Description
🔹 Product Description
The GE IS200TRTDH1C, identified in the listing as IS200TRTDH1CBB, is an RTD Input Terminal Board for the GE Mark VI Speedtronic turbine control system. The TRTD board provides field termination and signal conditioning for resistance temperature detector inputs and connects to the VRTD I/O processor through two D-type cable connections. The H1C version is specifically the simplex configuration.
The board supports 16 three-wire RTD inputs through two 24-position terminal blocks. RTD signals are conditioned and transmitted to the VRTD processor, which converts the measured signals into digital temperature values for the Mark VI controller. The board also incorporates noise-suppression circuitry and does not require user jumper or hardware configuration settings.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | IS200TRTDH1C / IS200TRTDH1CBB |
| Series | Mark VI Speedtronic |
| Product Name | RTD Input Terminal Board |
| Functional Acronym | TRTD |
| Board Type | RTD Input / Terminal Board |
| RTD Inputs | 16 |
| Input Type | 3-Wire RTD |
| Redundancy | Simplex |
| Processor Interface | VRTD |
| Connectors | 2 × D-type / DC-37 |
| Terminal Blocks | 2 × 24-position |
| Place of Manufacture | USA |
| Product Status | Legacy / Replacement Spare |
| Original Country | United States |
| Power | Supplied through the associated Mark VI I/O interface |
| Discontinued | Legacy Mark VI component |
⚙️ Main Functions
• Provides field termination for RTD temperature sensors
• Supports 16 three-wire RTD inputs
• Interfaces with the GE VRTD processor
• Provides two D-type cable connections to the I/O processor
• Conditions RTD signals before processing
• Provides noise and surge suppression for RTD inputs
• Supports grounded or ungrounded RTD sensors
• Uses two 24-screw terminal blocks for field wiring
• Provides simplex RTD measurement architecture
• Supports turbine temperature monitoring within the Mark VI control system
❓ Q&A
Q: What is the IS200TRTDH1C?
A: It is a GE Mark VI TRTD RTD Input Terminal Board used to terminate and condition RTD temperature signals.
Q: How many RTD inputs does it support?
A: The board supports 16 three-wire RTD inputs.
Q: Is the IS200TRTDH1C a TMR board?
A: No. The H1C version is the simplex TRTD configuration. GE documentation identifies the H1B version as the TMR configuration.
Q: Which processor does the board connect to?
A: In a Mark VI system, the TRTDH1C connects to the VRTD processor through two cables.
Q: What type of RTD wiring is supported?
A: The board is designed for three-wire RTD inputs. The associated processing architecture converts the RTD measurements into digital temperature values for the controller.
Q: What should be checked before replacement?
A: Verify the complete IS200TRTDH1CBB identification, hardware revision, simplex configuration, terminal wiring, connector arrangement, and compatibility with the existing VRTD processor before installation.
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