GE IS200VTCCH1CBB Thermocouple Processor Board

High-Precision Thermocouple Signal Processing

General Electric engineered the IS200VTCCH1CBB for accurate temperature measurement. This Thermocouple Processor Board operates within Mark VI Speedtronic systems. It provides reliable processing for multiple thermocouple inputs in turbine control applications.

Core Technical Specifications

• Manufacturer & Model: General Electric IS200VTCCH1CBB
• Product Type: Thermocouple Processor Board
• Series: Mark VI Speedtronic System
• Input Channels: 24 thermocouple inputs capacity
• Supported Types: E, J, K, S, T thermocouples
• Voltage Span: -8 mV to +45 mV input range
• A/D Resolution: 16-bit analog-to-digital conversion

Processing & Conversion Capabilities

• 16-bit analog-to-digital converter for high precision
• Microprocessor: AMD-K6 300 MHz for fast processing
• Common Mode Voltage: +5 Volts operational
• Normal Mode Rejection: 250 mV noise rejection
• Software linearization for individual thermocouple types
• Automatic calibration using filtered reference voltages

System Compatibility & Groups

• VTCCH1 Group: Optimized for gas turbine control applications
• VTCCH2 Group: General purpose with additional thermocouple types
• Works with TBTC or DTTC terminal boards
• Simplex Control: TBTCH1C terminal board configuration
• TMR Control: TBTCH1B terminal board configuration
• Same terminal boards used with both VTCC groups

Thermocouple Specifications

• Supports grounded and ungrounded thermocouples
• Maximum distance: 300 meters (984 ft) from control cabinet
• Maximum cable resistance: 450 Ω (two-way)
• High-frequency noise suppression on terminal board
• Two cold junction reference devices for accuracy
• Out-of-range inputs removed from scanning to protect system

Cold Junction Compensation

• Two cold junction (CJ) devices for redundancy
• Average of both CJs used when within configurable limits
• Single CJ used when only one within acceptable limits
• Default value applied when neither CJ within limits
• Automatic calibration of thermocouple and CJ inputs
• Filtered calibration reference and zero voltage usage

Physical Specifications

• Dimensions: 8.26 × 4.19 cm (3.25 × 1.65 inches)
• Operating Temperature: -30°C to +65°C
• Technology: Surface-mount construction
• Manufacturing Origin: United States
• Designed for VME rack installation
• Captive screws for secure front panel mounting

TMR System Operation

• Triple Modular Redundant configuration capability
• Signal variance detection from median/voted values
• Predetermined limits for fault identification
• Fault indication when signals exceed variance limits
• Diagnostic checks for system integrity monitoring
• Comprehensive fault detection capabilities

Installation Procedure

• Power down VME processor rack before installation
• Slide VTCC board into designated slot carefully
• Push top and bottom levers to seat edge connectors
• Tighten captive screws at top and bottom of front panel
• Ensure proper alignment and connection
• Follow safety procedures for rack installation

Application Areas

• Gas turbine temperature monitoring and control
• Steam turbine temperature measurement systems
• Wind turbine temperature monitoring applications
• Industrial process temperature measurement
• Critical temperature monitoring in power generation
• Automated drive assembly temperature control

Signal Processing Features

• Hardware limit detection for input protection
• Automatic removal of out-of-range inputs
• Prevents adverse effects on other channels
• High accuracy measurement with 16-bit resolution
• Fast processing with 300 MHz microprocessor
• Robust noise rejection for clean signal acquisition

Product Availability & Services

• Current Status: In stock for immediate shipment
• Repair Services: 3-7 day repair turnaround available
• New and original General Electric component
• Manufactured by GE Motors and Industrial Systems
• Complete with installation and operation documentation
• Ready for integration into temperature monitoring systems

Documentation & Support

• Refer to GE Manual GEH-6421 for detailed specifications
• GEH-6421V manual provides comprehensive guidance
• Technical support available for installation questions
• Fault indication and diagnostic information documented
• Complete operational and maintenance guidelines
• Safety and handling instructions provided

Shipping & Delivery

• Fast shipping via FedEx, UPS, and DHL services
• Orders typically ship within 24 business hours
• International shipping available worldwide
• Complete tracking information provided
• Professional packaging ensures board protection

Frequently Asked Questions (FAQ)

How many thermocouple inputs does this board accept?

• The IS200VTCCH1CBB accepts up to 24 thermocouple inputs for comprehensive temperature monitoring.

What thermocouple types are supported?

• Supports Type E, J, K, S, and T thermocouples with software linearization for each type.

What is the voltage input range?

• Accepts thermocouple signals from -8 mV to +45 mV for precise temperature measurement.

How does cold junction compensation work?

• Uses two cold junction references with averaging, single reference, or default value based on limit compliance.

What A/D conversion resolution is provided?

• Features 16-bit analog-to-digital conversion for high-precision temperature measurement.

How are out-of-range inputs handled?

• Inputs outside hardware limits are automatically removed from scanning to prevent system effects.