Bently Nevada 330881-28-00-86-07-02: PROXPAC XL Proximity Transducer Assembly
Product Description
The Bently Nevada 330881-28-00-86-07-02 is a high – precision PROXPAC XL Proximity Transducer Assembly, engineered to accurately measure the position and vibration of rotating machinery components. As a crucial part of machinery protection and condition monitoring systems, this assembly plays a vital role in early fault detection. It consists of a proximity probe, associated fittings, and cabling, all designed to work in harmony. The probe, in particular, uses electromagnetic induction principles to detect the distance between the probe tip and a target surface on the rotating equipment, providing real – time data that is essential for assessing machinery health.
Product Parameters
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Parameter
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Specification
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Probe Type
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3300 XL 8 mm proximity probe with multiple approvals
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Probe Penetration (c dimension)
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86 mm
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Fittings Option
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One M20 fitting, two plugs
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Mounting Thread Option
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3/4 – 14 NPT
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Power Requirements
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-17.5 VDC to -26 VDC without barriers at 12 mA maximum consumption; -23 VDC to -26 VDC with barriers. Operation at a more positive voltage than -23.5 VDC can reduce linear range.
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Supply Sensitivity
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Less than 2 mV change in output voltage per volt change in input voltage
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Output Resistance
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50 ohm
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Operating Temperature
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-51 °C to +177 °C (-60 °F to +350 °F)
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Product Specifications
- Probe Tip Material: Polyphenylene sulfide (PPS), offering high – temperature resistance and chemical stability, ensuring reliable performance in harsh industrial environments.
- Probe Case Material: AISI 304 stainless steel, providing excellent corrosion resistance and mechanical strength to withstand vibration and mechanical stress during machinery operation.
- Probe Cable: 1 – metre length, 75 – ohm triaxial, fluoroethylene propylene (FEP) insulated cable. The FEP insulation ensures low signal attenuation, high – frequency performance, and resistance to environmental factors such as moisture and chemicals.
- Weight: Approximately 1.5 kg, which is compact and lightweight enough for easy installation on various rotating machinery, yet robust enough to maintain stability during operation.
- Standoff Adapter Option: No standoff adapter is included in this configuration (as per the “00” in the part number), which may be suitable for direct – mount applications where space is limited or the design does not require additional standoff features.
Series
This Proximity Transducer Assembly belongs to the Bently Nevada 3300 XL series. The 3300 XL series is well – known for its high – quality and reliable proximity measurement solutions. These products are designed to meet the demanding requirements of industrial applications, especially in the monitoring of rotating machinery such as turbines, compressors, and pumps. The series is characterized by its modular design, which allows for easy customization and integration into existing machinery protection systems. It also adheres to strict industry standards, ensuring compatibility and performance across a wide range of industrial settings.
Features
High – Precision Measurement
The 8 mm proximity probe in the assembly is capable of providing highly accurate position and vibration measurements, enabling early detection of even minor changes in machinery operation. This precision is crucial for preventing potential equipment failures and minimizing unplanned downtime.
Multiple Approvals
The probe comes with multiple approvals, which means it has been tested and certified to meet various international safety, quality, and performance standards. This makes it suitable for use in a wide range of industries and applications around the world.
Temperature Resilience
With an operating temperature range of -51 °C to +177 °C, the transducer assembly can function effectively in extreme temperature conditions. This is especially useful in industries such as power generation, oil and gas, and chemical processing, where equipment may operate in high – temperature environments or in areas with significant temperature fluctuations.
Robust Construction
The use of AISI 304 stainless steel for the probe case and FEP – insulated cable contributes to the overall robustness of the assembly. It can withstand mechanical vibrations, harsh chemicals, and moisture, ensuring long – term reliable operation in challenging industrial environments.
Function
The primary function of the 330881 – 28 – 00 – 86 – 07 – 02 is to continuously monitor the position and vibration of rotating machinery components. The proximity probe emits an electromagnetic field, and as the target surface on the rotating equipment moves closer or farther away, the field is disrupted. The probe then converts this change into an electrical signal, which is proportional to the distance between the probe tip and the target. This signal is transmitted to a monitoring system, where it is analyzed to determine the health of the machinery. If abnormal vibrations or position changes are detected, the monitoring system can trigger alarms or initiate corrective actions to prevent equipment damage.
Use
In industrial settings, this proximity transducer assembly is typically installed on bearing housings, shafts, or other critical components of rotating machinery. For example, in a power generation plant, it can be used to monitor the vibration of a turbine shaft. The data collected by the transducer is used by operators and maintenance personnel to assess the performance of the machinery. By analyzing trends in the vibration and position data over time, they can predict potential problems and schedule maintenance proactively. In a manufacturing facility, it can be used to monitor the alignment of conveyor belts or the operation of motors, ensuring smooth production processes.
Application Fields
Power Generation
In coal – fired, gas – fired, and nuclear power plants, the 330881 – 28 – 00 – 86 – 07 – 02 is used to monitor the vibration and position of turbine shafts, generators, and pumps. This helps in maintaining the stability of power generation and preventing catastrophic failures that could lead to power outages.
Oil and Gas
In upstream drilling operations, mid – stream pipeline transportation, and downstream refining processes, it is used to monitor the condition of compressors, pumps, and turbines. The accurate data provided by the transducer helps in ensuring the safe and efficient operation of equipment in harsh and remote environments.
Chemical Processing
In chemical plants, it is used to monitor the vibration of agitators, mixers, and centrifuges. By detecting any abnormal vibrations or position changes, it helps in preventing process disruptions and potential safety hazards associated with the handling of hazardous chemicals.
Manufacturing
In various manufacturing industries, such as automotive, aerospace, and electronics, the proximity transducer assembly is used to monitor the operation of motors, conveyor systems, and robotic arms. This ensures the quality of production and helps in minimizing production line stoppages.
In conclusion, the Bently Nevada 330881 – 28 – 00 – 86 – 07 – 02 PROXPAC XL Proximity Transducer Assembly is a highly reliable and precise device for monitoring rotating machinery. Its features, specifications, and wide range of applications make it an essential component in maintaining the safety, efficiency, and reliability of industrial operations.
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