330101-00-33-05-02-00 Bently Nevada 3300 XL 8 mm Proximity Sensors Probe

Bently Nevada 330101-00-33-05-02-00 3300 XL 8 mm Probe

The Bently Nevada 330101-00-33-05-02-00, also cataloged as the 330101 Proximity Probe, operates as a dedicated hardware component for non-contact vibration and position monitoring within TSI platforms. Technicians mount this eddy-current transducer directly facing rotating shaft targets to capture continuous dynamic displacement and Keyphasor speed signals. The assembly delivers raw voltage variations to paired Proximitor sensors via an integrated 0.5-meter coaxial cable terminated with a miniature gold-plated ClickLoc connector.

Suffix Breakdown & Model Matrix

Hardware Specifications

Eddy-Current Probe Scaling and Rotor Dynamics

The unit executes precise eddy-current probe scaling by emitting a high-frequency radio frequency field from the 8 mm tip into the target shaft face. As radial or axial shaft movement alters the gap distance, the field induces localized eddy currents that shift total coil impedance. The connected Proximitor Sensor converts this impedance fluctuation into a proportional linear voltage output. Field engineers establish baseline calibration during initial setup by performing gap voltage validation (-10 VDC target setting at nominal mid-scale position). This consistent linear response enables monitoring systems to observe subtle orbit variations, evaluate complex rotor dynamics, and maintain high signal integrity through active cross-talk suppression between adjacent channels.

Frequently Asked Questions

Q: How does the ClickLoc connector maintain structural connection under continuous machine vibration? A: The gold-plated ClickLoc connector features an internal locking ring that snaps into place with an audible click, while the included option 02 protector sleeve slides over the outer junction to prevent physical disengagement and environmental fouling.

Q: Is the 330101-00-33-05-02-00 backwards compatible with legacy non-XL 3300 transducer components? A: Yes, the probe maintains complete electrical interchangeability with standard 3300 series 8 mm systems, allowing operators to drop the component directly into existing monitor loops without replacing the entire field signal chain.

Q: What installation step protects the miniature coaxial cable from mechanical abrasion inside machine housing? A: Technicians route the flexible cable through protective conduit or rigid armor channels, ensuring the routing path avoids sharp edges and respects the minimum bend radius constraint of 25.4 mm (1.0 in).

Field Installation Guidelines

Technicians must execute a step-by-step mechanical setup when installing the probe assembly. First, inspect the mounting port threads and target shaft surface to confirm zero physical burrs or rust accumulation. Screw the 3.3-inch probe body into the bracket while gently turning the output cable to prevent twisting the inner conductor braid. Next, connect a digital multimeter to the Proximitor Sensor output terminals and monitor the DC voltage while advancing the probe toward the target shaft.

Stop threading the probe when the multimeter indicates the target gap voltage (typically -10 VDC for API 670 applications), then tighten the jam nut against the mounting surface to lock the physical position. Connect the miniature coaxial ClickLoc termination securely until it clicks, and slide the connector protector over the junction. Route the 0.5-meter cable into dedicated metallic conduit, keeping the line separated from high-voltage AC motor wires. Finally, tie the cable braid shield to the system ground bus exclusively at the monitor rack to prevent unwanted ground loops across the TSI circuit.