GE IS200TBTCH1CBB Thermocouple Terminal Board

Accurate Temperature Measurement for Turbine Control

General Electric manufactured the IS200TBTCH1CBB for precise temperature monitoring. This Thermocouple Input Terminal Board operates within Mark VIe turbine control systems. It provides reliable interface for multiple thermocouple sensors in industrial applications.

Core Technical Specifications

• Manufacturer & Model: General Electric IS200TBTCH1CBB
• Product Type: Thermocouple Input Terminal Board
• Series: Mark VIe Turbine Control System
• Channels: 24 thermocouple input channels
• Thermocouple Types: E, J, K, S, T supported
• Voltage Span: -8 mV to +45 mV input range
• Operating Temperature: 0°C to +45°C

Board Variants & Configurations

• TBTCH1C: Simplex board with two DC-type connectors
• TBTCH1B: TMR board with six DC-type connectors
• Simplex System: Two PTCC packs for 24 inputs
• TMR System: One to three PTCC packs, 12 inputs available
• Works with PTCC I/O packs in Mark VIe systems
• Supports simplex, dual, and TMR configurations

Thermocouple Specifications

• Supports grounded and ungrounded thermocouples
• Maximum distance: 300 meters (984 feet) from control panel
• Maximum cable resistance: 450 ohms (two-way)
• Cold junction reference range: -30°C to +65°C
• High-frequency noise suppression circuitry included
• Two cold junction reference devices for accuracy

Hardware Features

• Two barrier-type terminal blocks with 24 terminals each
• Removable blocks secured with two screws for maintenance
• Accepts wire sizes up to #12 AWG
• Shield terminal strips connected to chassis ground
• Six connector ports: JTA, JTB, JSA, JSB, JRA, JRB
• Three LED indicators for status and fault conditions

Signal Processing & Conversion

• Analog-to-digital conversion in I/O processor
• Thermocouple linearization for accurate temperature readings
• Cold junction compensation for measurement accuracy
• High-frequency noise suppression for clean signals
• Mark VI systems use single VTCC module for 24 inputs
• Mark VIe systems use two PTCC packs for 24 inputs

Cold Junction Monitoring

• Two cold junction references for redundancy
• Normally uses average of both references
• Configurable acceptable limits for monitoring
• Hard-coded limits: -40°C to +85°C (-40°F to +185°F)
• Backup values from other boards if CJ fails
• Open or short circuit detection for fault conditions

Installation & Wiring

• Direct connection of thermocouples to terminal blocks
• Removable blocks for easy installation and maintenance
• Shield terminal strips on left side of each block
• J-type connectors interface with I/O packs
• Scalable configurations based on redundancy needs
• Proper grounding for signal integrity

TMR System Operation

• Thermocouple signals distributed to three J-type connectors
• Connectors cable to three separate I/O processors
• Mark VIe TMR: 12 inputs per processor
• Mark VI TMR: 24 total inputs maintained
• Enhanced redundancy for critical applications
• Flexible configuration options

Board Construction & Protection

• Conformal coating for PCB protection
• Two functional revisions (1C, 2B) with artwork revision B
• Part of EX2100 Excitation Control System Series
• Manufactured by GE Industrial Systems
• Modified version of IS200TBTCH1 parent board
• Designed for industrial environment durability

Product Availability & Services

• Current Status: In stock for immediate shipment
• Repair Services: 3-7 day repair turnaround available
• New, unused, and refurbished board options
• All products backed by warranty coverage
• 24/7 expert support for automation needs
• Manufactured in the United States

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

Quality Assurance

• OEM replacement parts for GE control systems
• Largest inventory of replacement components
• Expert technical support available
• Comprehensive warranty on all products
• Quality testing before shipment
• Reliable performance in industrial applications

Frequently Asked Questions (FAQ)

How many thermocouple inputs does this board support?

• The IS200TBTCH1CBB supports 24 thermocouple input channels for comprehensive temperature monitoring.

What thermocouple types are compatible?

• Supports Type E, J, K, S, and T thermocouples for various temperature ranges and applications.

What is the voltage input range?

• The board accepts thermocouple signals from -8 mV to +45 mV for wide temperature measurement capability.

What configurations are available?

• Available in simplex (TBTCH1C) and TMR (TBTCH1B) configurations for different redundancy needs.

How far can thermocouples be installed?

• Thermocouples can be installed up to 300 meters (984 feet) from the control panel with proper cable.

What cold junction features are included?

• Includes two cold junction references with monitoring, limits checking, and backup value capabilities.