Product Overview
The Bently Nevada 330904-00-15-05-01-05 is a precision 3300 NSv proximity probe designed for reliable vibration and position monitoring in critical rotating machinery. This industrial automation module is engineered for process compressor applications where chemical resistance is essential. With its M8X1 thread and stainless steel armor, the probe withstands harsh environments while delivering accurate measurements.
The 330904-00-15-05-01-05 is mechanically and electrically interchangeable with previous 3300 RAM probes, making it a seamless upgrade for existing systems. Its improved side-view characteristics ensure superior performance when gapping at the same distance from the target.
Key Specifications
- Probe dc resistance: 4.0 ± 0.5 ohms (0.5 m probe length)
- Linear range: 1.5 mm (60 mils), from 0.25 to 1.75 mm (10 to 70 mils)
- Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) +12.5%/-20%
- Deviation from best fit straight line: less than ±0.06 mm (±2.3 mils)
- Frequency response: 0 to 10 kHz (+0, -3 dB) with up to 305 meters of field wiring
- Operating temperature: -52°C to +177°C (-62°F to +351°F)
- Probe tip material: Polyphenylene sulfide (PPS)
- Probe case material: AISI 304 stainless steel
- Cable: 75 Ω coaxial, FEP insulated, 0.5 m total length
Performance Characteristics
The 330904-00-15-05-01-05 delivers a linear range of 1.5 mm (60 mils) with a recommended gap setting of 1.0 mm (40 mils). The incremental scale factor of 7.87 V/mm (200 mV/mil) ensures consistent output across the measurement range. The probe's deviation from best fit straight line remains below ±0.06 mm (±2.3 mils), guaranteeing high accuracy.
With a frequency response of 0 to 10 kHz, the probe captures dynamic vibrations effectively. The probe is suitable for axial position measurements on shafts, but for shafts smaller than 13 mm (0.5 in) diameter, scale factor changes may occur; reducing the gap helps limit this effect.
Installation & Setup
Install the Bently Nevada 330904-00-15-05-01-05 with finger-tight torque (maximum 0.56 N•m or 5 in•lb) to avoid damaging the threads. Maintain a minimum bend radius of 25.4 mm (1.0 in) for the cable, with or without armor. For field wiring, use a three-conductor shielded triad cable with 0.2 to 1.5 mm² (16 to 24 AWG) conductors. The maximum distance between the Proximitor Sensor and the monitor is 305 meters (1,000 feet).
Ensure the probe tip is properly gapped at 1.0 mm (40 mils) from the target surface. The linear range begins at approximately 0.25 mm (10 mils) from the target, so avoid mounting the probe too close.
Maintenance & Reliability
The 330904-00-15-05-01-05 requires minimal maintenance due to its robust construction. The PPS probe tip and stainless steel case resist chemical attack, making it ideal for process compressor environments. The Viton O-ring seals differential pressure between the probe tip and case, but probes are not pressure tested prior to shipment. If your application demands a pressure seal test, contact the custom design department.
Regularly inspect the probe cable for damage and ensure the connector remains clean and secure. The operating and storage temperature range of -52°C to +177°C (-62°F to +351°F) allows deployment in extreme conditions.
Compatibility & Integration
The Bently Nevada 330904-00-15-05-01-05 is compatible with Bently Nevada's 3300 XL NSv Proximitor Sensor systems. It is mechanically and electrically interchangeable with previous 3300 RAM probes and extension cables, simplifying upgrades. The miniature coaxial ClickLoc connector with connector protector ensures a secure connection.
This proximity probe is designed for use with Bently Nevada monitors and can be integrated into existing vibration monitoring systems. The probe's output signal (approximately -1 to -13 Vdc over the linear range) interfaces directly with compatible monitoring equipment.
Selection Guide
When selecting the 330904-00-15-05-01-05, verify the total length option (0.5 meter), connector type (miniature coaxial ClickLoc), and agency approvals (multiple). This model features an unthreaded length of 0 mm and overall case length of 150 mm. For applications requiring longer cables, consider other total length options (1, 5, or 7 meters) within the 3300 NSv series.
Ensure the target size meets the recommended minimum of 13 mm (0.5 in) diameter for optimal performance. For shafts smaller than this, consult the application notes to manage scale factor variations.
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