16710-15 Bently Nevada

16710-15 Bently Nevada Filter Modules

Brand：BENTLY NEVADA Model number：16710-15

Country of origin: U.S. Product weight：0.55kg

HS code：8517623990

Product Details：

Product Dimensions：

Bently Nevada filter modules are electronic circuits that manipulate sensor signals to isolate specific frequency components or remove unwanted noise. This filtering process is vital for accurately analyzing machine health, identifying specific fault conditions (like imbalance, misalignment, or bearing defects), and preventing false alarms.

Functionality: These modules apply various types of filters (e.g., high-pass, low-pass, band-pass, notch, or tracking filters) to the dynamic signals received from proximity probes, velocity transducers, or accelerometers. The purpose is to:

Remove Noise: Eliminate irrelevant high-frequency noise or low-frequency transient events that can obscure critical vibration information.
Isolate Specific Frequencies: Focus on particular vibration frequencies associated with specific machine components (e.g., 1X, 2X, nX RPM components, or bearing defect frequencies).
Enhance Signal Quality: Improve the signal-to-noise ratio for more reliable measurements and analysis.
Prepare Data for Analysis: Condition the raw data for advanced diagnostic tools and software, such as System 1.

Types:

Analog Filter Modules: Historically, these would have been physical modules with analog circuitry.
Digital Filter Modules: Modern systems, like the Bently Nevada 3500 and Orbit 60 Series, often incorporate digital filtering capabilities directly within their monitor modules or dedicated data acquisition/processing modules. For instance, monitor modules for radial vibration (e.g., 3500/40M, 3500/42M) have configurable filters to extract specific components like 1X (synchronous) or 2X vibration. Specialized units like the Digital Vector Filter (DVF) or Tunable Filter/Vibration Meter (e.g., TK81) are dedicated instruments or modules specifically for advanced filtering and analysis.

Key Features:

Configurable Bandwidth: Users can often set the cutoff frequencies for high-pass, low-pass, or the center frequency and bandwidth for band-pass/tracking filters.
Tracking Filter Capability: Essential for rotating machinery, a tracking filter automatically adjusts its center frequency to track a specific multiple of shaft rotational speed (e.g., 1X, 2X), even during speed changes (run-up/coast-down).
Multiple Filter Types: Offering options for overall (direct) measurements, 1X filtered, 2X filtered, Not 1X filtered, and bandpass filtered data.
Integration: Designed to seamlessly integrate with Bently Nevada's monitoring systems (e.g., 3500 series racks, Orbit 60 series) and software platforms (e.g., System 1).

Product Parameters

Parameters vary depending on whether the filter is a standalone module, an integrated feature of a monitor module, or a dedicated data acquisition instrument.

Frequency Range: The range of frequencies the filter can operate within (e.g., from a few CPM to several kHz).
Tracking Filter Bandwidth: Often expressed in Constant Q (e.g., 3 or 5 Hz bandwidth) or as a percentage of the tracked frequency.
Filter Rolloff: The steepness of the filter's attenuation, typically described in dB per octave or decade (e.g., 6-pole filter).
Number of Channels: How many transducer inputs the module can filter simultaneously.
Input Compatibility: Designed for specific transducer types (proximity, velocity, acceleration).
Signal Output: Filtered analog signals (e.g., 4-20mA for proportional outputs) or digital data outputs for software analysis.
Operating Temperature: Standard industrial ranges, typically -30°C to +65°C (-22°F to +150°F).
Power Consumption: Power required for the module's operation.
Communication Interface: How the module communicates settings and data with the monitoring system (e.g., internal backplane, Ethernet).

Product Advantages

Accurate Diagnostics: By isolating specific vibration components, filter modules enable more precise identification of machinery faults (e.g., imbalance at 1X RPM, misalignment at 2X RPM, bearing defects at higher frequencies).
Reduced False Alarms: Filtering out extraneous noise or non-critical vibration sources prevents nuisance alarms, allowing operators to focus on genuine machinery issues.
Enhanced Data Quality: Improves the signal-to-noise ratio, leading to more reliable and actionable data for condition monitoring programs.
Proactive Maintenance: Enables early detection of developing faults, allowing for planned maintenance interventions before catastrophic failure.
Optimized Performance: Contributes to maximizing asset uptime and production by providing clear insights into machine health.
Flexibility: Configurable filters allow adaptation to different machine types, speeds, and specific diagnostic needs.

Important Considerations

Correct Filter Selection: Choosing the appropriate filter type (high-pass, low-pass, band-pass, or tracking) and bandwidth is critical for accurate analysis and avoiding misdiagnosis. Incorrect filtering can obscure vital information.
Understanding Machine Dynamics: Effective use of filter modules requires knowledge of the machine's operating speeds, critical frequencies, and potential fault frequencies.
Integration with Overall System: Filter modules are part of a larger monitoring system. Ensure proper integration with sensors, monitor modules, data acquisition hardware, and diagnostic software (like System 1).
Configuration: Proper configuration of filter settings through the system's software is essential for obtaining meaningful data.
Calibration: Ensure that the entire measurement chain, including filters, is properly calibrated for accurate readings.
Obsolescence Management: For older filter modules or standalone instruments, consider their lifecycle status and plan for potential upgrades to newer Bently Nevada systems that offer integrated digital filtering.

Product Applications

Bently Nevada filter modules are primarily used in critical and essential rotating and reciprocating machinery across various heavy industries:

Power Generation:

Steam and Gas Turbines: Monitoring rotor imbalance, misalignment, bearing wear, and shaft cracks.
Generators: Analyzing vibration from generator components.
Pumps and Fans: Ensuring smooth operation of auxiliary equipment.

Oil and Gas:

Compressors (Centrifugal, Axial, Reciprocating): Detecting issues like surge, valve problems, and rod drop.
Turbine-Driven Pumps: Monitoring critical pumping systems.
Pipelines: Condition monitoring of critical pumping stations.

Petrochemical and Refining:

Reactors and Mixers: Ensuring structural integrity and preventing excessive vibration.
Heat Exchangers: Monitoring for flow-induced vibration.

Manufacturing and Metals:

Large Motors and Drives: Assessing bearing and coupling health.
Rolling Mills: Monitoring for vibration related to process stability.

Other Industries:

Water and Wastewater Treatment: Monitoring large pumps and blowers.
Mining: Monitoring crushers, mills, and conveyor drives.

3701/55 289761-01 Bently Nevada

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