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IS200SCTTG1A - Simplex Thermocouple Input Terminal Board is available in stock which ships the same day.
IS200SCTTG1A - Simplex Thermocouple Input Terminal Board comes in UNUSED as well as REBUILT condition.
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TECHNICAL SPECIFICATIONS:
Part Number: IS200SCTTG1A
Manufacturer: General Electric (GE)
Series: Mark VI Speedtronic
Board Type: Simplex Terminal Board
Inputs: 12 Thermocouple Channels
Thermocouple Types: E, J, K, T, and S
Hardware Revision: G1A
Input Signal Range: -8 mV to +45 mV
A/D Resolution: 16-Bit
Scanning Rate: 10 ms (All 12 Channels)
Cold Junction Compensation: (2) Integrated CJC Sensors
CJC Accuracy: ±1.1 °C (±2.0 °F)
Common Mode Rejection: 100 dB @ 60 Hz
Normal Mode Rejection: 40 dB @ 60 Hz
Isolation: 1500 Vrms (Galvanic Field-to-Logic)
Connectors: (2) 37-pin D-type Connectors (JR1, JR2)
Terminal Blocks: (2) High-density Barrier Terminal Strips
Operating Temp: -30 °C to +65 °C (-22 °F to +149 °F)
Humidity: 5% to 95% (Non-condensing)
Availability: In Stock
Origin: United States
FUNCTIONAL DESCRIPTION:
The IS200SCTTG1A is a Simplex Thermocouple Input Terminal Board designed and manufactured within the General Electric (GE) Mark VI Speedtronic control system. Its primary function is the high-precision termination and signal conditioning of 12 thermocouple inputs. It serves as the physical interface between gas turbine temperature sensors and the Mark VI I/O processor, ensuring that critical exhaust and bearing temperatures are reported accurately to the control logic.
SIGNAL CONDITIONING AND THERMAL STABILITY
The board is engineered to handle the low-millivolt signals inherent in thermocouple sensing. To prevent inaccuracies caused by ambient temperature changes at the terminal blocks, the Simplex Thermocouple Input Terminal Board features integrated Cold Junction Compensation (CJC). These sensors provide a reference temperature that allows the control system to calibrate the incoming voltage, ensuring that the final temperature reading is a true reflection of the conditions inside the turbine.
SIMPLEX ARCHITECTURE AND CONFIGURATION
The Simplex Thermocouple Input Terminal Board is designed for non-redundant control loops or for high-density monitoring where a Triple Modular Redundant (TMR) architecture is not required. The board layout is optimized for clean cable routing, featuring high-quality terminal points that minimize resistance and signal loss, which is vital for the integrity of millivolt-level thermal data.
NOISE REJECTION AND PROTECTION
In the heavy-industrial environment of a power plant, electrical noise can easily corrupt sensitive temperature readings. The Simplex Thermocouple Input Terminal Board incorporates passive filtering to suppress electromagnetic interference (EMI) and radio frequency interference (RFI). This protection, combined with galvanic isolation, ensures that the sensitive I/O cards within the Mark VI rack are shielded from field-side transients and ground loops.
WHY BUY FROM WOC:
World of Controls supports the maintenance and longevity of your GE Speedtronic systems by offering the IS200SCTTG1A in both UNUSED and REBUILT conditions. Our technical team performs comprehensive circuit integrity checks and terminal stability tests to ensure every board meets original manufacturer specifications. We maintain an extensive inventory of Mark VI components to provide immediate support during critical outages. With global logistics and 24/7 technical expertise, WOC is your dependable partner for GE turbine control hardware.
What is the GE IS200SCTTG1A?
The IS200SCTTG1A is a 12-channel Thermocouple Input Terminal Board designed specifically for the GE Mark VI Speedtronic control system. It provides the physical termination points and signal conditioning required to transmit field temperature data to the control processors.
What is the primary use of the Simplex Thermocouple Input Terminal Board?
The Simplex Thermocouple Input Terminal Board is used to terminate and process signals from up to 12 thermocouples in a GE Mark VI control system, typically for monitoring exhaust gas temperatures (EGT) or bearing temperatures.
How does the board handle different thermocouple types?
The board is compatible with Types E, J, K, T, and S. The specific thermocouple type for each channel is defined within the GE Mark VI Toolbox software, allowing the system to apply the correct linearization and scaling for the signal.
What is the difference between a Simplex and a TMR board?
A Simplex board like the routes signals to a single I/O processor. In contrast, TMR (Triple Modular Redundant) boards split signals to three separate processors (R, S, and T) to provide fault tolerance for mission-critical turbine protection.
Does the Simplex Thermocouple Input Terminal Board require external power?
The board itself is passive in terms of signal processing but receives its logic-side power and reference voltages via the cables connecting it to the Mark VI I/O rack. Ensure all connections are secure to maintain proper signal reference.
