SKU: 330105-02-12-10-02-05

Bently Nevada 330105-02-12-10-02-05 3300 XL 8mm Proximity Transducer

The Bently Nevada 330105-02-12-10-02-05 is a high-performance 3300 XL 8mm Proximity Probe featuring an M10x1 metric thread. Designed for critical machinery protection, it provides accurate non-contact vibration and position measurements in extreme temperatures ranging from -52°C to +177°C.

Equipment Purpose and Functional Role

The Bently Nevada 330105-02-12-10-02-05 belongs to the 3300 XL 8mm Proximity Transducer System, the industry standard for measuring vibration and position on fluid-film bearing machines. This eddy current probe measures the distance between the probe tip and the observed conductive target, such as a rotating shaft. By converting this physical distance into a proportional voltage, the probe allows the 3500 Monitoring System to track radial vibration, axial thrust, and phase reference (Keyphasor) data.

Detailed Technical Specifications

Brand: Bently Nevada
Part Number: 330105-02-12-10-02-05
Probe Type: 3300 XL 8mm Proximity Probe
Thread Size: M10 x 1 Metric Thread
Unthreaded Length: 20 mm
Overall Case Length: 120 mm
Total Cable Length: 1.0 meter
Connector Type: Miniature coaxial ClickLoc connector with connector protector
Agency Approval: Multi-Approvals (ATEX, IECEx, CSA) for hazardous areas
Linear Range: 2.0 mm
Operating Temperature: -52°C to +177°C

Core Benefits and Industrial Applications

Precision-engineered for reliability, the 330105-02-12-10-02-05 utilizes a polyphenylene sulfide (PPS) tip that resists chemical corrosion and moisture penetration. Because the probe employs a non-contact measurement method, it suffers no mechanical wear during operation, ensuring a long lifecycle in high-speed rotating equipment. Maintenance teams commonly deploy these probes in:

Steam and Gas Turbine Supervisory Instrumentation (TSI)
Large-scale centrifugal and axial compressors
Boiler feed pumps and cooling tower fans
Gearbox input/output shaft monitoring

Installation and System Integration

For optimal performance, engineers must pair this probe with a matching 3300 XL Extension Cable and a 3300 XL Proximitor Sensor. The total length of the probe cable and extension cable must equal the calibrated length of the Proximitor (typically 5.0 or 9.0 meters). Furthermore, proper gapping—usually set at the center of the linear range—is essential to prevent “mechanical bottoming” or signal clipping. The included connector protector ensures that the coaxial connection remains isolated from oil and contaminants within the machine housing.