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SKU: 330104-00-07-05-02-00

Bently Nevada 3300 XL 8 mm Proximity Probe 330104-00-07-05-02-00

The Bently Nevada 330104-00-07-05-02-00 is a 3300 XL 8 mm proximity probe featuring an M10x1 metric thread and a 0.5-meter total length. Engineered for precision vibration and position monitoring, this sensor provides reliable displacement data for critical turbines and compressors in harsh industrial environments.

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Product Overview

The Bently Nevada 330104-00-07-05-02-00 serves as a high-precision transducer within the 3300 XL 8 mm Proximity Transducer System. This eddy current sensor measures the static and dynamic distance between the probe tip and a conductive target material. Consequently, it enables industrial operators to monitor vibration, axial position, and speed in critical rotating machinery. By providing real-time displacement data, this probe allows maintenance teams to identify mechanical irregularities before they lead to catastrophic equipment failure.

Technical Specifications and Configuration

The specific part number 330104-00-07-05-02-00 denotes a specific physical configuration designed for industrial installation.

  • Model Number: 330104
  • Probe Thread: M10 x 1 Metric Thread
  • Unthreaded Length: 0 mm
  • Overall Case Length: 70 mm
  • Total Length: 0.5 meter (1.6 feet)
  • Connector Option: Miniature coaxial ClickLoc connector with connector protector
  • Agency Approval: Standard (Non-hazardous area)
  • Sensor Tip Diameter: 8 mm
  • Linear Range: 2.0 mm (80 mils)
  • Operating Temperature: -51°C to +177°C

Industrial Applications and Functional Benefits

Industrial facilities utilize these probes primarily in Turbine Supervisory Instrumentation (TSI) systems to safeguard high-speed assets. Furthermore, because the probe features a robust polyphenylene sulfide (PPS) tip, it maintains structural integrity even when exposed to corrosive lubricants or high-temperature environments.

Specifically, the 330104 series excels in monitoring the following:

  • Radial vibration in fluid-film bearing machines
  • Thrust position measurements in steam and gas turbines
  • Shaft eccentricity and differential expansion
  • Phase reference and speed sensing (Keyphasor) applications

Furthermore, the 3300 XL system offers a significant improvement in moisture resistance compared to previous generations. This ensures that the sensor maintains signal stability in humid or oil-mist environments, which directly enhances the accuracy of the diagnostic data sent to the monitoring rack.

Operational Integration

The probe interfaces directly with a 3300 XL Extension Cable and Proximitor Sensor. Together, these components create a calibrated system that converts the mechanical gap into a proportional voltage signal. Because the system follows a standard 7.87 V/mm (200 mV/mil) scale factor, it integrates seamlessly with Bently Nevada 3500 series monitoring racks and various Distributed Control Systems (DCS). Consequently, plant managers gain a reliable stream of data to support predictive maintenance strategies and optimize asset longevity.

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Technical Overview

The Bently Nevada 31000-16-10-15-030-03-02 is a specialized proximity probe housing designed to physically protect a proximity probe and its integral cable within harsh industrial environments. Its primary function is to provide a secure, environmentally sealed mounting point on rotating machinery for acquiring critical vibration and position data. The housing is constructed from 304 Stainless Steel, offering robust protection against physical impact and corrosion. This specific configuration, 31000-16-10-15-030-03-02, features a 3/4-14 NPT external mounting thread for direct installation into a machine case. Internally, it accommodates a Bently Nevada 3300 XL 8 mm or 3300 5 mm probe, which is positioned by a 1.0-inch stinger (probe sleeve). The housing facilitates the signal path from the probe tip to the Bently Nevada 3500 Monitoring System. The probe, connected via an extension cable to a Proximitor Sensor, generates a high-frequency RF signal. The resulting eddy current field is used to measure the distance to the observed conductive target. The Proximitor Sensor conditions this signal into a calibrated DC voltage proportional to the gap, which is then transmitted to a 3500/42M Proximitor/Seismic Monitor module for analysis, alarming, and machinery protection.

Detailed Specifications

ParameterSpecification
ManufacturerBently Nevada
Part Number31000-16-10-15-030-03-02
Product Type31000 Proximity Probe Housing
ConditionBrand New
Warranty12 Months
Housing Material304 Stainless Steel
Mounting Thread3/4-14 NPT
Stinger (Probe Sleeve) Length1.0 inch (25.4 mm)
Probe CompatibilityBently Nevada 3300 XL 8 mm and 3300 5 mm Proximity Probes
Environmental SealingViton O-ring cable seal included
Operating Temperature Range-34 °C to +177 °C (-30 °F to +350 °F)
Hazardous Area SuitabilitySuitable for Class I, Div 2 / Zone 2 locations when installed per Bently Nevada control drawings and with appropriately certified system components.

Operational Capabilities

In Oil & Gas applications, the 31000-16-10-15-030-03-02 housing provides essential protection for transducers monitoring centrifugal and reciprocating compressors, pumps, and gearboxes. Its 304 Stainless Steel construction and Viton seals ensure long-term integrity in environments containing corrosive elements such as H2S and hydrocarbons, a critical requirement for meeting API 670 standards for machinery protection systems. In Power Generation, this housing is extensively used on steam and gas turbines, exciters, and boiler feed pumps. It maintains measurement accuracy and reliability under conditions of high temperature and vibration, which is fundamental for monitoring shaft radial vibration, axial thrust position, and differential expansion. The passive mechanical design results in a high Mean Time Between Failures (MTBF), contributing to overall plant availability. When properly installed, the housing assembly provides an environmental rating equivalent to NEMA 4X and IP65, preventing ingress of dust, moisture, and process contaminants that could otherwise compromise signal integrity

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Technical Overview

The Bently Nevada 21504-00-32-10-02 is a 3300 NSv series proximity vibration probe, a fundamental component of an eddy current transducer system designed for non-contact displacement and vibration measurement on rotating machinery. Its primary function is to measure the distance (gap) between the probe tip and a conductive target material, typically a machine shaft. The probe operates by generating a high-frequency radio frequency (RF) field from its tip coil. When brought near the conductive target, this field induces eddy currents on the target's surface. These eddy currents alter the impedance of the probe's coil system. This change in impedance is detected by an associated Proximitor Sensor, which demodulates the signal into a voltage directly proportional to the probe-to-target gap. This analog voltage signal is then transmitted to a monitoring system, such as the Bently Nevada 3500 Machinery Protection System, for real-time analysis, trending, and alarming. The 21504-00-32-10-02 is constructed with a stainless steel case for durability in industrial environments and is specifically configured with a 320 mm case length and a 1.0-meter integral cable.

Detailed Specifications

ParameterSpecification
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Part Number21504-00-32-10-02
Product Type3300 NSv Proximity Vibration Probe
ConditionBrand New
Warranty12 Months
Unthreaded Length0 mm
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Operational Capabilities

In Oil & Gas and Power Generation applications, the 21504-00-32-10-02 probe demonstrates high reliability for continuous monitoring of critical assets such as gas and steam turbines, compressors, and large pump motors. Its non-contacting measurement principle eliminates mechanical wear, contributing to a high Mean Time Between Failures (MTBF) for the overall protection system. The probe is engineered to operate reliably in harsh industrial conditions. The probe tip is rated for continuous operation from -34 °C to +177 °C (-29 °F to +351 °F). The robust stainless steel case provides protection against physical impact and contaminants common in plant environments. When installed as part of a complete 3300 NSv transducer system, it provides a stable and repeatable measurement essential for machine protection and condition monitoring programs, enabling early detection of developing faults like imbalance, misalignment, and fluid-induced instabilities.

Applications

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  • Oil & gas compressors and pumps
  • Industrial rotating machinery monitoring
  • Predictive maintenance systems
  • Process automation

Technical FAQ

Q: What systems is the 21504-00-32-10-02 compatible with?
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Q: What are the installation requirements?
A: Proper installation is critical for measurement accuracy. The probe must be mounted perpendicular to the target surface using a rigid bracket. The physical gap should be set to place the DC output voltage in the middle of the system's linear range, typically -10 Vdc. The target area on the shaft must be at least 10.7 mm (0.42 in) in diameter, smooth (0.4 to 0.8 µm / 16 to 32 µin rms), and free of any electrical or magnetic irregularities (e.g., chrome plating, magnetised spots). Cable routing must avoid high-voltage power lines and other sources of electromagnetic interference. All ClickLoc connectors must be fully engaged to ensure a secure connection.

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