Bently Nevada 330101-00-08-15-02-05 Proximity Probe

Technical Overview

The Bently Nevada 330101-00-08-15-02-05 proximity probe delivers reliable shaft vibration and position measurements in critical turbomachinery. This 5 mm probe system operates with a standard -24 Vdc negative power supply and supports a linear range from 0.25 mm to 2.03 mm. Its tip diameter measures 8.1 mm, while the case diameter reaches 14.2 mm for secure mounting. The probe body extends to a total length of 80 mm, featuring an unthreaded length of 30.5 mm and a threaded length of 21.6 mm. Weighing approximately 90 grams, this sensor fits easily into existing machine train installations.

Performance and Environmental Specifications

This sensor maintains a temperature rating from -35°C to +177°C at the tip, with the extension cable rated up to +260°C. The system achieves a sensitivity of 7.87 mV/µm, ensuring precise data acquisition for predictive maintenance. Its frequency response ranges from 0 to 10 kHz, capturing both static and dynamic displacement signals. The probe includes a polyurethane jacketed cable, which resists oil, water, and abrasion in harsh industrial environments. Standard connectors simplify integration with Bently Nevada’s 3300 and 3500 monitoring systems.

Physical Dimensions and Installation Details

Parameter	Specification
Probe Tip Diameter	8.1 mm
Case Diameter	14.2 mm
Total Length	80 mm
Threaded Length	21.6 mm
Unthreaded Length	30.5 mm
Weight	Approx. 90 g
Cable Length	8.0 m (with connectors)
Temperature (Tip)	-35°C to +177°C
Temperature (Cable)	Up to +260°C
Sensitivity	7.87 mV/µm
Frequency Response	0 to 10 kHz
Linear Range	0.25 mm to 2.03 mm
Power Supply	-24 Vdc (negative)

Key Components and Connectivity

This proximity probe system includes the probe body, a 8.0 meter extension cable, and two coaxial connectors for straightforward field wiring. The integral connector at the probe end provides a weatherproof seal, while the terminal block at the driver side accepts standard 22 AWG wires. The system stores minimal internal energy, making it intrinsically safe for hazardous area classifications. Users can pair this probe with the Bently Nevada 3300 XL 8mm Proximity Transducer System for enhanced signal conditioning.

Application and Maintenance

Installing this probe requires only a 14 mm wrench and standard mounting brackets. The threaded case allows precise gap adjustment using the provided locking nut. Regular inspection of the cable jacket and connector pins ensures long-term reliability. This sensor excels in steam turbines, compressors, and pumps where consistent gap voltage monitoring prevents unplanned downtime. For optimal performance, calibrate the system against a known target material, such as AISI 4140 steel, to match the factory settings.