Model: 330103-06-25-10-02-00
Product Overview
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Datasheet Preview
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Commercial Path
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Technical Dossier
The Bently Nevada 3300 XL Series represents one of the most widely deployed vibration monitoring platforms in global heavy industry. Installed across petrochemical complexes, nuclear power stations, offshore platforms, and refinery rotating equipment trains, the 3300 XL system provides continuous, real-time machinery protection for critical assets including steam turbines, gas compressors, centrifugal pumps, and gearboxes. Its eddy-current-based proximity measurement technology delivers non-contact displacement sensing with sub-micron resolution, making it the reference standard for API 670-compliant machinery protection systems. The platform's modular rack architecture allows integration into both legacy DCS environments and modern safety instrumented systems (SIS), ensuring long-term operational continuity for facilities with multi-decade asset lifecycles.
The 3300 XL Series succeeded the original Bently Nevada 3300 Series, introducing enhanced signal conditioning, improved EMI immunity, and tighter temperature compensation across the full operating range of -35°C to +85°C. The core transducer chain — probe, extension cable, and proximitor — was redesigned to maintain a system scale factor of 200 mV/mil (7.87 V/mm) with ±1% linearity across the calibrated gap range. Early 3300 deployments used discrete wiring to rack-mounted monitors; the XL generation introduced standardized I/O termination and compatibility with the 3500 Series rack system via signal conditioning adapters, enabling phased migration without full system replacement. The 8 mm probe diameter (as in SKU 330103-06-25-10-02-00) became the dominant form factor for general-purpose shaft vibration and position measurement, while 5 mm probes addressed space-constrained bearing housings. Connector standardization across the XL range — using the industry-standard 9-pin D-sub and coaxial BNC interfaces — reduced installation variability and simplified field replacement. As the 3300 XL has entered its mature/end-of-active-production lifecycle, facilities relying on this platform require specialist sourcing partners capable of supplying tested, certified replacement units to extend system life beyond OEM support windows.
The following SKUs represent verified, commonly deployed components within the Bently Nevada 3300 XL Series. Each entry is classified by functional role within the machinery protection system.
Proximity Probes (8 mm)
Proximity Probes (5 mm)
Extension Cables
Proximitor Sensors (Signal Conditioners)
Rack Monitors & I/O Modules
The 3300 XL proximity transducer system requires end-to-end calibration verification across the probe-cable-proximitor chain. DriveKNMS applies the following test protocol to all 3300 XL units prior to shipment: (1) Gap voltage linearity sweep across the full calibrated range using a certified steel target (AISI 4140), verifying 200 mV/mil ±1% scale factor; (2) Insulation resistance test on armored cable jacket at 500 VDC; (3) Connector integrity check for coaxial impedance continuity (50Ω nominal); (4) Proximitor output verification at -24 VDC supply, confirming quiescent voltage within specification at nominal gap; (5) High-temperature soak test at 70°C for 2 hours to screen latent thermal failures. Each unit ships with a test record traceable to the individual serial number. For rack-mounted monitor modules (e.g., 3300/16, 3300/20), functional simulation testing is performed using a calibrated signal source to verify trip setpoint accuracy and relay output integrity.
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