SPECIFICATIONS
Part No.: IS230STTCH2AA
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Number of channels: 12 channels per terminal board
Thermocouple types: E, J, K, S, T thermocouples, and mV inputs
Span: -8 mV to +45 mV
Product Type: Simplex Thermocouple Board
Availability: In Stock
Series: Mark VIe
Functional Description
IS230STTCH2AA is a Simplex Thermocouple Board developed by GE. It is a part of Mark VIe control system. The board offers a compact and versatile solution for integrating thermocouple inputs within control system setups. The terminal board is designed to be compact, making it suitable for installation in various environments. It offers flexibility in mounting options, allowing it to be mounted on either a DIN-rail or a flat surface. This versatility ensures that the STTC board can be easily integrated into different control system configurations.
Features
- Multiple Thermocouple Inputs: Equipped with twelve thermocouple inputs, the board provides ample capacity for connecting multiple thermocouple sensors. These inputs enable precise monitoring of temperature levels at various critical points within the system, ensuring accurate temperature measurement and control.
- Integration with Processor Boards: Connects to either the PTCC (Programmable Thermocouple Cold Junction Compensation) thermocouple processor board on the Mark VIe or the VTCC (Voltage Thermocouple Cold Junction Compensation) thermocouple processor board on the Mark VI. This connection serves as an interface between the thermocouple inputs and the processing unit, facilitating efficient data transmission and processing for real-time temperature monitoring and control.
- On-Board Signal Conditioning and Cold Junction Reference: Features on-board signal conditioning and cold junction reference, ensuring accurate and reliable temperature measurement. This functionality is identical to that found on the larger TBTC (Thermocouple Terminal Board) board, providing consistent performance and reliability across different board sizes.
- High-Density Euro-Block Terminal Blocks: High-density Euro-Block type terminal blocks are mounted directly onto the board. These terminal blocks provide a reliable and secure connection interface for wiring thermocouple sensors, ensuring stable and consistent signal transmission between the sensors and the processing unit.
- On-Board ID Chip: An on-board ID chip is integrated into the board, serving to identify the board to the processor for system diagnostic purposes. This ID chip contains essential information about the board, such as its serial number, board type, and revision number. The identification capability provided by the ID chip enhances system diagnostics and troubleshooting efforts by providing valuable information about the status and configuration of the STTC board.
Installation Procedure
- Mounting Options: The board, along with a plastic insulator, mounts onto a sheet metal carrier, which is then installed on a DIN rail. Alternatively, STTC and insulator can be mounted directly onto a sheet metal assembly, which is secured within the control panel using bolts. This mounting flexibility accommodates different installation configurations and ensures secure placement of the board within the control system setup.
- Terminal Block Connection: Thermocouples are wired directly to the Euro-Block type terminal block mounted on the STTC board. The terminal block provides a reliable and secure connection interface for wiring thermocouple sensors. Typically, 18 AWG wires are used for wiring, ensuring stable and consistent signal transmission between the thermocouples and the STTC board.
- Terminal Block Options: The Euro-Block type terminal block offers flexibility in configuration. It has 42 terminals that can be fixed or removable, providing options for customizing the terminal block layout based on specific installation requirements. This versatility allows for efficient organization and management of thermocouple wiring connections.
- Secure Mounting: Once the mounting location is determined and the board is positioned accordingly, it is essential to ensure that the unit is securely fastened to prevent movement or displacement during operation. Proper mounting not only ensures stability but also helps maintain reliable electrical connections and system integrity over time.
- Compliance with Safety Standards: During installation, installers should adhere to all relevant safety guidelines and regulations to ensure the safety and integrity of the installation process. This includes using appropriate tools and equipment, following manufacturer instructions, and complying with electrical codes and standards applicable to the installation location.
Operation
- Cold Junction Reference (CJ): The I/O pack or board provides excitation for the cold junction reference located on the terminal board. This reference is crucial for accurate temperature measurements.
- Connector JA1: All signals, including the 12 thermocouple signals, the cold junction (CJ) signal, and the connection to the identity chip (ID), are transmitted through connector JA1. This connector serves as the primary interface for data exchange between the STTC and the I/O pack or board.
The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.
Frequently Asked Questions
What is IS230STTCH2AA?
It is a Simplex Thermocouple Board developed by GE under the Mark VIe series.
What is the purpose of the STTC board?
It serves as a terminal interface for connecting thermocouple sensors to the control system, allowing for accurate temperature monitoring and control.
How many thermocouple inputs does the board support?
The board supports up to 12 thermocouple inputs, providing ample capacity for connecting multiple thermocouple sensors within the control system setup.
What type of mounting options are available?
Can be mounted on either a DIN rail or a flat surface, offering flexibility in installation options to accommodate different control system configurations.
What type of terminal blocks are used?
Features high-density Euro-Block type terminal blocks, providing a reliable and secure connection interface for wiring thermocouple sensors.
How are thermocouples wired?
Thermocouples are wired directly to the terminal blocks using typical 18 AWG wires, ensuring stable and consistent signal transmission between the sensors and the control system.
What is the function of the on-board ID chip?
The on-board ID chip identifies the board to the processor for system diagnostic purposes, providing essential information such as serial number, board type, and revision number.
How does the board detect open circuits in thermocouple paths?
It injects a very small current into each thermocouple path when operating with the I/O processor. This current is used to detect open circuits, creating a low-temperature reading if a thermocouple path becomes open.
