Description
GE IS200TVBAH2ABC
Technical Specifications
| Parameter | Specification |
|---|---|
| Function | Vibration Sensor Signal Interface |
| System Compatibility | Mark VI Speedtronic |
| Sensor Types Supported | Proximity probes, accelerometers, velocity transducers |
| Input Channels | Multiple vibration sensor inputs |
| Signal Conditioning | Preamplifier power supply and signal routing |
| Board Dimensions | Standard Mark VI terminal board form factor |
| Operating Temperature | 0°C to 60°C (32°F to 140°F) |
| Storage Temperature | -40°C to 85°C (-40°F to 185°F) |
| Humidity | 5% to 95% non-condensing |
| Power Supply | -24V DC or -28V DC probe power supply |
Functional Features
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Multi-Sensor Support: Interfaces with various vibration sensor types including eddy current proximity probes, seismic accelerometers, and velocity pickups
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Probe Power Supply: Provides constant current or constant voltage excitation for powered sensors
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Signal Routing: Distributes sensor signals to vibration processing cards in the VME rack
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Keyphasor Interface: Supports Keyphasor (once-per-revolution) signal inputs for phase reference
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Buffered Outputs: Provides buffered sensor outputs for external monitoring systems
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Fault Detection: Includes open circuit and short circuit detection for sensor health monitoring
Structural Characteristics
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High-density printed circuit board with precision analog signal traces
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BNC or terminal block connectors for sensor connections
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Coaxial cable support for high-frequency vibration signals
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Ruggedized construction for industrial environments
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Clear channel labeling and identification markings
Working Principle The terminal board receives raw vibration signals from field-mounted sensors. For eddy current proximity probes, the board supplies a -24V DC constant current excitation to the probe and receives the modulated signal representing shaft displacement. Accelerometer signals are AC-coupled to remove DC bias. The board routes these signals to the vibration processing card (such as the IS200VVIBH1C) where signal conditioning, filtering, and analysis occur. The Keyphasor signal provides a phase reference for synchronous vibration analysis.
Installation Requirements
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Mount in vibration monitoring section of Mark VI rack
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Use coaxial cables for proximity probe connections to maintain signal integrity
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Ensure proper shield grounding at single point to avoid ground loops
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Maintain separation between high-voltage power and low-level sensor signals
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Follow proper ESD handling procedures during installation
Application Scenarios
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Gas turbine bearing vibration monitoring
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Steam turbine shaft vibration measurement
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Compressor rotor dynamics monitoring
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Generator bearing condition assessment
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Industrial rotating machinery protection systems
Usage Precautions
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Never connect or disconnect sensors while probe power is active
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Ensure proper sensor calibration before system commissioning
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Monitor for sensor fault alarms indicating wiring or sensor failure
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Keep sensor cables away from high-voltage power cables
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Verify correct power supply voltage for specific sensor types
