Product Overview

The Bently Nevada 330104-00-16-10-02-05 3300 XL 8 mm Proximity Probe delivers continuous, high-precision shaft displacement metrics for critical rotating machinery infrastructure. Operating on eddy current measurement principles, this industrial sensor measures dynamic oil-film bearing clearances, shaft vibration, and axial position. It provides a vital hardware safety layer that interfaces directly with Bently Nevada 3500 protection racks, emergency shutdown loops (ESD), and major plant distributed control systems (DCS). Engineered with global hazardous area certifications, this probe safeguards high-capital assets like steam turbines, boiler feed pumps, and gas compressors under severe processing conditions, suppressing catastrophic failures before they manifest.

Part Number Selection and Option Logic

330104 Thread and Armor Configuration

The model designation indicates an 8 mm proximity probe body equipped with a standard M10 x 1 metric thread. It includes integrated flexible stainless steel armor to shield the internal coaxial cable from hot oil submersion, mechanical friction, and fly debris within the machine enclosure.

00 Unthreaded Length Suffix

The 00 option code indicates a 0 mm unthreaded length option based on the initial configuration, which is optimized here for a continuous 16 mm unthreaded segment according to physical parameters. This structural design lets engineers thread the probe entirely into a custom bracket or thin-walled housing.

16 Overall Case Length Variable

The 16 suffix designates a 100 mm overall case length. This parameter provides a compact rigid barrel profile, allowing optimal physical reach into localized bearing housings without flexing or generating parasitic housing resonances under high-frequency operation.

10 Total Cable Length Allocation

The 10 option code establishes a calibrated 1.0-meter (3.3 feet) integrated cable length. This precise dimension guarantees perfect electrical matching with standard proximitor sensor inputs, keeping signal velocity uniform and preventing phase reference errors.

02 Connectivity and Interface Selection

The 02 option implements a miniature coaxial ClickLoc connector with standard cabling. This connection mechanism locks the physical cable interface together, maintaining continuous shielding integrity and preventing accidental disconnects caused by continuous machinery vibration.

05 Hazardous Area Certification Matrix

The 05 suffix adds a comprehensive international agency approval package, including CSA, ATEX, and IECEx certifications. This options architecture allows direct installation within hazardous, explosive atmospheres and intrinsically safe zones.

Technical Matrix and Logistics Parameters

Mechanical Position Calibration and Field Guidance

To secure stable, non-attenuated signal returns, technicians must calibrate the sensor's physical position before operation. Mount the probe into the bearing housing boss, adjusting the case depth until the DC gap voltage at the Proximitor sensor output measures exactly -10.00 VDC. This reading indicates the target shaft is perfectly centered within the linear window of the 3300 XL sensor calibration profile.

Verify this target gap voltage using a high-impedance digital voltmeter before tightening the external locknut. The minimum installation bend radius for the armored cable assembly must never drop below 25.4 mm (1.0 inch) to prevent kinking the internal coaxial dielectric material.

Route the field wiring conduit away from variable frequency drives (VFDs) and high-current AC lines, grounding the cable shield strictly at the 3500 monitoring rack backplane to avoid ground loops.

Critical Infrastructure Engineering Advantages

Comprehensive Intrinsically Safe Integrity

The multi-agency 05 configuration carries ATEX, IECEx, and CSA hazardous zone ratings, ensuring the sensor housing operates safely within explosive vapor and combustible dust zones. The electrical design prevents spark generation or energy discharge when coupled with approved barrier blocks.

Seamless Turbine Supervisory Instrumentation Integration

The transducer integrates directly with Turbine Supervisory Instrumentation (TSI) setups, translating physical displacement into normalized electrical registers. This provides immediate, plug-and-play synchronization with Honeywell Experion PKS, Siemens S7, and other plant DCS environments without requiring mid-tier interpolation blocks or firmware recalculations.

Shipping Manifest

Your order package contains the following instrumentation items:

(1) New Bently Nevada 330104-00-16-10-02-05 3300 XL 8 mm Proximity Probe featuring integrated flexible stainless steel armor.

(2) Pre-terminated miniature coaxial ClickLoc connector socket.

(3) Dedicated hex locknut for mechanical vibration locking.

(4) Factory-issued inspection documentation certifying structural dimensions and electrical baseline calibration profiles.

Express Dispatch and Packing Controls

This product features a 2-7 days dispatch schedule following payment finish. All international shipments route through premier express services like DHL, FedEx, and UPS to guarantee fast transport times and continuous end-to-end tracking visibility.

The physical hardware is enclosed in anti-static industrial packaging complete with custom moisture-barrier seals and high-density foam structures, ensuring your critical instruments remain protected from mechanical shocks and static accumulation during air freight transport.

Instrumentation and Field Engineering FAQs

Q1: What does the 05 suffix approval mean for field maintenance in hazardous zones?

A1: The 05 code certifies the probe for ATEX, IECEx, and CSA intrinsically safe and non-incendive zones. When combined with a matching Proximitor sensor and an approved galvanic isolation barrier, this construction limits fault energy levels to prevent ignition in explosive gas or dust environments, satisfying standard plant safety requirements for classified locations.

Q2: Why is the shipping dimension length profile listed at 113 cm for a 1-meter probe?

A2: The 113 cm dimension represents the specialized, elongated layout box needed to ship the calibrated 1.0-meter armored cable without exceeding its minimum storage bend radius. Bending the armored shield too tightly during shipping or warehouse handling strains the inner coaxial core, causing impedance mismatches and scale factor degradation.

Q3: How do I identify if the probe has suffered a short circuit or structural coil failure?

A3: Disconnect the ClickLoc connector and measure the resistance between the center pin and the outer shield with a digital multimeter. A standard, intact 3300 XL 8 mm probe displays a stable resistance reading between 5.0 and 11.0 ohms. An open loop reading or a value approaching 0 ohms indicates a broken internal coil or internal ground fault, requiring immediate component replacement.