Product Description

Overview

The Bently Nevada 149986-01 is a high-performance internal termination module engineered for the 3500/42M Proximitor Seismic Monitor. Designed for industrial machinery monitoring, this module allows direct connection of field sensors—such as proximity probes, accelerometers, or velocity transducers—directly to the 3500 rack, eliminating the need for external terminal blocks.

Key Features

Signal Integrity and Protection

• Maintains precise vibration signal fidelity for RMS and peak-to-peak measurements

• EMI/RFI shielding ensures reliable operation in electrically noisy industrial environments

Connectivity and Installation

• Direct internal termination reduces connection points and wiring errors

• Supports four independent channels aligned with 3500/42M architecture

• Compatible exclusively with 3500/42M monitors

Reliability and Environmental Tolerance

• Hot-swappable design for minimal maintenance downtime

• Industrial-grade operation, supporting temperatures from -30°C to +65°C

• Robust construction for high vibration and harsh plant conditions

Technical Specifications

Applications

Ideal for integration with machinery condition monitoring systems in power plants, refineries, and heavy industrial facilities. The module ensures accurate vibration data collection directly from field sensors with minimal wiring complexity.

FAQ

Q: Can this module be used with 3500 series monitors other than 42M?
A: No. The 149986-01 is exclusively compatible with the 3500/42M monitor series.

Q: Is software configuration required?
A: Yes. Use 3500 Rack Configuration Software to match sensor types. Incorrect settings may trigger "Invalid Machine Case" alarms.

Q: Can this module support SIL-rated systems?
A: It is compatible only with standard voltage operation. Higher voltages are restricted in SIL-certified installations.

Similar Modules Comparison:

• External Termination Block (ETB): Requires separate wiring to terminal strips; ideal for modular expansion.

• Internal Termination Block (ITB, 149986-01): Direct rear mounting reduces wiring points and improves signal integrity.