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SKU: 330708-00-20-50-02-05
330708-00-20-50-02-05 | Bently Nevada | Monitor Module
330708-00-20-50-02-05 Product datasheet
Model number: | 330708-00-20-50-02-05 | Module Type: | 3300 XL 11 mm Probe | |
Manufacture: | Bently Nevada | Condition: | Brand New | |
Range of Product: | 3300 Series | Lead time: | In Stock | |
Weight: | 1.04 kg | HS CODE: | 8537101190 | |
Dimension: | 28×26×4cm | MOQ: | 1 | |
Product Origin: | USA | System: | TSI | |
Discontinued on: | active | Communication Service: | Ethernet router |
330708-00-20-50-02-05 Functional Description
The Bently Nevada 330708-00-20-50-02-05 3300 XL 11 mm Probeis a key component of the 3300 XL 11 mm Proximity Transducer System, which includes a probe, extension cable, and Proximitor Sensor. This system is designed for high-precision, non-contact vibration and displacement measurements on fluid film bearing machinery. With its 3.94 V/mm (100 mV/mil) output, the330708-00-20-50-02-05 Proximity Probe and Extension Cable ensures accurate and reliable data collection for critical industrial applications.
The 3300 XL 11 mm system’s larger tip diameter provides a significantly longer linear range compared to standard 8 mm systems. This makes the Proximity Probe Bently Nevada 330708-00-20-50-02-05particularly suitable for applications requiring extended measurement capabilities, such as axial (thrust) position monitoring and ramp differential expansion measurements on steam turbines. Its robust design ensures consistent performance even in demanding environments.
The 3300 Series 330708-00-20-50-02-05excels in specialized applications, including rod position or rod drop measurements on reciprocating compressors, as well as tachometer and zero-speed detection. Additionally, it is ideal for generating phase reference (Keyphasor) signals, making it indispensable for machinery protection and condition monitoring.
The Bently Nevada 330708-00-20-50-02-05 integrates seamlessly with the 3300 XL 11 mm system, offering plug-and-play compatibility with probes and sensors. Its rugged construction and precision engineering ensure long-term reliability, reducing maintenance costs and downtime. Whether for power generation, oil and gas, or manufacturing, the Bently Nevada 330708-00-20-50-02-05 PDFdelivers unmatched performance in critical monitoring applications.
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21000-34-10-20-058-04-02 | Bently Nevada | Proximity Probe HousingAssemblies
Technical Overview
The Bently Nevada 21000-34-10-20-058-04-02 is a rigid proximity probe housing assembly designed for the external mounting of proximity probes on machinery casings. Its primary function is to provide a secure, environmentally sealed, and mechanically protected housing for a non-contacting eddy current proximity probe. This specific assembly, constructed from 304 Stainless Steel, ensures robust performance in corrosive industrial environments. It positions a 3300 XL 8 mm probe at a fixed distance from the mounting surface, defined by its 3.4-inch standoff dimension. When integrated into a Bently Nevada 3500 Machinery Protection System, the probe within the 21000-34-10-20-058-04-02 housing measures shaft vibration and position. The probe transmits a high-frequency RF signal, which is modulated by the gap to the conductive target. This signal is then demodulated by a Proximitor sensor, producing a DC voltage proportional to the gap. This voltage is processed by a 3500 monitor module (e.g., 3500/42M) to provide critical data for machinery diagnostics and protection, such as radial vibration, axial thrust position, and speed.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 21000-34-10-20-058-04-02 |
| Product Type | Proximity Probe Housing Assembly |
| Condition | Brand New |
| Warranty | 12 Months |
| Material of Construction | 304 Stainless Steel |
| Mounting Thread Option | 3/4 - 14 NPT |
| Standoff Adapter Dimension (A) | 3.4 in (86 mm) |
| Housing Length (C) | 5.8 in (147 mm) |
| Included Probe | 3300 XL 8 mm Proximity Probe |
| Probe Cable Length (B) | 2.0 m (6.6 ft) |
| Operating Temperature Range | -34 °C to +177 °C (-29 °F to +350 °F), limited by probe/cable specifications |
Operational Capabilities
In Oil & Gas and Power Generation applications, the 21000-34-10-20-058-04-02 housing assembly demonstrates high reliability in demanding operational conditions. Its 304 Stainless Steel construction provides excellent resistance to corrosion from process fluids, steam, and harsh atmospheric contaminants common in these industries. The rigid design ensures the probe's measurement gap remains stable, preventing measurement drift and false alarms, which is critical for the protection of high-speed turbomachinery. The 3/4 - 14 NPT mounting thread, when installed correctly with appropriate sealant, provides a secure, pressure-tight seal against machine casing pressures. This configuration is rated for hazardous area classifications when used with appropriate intrinsic safety barriers. The assembly's design minimizes susceptibility to mechanical shock and vibration, ensuring the integrity of the measurement signal path from the probe to the monitoring system for long-term, uninterrupted machinery protection.
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 21000-34-10-20-058-04-02 compatible with?
A: The 21000-34-10-20-058-04-02 contains a 3300 XL 8 mm probe. This probe is a component of a complete transducer system that must also include a 3300 XL extension cable and a 3300 XL Proximitor Sensor. The complete transducer system is directly compatible with Bently Nevada monitoring systems, including the 3500 Series, 3300 Series, and the Orbit 60 Series. It provides a standard analog voltage signal (typically 2 to 18 Vdc or -2 to -18 Vdc) to the monitor's input module for processing.
Q: What are the installation requirements?
A: Installation requires a machined mounting boss on the machine case with a 3/4 - 14 NPT tapped hole. The surface of the boss must be perpendicular to the shaft centerline to ensure accurate measurement. Use an appropriate thread sealant (e.g., PTFE tape or liquid sealant rated for the process temperature and fluid) on the NPT threads to create a secure seal and prevent loosening. The assembly should be tightened to the specified torque value. After mechanical installation, the probe gap must be set by adjusting the probe within the housing to achieve the desired DC voltage, typically the center of its linear range (e.g., -10 Vdc for a standard 80 mil / 2 mm range), before locking it in place.
21504-00-32-10-02 | Bently Nevada | Vibration Probe
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
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 21504-00-32-10-02 |
| Product Type | 3300 NSv Proximity Vibration Probe |
| Condition | Brand New |
| Warranty | 12 Months |
| Unthreaded Length | 0 mm |
| Case Length | 320 mm (12.6 in) |
| Total Length | 1.0 metre (3.3 feet) |
| Connector Type | Miniature coaxial ClickLoc connector, standard cable |
| Probe Tip Material | Polyphenylene Sulfide (PPS) |
| Case Material | AISI 304 Stainless Steel |
| System Linear Range | 2 mm (80 mils) |
| System Scale Factor | 7.87 V/mm (200 mV/mil) with 3300 NSv Proximitor |
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
- 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 21504-00-32-10-02 compatible with?
A: The 21504-00-32-10-02 probe is a component of the Bently Nevada 3300 NSv Proximity Transducer System. For correct operation, it must be used in conjunction with a 3300 NSv extension cable and a 3300 NSv Proximitor Sensor. The output from the Proximitor Sensor is compatible with Bently Nevada monitoring systems, including the 3500 and 3300 series, as well as any data acquisition system, PLC, or DCS capable of accepting a -24 Vdc powered, 7.87 V/mm (200 mV/mil) analog signal.
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.
330703-00-100-10-11-CN | Bently Nevada | 3300 XL 11 mm Proximity Probes
Technical Overview
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.
Detailed Specifications
| 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 ClickLocâ„¢ connector, gold-plated |
| Agency Approval | CN Ex (China Ex) for hazardous area installations |
Operational Capabilities
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.
Applications
- Steam and gas turbines for power generation
- Large centrifugal and reciprocating compressors in oil & gas processing
- Boiler feed water pumps and other critical pump applications
- Large electric motors and generators
- Gearboxes and other industrial rotating machinery with fluid-film bearings
- Integration into predictive maintenance and machinery protection systems (MPS)
- Axial (thrust) position and radial vibration monitoring
Technical FAQ
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.
16710-33 | Bently Nevada | Interconnect Cable
Technical Overview
The Bently Nevada 16710-33 is a multi-conductor, shielded interconnect cable designed for high-fidelity signal transmission within the 3500 Machinery Protection System. Its primary function is to provide a reliable electrical connection between a 3500 series I/O module and its associated external or internal termination blocks. This specific cable, with a length of 1.0 meter (3.3 feet), is critical for routing low-level analog signals from machinery sensors, such as proximity probes or accelerometers, to the monitoring modules for processing. The construction of the 16710-33 incorporates robust shielding to reject electromagnetic interference (EMI) and radio-frequency interference (RFI), ensuring high signal integrity, which is paramount for accurate vibration, position, and speed measurements. One end features a high-density D-subminiature connector for secure attachment to the I/O module, while the other end is configured for connection to the system's terminal strips. The precise engineering of the 16710-33 ensures that the signal characteristics are preserved throughout the measurement chain, enabling the 3500 system to perform its protective and diagnostic functions with maximum accuracy and reliability.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 16710-33 |
| Product Type | Interconnect Cable |
| Condition | Brand New |
| Warranty | 12 Months |
| Cable Length | 1.0 meter (3.3 feet) |
| Connector A | Female D-subminiature (DB-type) for 3500 I/O Module |
| Connector B | Pigtail with pre-stripped conductors for terminal block connection |
| Shielding | Overall aluminum/Mylar foil shield with drain wire for EMI/RFI rejection |
| Conductor Gauge | 22 AWG, stranded tinned copper |
| Operating Temperature | -30°C to +100°C (-22°F to +212°F) |
| Jacket Material | Industrial Grade PVC, Gray |
Operational Capabilities
In Oil & Gas and Power Generation applications, the 16710-33 interconnect cable demonstrates high reliability in continuous-duty environments. Its robust construction is engineered to withstand the typical ambient conditions of a plant floor, including moderate vibration and wide temperature swings as specified by its -30°C to +100°C operating range. The cable's performance is defined by its ability to maintain signal integrity for critical measurements on assets like gas and steam turbines, centrifugal and reciprocating compressors, and large pump systems. The multi-layer shielding is effective in mitigating electrical noise from variable frequency drives (VFDs), motors, and high-voltage lines, preventing signal corruption that could lead to false alarms or missed protection events. The design focuses on long-term stability, with high-quality connectors and strain relief that prevent intermittent connections, a common failure point in industrial settings. The 16710-33 is an integral component in achieving the high Mean Time Between Failure (MTBF) rates expected from a SIL-rated machinery protection system.
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 16710-33 compatible with?
A: The 16710-33 is specifically designed for use with the Bently Nevada 3500 Machinery Protection System. It is used to connect various 3500 I/O modules, such as the 3500/40M Proximitor Monitor, 3500/42M Proximitor/Seismic Monitor, and 3500/45 Position Monitor, to their corresponding external termination blocks (e.g., 3500/25 Keyphasor I/O, 3500/40 External Termination Block) or internal termination I/O modules. Compatibility is dependent on the specific I/O module and termination type being used in the 3500 rack configuration.
Q: What are the installation requirements?
A: Proper installation is critical for system performance. First, ensure all power to the 3500 rack is de-energized before installation. Securely fasten the D-sub connector of the 16710-33 to the rear of the designated I/O module using the integrated jackscrews. Route the cable through designated cable trays, avoiding sharp bends (maintain a minimum bend radius of 10x the cable diameter), pinch points, and proximity to high-voltage power cables to prevent physical damage and noise induction. Land the pre-stripped conductors of the pigtail end onto the correct terminals of the associated terminal block, following the wiring diagram specific to the monitor and transducer type. Ensure proper strain relief is applied to the cable at both ends. The cable's shield drain wire must be terminated correctly, typically at the rack chassis ground terminal only, to prevent ground loops per Bently Nevada system grounding guidelines.
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
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Bently Nevada 330104-00-14-10-11-00 Proximity Probes
Technical Overview
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Specifications
| Condition | New |


























