Bently Nevada 330905-00-19-10-02-CN Ruggedized Proximity Probe

Product Overview

Bently Nevada 330905-00-19-10-02-CN Ruggedized Proximity Probe for Harsh Industrial Environments

The Bently Nevada 330905-00-19-10-02-CN is an 8 mm eddy current proximity probe engineered for continuous, non-contact vibration and position measurement in the most demanding rotating-machinery applications. Designed as a core component of the Bently Nevada 3300 NSv monitoring system, this probe delivers micron-level displacement resolution even when exposed to high temperatures, aggressive lubricants, strong electromagnetic fields, and the relentless mechanical vibration found on turbines, compressors, pumps, and motors in critical infrastructure facilities worldwide.

Unlike optical or contact-based sensors, the eddy current technology embedded in the 330905-00-19-10-02-CN requires no physical contact with the rotating shaft, eliminating wear and enabling continuous 24/7 operation without scheduled sensor replacement. The 5-metre integral cable assembly is factory-terminated and environmentally sealed, maintaining signal integrity across the full operating temperature range and resisting ingress from steam, hydraulic fluid, and fine metallic particulate common in turbomachinery enclosures.

In oil refineries and petrochemical plants where unplanned downtime can cost hundreds of thousands of dollars per hour, the 330905-00-19-10-02-CN is routinely installed on centrifugal compressor trains alongside the Bently Nevada 3300 XL 8 mm Extension Cable and the Bently Nevada 3300 XL Proximitor Sensor to form a complete proximity measurement chain. The Proximitor converts the probe’s raw impedance signal into a calibrated voltage output — typically −4 VDC per mil or −0.1969 VDC per micrometre — that feeds directly into the Bently Nevada 3500/42M Proximitor Monitor or the 3500/40M Proximitor/Seismic Monitor for real-time shaft vibration and eccentricity alarming.

In power generation facilities, this probe is frequently paired with the Bently Nevada 3500/22M Transient Data Interface to capture high-speed transient events during turbine start-up and coast-down, providing the vibration data engineers need to detect rotor bow, critical speed crossings, and bearing instability before they escalate into catastrophic failures. The probe’s non-contacting design makes it equally suitable for axial position measurement on thrust bearings, where it works in conjunction with the Bently Nevada 3500/25 Keyphasor Module to deliver phase-referenced vibration analysis.

Mining and mineral-processing operations subject rotating equipment to extreme dust loading, high ambient temperatures, and continuous shock loads. The 330905-00-19-10-02-CN’s robust stainless-steel housing and chemically resistant cable jacket maintain measurement accuracy in these environments, supporting integration with plant-wide DCS platforms via the Bently Nevada System 1 Condition Monitoring Software. When combined with the Bently Nevada 3500/92 Communication Gateway Module, vibration data can be transmitted over Modbus, Profibus, or OPC-DA/UA to SCADA and historian systems without additional signal conditioning hardware.

Water treatment and wastewater facilities operating large vertical turbine pumps and blower trains rely on proximity probes to detect shaft runout and bearing wear long before audible noise or elevated temperature provides any warning. The 330905-00-19-10-02-CN installs directly into standard API 670-compliant probe holders, ensuring drop-in compatibility with existing monitor racks and eliminating the need for custom machining or adapter hardware during emergency replacement scenarios.

Steel mills and aluminium smelters present some of the harshest electromagnetic environments in industry, with high-current bus bars, large variable-frequency drives, and arc furnaces generating broadband EMI that can corrupt sensor signals. The shielded coaxial construction of the 330905-00-19-10-02-CN’s cable assembly provides effective rejection of common-mode interference, preserving measurement fidelity even when routed alongside power cables in congested cable trays. This makes it a preferred replacement part for maintenance teams managing aging monitor systems where probe degradation — rather than machinery fault — is the root cause of nuisance alarms.

Rugged Specifications Table

Comprehensive Protection Solutions

Reliable shaft monitoring is never a single-component decision. The 330905-00-19-10-02-CN is designed to operate as part of a fully integrated protection chain. In a typical turbomachinery installation, the probe connects through the Bently Nevada 3300 XL Extension Cable (330130-080-00-00) to the Bently Nevada 3300 XL Proximitor Sensor (330180-X1-05), which conditions the signal before it reaches the Bently Nevada 3500/42M Proximitor Monitor housed in a 3500 Rack. The rack’s 3500/20 Rack Interface Module manages power distribution and communication, while the 3500/15 Power Supply Module ensures clean, regulated DC power even during grid disturbances — a critical requirement in facilities where power quality is compromised by large motor starts or capacitor bank switching.

For facilities requiring SIL-rated overspeed protection, the 330905-00-19-10-02-CN is often installed alongside the Bently Nevada 3500/53 Overspeed Detection Module, providing a complementary layer of mechanical protection that satisfies IEC 61511 functional safety requirements. Communication to the plant DCS is handled by the Bently Nevada 3500/92 Communication Gateway, enabling seamless data exchange with Emerson DeltaV, Honeywell Experion, ABB 800xA, or Siemens PCS 7 platforms without proprietary middleware.

Application in Critical Infrastructure

In oil and gas upstream and midstream facilities, the 330905-00-19-10-02-CN is a standard fitment on gas turbine-driven compressor trains operating on offshore platforms and onshore gas processing plants. The probe’s ability to function continuously at shaft surface temperatures exceeding 150 °C, combined with its resistance to hydrocarbon condensate and H₂S-laden atmospheres, makes it the preferred choice for operators who cannot afford sensor-induced false trips on critical production equipment.

In coal-fired and combined-cycle power plants, this probe monitors the radial vibration of steam turbine journal bearings, providing the early-warning data that allows maintenance teams to schedule bearing inspections during planned outages rather than responding to emergency shutdowns. Paired with the Bently Nevada System 1 software platform, vibration trend data from the 330905-00-19-10-02-CN feeds predictive maintenance algorithms that correlate shaft displacement with bearing temperature, lube oil pressure, and load to generate actionable maintenance recommendations.

In mining and mineral processing, large SAG mill pinion bearings, crusher main shafts, and slurry pump impellers are monitored using this probe series. The sealed cable construction withstands the abrasive slurry splash and high-pressure wash-down cycles common in concentrator buildings, while the stainless-steel probe body resists corrosion from acidic process water.

In metallurgical and steel-making facilities, the probe is installed on rolling mill main drive motors and continuous caster pinch roll drives, where it detects shaft eccentricity caused by thermal growth and bearing wear — conditions that, if undetected, lead to strip breakage, cobble events, and costly production interruptions.

Security & Quality FAQ

Q1: What does the 12-month warranty cover for the 330905-00-19-10-02-CN?
The 12-month warranty covers all manufacturing defects, functional failures, and calibration drift attributable to the product itself. If the probe fails to meet Bently Nevada’s published sensitivity and linearity specifications within 12 months of the invoice date under normal operating conditions, TOPNLMS will arrange replacement or full refund. Warranty claims are processed within 5 business days of receiving the returned unit.

Q2: How is each unit tested before shipment?
Every 330905-00-19-10-02-CN unit in our inventory undergoes pre-shipment functional verification: impedance measurement at the probe tip, cable continuity and insulation resistance check, and visual inspection of the connector and cable jacket. Units that do not pass all checks are quarantined and not offered for sale. A test report is available upon request for critical-application orders.

Q3: Is this probe compatible with my existing 3500 Series monitor rack?
Yes. The 330905-00-19-10-02-CN is fully compatible with all Bently Nevada 3500 Series monitor modules that accept 3300 NSv proximity transducer inputs, including the 3500/40M, 3500/42M, and 3500/45 Position Monitor. It is also backward-compatible with legacy 3300 Series racks. If you are unsure about compatibility with a specific rack configuration, contact our technical team with your monitor part number and we will confirm before you order.

Q4: Can TOPNLMS support long-term or repeat supply of this part?
Yes. TOPNLMS maintains standing inventory of the 330905-00-19-10-02-CN and related 3300 NSv system components to support both emergency replacement and planned maintenance programs. We can provide blanket purchase order arrangements, consignment stock agreements, and advance shipment notification for customers with scheduled outage windows. Contact our team to discuss a supply agreement tailored to your maintenance cycle.