Product Overview

The Bently Nevada 330101‑00‑28‑20‑12‑05 proximity probe delivers precise, non‑contact shaft displacement measurement for rotating machinery protection and condition monitoring. Engineered for seamless integration into the 3300 XL monitoring platform, it provides stable, high‑resolution data for radial vibration, thrust position, and eccentricity analysis. Its rugged construction withstands extreme temperatures, high vibration, and corrosive atmospheres common in power generation, oil & gas, and heavy industrial plants. By capturing minute positional changes with exceptional repeatability, the probe enables early detection of mechanical faults, supporting proactive maintenance strategies that safeguard critical assets and minimize unplanned downtime.

Model Suffix Interpretation

330101 identifies the 3300 XL 8 mm probe series with standard sensitivity and connector style. 00 specifies the probe case configuration and material for general industrial use. 28 defines the cable length of 2.8 meters, optimized for medium‑scale machine installations. 20 indicates the connector type and mounting thread specification compatible with Bently Nevada housings. 12 refers to the agency approvals and hazardous area certifications. 05 denotes the packaging and calibration option.

Technical Specifications

Mounting & Wiring Guidance

Install the probe perpendicular to the target shaft surface, maintaining the specified gap voltage for optimal linearity. Secure the probe housing firmly to prevent movement caused by vibration or thermal expansion. Route the coaxial cable away from high‑voltage conductors to minimize electromagnetic interference. Use only Bently Nevada‑approved extension cables and connectors to preserve signal integrity. Verify the gap voltage and linear range with a calibrated driver before final system commissioning.

Engineering Advantages

The 330101‑00‑28‑20‑12‑05 performs reliably in extreme environments, including steam turbines, gas compressors, and offshore platforms. Its corrosion‑resistant materials and sealed connectors ensure long‑term stability despite exposure to moisture, oil, and chemicals. Full compatibility with Bently Nevada TSI systems allows synchronized monitoring across entire machinery trains. The probe’s high signal‑to‑noise ratio supports advanced diagnostics such as phase analysis and orbital plotting, enabling engineers to detect subtle mechanical changes before they escalate into failures.

Ordering Info

(1) Bently Nevada 330101‑00‑28‑20‑12‑05 Proximity Probe – Original Factory Sealed

(2) Mounting Hardware Kit

(3) Calibration Certificate Traceable to NIST Standards

(4) Anti‑static industrial packaging

Shipping & Handling

Orders ship within 3–5 days after payment clearance via DHL, FedEx, or UPS. Each probe is encased in anti‑static, impact‑resistant packaging to prevent electrostatic discharge and physical damage during transit. Tracking details are provided immediately upon dispatch for complete supply chain visibility.

Technical FAQs

Q1: Can this probe be used with non‑Bently Nevada monitoring systems?

A1: Yes, provided the system supports the probe’s sensitivity and excitation voltage requirements.

Q2: What is the recommended gap voltage for commissioning?

A2: Maintain approximately –9.75 V DC for optimal linearity within the 2 mm range.

Q3: Is the probe suitable for high‑temperature turbine applications?

A3: Yes, its operating range extends to +177 °C, making it ideal for turbine shaft monitoring.

Q4: How often should recalibration be performed?

A4: Recalibration every 12 months is recommended for critical machinery to ensure measurement accuracy.