Description

Technical Overview

The Bently Nevada 330902-00-25-10-02-05 (also known as the 3300 NSv Probe) is a high-precision, non-contact eddy-current proximity probe engineered for critical machinery protection and condition monitoring in demanding industrial environments. As part of Bently Nevada’s trusted 3300 Series vibration monitoring system — a global standard in turbomachinery health management — this probe delivers exceptional linearity, temperature stability, and long-term reliability. Designed specifically for use with the 3300 XL 8 mm sensor system, the 330902-00-25-10-02-05 features a robust stainless steel housing, integral 25 ft (7.62 m) low-noise coaxial cable, and a 10–32 UNF threaded mounting configuration. It excels in measuring dynamic shaft vibration, axial position, and differential expansion in steam turbines, gas compressors, centrifugal pumps, and other rotating equipment where uptime, safety, and predictive maintenance are paramount.

Key Features

• High-Fidelity Eddy-Current Sensing: Optimized for 8 mm diameter targets with ±1% linearity across its full measurement range (0–25.4 mm / 0–1.0 in).
• Integrated Low-Noise Cable: 25-foot (7.62 m) shielded, low-capacitance coaxial cable minimizes signal degradation and electromagnetic interference (EMI), ensuring clean, accurate output even in electrically noisy plants.
• Rugged Industrial Construction: Hermetically sealed 316 stainless steel probe body with PTFE-insulated coil; rated for continuous operation from –40°C to +125°C ambient.
• Direct Compatibility: Fully interoperable with 3300 XL 8 mm extension cables, proximitor modules (e.g., 3300/16, 3300/25), and System 1™ software for seamless integration into existing Bently Nevada ecosystems.
• IEC 61508 SIL 2 Capable: Certified for use in safety-related applications when deployed within compliant system architectures — supporting functional safety requirements per API RP 1174 and ISO 13373.
• Zero-Drift Calibration: Factory-calibrated to meet ASTM E1311 and ISO 10816 standards, with traceable NIST documentation included.

Specifications

• Probe Type: Non-contact eddy-current proximity probe (NSv series)
• Probe Diameter: 8 mm
• Measurement Range: 0–25.4 mm (0–1.0 in)
• Linear Output Range: 0–10 V dc (standard), proportional to gap change
• Cable Length: 25 ft (7.62 m), integral, low-noise coaxial
• Mounting Thread: 10–32 UNF–2A (standard probe tip thread)
• Operating Temperature: –40°C to +125°C (probe body); –50°C to +125°C (cable)
• Environmental Rating: IP68 (when properly mated and sealed)
• Material: 316 stainless steel body; gold-plated connector interface
• Compliance: CE, UKCA, RoHS, ATEX II 2G Ex db IIC T4 Gb (optional variant available)
• Calibration: Performed at 2.54 mm (0.1 in) nominal gap; includes NIST-traceable certificate

Whether you’re upgrading legacy monitoring systems or commissioning new critical assets, the Bently Nevada 330902-00-25-10-02-05 ensures unmatched signal integrity, repeatability, and compliance with global machinery protection standards. Trusted by OEMs, power utilities, oil & gas operators, and industrial plants worldwide, it’s the intelligent choice for safeguarding rotating equipment performance — today and for decades to come.