This terminal board provides vibration signal conditioning, isolation, and buffering for the Mark VIe vibration monitoring architecture. It supports multiple vibration sensor types and enables simultaneous signal distribution to the Mark VIe PVIB module, Bently Nevada 3500 monitoring racks, and third-party diagnostic equipment, while maintaining signal integrity and robust fault detection.

Core Functions

Vibration signal conditioning

Anti-aliasing filtering

EMI / RFI protection

8-channel sensor signal input

Eddy current displacement

Velocity (Velomitor)

Acceleration sensors

Buffered signal outputs

Compatible with Bently Nevada 3500 monitoring systems

Open-circuit detection

Pull-up bias monitoring for sensor line integrity

BNC interface

Supports direct connection to third-party vibration monitoring and portable diagnostic equipment

Redundancy Configuration

Designed for Simplex (single-channel) operation in Mark VIe systems

In TMR architectures, vibration signals can be routed to three independent PVIB modules, enabling:

Signal replication

Triple voting logic at the system level

Sensor Adaptation

Eddy current displacement sensors

Proximitor interface

24 V DC sensor power supply

Signal range: –20 V to +20 V

Velocity sensors

Velomitor AC speed signal input

Acceleration sensors

DC acceleration signal input

Interface & Connectivity

PVIB module interface:

37-pin connector for direct docking with Mark VIe PVIB vibration I/O module

Buffered output interfaces:

9-pin + 25-pin connectors for Bently Nevada 3500 system

Third-party monitoring interface:

8-channel BNC connectors

Field wiring:

Detachable terminal blocks for vibration sensor connections

Signal Conditioning Features

Each channel is independently equipped with:

Anti-aliasing filtering

EMI shielding

Pull-up bias for open-circuit detection

Signal amplification

Signal level conversion
This per-channel isolation ensures high measurement accuracy and fault tolerance.

Power Supply Requirements

Powered from Mark VIe system +28 V DC

Compatible with traditional ±15 V DC sensor architectures

Typical power consumption: approximately 10 W

Environmental Specifications

Operating temperature: 0 °C to +60 °C

Storage temperature: –40 °C to +85 °C

Mechanical Characteristics

Form factor: Mark VIe standard vibration I/O terminal board

Dimensions (approx.): 229 × 330 × 51 mm

Weight (approx.): 1.45 kg (3.2 lb)

Installation & Protection

Installation method:

Mark VIe standard I/O rack slot installation

Supports hot swapping

Protection rating: IP20, for installation inside control cabinets

PCB protection:

Conformal coating for enhanced resistance to moisture, dust, and contaminants

Compatibility & Software Support

Fully compatible with Mark VIe PVIB vibration I/O modules

Direct interface with Bently Nevada 3500 machinery protection systems

Supports ToolboxST for configuration, diagnostics, and system maintenance

Typical Applications

Turbine vibration monitoring

Shaft displacement, casing vibration, and bearing condition monitoring

Integrated control and protection architectures combining Mark VIe and Bently Nevada 3500

Online condition monitoring and offline vibration diagnostics

GE IS200TVBAH2ACC｜Vibration Input Terminal Board｜