HONEYWELL CC-TUI041 51306873-176

Description

HONEYWELL CC-TUI041 51306873-176 is an isolated input module, specifically a Thermocouple/Voltage Input module, for the Honeywell Experion Process Knowledge System (PKS) C Series. This module, the CC-TUI041, with assembly part number 51306873-176, is designed to accept low-level analog signals from thermocouples (TCs) or millivolt/volt sources, providing high-precision measurement, isolation, and signal conditioning for critical temperature and voltage monitoring. Detailed technical information can be found on the product page: HONEYWELL CC-TUI041 51306873-176. The HONEYWELL CC-TUI041 module is essential for accurate and reliable acquisition of temperature and other low-voltage process variables in demanding industrial environments.

Product Description

The HONEYWELL CC-TUI041 is a high-density analog input module that installs into a C Series I/O chassis within the Experion PKS. The “TUI” designation typically stands for Thermocouple/Voltage Input. Its primary function is to connect directly to field thermocouples (of various types such as J, K, T, E, etc.) or DC voltage sources (e.g., 0-50 mV, 0-10V). The module performs critical tasks: it provides high-quality input filtering to reject electrical noise, offers per-channel galvanic isolation to prevent ground loops and protect the system, performs cold-junction compensation (CJC) for thermocouples, and converts the analog signal into a high-resolution digital value for the controller. The CC-TUI041 51306873-176 is engineered to deliver the measurement integrity required for process control, safety systems, and data acquisition.

Product Parameters

• Brand and Manufacturer: HONEYWELL.
• Product Series: Experion PKS C Series I/O.
• Product Type: Isolated Thermocouple/mV/Volt Input Module.
• Input Types: Configurable per channel for a wide range of signals:
  • Thermocouples: Types J, K, T, E, R, S, B, N, C, etc.
  • DC Voltage: Low-level millivolt (e.g., 0-50 mV) and higher voltage (e.g., 0-10V) inputs.
• Number of Channels: Likely 8 or 16 isolated input channels per module.
• Isolation: High level of channel-to-channel and channel-to-system isolation (e.g., 500V or 1500V AC).
• Cold Junction Compensation (CJC): Integrated, accurate CJC sensor for precise thermocouple measurement.
• Accuracy: High accuracy (e.g., ±0.05% of reading or better) and excellent long-term stability.
• Resolution: High-resolution analog-to-digital conversion (e.g., 16-bit or higher).
• Filtering: Advanced digital filtering to suppress industrial power line (50/60 Hz) and other noise.
• Diagnostics: Comprehensive diagnostics for open thermocouple (burnout detection), short circuit, overrange, and module health.
• LED Indicators: Per-channel status LEDs and module health indicators (Power, OK, Fault).

Advantages and Features

The primary advantage of the HONEYWELL CC-TUI041 is its combination of high precision, robust isolation, and seamless integration within the Experion PKS, providing a trusted measurement endpoint for critical process variables. Its ability to accept a wide variety of thermocouple and voltage inputs directly reduces the need for external signal converters. The module’s sophisticated filtering and high noise immunity ensure stable readings even in electrically noisy plant environments. Key features include configurable burnout detection (allowing the input to be driven high or low upon TC failure) and detailed diagnostics that simplify maintenance and improve plant availability. The module’s design supports high-density I/O, optimizing cabinet space. Using the genuine HONEYWELL CC-TUI041 ensures data integrity and full compatibility with Experion’s control and historian applications.

Application Cases in Various Fields

• Furnace and Reactor Temperature Monitoring: Directly connecting dozens of type K or type N thermocouples from a catalytic cracker or ethylene furnace to monitor temperature profiles.
• Turbine and Compressor Bearing Monitoring: Using mV-output vibration or position probes (proximity sensors) to monitor machine health via the module’s voltage input capability.
• Critical Temperature Control Loops: Providing the primary temperature input for a reactor’s exotherm control or a distillation column’s tray temperature control.
• Environmental Chambers and Test Stands: Measuring multiple temperature points with high accuracy in R&D or quality testing applications.
• Safety Instrumented Systems (SIS): Serving as the input module for safety-critical temperature points (e.g., high-temperature shutdown) in a Safety Manager or similar system due to its high reliability and diagnostics.

Comparison with Competing Products

As a proprietary module for Honeywell Experion, the CC-TUI041 does not have direct interchangeable competitors. Its functional equivalents are the thermocouple/voltage input cards in other major DCS platforms, such as Emerson’s DeltaV CHARM TC/mV cards, Siemens’ SIMATIC PCS 7 Analog Input modules for TCs, or Yokogawa’s CENTUM VP FIO AI modules. While these competitors offer similar technical capabilities (accuracy, isolation, diagnostics), the CC-TUI041 is specifically designed for the Experion I/O bus, communication protocol, and engineering toolset (Control Builder). The choice is inherently tied to the DCS platform selection. For Honeywell Experion users, this module is the standard and optimized solution for precision temperature and voltage measurement.

Selection Suggestions and Precautions

1. Confirm Signal Type and Range: Precisely define the thermocouple type or voltage range for each channel. The CC-TUI041 must be configured accordingly in the software.
2. Use Proper Thermocouple Wire: Always use the correct thermocouple extension wire (of the same type as the sensor) from the field junction box to the module terminals. Using ordinary copper wire will introduce measurement errors.
3. Implement Proper Grounding and Shielding: For millivolt signals and TCs, use shielded twisted-pair cables. Connect the shield at the system ground reference point only (usually at the I/O cabinet) to avoid ground loops.
4. Configure Burnout Detection: Enable and set the desired direction (upscale or downscale) for thermocouple burnout detection on critical points to provide a recognizable alarm for sensor failure.
5. Calibration and Verification: While highly accurate, periodic verification of critical loops against a standard is recommended. The module’s stability minimizes drift-related recalibration.

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