330702-00-26-50-12-00 Premium Bently Nevada 11mm Proximity Sensor Probe

Product Overview

The Bently Nevada 330702-00-26-50-12-00 belongs to the high-performance 3300 XL 11 mm Proximity Probes series.

This premium eddy current transducer measures static and dynamic distance variations between the target and probe tip.

Machinery protection systems utilize this specific hardware to monitor critical shaft vibration parameters on heavy rotary machinery.

The ruggedized structural design enables stable displacement tracking inside aggressive industrial environments without signal deterioration.

Configuration Breakdown

• Base Model: 330702 — 3300 XL 11 mm Probe, 1/2-20 UNF thread with protective armor framework.
• Unthreaded Length: 00 — Features 0.0 inches of unthreaded housing sleeve section.
• Overall Case Length: 26 — Measures exactly 2.6 inches of overall threaded casing length.
• Total Length Option: 50 — Specifies a 5.0-meter (16.4 feet) total structural cable extension length.
• Connector & Cable Type: 12 — Includes a miniature coaxial ClickLoc connector and a FluidLoc block cable.
• Agency Approval: 00 — No hazardous area agency certifications required for this specific deployment.

Technical Specifications

• Core Identification: Manufactured by Bently Nevada. The complete part identification code is 330702-00-26-50-12-00.
• Sensor Tip Diameter: Designed with an 11 mm diameter probe tip made from high-grade Polyphenylene sulfide.
• Casing Construction: Built using AISI 304 stainless steel for robust resistance against corrosion forces.
• Electrical Resistance: Features a center-to-outer conductor DC resistance rating of 7.2 ohms plus or minus 0.8 ohms.
• Cable Characteristics: Equipped with a 75-ohm triaxial cable core jacketed in Fluoroethylene Propylene insulation shielding.
• Physical Limits: Requires a minimum structural cable bend radius of 25.4 mm (1.0 inch).
• Mechanical Torque Limits: Recommended case torque equals 15.2 N•m. The maximum rated mounting limit hits 45.2 N•m.
• Thermal Operating Span: Standard operation boundaries withstand extreme temperatures from -52°C up to +177°C safely.
• Pressure Containment: Includes a Viton O-ring seal configuration designed to handle mechanical differential pressure boundaries.

Installation Guide

First, clear the target machine surface and verify mounting hole thread dimensions match 1/2-20 UNF requirements.

Thread the 330702-00-26-50-12-00 case manually into the machine housing layout until the tip nears the target shaft.

Set the mechanical gap distance precisely by monitoring the DC voltage output across the Proximitor loop network.

Apply the recommended mounting torque of 15.2 N•m using a calibrated torque wrench tool on the case body.

Join the ClickLoc coaxial connector to the extension cable leads using secure finger-tight pressure adjustments.

Route the armored cable framework through protective conduit lines ensuring the bend radius exceeds 25.4 mm.

Debugging and Maintenance Convenience

The specialized ClickLoc interface enables seamless connection cycles without requiring specialized calibration tools on-site.

Maintenance teams evaluate probe health instantly by verifying the loop resistance across the triaxial signal conductors.

The integrated FluidLoc cable filling acts as a barrier to block moisture migration through cable voids.

The smooth 304 stainless steel case simplifies cleaning routines during standard plant maintenance intervals.

Compatibility Notes

This 5.0-meter total length probe couples exclusively with a matching 5-meter 3300 XL Proximitor sensor unit.

The miniature coaxial connector mates seamlessly with standard Bently Nevada extension cable assemblies.

The electrical output values scale perfectly into standard 3500 series machinery protection rack monitoring modules.

Packing List and Warranty Terms

The shipping box delivers 1 original Bently Nevada 330702-00-26-50-12-00 proximity probe mechanism.

The item includes an integrated stainless steel armor sheath and a factory-installed Viton seal unit.

We provide a rock-solid 12-month commercial warranty that covers all functional performance parameters completely.

The warranty guarantees immediate replacement processing if any manufacturing material failure occurs within the year.

Shipping Logistics

Our dispatch teams process and pack verified orders within a fast 24 to 48-hour window.

We provide expedited global shipping services utilizing trusted premium express carriers including FedEx, UPS, and DHL.

Customers track active shipping routes via automated notifications sent right after warehouse departure routines finish.

Typical Application Scenarios

Power plants deploy this probe to track absolute oil film clearance inside high-speed steam turbine bearings.

Petrochemical processing installations use the sensor to measure axial thrust displacement on multi-stage compressor rotors.

Mining operations mount this armored assembly onto large grinding mills to monitor structural journal bearing wear.

Diagnostic Capabilities

The host Proximitor sensor reads the probe DC resistance continuously to identify open loop faults.

The system identifies mechanical gap errors instantly if the output voltage limits cross preset monitoring thresholds.

The instrumentation alerts technicians about short circuits if the center conductor contacts the outer shielding jacket.

Global PLC Spare HUB's Insight

The Bently Nevada 330702-00-26-50-12-00 represents a highly customized variation within the classic 11 mm family.

The FluidLoc cable structure makes this specific item perfect for environments plagued by oil and mist migration.

Its 5.0-meter configuration simplifies loop layouts by removing the need for a separate intermediate extension cable asset.

This rugged design fits heavy industrial gearboxes, gas turbines, large pumps, and turbo-expanders perfectly.

Cross-Model Comparison and Selection Advice

Review the primary engineering differences below before choosing your final monitoring hardware configuration:

• Current Model: 330702-00-26-50-12-00 features a 2.6-inch case length, a 5.0-meter total length, and an armored FluidLoc cable lead.
• Alternative Model: The 330702-00-10-90-02-00 variant provides a 1.0-inch case length, a 9.0-meter total length, and a standard armored coaxial cable.

Technical Recommendation: Match the probe system length to your Proximitor specification precisely. Do not mix 5.0-meter probes with 9.0-meter Proximitor components, as this mismatch destroys the linear calibration envelope entirely. Choose the FluidLoc cable choice if your sensor tip works directly submerged in pressurized lubricating fluids.

Frequently Asked Questions (FAQ)

Question: Can I run a 5.0-meter probe together with a 9-meter Proximitor sensor unit?

Answer: No, matching a 5-meter probe with a 9-meter sensor causes heavy measurement errors and breaks system linearity.

Question: What unique operational advantage does the specialized FluidLoc cable choice offer the user?

Answer: The internal structural filling stops process fluids from wicking through the cable jacket if the seal fails.

Question: How does dropping environmental temperatures below -34°C impact the performance of this probe?

Answer: Sub-zero exposure beneath -34°C makes the Viton O-ring rigid, which can cause pressure seal failures.

Question: What is the recommended case tightening torque value for installing this 1/2-20 thread body?

Answer: Installers should apply a recommended torque of 15.2 N•m to ensure stable thread engagement without casing distortion.

Question: Does this proximity probe configuration carry hazardous location agency approvals like ATEX or IECEx?

Answer: No, the 00 approval suffix designates that this hardware option does not include special agency certifications.

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