GE IS200VRTDH1DAB – VMR RTD Input Card | Mark VI Turbine Control Platform
Engineering Background
The GE IS200VRTDH1DAB is a Resistance Temperature Detector (RTD) input card designed for the Mark VI Turbine Control System — GE’s flagship distributed control architecture for gas turbines, steam turbines, and combined-cycle power generation units. The Mark VI platform replaced the earlier Mark V series and remains the industry benchmark for turbine protection and sequencing logic in utility-scale and industrial power plants worldwide.
Product Positioning
The VMR RTD Card serves as the thermal sensing backbone of the Mark VI I/O subsystem. It acquires multi-channel RTD signals from turbine hot-gas-path sensors, bearing temperature probes, and exhaust thermocouples, converting analog resistance values into precision digital data for the Mark VI controller. For procurement engineers managing turbine fleet maintenance or capital spares programs, the IS200VRTDH1DAB is a critical long-lead item that directly impacts unit availability and MTTR targets.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | IS200VRTDH1DAB |
| Series / Platform | GE Mark VI Turbine Control System |
| Card Type | VMR – RTD Input Module |
| Manufacturer | General Electric (GE Energy / GE Vernova) |
| Input Type | Resistance Temperature Detector (RTD), 3-wire / 4-wire |
| RTD Compatibility | PT100 (IEC 60751), PT1000, Ni120 |
| Number of Input Channels | Up to 16 RTD channels (configuration-dependent) |
| Measurement Range | –200 °C to +850 °C (PT100 standard range) |
| Resolution | 0.1 °C |
| Accuracy | ±0.5 °C typical (at calibrated reference) |
| Communication Bus | Mark VI IONet (proprietary GE I/O backplane) |
| Form Factor | VME-style plug-in card, Mark VI I/O rack compatible |
| Operating Voltage | +5 VDC / ±15 VDC (supplied via I/O rack backplane) |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | –40 °C to +85 °C |
| Humidity | 5% to 95% RH, non-condensing |
| Weight | Approx. 300 g |
| Certifications | CE, UL (per GE Mark VI system certification) |
| Revision | H1DAB (hardware revision suffix) |
Proven Application Environments
- Gas Turbine Power Plants – Hot-gas-path and exhaust temperature monitoring on GE Frame 6, Frame 7, Frame 9 series turbines
- Steam Turbine Units – Bearing metal temperature and steam chest RTD acquisition
- Combined-Cycle Plants (CCPP) – Integrated thermal monitoring across gas turbine, HRSG, and steam turbine trains
- Compressor Stations – Pipeline compressor driver temperature surveillance
- Industrial Cogeneration – Process heat recovery and turbine protection in refinery and petrochemical facilities
- LNG Terminals – Cryogenic and ambient temperature monitoring in liquefaction train control systems
Engineering Advantages
- High-Channel-Density RTD Acquisition – Consolidates multiple RTD inputs on a single card, reducing rack space and wiring complexity
- 3-Wire Lead Compensation – Eliminates lead resistance error for accurate field measurements over long cable runs
- Hot-Swap Compatible – Supports online card replacement in redundant Mark VI configurations without turbine shutdown
- Integrated Signal Conditioning – On-board excitation current source and A/D conversion minimize external signal conditioning hardware
- Diagnostic Self-Test – Built-in open-circuit and short-circuit detection per channel, reported to Mark VI HMI alarm system
- Backward Compatibility – Interoperable with existing Mark VI I/O racks; no rack modification required for drop-in replacement
System Architecture & Signal Flow
The IS200VRTDH1DAB resides in the Mark VI I/O rack and communicates with the VCMI (VME Communication Module Interface) or VCCI controller card via the IONet backplane. Signal flow is as follows:
- Field RTD sensors → terminal board (TBRT or equivalent) → IS200VRTDH1DAB card input connectors
- On-board excitation current applied; resistance measured via 3-wire or 4-wire Kelvin sensing
- Analog-to-digital conversion → engineering-unit scaling (°C / °F) → IONet data frame
- Controller (VCMI/VCCI) reads temperature values → Mark VI application logic (protection trips, alarm setpoints, load control)
- Data forwarded to Mark VI HMI (ToolboxST / Cimplicity) for operator display and historian archiving
In TMR (Triple Modular Redundant) configurations, three IS200VRTDH1DAB cards operate in parallel with voted outputs, ensuring no single card failure causes a spurious trip.
Sourcing & Quality Verification
- Genuine OEM Hardware – All units sourced from verified industrial surplus channels, decommissioned plant spares, or authorized distributors; no counterfeit or refurbished-as-new misrepresentation
- Pre-Shipment Functional Test – Each card bench-tested for power-up, channel continuity, and communication handshake prior to dispatch
- Visual & Physical Inspection – PCB, connectors, and firmware label inspected; any cosmetic anomalies disclosed in advance
- ESD-Safe Packaging – Shipped in anti-static bags with foam cushioning and moisture barrier; compliant with IEC 61340-5-1
- Traceability Documentation – Part number, revision, and serial number recorded; certificates of conformance available on request
- Warranty – 12-month operational warranty against manufacturing defects; DOA replacement within 30 days
Procurement Process
- Inquiry – Submit your part number, required quantity, and delivery timeline via email or the contact form below
- Quotation – Receive a formal quotation with unit price (HKD / USD), lead time, and shipping options within 24 business hours
- Order Confirmation – Purchase order accepted; payment via T/T bank transfer or approved credit terms for qualified accounts
- Quality Check & Dispatch – Pre-shipment test completed; tracking number and packing list issued within 2 business days of payment clearance
- Delivery – DHL / FedEx express (3–7 days international) or sea freight for bulk orders; customs documentation provided
- After-Sales Support – Technical assistance available for installation verification and Mark VI configuration alignment
Technical FAQ
Q: Is the IS200VRTDH1DAB compatible with Mark VIe systems?
A: The IS200VRTDH1DAB is designed for the Mark VI platform. Mark VIe uses a different I/O architecture (IONET Ethernet-based). Cross-compatibility requires engineering verification — contact us with your system configuration details.
Q: Can this card replace an IS200VRTDH1CAB or other revision suffixes?
A: Hardware revision suffixes (CAB, DAB, etc.) may indicate PCB or firmware differences. In most cases drop-in replacement is feasible, but we recommend confirming with your Mark VI system integrator or GE service engineer before installation.
Q: What terminal board is required for field wiring?
A: The IS200VRTDH1DAB typically pairs with the TBRT (Terminal Board RTD) or equivalent Mark VI terminal board. Confirm your existing rack wiring before ordering.
Q: Do you provide ToolboxST configuration support?
A: We provide hardware supply and basic technical guidance. For ToolboxST application-level configuration, we recommend engaging a GE-certified Mark VI service partner.
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 1 unit. Volume pricing available for orders of 3 units or more — request a bulk quotation.
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