Product Overview
The Bently Nevada 330903-00-05-70-01-00 is a 3300 NSv proximity probe engineered for precise vibration and position monitoring in critical rotating machinery. This industrial automation module delivers reliable performance in process compressor applications where chemical resistance and accuracy are paramount. With a 7.0-meter total length and M8x1 thread configuration, it integrates seamlessly into existing monitoring systems.
Key Specifications
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Linear Range: 1.5 mm (60 mils), from 0.25 to 1.75 mm
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Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil)
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Probe DC Resistance: 5.9 ± 0.9 ohms
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Frequency Response: 0 to 10 kHz (+0, -3 dB)
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Operating Temperature: -52°C to +177°C
Performance and Reliability
The Bently Nevada 330903-00-05-70-01-00 offers a deviation from best fit straight line of less than ±0.06 mm (±2.3 mils), ensuring accurate measurements over the full linear range. Its probe tip is made of polyphenylene sulfide (PPS) and the case is AISI 304 stainless steel, providing durability in harsh environments. The 75-ohm coaxial cable with FEP insulation maintains signal integrity over long distances.
Applications
- Vibration monitoring on centrifugal and reciprocating compressors
- Shaft displacement and eccentricity measurements in turbines
- Axial position monitoring in pumps and motors
In process compressor applications, the enhanced chemical resistance of the 3300 NSv probe allows reliable operation where previous models might fail. Its side-view characteristics also outperform older 3000-series probes when gapping at the same distance from the target.
Installation and Setup
For optimal performance, mount the probe with the recommended torque of 7.3 N•m (65 in•lb) maximum, or finger tight for initial positioning. The M8x1 thread allows up to 12 mm of engagement. Ensure the target surface is clean and flat; minimum target diameter is 8.9 mm, but 13 mm is recommended for consistent scale factor.
Field wiring should use a three-conductor shielded triad cable with a maximum length of 305 meters (1,000 feet) between the Proximitor sensor and the monitor. For best results, use wire sizes between 0.2 and 1.5 mm² (16 to 24 AWG).
Maintenance Tips
Regularly inspect the probe cable for abrasion or damage, especially near the connector. The probe is designed to seal differential pressure with a Viton O-ring; however, it is not pressure tested before shipment. If your application requires a pressure seal test, contact the manufacturer's custom design department. Clean the probe tip with a soft cloth and mild solvent to maintain accuracy.
Compatibility and Integration
The Bently Nevada 330903-00-05-70-01-00 is mechanically and electrically compatible with previous 3300 RAM proximity probes and extension cables, making it a direct replacement for legacy systems. It works with Bently Nevada monitors that accept 3300 XL NSv Proximitor sensors.
Selection Guide
When ordering, verify the total length and connector options to match your installation. This unit includes a miniature coaxial ClickLoc connector with connector protector and standard cable. For custom pressure sealing requirements, consult the factory.
For authentic parts and expert support, choose PLC Source PRO as your supplier. We ensure every unit is new, original, and factory-packed for immediate deployment.