The Bently Nevada 21000-28-05-00-070-01-02 proximity probe provides precision vibration and displacement measurement using advanced eddy current technology. Features 8mm probe diameter with polycrystalline diamond tip, 2mm linear range, and 7.87 V/mm scale factor. Operating temperature range of -51°C to +177°C.
The 21000-28-05-00-070-01-02 is a premium quality Proximity Probe manufactured by Bently Nevada. This product is designed for professional industrial automation and control applications, delivering exceptional performance and reliability.
| Parameter | Specification |
|---|---|
| Model Number | 21000-28-05-00-070-01-02 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Product Series | 3300 XL 8mm Proximity Probe |
| Probe Diameter | 8 mm (0.315 in) |
| Probe Tip Material | Polycrystalline diamond |
| Linear Range | 2 mm (80 mils) nominal |
| Scale Factor | 7.87 V/mm (200 mV/mil) ±5% |
| Target Material | 4140 Steel (AISI) – standard |
| Cable Type | Coaxial with ETFE jacket |
| Connector Type | Miniature coaxial click-lock |
| Operating Temperature | -51 to +177 °C (-60 to +350 °F) |
| Maximum Pressure | 34 bar (500 psi) |
| Agency Approvals | CSA/NRTL/C, ATEX, IECEx |
Part Number: 21000-28-05-00-070-01-02
Manufacturer: Bently Nevada
Condition: Brand New
Warranty: 12 Months
Stock: In Stock
The Bently Nevada 200350-12-00-00 is a general-purpose, case-mounted industrial accelerometer designed for measuring absolute bearing housing or machine casing vibration. It utilizes a piezoelectric sensing element that generates a low-impedance voltage signal directly proportional to the acceleration of the component to which it is mounted. This analog voltage signal is transmitted via a two-wire system, which also supplies constant current power to the sensor's internal electronics (IEPE standard). The 200350-12-00-00 is specifically engineered for integration with Bently Nevada machinery protection systems, such as the 3500 series. It directly interfaces with the 3500/42M Proximitor/Seismic Monitor, which processes the raw acceleration signal. The monitor can then provide real-time acceleration data or perform single integration to derive velocity, a common parameter for assessing rotating machinery health. Constructed from 316L stainless steel with a hermetic seal, the 200350-12-00-00 is built to withstand harsh industrial environments, ensuring reliable signal transmission and long operational life in critical machinery monitoring applications.
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Part Number | 200350-12-00-00 |
| Product Type | Accelerometers |
| Condition | Brand New |
| Warranty | 12 Months |
| Sensitivity | 10.2 mV/m·s⁻² (100 mV/g) ±5% |
| Frequency Response | 0.5 Hz to 10 kHz (±3 dB) |
| Measurement Range | ±490 m/s² (±50 g) peak |
| Power Requirement (IEPE) | 18 to 30 VDC, 2 to 10 mA Constant Current |
| Connector | 2-pin MIL-C-5015, Top Exit |
| Operating Temperature Range | -55 °C to +121 °C (-67 °F to +250 °F) |
| Case Material | 316L Stainless Steel, Hermetically Sealed |
In Oil & Gas and Power Generation applications, the 200350-12-00-00 provides essential data for condition monitoring of critical assets like gas and steam turbines, compressors, pumps, and generators. Its reliability is substantiated by its robust construction; the hermetically sealed 316L stainless steel housing (rated to IP68) prevents ingress of moisture, chemicals, and particulates common in these environments. The sensor is designed for high MTBF (Mean Time Between Failures) through the use of solid-state electronics and minimal moving parts. Environmentally, the 200350-12-00-00 is specified to operate reliably from -55 °C to +121 °C, accommodating a wide range of ambient and machine surface temperatures. It is also designed to survive high-g shock events (up to 5000 g peak), ensuring data integrity is maintained even during machinery startup, shutdown, or upset conditions.
Q: What systems is the 200350-12-00-00 compatible with?
A: The 200350-12-00-00 is designed for primary compatibility with Bently Nevada monitoring systems, including the 3500 Machinery Protection System (interfacing with the 3500/42M Proximitor/Seismic Monitor) and the 3300 Monitoring System. It is also compatible with any third-party data acquisition or monitoring system that can provide standard IEPE (Integrated Electronics Piezo-Electric) sensor power, specifically a constant current source of 2 to 10 mA at a voltage of 18 to 30 VDC.
Q: What are the installation requirements?
A: Proper installation is critical for accurate measurement. The mounting surface must be a flat, smooth (recommended finish of 0.8 μm / 32 μin Ra), and clean area on the machine case. A single mounting hole must be drilled and tapped for the sensor's 1/4-28 UNF mounting stud. Apply a thin, uniform layer of coupling fluid (silicone grease) to the mounting surface to eliminate air gaps and ensure optimal vibration transmission. The sensor must be tightened to the specified torque of 2.7 to 5.4 N·m (24 to 48 lbf·in) using a calibrated torque wrench. Ensure the interconnecting cable is routed to prevent strain on the connector and is shielded from high-voltage lines or other sources of electromagnetic interference. Use of conduit is recommended for physical protection.
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.
| 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) |
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.
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.
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 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.
| 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 |
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.
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.
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