Product Overview
The Bently Nevada 330905-05-13-05-12-05 is a precision 3300 NSv proximity probe engineered for reliable vibration and position monitoring in critical rotating machinery. This Industrial Automation Module delivers accurate displacement measurements with a linear range of 1.5 mm (60 mils) and an incremental scale factor of 7.87 V/mm (200 mV/mil). With its M10x1 thread and 0.5-meter FluidLoc cable, the 330905-05-13-05-12-05 integrates seamlessly into existing Bently Nevada monitoring systems.
Designed for demanding process compressor applications, the 330905-05-13-05-12-05 offers enhanced chemical resistance compared to earlier 3300 RAM probes. Its side-view characteristics outperform the 3000-series 190 probe, ensuring consistent gapping accuracy. This new, factory-packed unit includes a 12-month warranty, making it a dependable spare for your predictive maintenance program.
Technical Specifications
Key parameters of the Bently Nevada 330905-05-13-05-12-05 include:
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Linear Range: 1.5 mm (60 mils), from 0.25 to 1.75 mm (10 to 70 mils) approximately -1 to -13 Vdc
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Recommended Gap Setting: 1.0 mm (40 mils)
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Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±12.5%/-20% including interchangeability error
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Deviation from Best Fit Straight Line (DSL): Less than ±0.06 mm (±2.3 mils)
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Frequency Response: 0 to 10 kHz: +0, -3 dB typical with up to 305 meters (1000 feet) of field wiring
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Probe DC Resistance: 4.0 ± 0.5 ohms (for 0.5 m probe)
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Operating/Storage Temperature: -52°C to +177°C (-62°F to +351°F)
These specifications ensure accurate, repeatable measurements even in harsh environments.
Industry Applications
The 330905-05-13-05-12-05 is ideal for:
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Process Compressors: Enhanced chemical resistance allows reliable operation in aggressive media.
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Turbomachinery: Monitor shaft vibration and axial position to prevent catastrophic failures.
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Pumps and Motors: Detect early signs of bearing wear or misalignment.
Its compatibility with previous 3300 RAM probes makes it a direct replacement, minimizing downtime during upgrades.
Installation & Setup Guidance
Proper installation is critical for optimal performance. Follow these guidelines:
- Mount the probe with the recommended torque: finger tight, maximum 0.56 N•m (5 in•lb) on the case.
- For M10x1 probe cases, the first three threads can withstand up to 22.6 N•m (200 in•lb) maximum, but recommended torque is 7.5 N•m (66 in•lb).
- Maintain a minimum bend radius of 25.4 mm (1.0 in) for the cable to prevent damage.
- Set the initial gap to 1.0 mm (40 mils) for linear operation.
- Use three-conductor shielded triad cable for field wiring; maximum length between sensor and monitor is 305 meters (1000 feet).
Maintenance & Reliability
Routine inspection of the probe tip and cable is recommended. The PPS tip and AISI 304 stainless steel case resist corrosion, but verify the Viton O-ring seal integrity in pressure applications. The probe is not pressure tested before shipment; contact the custom design department if pressure testing is required. Regular calibration checks ensure long-term accuracy.
Compatibility & Integration
The 330905-05-13-05-12-05 is mechanically and electrically interchangeable with the previous 3300 RAM probe and extension cable. It works with Bently Nevada 3300 XL NSv Proximitor Sensors and monitors. The miniature coaxial ClickLoc connector and FluidLoc cable ensure secure connections. For axial position measurements on shafts smaller than 13 mm (0.5 in), expect scale factor changes; reducing the gap helps limit variation.
Selection Guide & Purchasing Advice
Before purchasing, verify the unthreaded length (50 mm), overall case length (130 mm), total length (0.5 m), and connector type (miniature coaxial ClickLoc). The 330905-05-13-05-12-05 comes with multiple agency approvals. PLC Source PRO supplies this new, original unit with full factory warranty. Ensure your system matches the probe's specifications for seamless integration.