IS200TRTDH1CBA - RTD Terminal Board

SPECIFICATIONS

Part No.: IS200TRTDH1CBA
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Temperature Operating: -30 to 65 o C
Technology: Surface mount
Product Type: RTD Terminal Board
Availability: In Stock
Series: Mark VI

Functional Description

IS200TRTDH1CBA is an RTD terminal board developed by GE. It is a part of Mark VI control system. The Terminal Board specializes in processing Resistance Temperature Device (RTD) inputs, capable of accommodating up to 16 three-wire RTD inputs. These inputs are efficiently connected to two barrier type terminal blocks on the board. The Board serves as a crucial intermediary device, adept at handling RTD inputs while ensuring accurate temperature measurements through noise suppression and efficient data processing, with the TRTDH1C variant offering a specific simplex configuration tailored for dedicated temperature-related functions.

Noise Suppression and Protection

• Noise Suppression Circuitry: The board is equipped with specialized noise suppression circuitry for each input, meticulously designed to counteract surges and high-frequency noise. These circuits act as a protective barrier, shielding the board and connected sensors from external disturbances that could compromise the accuracy and reliability of temperature measurements.
• Safeguarding Temperature Readings: The primary function of the noise suppression circuitry is to ensure the integrity of temperature measurements. By effectively suppressing unwanted noise, the board maintains a stable and clear signal, enabling precise and accurate readings from RTDs (Resistance Temperature Detectors).
• Reliability and Accuracy: The implementation of noise suppression circuitry is paramount for maintaining the reliability and accuracy of temperature measurements. By mitigating potential disturbances that could interfere with RTD readings, ensures consistent and dependable performance, even in challenging operating environments.
• Enhanced Protection: With robust noise suppression measures in place, the board provides enhanced protection for temperature measurement systems. This feature not only safeguards against external disturbances but also contributes to the longevity and durability of the board, ensuring sustained performance over time.

Data Conversion and Communication

• Communication with I/O Processors: The terminal board is designed to establish communication with one or more I/O processors within the system architecture. This communication interface serves as a vital link between the RTD inputs and the processing units responsible for data conversion and transmission.
• Analog-to-Digital Conversion: Upon receiving analog inputs from the RTDs (Resistance Temperature Detectors), the connected I/O processors undertake the critical task of converting these analog signals into digital temperature values. This process of analog-to-digital conversion ensures that temperature measurements are accurately represented in a digital format, suitable for further processing and analysis.
• Transmission of Temperature Values: Once the temperature values are converted into digital format, they are transmitted by the I/O processors to the controller or relevant monitoring systems. These temperature values carry essential information regarding the thermal conditions being monitored, providing valuable insights for analysis and control purposes.
• Integration with Monitoring Systems: The transmitted temperature values are seamlessly integrated into the controller or monitoring systems, where they can be accessed and analyzed in real-time. This integration enables operators to monitor temperature variations, detect anomalies, and initiate control actions as needed to maintain optimal operating conditions.

Features

• Connectivity: This version features two DC-type connectors designated for VRTD, likely enabling connections to compatible devices or interfaces for streamlined data exchange related to temperature measurements.
• Input Handling: Accommodation of 16 three-wire RTD inputs distributed across two barrier type terminal blocks.
• Noise Suppression: Incorporation of noise suppression circuitry to protect against surge and high-frequency noise, ensuring accurate temperature readings.
• Data Processing: Interaction with I/O processors for conversion of analog inputs to digital temperature values, facilitating efficient data transfer to the controller.
• TRTDH1C Variant: Specific configuration with two DC-type connectors (VRTD) for specialized connectivity, likely tailored for particular temperature-related functionalities or interfaces.

Installation

• Wiring Setup for RTDs: The sixteen Resistance Temperature Devices (RTDs) are directly wired to two terminal blocks situated on the terminal board. Each block is firmly secured using two screws and offers 24 terminals capable of accommodating wires up to 12 AWG in size. Adjacent to each terminal block, a shield terminal strip connected to the chassis ground ensures proper grounding and shielding for the installed RTD inputs.
• Shielding Requirements for CE Mark Compliance:For CE mark applications, it is essential to utilize double-shielded wire. The shields from all wires must be appropriately terminated at the shield terminal strip. It's crucial not to terminate shields at the end devices, ensuring compliance with CE marking standards and maintaining proper shielding throughout the system.
• Terminal Block Wiring for RTDs: Direct wiring of sixteen RTDs to two terminal blocks with 24 terminals each, secured using screws.
  Shielding Requirements for CE Mark: Use of double-shielded wire with proper termination of shields at the shield terminal strip, avoiding termination at end devices for compliance with CE marking standards.
• Redundant RTD Inputs: Utilization of TRTDH1B terminal board for redundant RTD inputs spread across three VRTD boards in R, S, and T racks within the Mark VI system, maintaining similar operational standards as TRTDH1C, except for the absence of fast scan functionality.

The WOC team is always available to help you with your Mark VI requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS200TRTDH1CBA?
It is an RTD terminal board developed by GE under the Mark VI series.

How frequently does the A/D converter sample RTD signals and excitation current, and what scanning modes are available?
The A/D converter on the I/O processor board samples each RTD signal and the excitation current four times per second in normal mode scanning. In fast-mode scanning, this increases to 25 times per second, utilizing a time sample interval correlated with the power system frequency.

How is linearization handled for different RTD types, and how are open or short circuits detected?
Linearization for the selection of 15 RTD types is performed within the software. Detection of RTD open or short circuits is accomplished by identifying out-of-range values. RTDs exceeding hardware limits are removed from the scanned inputs to prevent negative effects on other channels.

Is there an automatic reinstatement process for channels removed due to out-of-range values?
Channels that are identified as out of hardware limits are automatically removed from scanned inputs to protect other channels. Repaired channels are reinstated automatically within 20 seconds. Alternatively, they can be manually reinstated if needed.