## Technical Overview
The Bently Nevada 330101-30-60-05-01-05 is a 3300 XL 8 mm proximity probe, a non-contacting eddy current transducer designed for high-precision displacement and vibration measurements on rotating machinery. The probe operates by generating a high-frequency radio frequency (RF) field from its tip. When brought near a conductive target material, such as a machine shaft, eddy currents are induced in the material’s surface. These currents create an opposing magnetic field, altering the impedance of the probe system. The associated Proximitor® Sensor processes this impedance change, producing a DC voltage output directly proportional to the physical gap between the probe tip and the target surface. This system provides critical, real-time data for radial vibration, axial position, and shaft speed measurements. It integrates directly with the Bently Nevada 3500 Machinery Protection System to supply the primary inputs for comprehensive condition monitoring and automatic machine shutdown logic.
## Detailed Specifications
| Parameter | Specification |
| Manufacturer | Bently Nevada |
| Part Number | 330101-30-60-05-01-05 |
| Product Type | 3300 XL 8 mm Proximity Probe |
| Total Length | 0.5 metre |
| Unthreaded Length | 30 mm |
| Case Length | 60 mm |
| Connector Type | Miniature coaxial ClickLoc™ connector |
| Linear Range | 2 mm (80 mils) |
| Sensitivity | 7.87 V/mm (200 mV/mil) ±5% |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Operating Temperature | -34 °C to +177 °C (-29 °F to +351 °F) |
| Agency Approvals | Multiple Approvals (CSA, ATEX, IECEx) |
## Operational Capabilities
The 3300 XL 8 mm probe system is specified for monitoring critical rotating assets across demanding industrial environments, including Oil & Gas and Power Generation. It is deployed on machinery such as steam and gas turbines, centrifugal and reciprocating compressors, pumps, generators, and large fan motors. The system’s function is fundamental to machinery protection and predictive maintenance programs. By accurately measuring shaft vibration and position, it provides early detection of developing faults like rotor imbalance, shaft misalignment, bearing degradation, and fluid-induced instabilities. This data enables operators to diagnose machinery health issues before they escalate to catastrophic failure, thereby increasing asset reliability, minimizing unplanned downtime, and facilitating scheduled, condition-based maintenance interventions.
## Technical FAQ
Is the 330101-30-60-05-01-05 probe interchangeable with older Bently Nevada 3300 5 mm or 7200 series probe systems?
No. The 3300 XL 8 mm system components (probe, extension cable, and Proximitor Sensor) are tuned and compensated as a complete system to meet specified performance. Interchanging components with other systems, including legacy 3300 or 7200 series hardware, will result in significant measurement errors and is not supported. Use only 3300 XL 8 mm components together to ensure measurement accuracy and system integrity.
What are the installation clearance requirements to prevent signal interference?
To ensure accurate readings, the probe tip requires specific clearances from adjacent conductive materials. Maintain a minimum side-view clearance of 25.4 mm (1.0 in) from the probe tip’s center to any surrounding metallic surfaces not intended as the measurement target. When installing multiple probes side-by-side, the minimum center-to-center spacing between probe tips must be 38 mm (1.5 in) to prevent signal crosstalk. Failure to adhere to these installation specifications can compromise signal quality and measurement validity.
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.
| 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 |
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.
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.
The Bently Nevada 330703-00-100-10-11-CN is an 11 mm eddy current proximity probe designed for non-contact displacement and vibration measurement on rotating machinery. It functions as a core component of the 3300 XL 11 mm Transducer System, which also includes a matched extension cable and a 3300 XL 11 mm Proximitor Sensor. The system operates on the eddy current principle, where the Proximitor Sensor emits a high-frequency radio frequency (RF) signal through the probe and extension cable. This signal radiates from the probe tip, creating an electromagnetic field. When a conductive target, such as a machine shaft, enters this field, eddy currents are induced on its surface. These currents create a secondary magnetic field that opposes the primary field, causing a measurable change in the RF signal's impedance. The Proximitor Sensor demodulates this signal to produce a DC voltage directly proportional to the gap between the probe tip and the target surface. This analog voltage signal is then transmitted to a monitoring system, such as the Bently Nevada 3500 series, for real-time analysis of radial vibration, axial position, and shaft speed. The 330703-00-100-10-11-CN features a robust stainless steel case and a chemically resistant Polyphenylene Sulfide (PPS) tip, ensuring reliability in harsh industrial environments.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 330703-00-100-10-11-CN |
| Product Type | 3300 XL 11 mm Proximity Probe |
| Condition | Brand New |
| Warranty | 12 Months |
| Linear Range | 4.0 mm (160 mils) |
| Scale Factor | 2.00 mV/µm (50 mV/mil) ± 6.5% |
| Total Length | 1.0 metre |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Probe Case Material | AISI 304 Stainless Steel |
| Connector Type | Miniature coaxial ClickLoc™ connector, gold-plated |
| Agency Approval | CN Ex (China Ex) for hazardous area installations |
The 330703-00-100-10-11-CN proximity probe is engineered for high reliability in demanding industrial applications, particularly within Oil & Gas and Power Generation sectors. Its 11 mm tip provides a larger linear measurement range and is well-suited for monitoring large shaft diameters or applications requiring a greater standoff distance. The probe's construction ensures operational integrity across a wide temperature range, with the probe tip rated for -51 °C to +177 °C (-60 °F to +351 °F). The 3300 XL system design provides enhanced immunity to radio frequency interference (RFI/EMI), minimizing the risk of signal corruption from nearby motors, generators, or radio sources. The gold-plated ClickLoc™ connector ensures a secure, corrosion-resistant connection that prevents intermittent signals caused by vibration. When installed and maintained according to manufacturer specifications, the system demonstrates high Mean Time Between Failures (MTBF) and is a critical component for machinery protection systems (MPS) and condition monitoring programs, compliant with standards such as API 670.
Q: What systems is the 330703-00-100-10-11-CN compatible with?
A: The 330703-00-100-10-11-CN probe must be used as part of a complete Bently Nevada 3300 XL 11 mm Transducer System. This requires a matching 3300 XL 11 mm Proximitor Sensor (e.g., part number 330780) and a 3300 XL 11 mm extension cable. It is not interchangeable with components from 5 mm or 8 mm transducer systems, as the scale factor and linear range are different. The complete transducer system provides a voltage output compatible with Bently Nevada monitoring systems, including the 3500 and 3300 series, as well as third-party PLCs, DCS, and data acquisition systems designed to accept a 3-wire, -24 Vdc powered eddy current probe input.
Q: What are the installation requirements?
A: Proper installation is critical for accurate measurements. The probe must be mounted perpendicular to the observed shaft surface using a rigid bracket. The target area on the shaft must be smooth (typically 0.4 to 0.8 µm / 16 to 32 µin Ra), free of chrome or other non-conductive plating, and clear of any residual magnetism or electrical runout. The probe must be gapped correctly by adjusting its distance to the shaft until the Proximitor Sensor output voltage is at the center of the linear range, typically -10.0 Vdc. The probe case locknut should be torqued to the specified value to prevent loosening. The integral cable and any extension cable should be secured to avoid strain on the connectors and routed away from high-voltage power cables to minimize interference.
The Bently Nevada 330102-00-60-10-01-05 is an 8 mm reverse-mount eddy current proximity probe designed for non-contact measurement of vibration and displacement. It functions as a core component of the 3300 XL 8 mm Proximity Transducer System, which also includes an extension cable and a Proximitor Sensor. The probe operates by having the Proximitor Sensor generate a high-frequency radio frequency (RF) signal, which is transmitted through the extension cable and radiated from the probe's tip into a small electromagnetic field. When a conductive target, such as a machine shaft, enters this field, eddy currents are induced on its surface. These currents create a secondary magnetic field that opposes the primary field, causing a measurable change in the RF signal's amplitude. This change is directly proportional to the gap between the probe tip and the target surface. The Proximitor Sensor demodulates this signal, converting it into a DC voltage that accurately represents the physical distance. This conditioned voltage signal is then transmitted to a monitoring system, such as the Bently Nevada 3500, for real-time analysis of radial vibration, axial position, and shaft speed.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 330102-00-60-10-01-05 |
| Product Type | 3300 XL 8 mm Reverse Mount Proximity Probe |
| Condition | Brand New |
| Warranty | 12 Months |
| Total Length | 1.0 meter (3.3 feet) |
| Case Length | 6.0 inches (152 mm) |
| Mounting Option | Reverse Mount |
| Connector Type | Miniature coaxial ClickLoc™ connector, gold-plated |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Probe Case Material | AISI 304 Stainless Steel |
| Agency Approvals | Multiple Approvals: CSA (Class I, Div 1/2), ATEX/IECEx (Zone 0/1) |
In Oil & Gas and Power Generation applications, the 330102-00-60-10-01-05 probe demonstrates high reliability in demanding operational environments. Its construction with a PPS tip and stainless steel case allows for continuous operation in temperatures ranging from -34 °C to +177 °C (-29 °F to +350 °F). The gold-plated ClickLoc connector provides a secure, corrosion-resistant connection that prevents signal degradation from fluid ingress or vibration-induced intermittence. When paired with a 3300 XL Proximitor Sensor, the system provides a linear measurement range of 2.0 mm (80 mils) with a scale factor of 7.87 V/mm (200 mV/mil), ensuring precise data for machine diagnostics. The system is designed for high immunity to radio frequency interference (RFI), minimizing signal corruption in electrically noisy industrial environments. The probe's physical durability and signal integrity are critical for monitoring high-speed turbomachinery, where accurate measurement of shaft dynamics is essential for preventing catastrophic failure.
Q: What systems is the 330102-00-60-10-01-05 compatible with?
A: The 330102-00-60-10-01-05 probe is a component of the 3300 XL 8 mm Transducer System. For proper operation, it must be used with a 3300 XL extension cable and a 3300 XL Proximitor Sensor (e.g., part number 330180). This complete transducer system is fully compatible with Bently Nevada monitoring systems, including the 3500 Series Machinery Protection System and ADRE Sxp/408 DSPi data acquisition systems. It is not electrically or mechanically compatible with components from other transducer series, such as the 7200 or 3000 series.
Q: What are the installation requirements?
A: As a reverse-mount probe, the 330102-00-60-10-01-05 is installed from inside the machine housing, with the probe body extending outward. A clearance hole must be drilled through the machine case to accommodate the 8 mm probe tip. The target area on the observed shaft must be smooth, free of surface defects, and have a minimum diameter of 10.7 mm (0.42 in) to ensure measurement accuracy. The probe's gap should be set to the center of its linear range, typically corresponding to -10.0 Vdc. The ClickLoc connector must be tightened to the specified torque to ensure a secure, environmentally sealed connection. Cable routing must avoid areas of extreme heat, physical abrasion, and proximity to high-voltage power lines to maintain signal integrity.
The Bently Nevada 330881-28-04-034-06-02 is an integrated PROXPAC XL Proximity Transducer system. This component combines an 8 mm proximity probe, an extension cable, and a signal conditioner into a single, factory-calibrated assembly, which eliminates the need for individual component calibration in the field. The transducer operates on the eddy current principle. The probe tip emits a high-frequency radio frequency (RF) signal, which induces eddy currents on the surface of a conductive machine element, such as a rotating shaft. The transducer's internal circuitry measures the impedance changes resulting from the interaction between the RF field and the eddy currents. This impedance is directly proportional to the physical gap between the probe tip and the target surface. The integrated signal conditioner demodulates this signal and provides a continuous DC voltage output that is precisely proportional to the measured gap. This output voltage is then transmitted to a monitoring system, such as the Bently Nevada 3500 series, for analysis of vibration, axial position, or rotational speed. The construction of the 330881-28-04-034-06-02 ensures high signal integrity by minimizing interconnections, making it suitable for critical machinery monitoring applications.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 330881-28-04-034-06-02 |
| Product Type | PROXPAC XL Proximity Transducer |
| Condition | Brand New |
| Warranty | 12 Months |
| Total System Length | 2.8 metres (9.2 feet) |
| Probe Configuration | 3300 XL 8 mm probe, 1/4-28 UNF thread, 0.5 m cable |
| Agency Approvals | Multiple Approvals: CSA (Class I, Div 1/2); ATEX/IECEx (Zone 0/1) |
| Scale Factor | 8.0 V/mm (200 mV/mil), ±5% for AISI 4140 Steel |
| Linear Range | 2.0 mm (80 mils), beginning at 0.25 mm (10 mils) from the probe face |
| Frequency Response | 0 Hz (DC) to 10 kHz (-3 dB) |
| Power Supply Requirement | -17.5 Vdc to -26 Vdc at 12 mA maximum consumption |
| Mounting Option | Panel Mount, 4-Hole Square Flange |
In Oil & Gas and Power Generation applications, the 330881-28-04-034-06-02 provides continuous, online data for machinery protection and condition monitoring. It is engineered for measuring radial vibration, axial thrust position, and differential expansion on large rotating equipment such as gas and steam turbines, centrifugal and reciprocating compressors, and large pump motors. The integrated design enhances reliability by eliminating the connectors between the probe, extension cable, and Proximitor sensor, which are common points of failure and signal degradation due to moisture ingress or vibration. The factory-calibrated system ensures measurement consistency and accuracy without field adjustments. Environmentally, the 330881-28-04-034-06-02 is specified with multiple agency approvals (CSA, ATEX, IECEx), certifying it for safe operation in hazardous areas with explosive gas atmospheres (e.g., Class I, Division 1; Zone 0). The electronics housing is rated for an operating temperature of -34 °C to +85 °C (-30 °F to +185 °F), ensuring performance in demanding industrial environments.
Q: What systems is the 330881-28-04-034-06-02 compatible with?
A: The 330881-28-04-034-06-02 is fully compatible with the Bently Nevada 3500 Machinery Protection System, specifically interfacing with modules such as the 3500/42M Proximitor/Seismic Monitor. It is also compatible with any PLC, DCS, or data acquisition system that can provide a -17.5 Vdc to -26 Vdc power supply and accept a proportional analog voltage input (typically configured for a range like -2 to -18 Vdc). The transducer is factory-calibrated for AISI 4140 steel; use with other target materials will require a different calibration or result in measurement inaccuracies.
Q: What are the installation requirements?
A: Installation requires both mechanical mounting and electrical wiring. The probe portion, with its 1/4-28 UNF thread, must be installed in a rigid bracket and its gap set relative to the machine shaft. The standard practice is to set the DC gap voltage to the center of the linear range (e.g., -10.0 V
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.
| 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) |
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.
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.
The Bently Nevada 21000-16-10-15-075-03-02 is a genuine industrial component designed for critical automation systems. This high-quality product delivers reliable performance in demanding industrial environments.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 21000-16-10-15-075-03-02 |
| Condition | Brand New |
| Warranty | 12 Months |
Q: Is this a genuine Bently Nevada product?
A: Yes, this is a 100% genuine product with full manufacturer warranty.
Q: What is the warranty period?
A: All products come with a standard 12-month warranty.
The Bently Nevada 330104-00-14-10-11-00 Proximity Probes is a genuine industrial component.
| Condition | New |
We are committed to protecting your privacy. The information collected here is strictly used to provide the requested quotes, technical support, and relevant industrial automation solutions.