Description
Product Parameters
| Parameter | Specification |
|---|---|
| Brand / Series | GE Mark VIe Speedtronic |
| Model | IS200TVIBH2B |
| Vibration Channels | 8 independent channels |
| Input Signal Types | Accelerometer (IEPE/ICP), velocity pickups, proximity probes |
| Frequency Range | 0.5 Hz – 12 kHz — upgraded from 1 Hz – 10 kHz |
| Input Range | ±10 V (programmable scaling) |
| ADC Resolution | 24-bit delta-sigma |
| Sampling Rate | 1–25 kHz — upgraded from 20 kHz |
| Accuracy | ±0.03% FS — upgraded from ±0.05% FS |
| Isolation | 2000 VAC (field-to-system) — upgraded from 1500 VAC |
| CMRR | >110 dB @ 50/60 Hz — upgraded from >100 dB |
| Diagnostics | Open-circuit detection, short-circuit detection, signal out-of-range monitoring, sensor bias monitoring, reference validation |
| Status Indication | 8 green LEDs (channel active), 8 red LEDs (channel fault), 2 red summary fault LEDs, 1 yellow LED (reference/calibration status) |
| Operating Temperature | –40°C to +70°C — upgraded from –30°C to +65°C |
| Storage Temperature | –55°C to +85°C |
| Mounting | VME rack-mount terminal board with front-panel I/O connectors |
| Backplane Interface | VME64x (A24/A32, D16/D32/D64) |
| EMC Compliance | IEC 61000-4 Level 4 |
Advantages & Key Features
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High Channel Density: 8 independent vibration channels in a single VME slot—double the density of competing 4-channel vibration modules.
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Versatile Signal Compatibility: Supports accelerometers, velocity pickups, and proximity probes.
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High-Speed Sampling: Up to 25 kHz sampling rate for high-frequency vibration analysis—upgraded from 20 kHz.
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Wide Frequency Range: 0.5 Hz to 12 kHz covers slow roll to high-speed vibration components.
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Enhanced Accuracy: ±0.03% FS provides higher measurement precision.
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Extended Temperature Range: –40°C to +70°C operation makes IS200TVIBH2B suitable for extreme environments.
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Enhanced Isolation: 2000 VAC isolation and >110 dB CMRR provide superior protection.
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Comprehensive Diagnostics: Open-circuit, short-circuit, out-of-range, sensor bias monitoring, and reference validation per channel.
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ToolboxST Integration: Full configuration, monitoring, and diagnostics via GE ToolboxST.
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Drop-In Replacement: Direct replacement for IS200TVIBH2A and earlier vibration monitoring terminal boards.
Application Fields
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Gas & Steam Turbines (GE Frame 6B/7EA/9E/HA): Shaft vibration monitoring, bearing vibration monitoring, overspeed detection.
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Compressor Stations: Compressor shaft vibration monitoring.
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Aeroderivative Turbines: Vibration monitoring and protection.
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Generator Monitoring: Generator bearing vibration monitoring.
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Arctic & Desert Installations: Extreme-environment vibration monitoring applications.
Comparison with Competing Products
| Feature | GE IS200TVIBH2B | GE IS200TVIBH2A | Competitor A (Vibration Module) | Competitor B (Vibration Monitor) |
|---|---|---|---|---|
| Channels | 8 | 8 | 4 | 2 |
| Frequency Range | 0.5 Hz – 12 kHz | 1 Hz – 10 kHz | 1 Hz – 5 kHz | 5 Hz – 5 kHz |
| Sampling Rate | 25 kHz | 20 kHz | 10 kHz | 5 kHz |
| Accuracy | ±0.03% FS | ±0.05% FS | ±0.1% FS | ±0.1% FS |
| Diagnostics | Open, short, out-of-range, bias, reference | Open, short, out-of-range, bias | Open only | Out-of-range only |
| Isolation | 2000 VAC | 1500 VAC | 1000 VAC | 500 VDC |
| Operating Temp | –40°C to +70°C | –30°C to +65°C | 0°C to 50°C | 0°C to 50°C |
| Reference Validation | Yes | No | No | No |
Key Advantage: IS200TVIBH2B provides 8 vibration channels with wider frequency range, higher sampling rate, enhanced accuracy, 2000 VAC isolation, extended –40°C to +70°C temperature range, and comprehensive diagnostics including reference validation—making it ideal for high-precision turbine vibration monitoring in extreme environments.
Selection Guidelines & Recommendations
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Channel Count: Up to 8 vibration channels per board.
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Sensor Type: Configure per channel for accelerometer, velocity pickup, or proximity probe.
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Vibration Scaling: Program scaling factors in GE ToolboxST for engineering units.
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Sampling Rate: Configure based on expected vibration frequencies.
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Diagnostic Configuration: Enable reference validation for critical vibration monitoring circuits.
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Controller Firmware: Requires Mark VIe processor firmware v8.5 or later.
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Wiring Guidelines: Use shielded twisted-pair cables for vibration sensors.
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Spare Strategy: Keep one spare per turbine; lead times 8–12 weeks.
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Retrofit: Direct replacement for IS200TVIBH2A—regenerate configuration in GE ToolboxST to access enhanced features.
Important Cautions
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No Hot-Swap: De-energize rack before insertion/removal.
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Sensor Polarity: Observe correct polarity for IEPE/ICP accelerometers and proximity probes.
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Cable Length: For vibration sensors, use low-capacitance cables for long runs.
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Grounding: Connect AGND to Mark VIe system ground at single star point.
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Shield Termination: Ground sensor cable shields only at cabinet end.
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ESD Handling: Use grounded wrist straps; field repair not possible.
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Temperature Rating: Verify cabinet ambient does not exceed +70°C or fall below –40°C.
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Reference Validation: Yellow LED indicates reference drift—schedule factory recalibration if illuminated.
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Channel Mapping: With 8 channels, verify field wiring maps to correct ToolboxST channel numbers.
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