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GE IS200TVIBH2BBB Turbine Vibration Input/Output Module

The GE IS200TVIBH2BBB, also cataloged as the IS200TVIB Turbine Vibration Input/Output Module, operates as a dedicated hardware component for vibration signal acquisition and mechanical condition monitoring within the GE Mark VI Speedtronic Turbine Control System. The module processes proximity probe, velocity sensor, accelerometer, seismic, and phase reference signals.

Hardware Specifications

Parameter	Specification
Model	IS200TVIBH2BBB
Brand	GE
Origin	United States
Weight	0.5 kg
Operating Temp	-30 to +65 deg C
Power Consumption	Not specified
Series	Mark VI Speedtronic Turbine Control System
Module Type	Turbine Vibration Input/Output Module
Probe Capacity	Up to 14 Bently Nevada vibration probes
Input Types	Proximity probes, velocity sensors, accelerometers, seismic sensors, phase reference probes
Channels	8 vibration input channels (typical)
Input Impedance	>50 kOhm for voltage inputs
Frequency Response	0.5 Hz to 10 kHz depending on sensor type
Dynamic Range	Approx. 80 dB
Sampling Rate	Up to 20 kS/s per channel
Resolution	16-bit minimum
Accuracy	+/-1% of reading
Power Supply	-28 VDC nominal, regulated -23 to -26 VDC output
Connectivity	14 plug connectors, BNC ports for portable diagnostic equipment
Protection	EMI/RFI shielding, ground isolation, short-circuit protection

Rotor Dynamics Signal Processing Characteristics

The IS200TVIBH2BBB interfaces with turbine vibration sensors and processes dynamic mechanical signals for the Mark VI control architecture. The module supports vibration analysis using proximity probe inputs, including eddy-current probe signal conditioning and scaling functions required for shaft displacement measurement.

Signal conditioning circuits maintain channel separation and reduce cross-talk effects between vibration measurement paths. The module supports configurable vibration alert and danger thresholds for mechanical protection functions within simplex and TMR control configurations.

Frequently Asked Questions

Q: What sensor types can be connected to the IS200TVIBH2BBB module?
A: The module supports proximity probes, velocity sensors, accelerometers, seismic sensors, and phase reference probes for turbine vibration monitoring.

Q: Does the module provide isolated vibration signal processing channels?
A: The module uses ground isolation and EMI/RFI shielding methods to reduce interference between vibration signal channels.

Q: What vibration signal sampling capability is provided by the module?
A: The module supports sampling rates up to 20 kS/s per channel with a minimum 16-bit signal resolution.

Field Installation Guidelines

Install the IS200TVIBH2BBB in the designated GE Mark VI rack position and verify all backplane connections before energizing the control system. Confirm sensor wiring polarity and shielding connections before connecting vibration probes.

Route vibration sensor cables separately from high-current power conductors and switching circuits to reduce electromagnetic interference. Connect cable shields according to the turbine control cabinet grounding scheme and avoid multiple ground paths.

Verify probe gap settings, sensor signal levels, and channel configuration parameters during commissioning. Inspect connectors, BNC interfaces, and terminal points for contamination or mechanical damage before operation.

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