Product Overview

The Bently Nevada 330104-00-10-20-02-05 represents the peak of eddy current sensing technology, specifically engineered for the 3300 XL proximity transducer system. This 8 mm probe serves as a critical component in Turbine Supervisory Instrumentation (TSI), delivering high-resolution, non-contact displacement data for rotating machinery. It excels in monitoring radial vibration, axial thrust, and phase reference on high-speed turbines, compressors, and motors.

By providing a linear, stable signal even in the most aggressive industrial environments, this probe ensures that your machinery protection system receives the high-fidelity data required for early fault detection. Its robust design minimizes signal drift and temperature effects, directly enhancing the reliability of DCS platforms like Honeywell Experion PKS and ensuring safe operation through automated emergency shutdown protocols.

Model Geometry and Suffix Analysis

The specific alphanumeric configuration of the 330104 series determines the mechanical fit and electrical properties required for your bearing housing.

Unthreaded Length (00)

The "00" designation indicates a 0.0-inch unthreaded length. The probe body features a full-thread design, providing maximum adjustability and structural stability when secured within the mounting bracket.

Overall Case Length (10)

A "10" suffix specifies a 1.0-inch total case length. This compact, standard-length housing is optimized for high-stiffness installations where mounting space is carefully managed.

Total Length (20)

This indicates a 2.0-meter (approximately 6.6 feet) total cable length. Engineers must ensure this length, when combined with the extension cable, matches the system's total electrical length (typically 5 or 9 meters) to maintain proper calibration.

Connector and Armor (02-05)

The "02" signifies a miniature coaxial connector with a stainless steel nut, while the "05" provides stainless steel armor with connector protectors. The armor shields the coaxial lead from mechanical abrasion and crushing, while the protectors seal the connection against oil and moisture.

Technical Specifications

Mechanical Commissioning Guide

Achieving optimal system linearity requires precise gap voltage calibration. Technicians should utilize a digital multimeter to set the "Gap" at approximately -10.0 VDC (the midpoint of the 3300 XL linear range) when measuring against an AISI 4140 steel target. Ensure the probe tip is perpendicular to the shaft surface to prevent side-viewing or crosstalk interference from nearby metal components.

Observe strict cable management protocols. The stainless steel armor (Suffix 05) provides mechanical defense, but the internal coaxial cable still requires a minimum bend radius of 25.4 mm (1.0 inch). Always secure the Click-Loc connector until it clicks into place and slide the connector protectors into position to form a hermetic seal against synthetic lubricants and high-velocity oil spray.

Asset Reliability Advantages

The 330104 series thrives in the high-temperature and chemically aggressive environments found in petrochemical and power generation facilities. Its Gold-plated Click-Loc connectors and FEP-insulated leads resist corrosion and signal degradation over decades of service. This longevity, coupled with seamless integration into Bently Nevada 3500 series racks, provides the predictive diagnostic capabilities necessary to extend the Mean Time Between Failures (MTBF) of critical plant assets.

Ordering info

(1) Bently Nevada 330104-00-10-20-02-05 8mm Proximity Probe.

(2) Integrated 2.0m Armored Coaxial Cable.

(3) Fluorosilicone connector protectors (pre-installed).

(4) Manufacturer calibration compliance report and installation sheet.

Shipment and Industrial Logistics

We ensure rapid fulfillment with a delivery time of 3-5 days when payment finish. Every unit undergoes a final quality inspection before being placed into anti-static industrial packaging to prevent ESD damage. We facilitate global delivery via DHL, FEDEX, and UPS, utilizing reinforced, vacuum-sealed outer cartons to guarantee the hardware arrives in factory-sealed, "Original Pack" condition regardless of the destination.

Machinery Health FAQs

Q1: Why is the "05" armor option critical for this probe?

A1: The stainless steel armor prevents the coaxial cable from being accidentally crushed or cut during maintenance activities, which is the most common cause of sensor failure in bearing housings.

Q2: Can I use this 2.0m probe with a 5m total length Proximitor?

A2: Yes, provided you pair it with a 3.0m extension cable. The probe and extension cable lengths must sum to the total electrical length for which the Proximitor is calibrated.

Q3: What is the significance of the "00" unthreaded length?

A3: It means the entire 1.0-inch case is threaded, allowing the probe to be screwed entirely into a mounting hole for a flush or recessed installation profile.

Q4: Does this probe require special calibration for different shaft materials?

A4: The 3300 XL system is standard-calibrated for AISI 4140 steel. If your target is stainless steel or aluminum, a custom scale factor or proximitor adjustment will be necessary to maintain accuracy.