Bently Nevada 330709-000-050-50-02-00 Proximitor Sensor

Overview

The Bently Nevada 330709-000-050-50-02-00 serves as a crucial component within the 3300 XL 11 mm Proximity Transducer System. This sensor conditions signals from eddy-current probes for critical machinery monitoring. Consequently, engineers specify it across power generation, oil and gas, and heavy manufacturing facilities.

Technical Specifications

The unit features a compact 50 mm case length and a 5.0-meter cable. Its M16 × 1.5 metric thread ensures secure mounting in standard ports. Additionally, the 11 mm system provides a 4.0 mm linear range for extended displacement measurements.

Parameter	Value
Probe Tip Diameter	11 mm
Case Length	50 mm
Cable Length	5.0 meters (16.4 feet)
Thread Type	M16 × 1.5 metric
Weight	0.7 kg
Linear Range	4.0 mm (160 mils)
Scale Factor	3.94 V/mm (100 mV/mil)
Probe DC Resistance	7.2 ± 0.8 ohms
Tip Material	Polyphenylene Sulfide (PPS)
Case Material	AISI 304 Stainless Steel
Cable Type	75 Ω triaxial, FEP insulated
Operating Temperature	-52°C to +177°C
Connector Type	Miniature coaxial ClickLoc

Performance and System Integration

This sensor pairs with 3300 XL 11 mm probes and matching extension cables. Therefore, it integrates seamlessly into existing machinery protection systems. The non-contact eddy current technology maintains accuracy despite oil, dust, and temperature fluctuations.

Moreover, the gold-plated ClickLoc connector ensures low-resistance signal transfer. The 75-ohm triaxial FEP cable resists electrical noise in demanding industrial settings. The system handles minimum target sizes of 30.5 mm for flat surfaces.

Applications and Reliability

Steam turbines, gas turbines, compressors, and centrifugal pumps commonly use this system. Maintenance teams rely on it for early detection of bearing wear and shaft instability. Each unit ships factory-sealed with a twelve-month warranty.