GE IS200TVIBH2B IS200TVIBH2BBC Vibration Term Board

Core Function and System Role

The GE IS200TVIBH2B terminates vibration sensor signals for Mark VI systems. Specifically, this board connects proximity probes and accelerometers. Moreover, it conditions raw sensor outputs for the main controller. The IS200TVIBH2BBC variant includes enhanced filtering for noisy environments.

Technical Specifications Overview

This vibration term board features eight independent input channels. Each channel accepts signals from eddy current or piezoelectric sensors. Furthermore, the board provides 16-bit resolution for precise amplitude measurement.

Connector Layout and Component Count

The board uses two terminal blocks for sensor wiring connections. For instance, block TB1 handles channels 1 through 4. Meanwhile, block TB2 manages channels 5 through 8. Two 50-pin D-sub connectors route conditioned signals to the controller. The IS200TVIBH2BBC adds six low-pass filter circuits for noise rejection.

Energy Storage and Signal Integrity

This vibration board includes local capacitance for stable signal conditioning. Specifically, eight 100 µF capacitors filter the 24 Vdc supply. Therefore, the board maintains accurate readings during power fluctuations. Additionally, onboard LED indicators show power and channel status. For example, a green LED confirms proper logic power. Yellow LEDs illuminate when any channel detects vibration above a preset threshold.

Diagnostic Features and Fault Detection

The board continuously checks each sensor for open or short circuits. Consequently, it detects probe wiring faults within 10 milliseconds. Moreover, the GE IS200TVIBH2B IS200TVIBH2BBC includes self-test circuitry for verification. This feature injects a calibration signal to validate each channel. An onboard status register reports all diagnostic data to the main controller.

Maintenance and Hot Replacement

You can replace this vibration board without powering down the turbine. Thus, mean time to repair remains under ten minutes. The board stores its filter settings in non-volatile memory. Therefore, configurations persist through power cycles and board replacements.

Industrial Applications

This vibration term board works inside GE Mark VI monitoring panels. For reliable GE vibration monitoring, the IS200TVIBH2B and IS200TVIBH2BBC deliver exceptional performance. They provide critical shaft monitoring for steam and gas turbine rotating machinery.