Description

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The Bently Nevada 3300 XL NSv sensor system is a core component designed for vibration and displacement monitoring of rotating machinery. It is suitable for harsh environments such as power, petrochemical, and metallurgical industries, complies with API 670 standards and explosion-proof certifications (such as CSA, ATEX, IECEx), and is suitable for explosion-proof chemical environments and high-temperature scenarios.

　　Key Technical Parameters and Structure

Probe Characteristics:

Model 330910-00-05-50-02-CN, M10x1 threaded mounting, armored design, built-in eddy current sensor, sensitivity 7.87 mV/μm (200 mV/mil) ±6.5%, linear range 2mm (80 mils), effective range 0.25-2.3mm.

Frequency response 0-10kHz, covering a wide frequency range of vibration signals; operating temperature -52℃ to +177℃ (high temperature option up to 218℃), protection rating IP67/NEMA 4X, resistant to corrosion, moisture, and electromagnetic interference.

　　Cable and System Components:

Extension Cable: Length optional 5m/9m, maximum field wiring length up to 305m (customization required); uses FluidLoc technology to prevent oil leakage, armored design for enhanced wear resistance, ClickLoc gold-plated copper connector, supports finger tightening without tools.

Preamplifier: Receives, amplifies, and filters probe signals, outputting voltage/current signals (e.g., 4-20mA). Compatible with monitoring modules such as 3500/40M and 2300/20, supporting DIN rail/panel mounting.

System Assembly: The total length of the probe, extension cable, and preamplifier must match to ensure signal integrity; supports modular interchangeability without additional calibration.

Protection Design: Armored structure, FluidLoc oil leakage resistant design, IP67/NEMA 4X protection rating, operating temperature range -52℃ to +260℃ (high temperature option), suitable for harsh environments.

　　System Compatibility:

Seamlessly integrates with 3300 XL series probes, preamplifiers, and monitoring modules (e.g., 3500/40M, 3500/50), supporting industrial protocols such as Modbus and PROFINET.

The probe and cable connection utilizes TipLoc mold technology and ClickLoc gold-plated copper connectors, achieving a secure connection that locks without tools, supporting hot-swapping and quick replacement.

　　Core Application Scenarios

Rotating Machinery Monitoring: Turbine/generator shaft vibration, axial displacement, and differential expansion measurement; centrifugal pump/compressor radial vibration and key phase detection; fan, motor, and gearbox condition analysis.

Harsh Environment Adaptability: High-temperature gas turbines (≤200℃), corrosive chemical environments (explosion-proof model – CN suffix), humid/dust environments (IP67 protection).

Special Scenarios: Measurement of small target areas (e.g., shaft diameter <51mm), compatible with liquid film bearing machinery, supports tachometer and zero-speed measurement.

　　Technical Highlights and Advantages

High Precision and Stability: Accuracy ±5% within the linear range, excellent temperature stability, supports dual-mode measurement of static displacement and dynamic vibration; incremental scaling factor 7.87 V/mm (200mV/mil), deviation <±0.06mm.

Modular Design: Probes, cables, and preamplifiers can be combined arbitrarily without matching calibration, reducing maintenance costs; supports hot-swapping and quick replacement, compatible with DIN rail/panel mounting.

Environmental Adaptability: Designed for protection against high temperatures, corrosion, and humidity; explosion-proof certified for hazardous areas, compliant with API 670 standards.

Compatibility and Expansion: Compatible with 3500 frame systems, GE Mark VIe control platforms, and industrial protocols such as Modbus/PROFINET; supports collaboration with third-party devices such as EPRO and Bently, providing customized solutions.

Intelligent Diagnostics: Gap voltage monitoring and signal quality analysis functions; supports remote diagnostics and system integration.

　　Installation and Maintenance Guidelines

　　Installation Requirements:

Adjust the probe gap to 1.0mm ± 0.1mm, ensuring the output voltage is within the range of -10V to -12V; avoid parallel cable routing with power cables, and use single-point grounding and shielding grounding.

For high-temperature environments, select temperature-resistant models; for explosion-proof scenarios, select products with the -CN suffix certification; ensure good heat dissipation and avoid overpower operation. Anti-interference and Maintenance Methods

　　Anti-interference Design:

The cable employs a triaxial shielding structure and fluorinated ethylene propylene insulation layer, effectively suppressing electromagnetic interference (EMI) and radio frequency interference (RFI).

The armored structure and FluidLoc design prevent oil leakage and mechanical wear, ensuring signal transmission stability.

　　Maintenance Cycle and Content:

Daily Inspection: Regularly check the cable’s fixation, bending radius, insulation performance, and connection point temperature; clean oil stains from the cable surface and prevent the adhesion of corrosive substances.

Periodic Testing: Conduct insulation tests and preventative tests annually (e.g., a withstand voltage test annually for 6kV cables, and an insulation test annually for 380V cables) to ensure cable quality and workmanship meet standards.

Troubleshooting: If signal abnormalities occur (e.g., voltage deviation from -10V to -12V), check the probe coil resistance (5-15Ω), insulation resistance (>100MΩ), and cable conductivity; electromagnetic interference problems can be resolved by optimizing grounding and shielding measures.

　　Application Scenarios and Advantages

Core Applications: Steam turbine/generator shaft vibration monitoring, centrifugal compressor radial vibration measurement, fan/motor displacement detection, petrochemical equipment differential expansion analysis, etc.

　　Technical Advantages:

High Precision and Stability: Accuracy ±5% within the linear range, excellent temperature stability, supports dual-mode measurement of static displacement and dynamic vibration;

Modular Design: Probes, cables, and preamplifiers can be combined arbitrarily without calibration, reducing maintenance costs;

Environmental Adaptability: High temperature resistant, explosion-proof, and corrosion-resistant, suitable for harsh industrial environments;

Compatibility and Expandability: Supports integration with GE, Siemens, and other DCS/PLC systems, compatible with upgrades to traditional 7200 systems.

Summary: The 330910-00-05-50-02-CN cable, with its high precision, strong anti-interference capability, and adaptability to harsh environments, has become a core component for vibration monitoring of rotating machinery.

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