Description

Technical Overview

Product Description

The Bently Nevada 330710-000-050-02-00 is a high-precision, industrial-grade proximity probe engineered for continuous, non-contact vibration and position monitoring in critical rotating machinery. As part of the trusted 3300 XL 11 mm sensor family, this probe delivers exceptional linearity, thermal stability, and electromagnetic interference (EMI) immunity—essential for reliable operation in harsh plant environments such as power generation, oil & gas, and heavy manufacturing.

Key Benefits

• Extended Temperature Range: Operates reliably from –30 °C to +120 °C, minimizing drift and calibration frequency.
• High Signal-to-Noise Ratio: Optimized for integration with Bently Nevada 3300 XL 8 mm/11 mm monitors and 3500 system racks.
• Rugged Construction: Stainless steel housing with integral cable and hermetically sealed tip ensures long-term durability in corrosive, high-vibration, or high-pressure applications.
• IEC 61000-4 Compliance: Meets stringent EMC standards for industrial electromagnetic environments.

Typical Applications

This probe is widely deployed for shaft relative vibration monitoring, axial position (thrust) measurement, and differential expansion sensing on steam turbines, gas compressors, centrifugal pumps, and large electric motors. Its 11 mm diameter and 5 mm linear range make it ideal for medium-to-large bearing housings where robust signal integrity and mechanical clearance are paramount.

Detailed Specifications

Operational Capabilities

Dynamic Response & Bandwidth

Engineered for high-fidelity dynamic measurement, the 330710-000-050-02-00 supports a frequency response of DC to 10 kHz (–3 dB), enabling accurate capture of sub-synchronous whirl, blade pass frequencies, and transient fault signatures.

Environmental Resilience

With an IP67-rated housing and resistance to oil, steam, and chemical exposure, this probe maintains performance in demanding mechanical seal areas, gearbox sumps, and turbine casings—without requiring external shielding or purging systems.

System Integration Flexibility

Designed for seamless compatibility with Bently Nevada 3300 XL 8 mm/11 mm extension cables and 3500/20M monitors, it supports both single-channel and dual-channel (differential) configurations for redundancy-critical assets.

Technical FAQ

Can this probe be used with legacy 3300 series monitors?

Yes—the 330710-000-050-02-00 is fully backward-compatible with all 3300 series monitor systems (including 3300 16, 3300 22, and 3300 25), provided the correct 3300 XL extension cable (e.g., 330130-040-00-00) is used.

What is the recommended gap voltage setting?

The nominal output at mid-range (2.5 mm) is –10.0 VDC ±0.2 V. Final calibration should be performed per API 670 (4th ed.) guidelines using a certified calibrator and documented in the asset’s condition monitoring database.

Is field recalibration required after installation?

No—factory-calibrated probes retain traceable NIST-traceable calibration for the life of the sensor under normal operating conditions. Recalibration is only advised following mechanical damage, extreme thermal cycling beyond spec, or if diagnostic trending indicates drift >±2% full scale.

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