Bently Nevada 330104-00-06-20-01-00 Proximity Probe

The 330104-00-06-20-01-00 belongs to the Bently Nevada 3300 XL 8 mm proximity probe family. Industrial teams rely on this sensor for precise shaft vibration and position measurement. Consequently, it supports continuous condition monitoring across steam turbines, compressors, and large motors.

Key Technical Parameters

Parameter	Specification
Probe Tip Diameter	8 mm
Thread Type	3/8-24 UNF
Overall Case Length	60 mm
Unthreaded Length	20 mm
Cable Length	1.0 metre
Connector Type	Miniature coaxial (ClickLoc)
Weight	Approximately 110 g
Operating Temperature	-35 °C to +177 °C
Linear Range	2.0 mm (80 mils)
Recommended Gap	1.27 mm (50 mils)
Frequency Response	0 to 10 kHz
Output Sensitivity	7.87 mV/µm (200 mV/mil)

How the Probe Works

This device measures displacement through eddy current technology. The probe tip emits a high-frequency magnetic field toward the target shaft surface. Shaft movement alters field impedance, and the transducer converts this change into a proportional voltage signal. Meanwhile, the included extension cable maintains signal integrity over long routing distances.

Interface and System Compatibility

The 330104-00-06-20-01-00 pairs with 3300 XL extension cables and Proximitor sensors. It uses a standard miniature coaxial connector for secure mating. Furthermore, the 3/8-24 UNF thread enables direct mounting into bearing housings or brackets.

Installation and Environmental Considerations

Proper target material selection matters greatly for accurate readings. A-ISI 4140 steel remains the standard reference material for calibration. Therefore, other alloys may require a correction factor. The probe resists moisture, oil, and typical industrial contaminants. Additionally, the stainless steel case shields against electromagnetic interference.