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- IS210DTTCH1A IS200DTTCH1A
- Simplex Thermocouple Input Terminal Board
- USA
- 180 × 120 × 35 mm
- 0.38 kg
- Xiamen, China
- New & In Stock
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Product Overview
The GE IS210DTTCH1A / IS200DTTCH1A is a Mark VI Simplex Thermocouple Input Terminal Board used to connect thermocouple field instrumentation with the temperature-input portion of a GE Mark VI turbine control system. It sits at the field termination level, where thermocouple wiring from temperature sensors is organized before the signals reach the associated Mark VI I/O hardware.
In turbine and generator installations, thermocouples are commonly used to monitor temperatures at locations such as exhaust systems, bearings, combustion-related areas, steam paths, and other equipment where temperature condition is relevant to operation or protection. The terminal board provides the physical interface needed to bring these sensor circuits into the control cabinet in an organized manner.
The IS210DTTCH1A / IS200DTTCH1A is a simplex terminal-board arrangement, so it should be considered as part of the overall Mark VI temperature-monitoring architecture rather than as a standalone temperature controller. Correct sensor wiring, channel identification, polarity, and the associated I/O configuration are important when installing or replacing the board.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | IS210DTTCH1A / IS200DTTCH1A |
| Product Type | Mark VI Simplex Thermocouple Input Terminal Board |
| Product Family | GE Mark VI |
| Series | Mark VI |
| Component Category | Thermocouple Input Terminal Board |
| System Role | Temperature Signal Termination |
| Input Function | Thermocouple Temperature Input |
| Interface Function | Thermocouple Sensor Interconnection |
| Application | Turbine Temperature Monitoring |
| System Integration | GE Mark VI Control System |
| Component Type | Terminal Board |
| Control Architecture | Mark VI Turbine Control Architecture |
| Installation | Mark VI Control Cabinet |
| Dimensions | 180 × 120 × 35 mm |
| Weight | 0.38 kg |
Product Features
- Mark VI terminal-board hardware for thermocouple temperature inputs.
- Provides an organized field interface for thermocouple sensor wiring.
- Connects temperature measurement circuits with associated Mark VI I/O hardware.
- Supports simplex temperature-input architecture.
- Keeps field sensor termination separate from the main electronic control functions.
- Suitable for temperature monitoring in turbine and generator-related equipment.
- Helps maintain identifiable sensor-to-channel wiring within the control cabinet.
- Supports maintenance and replacement of established GE Mark VI installations.
- Forms part of the field instrumentation layer used for temperature acquisition.
- Can be incorporated into turbine monitoring, protection, and control schemes where thermocouple measurements are required.
Working Principle
The IS210DTTCH1A / IS200DTTCH1A functions as the termination interface between thermocouple field sensors and the associated Mark VI temperature-input hardware. A thermocouple generates a temperature-dependent electrical signal at the sensing point, and the field wiring carries that signal back toward the control cabinet.
The terminal board provides the connection point where the thermocouple circuit is organized and routed to the appropriate Mark VI I/O interface. The board itself does not execute turbine control logic; temperature acquisition and subsequent control-system processing are handled by the associated electronic I/O and control hardware.
Thermocouple Sensor → Field Wiring → IS210DTTCH1A / IS200DTTCH1A → Mark VI Temperature I/O Hardware → Mark VI Control System
Once the temperature signal reaches the Mark VI I/O system, the control architecture can use the acquired measurement for monitoring, alarms, protection functions, operating displays, or control strategies according to the turbine configuration.
Because thermocouple circuits are polarity-sensitive and can be affected by wiring or connection problems, correct point identification and termination are important during maintenance. An incorrect connection can appear as an abnormal temperature reading even when the sensor itself is functioning correctly.
Role in a GE Mark VI Temperature Monitoring Architecture
The IS210DTTCH1A / IS200DTTCH1A occupies the field termination portion of the Mark VI temperature-input architecture. It connects thermocouple instrumentation to the electronic I/O system while leaving signal acquisition, processing, monitoring, and control decisions to the appropriate Mark VI hardware.
| System Layer | Typical Component | Function |
|---|---|---|
| Supervisory Layer | HMI / Operator Interface | Displays turbine temperature and equipment status |
| Control Layer | GE Mark VI Control System | Processes configured temperature information and control logic |
| I/O Processing | Mark VI Temperature I/O Hardware | Acquires and processes thermocouple input signals |
| Termination | IS210DTTCH1A / IS200DTTCH1A | Provides thermocouple field-signal termination |
| Field Interface | Thermocouple Wiring | Carries temperature sensor signals to the control cabinet |
| Temperature Sensors | Thermocouples | Measure equipment and process temperatures |
| Turbine Equipment | Turbine / Generator / Auxiliary Equipment | Produces the monitored thermal conditions |
Industrial Applications
| Application | Terminal Board Role |
|---|---|
| Gas Turbine Control | Connects thermocouple measurements used for turbine temperature monitoring |
| Steam Turbine Control | Interfaces temperature sensors associated with turbine and auxiliary equipment |
| Generator Systems | Supports temperature measurement of relevant generator and auxiliary equipment |
| Exhaust Temperature Monitoring | Routes thermocouple signals toward Mark VI temperature I/O hardware |
| Bearing Temperature Monitoring | Provides the field wiring interface for applicable temperature sensors |
| Combustion Monitoring | Supports thermocouple measurement circuits used in turbine operating supervision |
| Auxiliary Equipment Monitoring | Connects temperature instrumentation associated with supporting equipment |
| Turbine Protection | Supplies temperature measurement paths used by configured monitoring and protection functions |
Installation and Maintenance
- Confirm the IS210DTTCH1A / IS200DTTCH1A model designation and verify that it matches the existing Mark VI terminal-board configuration.
- Review the applicable Mark VI cabinet drawings, I/O documentation, and thermocouple loop diagrams before beginning work.
- Isolate the relevant control and field circuits according to the approved turbine maintenance procedure.
- Identify and label each thermocouple circuit before disconnecting the existing terminal board.
- Inspect the replacement board for damaged terminals, connectors, mounting points, or other visible defects.
- Inspect the existing thermocouple wiring for broken conductors, loose terminations, corrosion, or damaged insulation.
- Remove the existing terminal board carefully while preserving the identification of each connected circuit.
- Install the replacement board in the designated Mark VI cabinet position and secure the mounting arrangement correctly.
- Reconnect each thermocouple circuit according to the approved wiring documentation, paying particular attention to channel assignment and polarity.
- Verify the point-to-point wiring from the thermocouple field circuit through the terminal board to the associated Mark VI temperature I/O channel.
- Perform a controlled temperature-input verification and check that the Mark VI system receives plausible readings without unexpected alarms or channel faults.
- Record the replacement details, channel assignments, wiring checks, and any configuration changes for future maintenance and troubleshooting.
Related Components
| Component | Function in the System |
|---|---|
| GE Mark VI Control System | Processes temperature information and executes configured turbine control functions |
| Mark VI Temperature I/O Hardware | Acquires thermocouple input signals from the field |
| Thermocouple Sensor | Measures temperature at the monitored equipment location |
| Thermocouple Field Wiring | Carries sensor-generated signals to the terminal board |
| Mark VI Terminal Board | Provides the physical field interface for temperature instrumentation |
| Turbine Instrumentation | Supplies operating measurements used by the control system |
| HMI / Operator Interface | Displays temperature measurements, alarms, and equipment status |
| Control Cabinet | Houses the terminal board and associated Mark VI control hardware |
Recommended Related Models
| Model | Product Type | Typical Relationship |
|---|---|---|
| GE IS200 Series | Mark VI Terminal and Interface Hardware | Related Mark VI board family |
| GE IS210 Series | Mark VI Terminal and Interface Hardware | Related Mark VI board family |
| GE Mark VI Thermocouple Input Hardware | Temperature I/O Hardware | Associated temperature-input equipment |
| GE Mark VI Terminal Boards | I/O Terminal Hardware | Related field termination hardware |
| GE Mark VI I/O Hardware | Turbine Control I/O Hardware | Associated electronic I/O architecture |
Key Advantages
- Provides a dedicated interface for thermocouple field wiring.
- Supports organized temperature-signal termination within a Mark VI control cabinet.
- Separates field sensor connections from electronic I/O processing.
- Supports turbine and auxiliary-equipment temperature monitoring.
- Helps maintain clear sensor-to-channel wiring during service work.
- Suitable for replacement and maintenance of established GE Mark VI systems.
Technical FAQs
What is the function of the IS210DTTCH1A / IS200DTTCH1A terminal board?
It provides the field termination interface for thermocouple temperature signals within a GE Mark VI control architecture. The board connects thermocouple wiring to the associated temperature-input hardware rather than independently processing turbine control logic.
Why is thermocouple polarity important during installation?
Thermocouple circuits depend on the correct relationship between the sensor conductors and the measurement input. Reversed or incorrectly assigned wiring can produce an incorrect temperature indication or abnormal channel behavior, so polarity and channel identification should be checked against the approved wiring documentation.
What can cause an abnormal temperature reading after replacing the terminal board?
Possible causes include incorrect channel assignment, loose or damaged field wiring, incorrect thermocouple polarity, a faulty sensor, termination problems, or an issue elsewhere in the associated Mark VI I/O path. Troubleshooting should therefore examine the complete signal path rather than replacing the terminal board repeatedly.
Is the IS210DTTCH1A a standalone temperature controller?
No. It is a terminal-board component within the Mark VI temperature-input architecture. The associated I/O hardware acquires the thermocouple signal, while the Mark VI control system uses the resulting measurement for configured monitoring, alarm, protection, or control functions.