Description

Bently Nevada 330103-00-10-10-01-00 3300 XL 8mm Proximity Probe

The Bently Nevada 330103-00-10-10-01-00 is a high-precision eddy current sensor engineered for non-contacting displacement measurements in critical rotating machinery. As a core component of the 3300 XL 8mm series, this proximity probe translates the physical distance between its tip and a conductive target—typically a machine shaft—into a linear voltage signal. This data is fundamental for monitoring radial vibration, axial thrust position, and eccentricity in high-speed industrial assets such as steam turbines, centrifugal compressors, and large-scale pumps.

Robust Engineering for Demanding Industrial Environments

This specific probe configuration is built to maintain signal integrity despite exposure to the volatile conditions found in power plants and refineries. Specifically, the 330103-00-10-10-01-00 features a polyphenylene sulfide (PPS) tip that is chemically resistant to lubricating oils and moisture. Furthermore, the system is designed to provide a standard scale factor of 200 mV/mil (7.87 V/mm) when paired with a matching 3300 XL Proximitor sensor. In addition, the probe includes a miniature coaxial ClickLoc connector, which ensures a secure, vibration-resistant electrical path. Consequently, this allows for highly accurate data acquisition even in areas subject to significant electromagnetic interference (EMI).

Technical Specification Matrix

Asset Protection and Predictive Maintenance

Deployment of the 330103 series probe is essential for modern predictive maintenance strategies. As a result, operators can identify mechanical anomalies such as bearing wear or shaft imbalance long before they lead to catastrophic failure. Moreover, the probe’s seamless integration with the Bently Nevada 3500 monitoring rack enables automated safety interlocks and high-speed machinery trips. Therefore, by providing real-time feedback on machine health, this transducer minimizes unplanned downtime and optimizes the service life of expensive rotating equipment. Ultimately, its long-term stability and repeatability make it a trusted standard for Turbine Supervisory Instrumentation (TSI).

FAQ

What does the “01” option signify in this model number?

The “01” option indicates that this probe is supplied with a standard miniature coaxial connector. Specifically, it does not include the additional connector protector sleeve found in the “02” configuration. Accordingly, it is ideal for installations where the connection point is housed inside a dry, protected terminal box.

Is this probe compatible with older 3300 systems?

Yes, the 3300 XL 8mm series is designed to be backward compatible with non-XL 3300 series Proximitors and extension cables. However, for the best linearity and temperature stability, it is recommended to use the complete 3300 XL transducer chain. Consequently, you should verify the total electrical system length (typically 5m or 9m) before installation.

Can the cable be shortened if it is too long for my application?

Coaxial cables for proximity probes are precision-tuned to a specific electrical length. Therefore, you must never cut or splice the cable, as this will alter the capacitance and ruin the calibration. Instead, any excess cable should be loosely coiled and secured in a way that avoids sharp bends or mechanical pinching.

How do I adjust the probe gap during installation?

The probe gap is typically set by monitoring the DC voltage output from the Proximitor. Specifically, for an 8mm probe, the “middle” of the linear range is usually set at approximately -10 VDC. Moreover, using a feeler gauge or a micrometer bracket during installation ensures the probe is physically positioned within its optimal 80-mil linear range.