Description
Overview
The IS200TVBAH2ACC Vibration Input Terminal Board is a precision‑engineered monitoring module developed by General Electric for the Mark VIe turbine control platform. Designed to acquire and condition vibration‑related analog signals, this board plays a central role in machinery protection systems for gas and steam turbines. Its rugged construction and conformal‑coated PCB ensure dependable operation in harsh industrial environments.
Functional Characteristics
This terminal board supports 16 independent analog input channels, each designed for high‑accuracy vibration measurement. With a measurement tolerance of ±0.1%, the IS200TVBAH2ACC provides reliable data for detecting early‑stage mechanical issues such as rotor imbalance, bearing degradation, and structural resonance.
The board interfaces with seismic transducers, proximity probes, and other vibration‑sensing devices. Its circuitry includes noise‑suppression and EMI‑shielding features to maintain signal integrity in electrically noisy turbine enclosures. As part of the Mark VIe architecture, it supports Triple Modular Redundancy (TMR) configurations, enabling fault‑tolerant monitoring for critical rotating equipment.
Environmental and Electrical Performance
-
Operating temperature: −40°C to +70°C
-
Conformal‑coated PCB for moisture and contaminant resistance
-
Surge withstand capability compliant with IEEE C37.90
-
Designed for continuous operation in high‑vibration turbine housings
System Integration
The IS200TVBAH2ACC integrates seamlessly with Mark VIe distributed I/O networks. Its TVBA functional design includes automated calibration routines and built‑in self‑diagnostics, reducing maintenance requirements and improving long‑term system availability. The board’s mechanical layout supports standard Mark VIe mounting hardware and wiring practices.
Applications
-
Gas turbine vibration monitoring
-
Steam turbine protection systems
-
Combined‑cycle plant condition monitoring
-
High‑speed rotating machinery diagnostics
-
TMR‑based safety and protection architectures
Technical Specifications Table
| Parameter |
Specification |
| Model |
IS200TVBAH2ACC |
| Product Type |
Vibration Input Terminal Board |
| Series |
Mark VIe |
| Input Channels |
16 analog vibration inputs |
| Accuracy |
±0.1% |
| Sensor Compatibility |
Seismic sensors, proximity probes |
| Operating Temperature |
−40°C to +70°C |
| PCB Protection |
Conformal coating |
| EMI Protection |
Shielded circuitry |
| Dimensions |
33 × 17.8 × 5.5 cm |
| Weight |
1.42 kg |
| Surge Standard |
IEEE C37.90 |
| Origin |
USA |
| Status |
Active |
FAQ
Q: What types of sensors can be connected to the IS200TVBAH2ACC A: It supports seismic vibration sensors, proximity probes, and other analog vibration transducers.
Q: Does the board support TMR configurations A: Yes. It is designed for Triple Modular Redundancy in Mark VIe protection systems.
Q: Is the board suitable for high‑humidity environments A: Yes. Its conformal‑coated PCB provides strong resistance to moisture and contaminants.
