Bently Nevada 330104-00-08-50-02-00 3300 XL 8mm Probe

Product Identity

Brand: Bently Nevada
Model: 330104-00-08-50-02-00
Category: 3300 XL 8mm Proximity Probe

Technical Specifications

Parameter	Specification
Model	330104-00-08-50-02-00
Series	3300 XL
Probe Tip Diameter	8 mm
System Length	5 m (probe and extension cable)
Connector Type	ClickLoc coaxial connector
Probe Body Material	Stainless steel
Cable Material	FEP-insulated coaxial cable
Operating Temperature	−35 °C to +177 °C (probe tip)
Weight	Approximately 210 g (probe and cable)
Linear Range	2 mm (80 mils)
Sensitivity	7.87 V/mm (200 mV/mil)
Energy Storage	None (requires external driver and supply)

Overview

The 330104-00-08-50-02-00 belongs to the Bently Nevada 3300 XL series of eddy-current proximity probes. It measures shaft displacement, radial vibration, and axial position with high accuracy. Therefore, engineers specify it for critical rotating machinery protection. This probe pairs with a matching extension cable and Proximitor sensor. Consequently, the complete system delivers a calibrated voltage output proportional to gap distance.

How It Works

The probe tip contains a coil that the driver energizes with a high-frequency signal. This coil generates an alternating magnetic field around the tip. When a conductive shaft target enters the field, eddy currents form on its surface. These currents change the coil impedance, and the driver converts this change into voltage. As a result, the system tracks shaft position without physical contact. Furthermore, the non-contact design eliminates wear and extends service life.

Mounting and Installation

Technicians mount the through a threaded hole in the bearing housing. The 8 mm tip fits standard M10 or 3/8-24 mounting threads. Meanwhile, the ClickLoc connector simplifies cable attachment during installation. Proper target material and surface finish matter greatly for accurate readings. Therefore, installers should verify gap voltage against the calibration curve. Additionally, they must route the cable away from high-temperature zones.