330104-02-08-10-01-00 | Bently Nevada | 3300 XL 8 mm Proximity Probes, Metric

Product Overview

The 330104-02-08-10-01-00 (330104-02-08-10-01-00) is a high-precision 3300 XL series 8 mm proximity probe engineered by Bently Nevada for critical machinery protection. This metric-threaded sensor serves as the primary sensing element for Turbine Supervisory Instrumentation (TSI) systems, delivering reliable eddy-current measurements of vibration and axial thrust. Designed for deployment in demanding sectors such as oil and gas refining, power generation, and heavy mining, this probe plays a vital role in predictive maintenance. By providing accurate displacement data to 3300 or 3500 series monitoring racks, it enables operators to detect early-stage mechanical faults, effectively reducing unscheduled downtime and preventing catastrophic equipment failure in high-speed rotating machinery.

Suffix Breakdown

The model number 330104-02-08-10-01-00 represents a specific configuration optimized for deep-reach industrial applications:

• 330104: 3300 XL 8 mm Proximity Probe, M10 x 1 thread.

• 02: Unthreaded Length Option - 20 mm.

• 08: Overall Case Length Option - 80 mm.

• 10: Total Length Option - 1.0 meter (3.3 feet).

• 01: Connector and Cable-Type Option - Miniature coaxial ClickLoc connector with connector protector, standard cable.

• 00: Agency Approval Option - No specific hazardous area approvals required for this configuration.

Technical Specifications

Technical FAQs

How do I verify the health of the 330104 probe during commissioning?

Verification is performed by measuring the "Gap Voltage" using a digital multimeter. With the probe connected to a powered Proximitor Sensor, the DC voltage output should typically be set to the midpoint of the linear range (approximately -10 VDC) relative to the target material.

Is this probe compatible with non-XL series Proximitor Sensors?

While 3300 XL probes are designed for use with 3300 XL Proximitor Sensors, they maintain partial backward compatibility. However, using mismatched components may result in a slight degradation of linearity and temperature stability. For maximum accuracy, a full XL-grade signal chain is recommended.

What is the benefit of the ClickLoc connector protector?

The 01 option includes a connector protector that prevents the coaxial connection from loosening due to machinery vibration. It also provides an environmental seal, preventing moisture or oil ingress from fouling the signal path between the probe lead and the extension cable.

Engineering & Installation Guide

• Gap Voltage Calibration: For standard vibration monitoring, the probe must be physically gapped using a feeler gauge or by monitoring the voltage output. Ensure the gap is set within the linear region of the sensor (typically between -2.0 VDC and -18.0 VDC). A standard set point for most rotating shafts is -10.0 VDC, representing the center of the 80-mil linear range.

• Installation Torque: Avoid over-tightening the M10 threads during installation to prevent case deformation or internal element damage. Use a calibrated torque wrench and do not exceed 13.5 Newton-meters (120 in-lb).

• Magnetic Interference: Ensure a minimum clearance of 13 mm (0.5 inches) of radial space around the probe tip from any surrounding metal other than the target surface. Failure to maintain this "side-clearance" will result in a distorted magnetic field and inaccurate displacement readings.