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- Bently Nevada 330105-02-12-10-02-CN 3300 XL 8mm Reverse Mount Proximity Probe
SKU: 330105-02-12-10-02-CN
Bently Nevada 330105-02-12-10-02-CN 3300 XL 8mm Reverse Mount Proximity Probe
The Bently Nevada 330105-02-12-10-02-CN is a 3300 XL 8mm reverse mount proximity probe with a 1.0-meter cable. It provides high-accuracy vibration monitoring with CN-specific regional certification.
Technical Specification Overview
The Bently Nevada 330105-02-12-10-02-CN operates as a high-precision, non-contacting displacement sensor within the 3300 XL 8mm Transducer System. This specific model utilizes a reverse mount design, which allows technicians to install the probe from the outside of the machine housing via a probe housing assembly. By generating an eddy current field to measure the microscopic distance to a rotating shaft, the probe provides the essential raw data required for monitoring vibration, thrust position, and rotational speed.
Design and Functional Capabilities
Engineers designed this probe to solve installation challenges in confined spaces where internal mounting is impossible. This model features a 3/8-24 UNF thread and a 1.2-inch overall case length, specifically configured for reverse-mount applications. Furthermore, the “CN” suffix confirms that the hardware complies with Chinese regional standards, ensuring it meets all necessary regulatory and safety requirements for industrial deployment in that market. The unit maintains a consistent Scale Factor across a wide thermal range, which prevents temperature shifts from distorting the vibration data.
- Manufacturer:Â Bently Nevada
- Model Number:Â 330105-02-12-10-02-CN
- System Series:Â 3300 XL 8mm
- Total Case Length:Â 1.2 inches
- Total Cable Length:Â 1.0 Meter
- Connector Option:Â Miniature coaxial ClickLoc connector
- Certification:Â CN
- Mounting Thread:Â 3/8-24 UNF
- Linear Range:Â 2.0 mm
- Operating Temperature: -51°C to +177°C
Operational Impact and Industrial Applications
This proximity probe actively facilitates predictive maintenance strategies by delivering a continuous stream of machinery health information to the 3500 Monitoring System. Consequently, operators can detect early indicators of mechanical failure, such as shaft misalignment or rotor imbalance, without stopping the machine for physical inspections. Because the reverse mount design allows for probe replacement without removing the machine’s bearing covers, it significantly reduces maintenance downtime and labor costs.
Primary industrial applications include:
- Radial Vibration Monitoring:Â Tracking the dynamic movement of shafts in centrifugal pumps and compressors.
- Axial Thrust Position:Â Measuring the longitudinal movement of rotors in steam and gas turbines.
- Keyphasor Phase Reference:Â Providing timing signals for complex diagnostic and balancing procedures.
Mechanical Integrity and Resilience
To ensure reliable performance in aggressive atmospheres, Bently Nevada utilizes a 304 stainless steel body and a PPS (polyphenylene sulfide) resin tip. This robust construction creates a hermetic seal that protects the internal sensing coil from oil, water, and steam ingress. Additionally, the patented ClickLoc connector technology provides a secure, vibration-resistant electrical path. This locking mechanism ensures the signal remains stable despite the high-frequency oscillations typical of large-scale industrial rotating equipment.
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89477-30 | Bently Nevada | Interconnect Cable
Technical Overview
The Bently Nevada 89477-30 is a specialized interconnect cable engineered for the 3500 Machinery Protection System. Its primary function is to establish a high-integrity communication link between a 3500/42M Proximitor/Seismic Monitor and its corresponding rear-mounted I/O module. The cable transmits raw, unamplified dynamic vibration and axial position signals from the I/O module's input terminals to the monitor's processing circuitry. It concurrently carries the -24 Vdc power from the monitor to the I/O module, which in turn powers the connected Proximitor probes. The 89477-30 is constructed as a multi-conductor, shielded assembly to ensure high signal-to-noise ratio (SNR) and protect the low-amplitude transducer signals from electromagnetic interference (EMI) and radio-frequency interference (RFI) prevalent in industrial environments. This robust shielding is critical for the accuracy of sub-mil (micrometer) level measurements required for effective machinery diagnostics and protection. The cable's specific length and keyed connectors ensure proper installation and signal path integrity within the 3500 rack architecture.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 89477-30 |
| Product Type | Interconnect Cable |
| Condition | Brand New |
| Warranty | 12 Months |
| Cable Length | 3.0 meters (9.8 feet) |
| Connector Type | Multi-pin, keyed D-subminiature with jackscrew locking mechanisms |
| System Compatibility | Bently Nevada 3500/42M Proximitor/Seismic Monitor and associated I/O modules |
| Cable Construction | Multi-conductor, 22 AWG, with overall foil and/or braid shielding |
| Operating Temperature | -30°C to +65°C (-22°F to +149°F) |
| Signal Type | Transmits dynamic transducer signals (vibration, position) and DC power |
| Application Environment | For internal use within 3500 system racks; not rated for field installation |
Operational Capabilities
In Oil & Gas and Power Generation applications, the 89477-30 interconnect cable demonstrates high reliability essential for continuous machinery protection. Its performance is defined by its ability to maintain signal integrity in environments with significant electrical noise and mechanical vibration. The cable's robust construction, featuring secure locking connectors and comprehensive shielding, prevents signal degradation and intermittent connections, which are potential sources of false trips or missed alarms in a protection system. The specified operating temperature range of -30°C to +65°C ensures stable performance within control cabinets and rack rooms that experience thermal cycling. The reliability of the 89477-30 is a critical factor in the overall safety integrity level (SIL) rating of the 3500 system, as it provides the foundational data link for detecting incipient faults such as bearing wear, imbalance, and shaft cracks in critical rotating assets.
Applications
- Power generation turbines and generators
- Oil & gas compressors and pumps
- Industrial rotating machinery monitoring
- Predictive maintenance systems
- Process automation
Technical FAQ
Q: What systems is the 89477-30 compatible with?
A: The 89477-30 interconnect cable is designed exclusively for the Bently Nevada 3500 Machinery Protection System. It specifically facilitates the connection between a 3500/42M Proximitor/Seismic Monitor and its corresponding I/O module (e.g., 3500/42M I/O with Internal Terminations). It is not designed or validated for use with other Bently Nevada system series (such as 3300) or any third-party monitoring equipment.
Q: What are the installation requirements?
A: Installation must be performed by a qualified instrumentation technician familiar with the 3500 system. The cable is to be routed within the 3500 rack, ensuring it is not pinched, kinked, or subjected to tension. Adhere to a minimum bend radius of 10 times the cable's outer diameter. The keyed connectors prevent incorrect mating; do not apply force if resistance is met. After seating the connectors, fully tighten the jackscrews to prevent disconnection from cabinet vibration. Route the 89477-30 cable away from high-voltage AC power wiring to further mitigate any risk of noise induction.
21000-27-05-40-026-03-02 | Bently Nevada | Proximity ProbeHousing Assemblies
Technical Overview
The Bently Nevada 21000-27-05-40-026-03-02 is a proximity probe housing assembly designed to provide a secure, environmentally sealed, and adjustable mounting for proximity probes on industrial machinery. Its primary function is to protect the sensitive probe element from the harsh process environment (e.g., high pressure, corrosive gases, liquids) while allowing precise positioning relative to the observed machine shaft. This specific assembly is constructed from 316 Stainless Steel for superior corrosion resistance. It features a 3/4-14 NPT mounting thread for direct installation into the machine casing. The assembly houses a 3300 XL 8 mm probe, which operates on the eddy current principle. The probe, connected via an extension cable to a Proximitor Sensor, transmits a high-frequency RF signal. The proximity of the conductive shaft surface modulates this signal, which the Proximitor Sensor demodulates into a DC voltage proportional to the probe-to-shaft gap. This conditioned signal is then supplied to a Bently Nevada 3500 Machinery Protection System for continuous monitoring of radial vibration, axial position, and rotational speed.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 21000-27-05-40-026-03-02 |
| Product Type | Proximity Probe Housing Assembly |
| Condition | Brand New |
| Warranty | 12 Months |
| Housing Material | 316 Stainless Steel |
| Mounting Thread | 3/4-14 NPT |
| Probe Penetration Length | 400 mm (15.7 in) |
| Standoff Length | 50 mm (2.0 in) |
| Included Probe Option | 3300 XL 8 mm probe, 1.0 metre cable, miniature coaxial connector |
| Fittings Option | One 3/4-14 NPT plug provided |
| Housing Operating Temperature | -34 °C to +177 °C (-29 °F to +350 °F) |
Operational Capabilities
In Oil & Gas and Power Generation applications, the 21000-27-05-40-026-03-02 assembly provides a robust and reliable platform for critical machinery monitoring. Its 316 Stainless Steel construction ensures long-term integrity in environments containing hydrogen sulfide (H2S), chlorides, and other corrosive agents common in refineries and offshore platforms. The NPT thread mounting, when installed with appropriate sealant, creates a high-pressure seal, preventing the escape of process gases or liquids. This is critical for safety and environmental compliance on equipment such as centrifugal compressors and high-pressure pumps. The assembly's design facilitates stable probe gapping, which is essential for the accuracy and repeatability of vibration and position measurements required for API 670 compliant protection systems. The housing is engineered for continuous, long-term service with minimal maintenance, contributing to high machine availability and reduced lifecycle costs for critical assets like gas turbines, steam turbines, and generators.
Applications
- Power generation turbines and generators
- Oil & gas compressors and pumps
- Industrial rotating machinery monitoring
- Predictive maintenance systems
- Process automation
Technical FAQ
Q: What systems is the 21000-27-05-40-026-03-02 compatible with?
A: The 3300 XL 8 mm probe included with the 21000-27-05-40-026-03-02 assembly is part of a transducer system that requires a matching 3300 XL extension cable and a 3300 XL Proximitor Sensor. The complete transducer system output is fully compatible with Bently Nevada machinery protection and condition monitoring systems, including the 3500 Series (e.g., 3500/42M Proximitor/Seismic Monitor), 3300 Series Monitors, and ADRE data acquisition systems. The housing's 3/4-14 NPT mechanical interface is compatible with any machine case drilled and tapped to this standard thread size.
Q: What are the installation requirements?
A: Installation requires a 3/4-14 NPT tapped hole at the measurement location on the machine casing. An appropriate thread sealant (e.g., PTFE tape or pipe dope compatible with the process fluid and temperature) must be applied to the mounting threads to ensure a pressure-tight seal. The probe must be gapped by adjusting its position within the housing to achieve the correct DC voltage output (typically -10.0 Vdc for a 3300 XL 8 mm system) when measured at the Proximitor Sensor's output terminals. After gapping, the probe is secured in place using the housing's set screws. Adherence to Bently Nevada's specified torque values for the housing and any fittings is mandatory to prevent damage and ensure seal integrity.
330102-00-12-05-02-05 | Bently Nevada | 3300 XL 8 mm Proximity Probes
Technical Overview
The Bently Nevada 330102-00-12-05-02-05 is a 3300 XL 8 mm reverse mount proximity probe, a component of an eddy current transducer system designed for non-contact displacement and vibration measurement on rotating machinery. The probe functions by emitting a high-frequency radio frequency (RF) signal from its encapsulated tip. When positioned near a conductive target material, such as a machine shaft, this RF field induces eddy currents on the surface of the target. The interaction between the probe's field and the eddy currents creates an impedance change in the probe's coil, which is directly proportional to the gap between the probe tip and the target surface. This raw signal is transmitted through its integral 0.5-meter cable to a 3300 XL extension cable and subsequently to a 3300 XL Proximitor Sensor. The Proximitor Sensor demodulates and linearizes the signal, producing a precise DC voltage output that corresponds to the physical gap. This conditioned signal is then supplied to a Bently Nevada 3500 Series monitoring system for continuous machine protection, diagnostics, and data logging.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 330102-00-12-05-02-05 |
| Product Type | 3300 XL 8 mm Reverse Mount Proximity Probe |
| Condition | Brand New |
| Warranty | 12 Months |
| Total Length | 0.5 meter (1.6 feet) |
| Mounting Option | 3/8-24 UNF threads, Reverse Mount |
| Case Length | 1.2 inches (30.5 mm) |
| Connector Type | Miniature coaxial ClickLoc connector, gold-plated |
| Linear Range | 2.0 mm (80 mils) |
| Scale Factor | 7.87 V/mm (200 mV/mil) ±5%, when used with 3300 XL Proximitor and AISI 4140 steel target |
| Frequency Response | 0 Hz (DC) to 10 kHz (-3 dB) |
| Agency Approvals | CSA/NRTL/C, ATEX/IECEx (Ex ia IIC T4 Ga, Ex ia IIIC T135°C Da) |
Operational Capabilities
In Oil & Gas and Power Generation applications, the 330102-00-12-05-02-05 probe is integral to Machinery Protection Systems (MPS) on critical assets like gas and steam turbines, compressors, and large motor-pump sets. It provides the primary measurement for radial vibration, axial thrust position, and shaft eccentricity. The probe's construction from AISI 304 stainless steel ensures high reliability in corrosive and high-temperature environments. Its tip is hermetically sealed with a high-pressure, injection-molded Ryton® PPS material, preventing ingress of oil and process fluids. The specified operating temperature range for the probe tip is -34 °C to +177 °C (-29 °F to +350 °F). The included agency approvals (CSA, ATEX, IECEx) certify the 330102-00-12-05-02-05 for safe operation as an intrinsically safe apparatus in specified hazardous areas, a mandatory requirement for many hydrocarbon processing and power plant environments. The system demonstrates high long-term stability, minimizing calibration drift and ensuring consistent machine protection over extended operational periods.
Applications
- Power generation turbines and generators
- Oil & gas compressors and pumps
- Industrial rotating machinery monitoring
- Predictive maintenance systems
- Process automation
Technical FAQ
Q: What systems is the 330102-00-12-05-02-05 compatible with?
A: The 330102-00
21000-16-05-00-115-03-02 | Bently Nevada | Proximity ProbeHousing Assemblies
Technical Overview
The Bently Nevada 21000-16-05-00-115-03-02 is a rigid proximity probe housing assembly engineered to provide a secure and stable mounting for eddy current proximity probes used in machinery protection systems. Its primary function is to physically protect the probe while positioning it at a precise, fixed distance from the observed machine shaft or target surface. This specific assembly, constructed from 303 stainless steel, ensures mechanical integrity and corrosion resistance in harsh industrial environments. It integrates as a critical front-end mechanical component for systems like the Bently Nevada 3500. While the housing itself is a passive component and does not transmit an electrical signal, its dimensional accuracy is fundamental for the integrity of the measurement chain. By holding the probe stationary relative to the machine casing, it enables the connected Proximitor Sensor and monitor to accurately measure radial vibration, axial thrust position, and phase reference (Keyphasor) data. The 1.6-inch penetration length and 1-1/4 - 12 UNF mounting thread are specified for direct installation into pre-drilled and tapped holes on machine casings.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 21000-16-05-00-115-03-02 |
| Product Type | Proximity Probe Housing Assembly |
| Condition | Brand New |
| Warranty | 12 Months |
| Housing Material | 303 Stainless Steel |
| Mounting Thread | 1-1/4 - 12 UNF |
| Penetration Length (A) | 1.6 in (40.6 mm) |
| Standoff Length (B) | 0.5 in (12.7 mm) |
| Compatible Probe Series | Bently Nevada 3300 XL 8mm, 3300 8mm, 7200 5mm & 8mm |
| Mounting Option | Supplied with two 1-1/4 - 12 UNF mounting nuts |
| Operating Temperature Range | -51°C to +177°C (-60°F to +350°F) |
Operational Capabilities
In Oil & Gas and Power Generation applications, the 21000-16-05-00-115-03-02 housing assembly demonstrates high reliability on critical rotating machinery such as gas and steam turbines, centrifugal compressors, and boiler feed pumps. Its rigid, single-piece 303 stainless steel construction provides excellent resistance to mechanical vibration and thermal expansion, ensuring measurement stability and data integrity for the connected condition monitoring system. The material specification offers robust protection against corrosion from hydrocarbons, process chemicals, and atmospheric moisture. As a passive mechanical component, its Mean Time Between Failures (MTBF) is exceptionally high, with reliability being primarily dependent on correct installation and torque procedures. The specified operating temperature range of -51°C to +177°C allows for direct mounting on hot machine casings without degradation of its mechanical properties, making it suitable for a wide spectrum of industrial operating conditions.
Applications
- Power generation turbines and generators
- Oil & gas compressors and pumps
- Industrial rotating machinery monitoring
- Predictive maintenance systems
- Process automation
Technical FAQ
Q: What systems is the 21000-16-05-00-115-03-02 compatible with?
A: The 21000-16-05-00-115-03-02 is designed as a front-end component for Bently Nevada's 3500 and 3300 Machinery Protection and Condition Monitoring Systems. It is mechanically compatible with any system utilizing Bently Nevada 3300 XL 8mm, 3300 8mm, or 7200 series (5mm and 8mm) proximity probes. Its function is purely mechanical, so electrical compatibility is determined by the probe, extension cable, and Proximitor sensor it is used with.
Q: What are the installation requirements?
A: Installation requires a pre-drilled and tapped hole in the machine casing with a 1-1/4 - 12 UNF thread. The housing is threaded into this mount point. The proximity probe is then inserted into the housing and its axial position is adjusted to set the correct DC gap voltage relative to the shaft
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Bently Nevada 330103-00-11-50-02-05 3300 XL 8 mm Probe
Technical Overview
The Bently Nevada 330103-00-11-50-02-05 is a genuine industrial automation component designed for reliable operation in demanding environments. This high-quality product ensures optimal performance and long-term durability for critical machinery protection systems.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 330103-00-11-50-02-05 |
| Condition | Brand New |
| Warranty | 12 Months |
Applications
- Power generation turbines and generators
- Oil & gas compressors and pumps
- Industrial rotating machinery monitoring
- Predictive maintenance systems
- Process automation in manufacturing plants
Operational Capabilities
This Bently Nevada 330103-00-11-50-02-05 component delivers consistent performance in harsh industrial environments. It is engineered for seamless integration with Bently Nevada monitoring systems, ensuring accurate data collection for predictive maintenance and operational efficiency.
Technical FAQ
Q: Is this an authentic Bently Nevada product?
A: Yes, this is a 100% genuine Bently Nevada product with full manufacturer warranty.
Q: What warranty is included?
A: All products include a standard 12-month warranty with comprehensive technical support.
Bently Nevada 330101-00-20-90-02-00 3300 XL 8 mm Probe
Technical Overview
The Bently Nevada 330101-00-20-90-02-00 is a genuine industrial automation component designed for reliable operation in demanding environments. This high-quality product ensures optimal performance and long-term durability for critical machinery protection systems.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 330101-00-20-90-02-00 |
| Condition | Brand New |
| Warranty | 12 Months |
Applications
- Power generation turbines and generators
- Oil & gas compressors and pumps
- Industrial rotating machinery monitoring
- Predictive maintenance systems
- Process automation in manufacturing plants
Operational Capabilities
This Bently Nevada 330101-00-20-90-02-00 component delivers consistent performance in harsh industrial environments. It is engineered for seamless integration with Bently Nevada monitoring systems, ensuring accurate data collection for predictive maintenance and operational efficiency.
Technical FAQ
Q: Is this an authentic Bently Nevada product?
A: Yes, this is a 100% genuine Bently Nevada product with full manufacturer warranty.
Q: What warranty is included?
A: All products include a standard 12-month warranty with comprehensive technical support.


























