and safety warnings. This is especially important for connecting the thermocouples and power adapter correctly.
    • ESD Protection: The module is sensitive to electrostatic discharge (ESD). Take proper ESD precautions, such as using a grounded wrist strap, when handling the module to prevent damage to the electronic components.
    • Correct Power Supply: Ensure that the correct CE-compliant power adapter (as specified in the documentation) is used. Using an incompatible or incorrect power supply can damage the module and other system components.
    • Proper Environment: While the module is conformally coated, it should still be installed in an appropriate control cabinet to protect it from extreme temperatures, excessive humidity, and physical damage.
    • Qualified Personnel: Installation, wiring, and configuration should only be performed by qualified and trained personnel who are familiar with industrial control systems and electrical safety practices.

    Applications

    The Honeywell 51305890-175 module is a crucial component in various industrial process control applications where precise and reliable temperature measurement is required. Its primary use is within Honeywell’s Distributed Control Systems (DCS). Common applications include:

    • Process Industries: Used extensively in industries like oil and gas, chemical processing, power generation, and refining to monitor and control temperatures in critical processes.
    • Manufacturing and Automation: Integrated into automated manufacturing lines to monitor temperatures in ovens, furnaces, and other heat-intensive processes.
    • Environmental Monitoring: Used in systems for monitoring environmental parameters where temperature is a key variable.
    • Quality Control: Part of systems that ensure product quality by maintaining specific temperature profiles during manufacturing.
    • Centralized Control Systems: Acts as a field interface for thermocouples, feeding temperature data to a central control system for monitoring, alarming, and control.

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