Product Description

The 3500/22M (138607-01) serves as a primary communication and dynamic data acquisition hub within the 3500 Machinery Protection System developed by Bently Nevada.

As a Transient Data Interface (TDI), this module bridges hardware monitor modules and advanced diagnostic platforms such as System 1.

Unlike standard rack interface modules, the 138607-01 supports high-resolution transient waveform capture during startup, shutdown, and coast-down events. With 16-bit A/D resolution across four independent channels, it ensures highly accurate digitization of vibration and dynamic signals for predictive maintenance and root cause analysis.

Technical Specifications

Operating Capabilities

The 3500/22M (138607-01) is a key enabler of advanced condition monitoring strategies. It supports configurable trigger mechanisms based on amplitude thresholds or signal slope, ensuring waveform capture during abnormal or intermittent machine events.

Key capabilities include:

• Event-triggered transient recording

• High-fidelity steady-state waveform capture

• ASCII and binary data output formats

• Flexible integration with third-party systems

• Advanced orbit, spectrum, and timebase analysis via System 1

These features make the module especially valuable for identifying early-stage bearing faults, imbalance, misalignment, resonance, and other dynamic instabilities.

Technical FAQ

Q1: What is the role of the 138607-01 in a TMR (Triple Modular Redundant) rack?

A: In a TMR configuration, the 3500/22M provides a unified communication and data acquisition interface while maintaining strict separation of the redundant protection logic executed independently by each monitor module. Protection integrity remains uncompromised.

Q2: Does the 138607-01 support IEPE sensors directly?

A: Yes. The module is designed to directly power and interface with IEPE accelerometers, supplying the required constant-current excitation without the need for external signal conditioning hardware.