Bently Nevada 330850-50-00 Proximity Sensor

Product Overview

The 330850-50-00 belongs to the Bently Nevada 3300 XL 5/8 mm proximity sensor family. This non-contact transducer measures shaft vibration and displacement in rotating machinery. Moreover, it serves steam turbines, compressors, and centrifugal pumps across power generation and petrochemical plants. The sensor operates with a 5 mm linear range and delivers precise, repeatable measurements under harsh industrial conditions.

Technical Specifications

Parameter	Value
Model	330850-50-00
Series	3300 XL, 5/8 mm
Linear Range	5 mm (200 mV/mil)
Total Length	0.5 m (50 = 50 cm cable)
Probe Diameter	5/8 inch (15.9 mm)
Thread Type	3/8-24 UNF
Connector	ClickLoc coaxial, 3-pin
Operating Temperature	-35°C to +177°C
Frequency Response	0 to 10 kHz
Weight	Approximately 85 g
Output Sensitivity	7.87 mV/µm (200 mV/mil)
Cable Material	FEP-insulated, stainless steel armor
Mounting	Reverse mount, case-isolated

Key Features and Compatibility

Furthermore, the 330850-50-00 integrates seamlessly with 3300 XL Proximitor sensors and extension cables. The ClickLoc connector eliminates loose connections without special tools. In addition, the stainless steel armor protects the cable from abrasion and chemical exposure. Its 5/8 mm probe tip suits tight clearance installations where larger probes cannot fit.

Industrial Applications

Consequently, maintenance teams rely on this sensor for API 670 compliant vibration monitoring. It detects radial shaft vibration, axial thrust position, and keyphasor reference signals. The 330850-50-00 also supports overspeed detection and rotor dynamic analysis. Therefore, engineers specify it for turbines, motors, and gearboxes requiring continuous condition monitoring.

Why Choose This Sensor

Additionally, the 330850-50-00 meets API 670 and ISO 20816 measurement standards. Its case-isolated design prevents ground loop interference in electrically noisy environments. Meanwhile, the FEP cable withstands temperatures up to 177°C without signal degradation. As a result, plants reduce unplanned downtime and extend machinery service life.