Bently Nevada 86739-01 Dual Vibration Monitor

Product Description

The Bently Nevada 86739-01 Dual Vibration Monitor delivers reliable, real-time monitoring of vibration in critical rotating machinery. Designed for dual-channel operation, it can simultaneously process signals from two independent vibration sensors. Moreover, it integrates seamlessly into the Bently Nevada 3500 Series rack system, providing immediate feedback to displays, alarms, and control outputs.

This module supports both proximity probes and velocity transducers, offering versatile measurement capabilities for radial, axial, and casing vibration. Its buffered outputs allow connection to portable analyzers, enabling advanced diagnostics and condition monitoring. In addition, programmable alarm setpoints ensure flexible protection strategies for turbines, compressors, pumps, and motors.

Engineered to meet API 670 standards, the 86739-01 guarantees high reliability and early detection of mechanical anomalies, reducing unplanned downtime and maintenance costs. For instance, operators can quickly detect imbalance, misalignment, or bearing faults, ensuring safe and efficient operation of critical assets.

Key Features

• Dual independent vibration channels for optimized rack usage

• Real-time vibration monitoring for accurate diagnostics

• Buffered outputs compatible with portable analyzers

• Programmable alarm thresholds for high and danger levels

• Supports proximity probes and velocity transducers

• API 670 compliant for machinery protection standards

• Operating temperature: –35 °C to +65 °C

Technical Specifications

Model: 86739-01
Module Type: Dual Vibration Monitor
System Compatibility: Bently Nevada 3500 Series
Channels: 2 independent vibration channels
Supported Inputs: Proximity probes, velocity transducers
Measurement Types: Radial, axial, and casing vibration (sensor dependent)
Outputs:

• 4–20 mA proportional outputs

• High and danger level alarm relays

• Buffered transducer signals for diagnostics
  Compliance: API 670 Machinery Protection Systems
  Operating Temperature: –35 °C to +65 °C
  Mounting: Rack-mounted in 3500 system
  Applications: Continuous online monitoring of turbines, compressors, pumps, and motors

Typical Applications

• Real-time vibration protection for industrial turbines

• Continuous monitoring of compressors and motors

• Early fault detection in pumps and rotating equipment

• Integration into centralized machinery protection systems

FAQ

Q1: What sensors can I use with the 86739-01?
A1: The module supports both proximity probes and velocity transducers.

Q2: Can it operate in harsh industrial environments?
A2: Yes, it functions reliably between –35 °C and +65 °C, suitable for extreme conditions.

Q3: Is it compliant with industry standards?
A3: Yes, it meets API 670 requirements for machinery protection systems.

Q4: Can it monitor more than one channel simultaneously?
A4: Yes, it provides two independent vibration channels for dual monitoring.

Q5: Can I connect it to portable analyzers?
A5: Yes, buffered outputs allow connection to diagnostic instruments for advanced analysis.