Bently Nevada 87199-01: Proximity Probe System Component for Machinery Monitoring

Product Description

The Bently Nevada 87199-01 is a high-precision proximity probe system component, a key part of Bently Nevada’s comprehensive machinery protection and condition monitoring solutions. This component is specifically designed to work with eddy-current proximity probe systems, which are widely used to measure shaft displacement, vibration, and position in rotating machinery. As a critical element in the probe system, it ensures accurate signal transmission and sensor performance, enabling reliable detection of machinery faults such as unbalance, misalignment, and bearing wear. With rugged construction and compatibility with Bently Nevada’s monitoring systems, it plays a vital role in maintaining the health and reliability of industrial assets.

Product Parameters

Parameter	Specification
Probe Type	Eddy-current proximity probe component
Compatibility	Works with Bently Nevada 3300, 3500, and 1900 series monitoring systems
Operating Temperature	-30°C to +121°C (-22°F to +250°F)
Measurement Range	Dependent on system configuration (typically 0–2 mm or 0–5 mm linear range)
Output Signal	Analog voltage proportional to target distance (-2 VDC to -10 VDC)
Sensitivity	8 V/mm ± 0.5 V/mm (200 V/inch ± 12.5 V/inch) typical
Cable Length	Configurable based on application (standard options available)

Product Specifications

Series

The 87199-01 is part of Bently Nevada’s extensive family of proximity probe systems, which includes probes, extension cables, drivers, and accessories. This family is integral to Bently Nevada’s machinery protection solutions, complementing the 3300, 3500, and 1900 series monitoring systems. Renowned for precision, reliability, and compatibility, these proximity probe systems are trusted globally to monitor critical rotating machinery in industries such as power generation, oil & gas, and chemical processing. The 87199-01 enhances the series by providing a high-quality component that ensures accurate signal capture and transmission, foundational to effective machinery condition monitoring.

Features

High-Precision Measurement

Tungsten carbide probe tip and stable sensitivity (8 V/mm typical) ensure accurate detection of small shaft movements, critical for identifying early signs of machinery faults.

Rugged Construction

AISI 316 stainless steel body and FEP-insulated cable resist corrosion, temperature extremes, and mechanical wear, ensuring reliable performance in harsh environments.

EMI/RFI Immunity

Triaxial shielded cable minimizes electromagnetic and radio frequency interference, ensuring clean signal transmission in electrically noisy industrial settings.

Wide Temperature Range

Operation from -30°C to +121°C enables deployment in extreme temperature environments, including turbine enclosures and high-heat process areas.

System Compatibility

Seamless integration with Bently Nevada 3300, 3500, and 1900 series monitoring systems, facilitating easy integration into existing machinery protection setups.

Function

The primary function of the 87199-01 is to enable accurate measurement of shaft displacement, vibration, and position in rotating machinery. As part of an eddy-current proximity probe system, it generates an electromagnetic field when energized. When a conductive target (e.g., a rotating shaft) moves relative to the probe tip, the eddy currents induced in the target change, altering the probe’s impedance. This change is converted into a proportional voltage signal, which is transmitted to monitoring systems for analysis. This signal provides critical data on shaft movement, enabling detection of faults such as misalignment, imbalance, and bearing degradation.

Use

In industrial settings, the 87199-01 is installed as part of a proximity probe system. The probe is mounted near rotating shafts (e.g., turbine rotors, compressor shafts) using threaded fittings, with the tip positioned at a precise distance from the shaft surface. The shielded cable connects the probe to a signal conditioner or monitoring system module, which processes the voltage signal into actionable data. Operators and maintenance teams use this data to monitor machinery health in real time, while historical trends help predict maintenance needs and prevent unplanned downtime.

Application Fields

Power Generation

Monitors shaft displacement and vibration in steam/gas turbines, generators, and feedwater pumps, detecting rotor instability and bearing wear to ensure reliable electricity production.

Oil and Gas

Measures axial and radial shaft movement in centrifugal compressors, pipeline pumps, and gas turbines, supporting safe and efficient hydrocarbon production and transportation.

Chemical Processing

Tracks shaft position in agitators, mixers, and reactor pumps, ensuring equipment alignment and preventing seal failures that could lead to hazardous material leaks.

Pulp and Paper

Monitors roller vibration and position in paper machines, detecting misalignment or bearing degradation to maintain product quality and reduce production waste.

Mining and Metals

Monitors crusher and conveyor motor shafts, providing early warning of imbalance or bearing failure to minimize downtime in rugged mining operations.

In summary, the Bently Nevada 87199-01 is a vital component of proximity probe systems, enabling accurate measurement of rotating machinery parameters. Its precision, rugged design, and system compatibility make it essential for industries seeking to protect critical assets and optimize maintenance strategies through reliable condition monitoring.