Product Introduction
The Bently Nevada 330903-00-05-70-12-05 is a 3300 NSv proximity probe designed for precise vibration and position monitoring in rotating machinery. This industrial automation module features an M8x1 thread, a 7.0-meter (23.0 feet) total length, and a miniature coaxial ClickLoc connector with FluidLoc cable. It is supplied new and original in factory packing, backed by a 12-month factory warranty.
Technical Specifications
Key parameters of the Bently Nevada 330903-00-05-70-12-05 include:
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Probe DC Resistance: 5.9 ± 0.9 ohms (center conductor to outer conductor)
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Linear Range: 1.5 mm (60 mils), from 0.25 to 1.75 mm (10 to 70 mils)
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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) with +12.5%/-20% 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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Target Size (flat target): Minimum 8.9 mm (0.35 in) diameter; recommended minimum 13 mm (0.5 in) diameter
Compatibility & Integration
The 330903-00-05-70-12-05 is mechanically and electrically compatible with Bently Nevada's previous 3300 RAM proximity probe and extension cable, ensuring straightforward replacement in existing installations. The NSv probe offers increased chemical resistance, making it suitable for process compressor applications. It works with the 3300 XL NSv Proximitor Sensor, and field wiring can extend up to 305 meters (1,000 feet) between the sensor and the monitor.
Installation & Setup Guidance
When installing the Bently Nevada 330903-00-05-70-12-05, ensure the probe tip is positioned at the recommended gap of 1.0 mm (40 mils) from the target surface. Use finger-tight torque for the probe case; maximum torque is 0.56 N•m (5 in•lb). For M8X1 probe cases, the maximum rated torque is 7.3 N•m (65 in•lb) and recommended is 5.1 N•m (45 in•lb). The probe case thread has a maximum engagement length of 12 mm. Maintain a minimum bend radius of 25.4 mm (1.0 in) for the cable to prevent damage.
Maintenance & Reliability
The Bently Nevada 330903-00-05-70-12-05 is built with robust materials: the probe tip is made of polyphenylene sulfide (PPS), and the probe case is AISI 304 stainless steel. It operates reliably in temperatures from -52°C to +177°C (-62°F to +351°F), with the same range for storage. The probe is designed to seal differential pressure between the tip and case using a Viton O-ring. Although not pressure tested before shipment, it meets the demands of many industrial environments. Regular inspection of the cable and connector is recommended to ensure consistent performance.
Selection Guide & Purchasing Advice
Before purchasing, verify the total probe length, connector type, and thread configuration match your application requirements. The 330903-00-05-70-12-05 includes a 7.0-meter (23.0 feet) cable with a miniature coaxial ClickLoc connector and FluidLoc cable, ideal for installations requiring extended reach. For reliable sourcing, PLC Source PRO offers this genuine Bently Nevada module with a 12-month factory warranty, ensuring you receive an authentic, ready-to-install component.