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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.
330102-00-60-10-01-05 | Bently Nevada | 3300 XL 8 mm Proximity Probes
Technical Overview
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.
Detailed Specifications
| 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 ClickLocâ„¢ 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) |
Operational Capabilities
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.
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 330102-00-60-10-01-05 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.
84661-67 | Bently Nevada | Velomitor Interconnect Cable
Technical Overview
The Bently Nevada 84661-67 is a specialized interconnect cable engineered for the transmission of low-level analog signals from Velomitor piezo-velocity sensors to a machinery protection system. Its primary function is to provide a reliable, noise-immune physical link between a sensor mounted on rotating machinery and a monitoring module, such as the Bently Nevada 3500/42M. The cable is constructed with a shielded, twisted-pair configuration using 22 AWG conductors. This design is critical for preserving the integrity of the millivolt-level velocity signal by minimizing interference from electromagnetic (EMI) and radio frequency (RFI) sources common in industrial environments. The 84661-67 cable transmits the dynamic voltage signal proportional to the machine's case vibration velocity, enabling the 3500 system to perform accurate vibration analysis and machinery diagnostics. The cable features a ruggedized jacket for resistance to industrial chemicals and abrasion, and its specific length and connectorization are designed for seamless integration without field modification, ensuring consistent system performance and measurement accuracy.
Detailed Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 84661-67 |
| Product Type | Velomitor Interconnect Cable |
| Condition | Brand New |
| Warranty | 12 Months |
| Cable Length | 67 feet (20.4 meters) |
| Cable Construction | Shielded, twisted pair, 22 AWG (0.34 mm²) conductors |
| Sensor End Connector | 2-socket MIL-C-5015 style, environmentally sealed |
| Monitor End Connection | Prepared leads for terminal block installation on 3500/42M I/O module |
| Shielding | Overall aluminum/polyester foil shield with tinned copper drain wire |
| Jacket Material | Chlorinated Polyethylene (CPE) for oil and chemical resistance |
| Operating Temperature Range | -30°C to +100°C (-22°F to +212°F) |
Operational Capabilities
In Oil & Gas and Power Generation applications, the 84661-67 interconnect cable demonstrates high reliability and signal fidelity under demanding operational conditions. Its robust CPE jacket provides protection against hydrocarbons, corrosive chemicals, and mechanical abrasion frequently encountered in these environments. The specified operating temperature range of -30°C to +100°C ensures consistent performance from cold startups to high-temperature operating conditions near turbines, compressors, and pumps. The cable's shielding effectiveness is critical for transmitting clean, low-noise vibration signals from Velomitor sensors, which is essential for the accurate detection of machinery faults such as imbalance, misalignment, and bearing degradation. Proper installation, including correct shield grounding at the monitor end only, prevents ground loops and ensures the high signal-to-noise ratio required for the advanced diagnostic algorithms within the 3500 monitoring 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 84661-67 compatible with?
A: The 84661-67 cable is designed primarily for use with the Bently Nevada 3500 Machinery Protection System, connecting directly to the terminal block of a 3500/42M Velomitor/Seismic Monitor I/O Module. It is compatible with Bently Nevada Velomitor sensors, including the 330500 and 330525 models, and other piezo-velocity sensors that utilize a 2-pin MIL-C-5015 style connector and have similar output characteristics.
Q: What are the installation requirements?
A: Proper installation is critical for signal integrity. 1) Route the 84661-67 cable in dedicated instrument trays or conduit, separated from high-voltage power cables to prevent induced noise. 2) The cable shield drain wire must be terminated at the instrument ground (GND) terminal on the 3500/42M I/O module. Do not connect the shield at the sensor end to prevent ground loops. 3) Ensure the connector at the sensor is fully seated and the locking ring is tightened to maintain the environmental seal. 4) Secure the cable with appropriate clamps to provide strain relief and prevent vibration-induced damage to the cable or connectors. Adhere to a minimum bend radius of 10 times the cable's outer diameter.
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.
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Bently Nevada 330104-00-14-10-11-00 Proximity Probes
Technical Overview
The Bently Nevada 330104-00-14-10-11-00 Proximity Probes is a genuine industrial component.
Specifications
| Condition | New |


























