Bently Nevada 330141-08-50-02-00 Armored Proximity Sensor Probe

Product Overview

The Bently Nevada 330141-08-50-02-00 is a rugged 3300 XL 8 mm Proximity Probe designed for non-contact vibration and position measurements. Engineers use this eddy current transducer system on critical rotating machinery like turbines, compressors, and pumps.

This model features a 0.8-inch case length and flexible stainless steel armor. The internal polyphenylene sulfide tip encapsulation protects sensitive components from mechanical stress and harsh process fluids.

Integrated TipLoc molding and CableLoc construction deliver up to 330 N cable pull strength. The system ensures precise shaft displacement tracking in severe industrial environments.

Global PLC Spare HUB Insights & Field Experience

Our field reliability team evaluates proximity probes in demanding power generation and petrochemical applications. The Bently Nevada 3300 XL Series consistently demonstrates superior mechanical resilience compared to legacy designs.

During a recent gas turbine overhaul, technicians noticed severe cable fatigue on non-armored sensors due to high pipe vibration. Replacing them with the armored 330141-08-50-02-00 eliminated false vibration spikes completely.

The patented CableLoc design prevents cable pull-out when technicians work in tight bearing housings. This feature significantly reduces accidental sensor damage during routine maintenance overhauls.

Technical Specifications

• Brand: Bently Nevada
• Part Number: 330141-08-50-02-00
• Product Series: 3300 XL 8 mm System
• Probe Type: Proximity Probe with Armor
• Case Length: 0.8 inches (Unthreaded)
• Total Cable Length: 5.0 meters (16.4 feet)
• Connector Type: Miniature coaxial ClickLoc connector
• Cable Option: Standard cable with armor
• Linear Range: 2.0 mm (80 mils)
• Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ± 5%
• Direct Linear Deviation: Less than ±0.025 mm (±1 mil)
• Nominal Resistance: 8.73 ± 0.50 Ohms
• Tip Material: Polyphenylene sulfide (PPS)
• Case Material: AISI 303 or 304 Stainless Steel
• Operating Temperature: -52°C to +177°C (-62°F to +350°F)
• Agency Approvals: Option 00 (Not required)

System Compatibility

The 330141-08-50-02-00 probe requires matching system components for accurate measurement scale factors. Always pair this 5-meter probe directly with a 5-meter 3300 XL Proximitor Sensor.

Do not use extension cables with a 5-meter probe configuration. Using an extension cable alters the total electrical length, causing severe calibration error across the linear range.

Installation Guidance

• Verify the target material matches standard AISI 4140 steel calibration.
• Maintain a minimum probe tip clearance of 1.5 mm from surrounding metal walls.
• Mount the probe securely using proper torque to prevent mechanical loosening.
• Ensure the armor jacket terminates outside any severe bend radius zones.
• Clean coaxial connectors thoroughly before hand-tightening the ClickLoc mechanism.

Commissioning & Maintenance

Set the initial mechanical gap using a calibrated DC voltmeter connected to the Proximitor output. Adjust probe position until the gap voltage reaches approximately -9.0 VDC to achieve mid-scale positioning.

Inspect armor jackets periodically for physical crushing or excessive corrosion. Measure center-to-outer conductor DC resistance during turnarounds to verify the 8.73 Ohm baseline.

Typical Applications & Diagnostics

This proximity probe excels at shaft radial vibration monitoring, axial thrust position measurement, and keyphasor speed sensing. It provides vital raw signals for machinery protection systems like Bently Nevada 3500 racks.

Diagnostic capabilities include detecting rotor unbalance, shaft misalignment, journal bearing wear, and oil whirl instabilities before catastrophic equipment failure occurs.

Selection Guide

Select your 3300 XL Probe based on specific physical geometry and required overall electrical length:

• 330101: 8 mm probe, 3/8-24 UNF thread, unarmored.
• 330102: 8 mm probe, 3/8-24 UNF thread, armored.
• 330140: 8 mm probe, smooth case without armor.
• 330141: 8 mm probe, smooth case with protective armor.
• Length Selection: Choose 5.0m for direct connection without extension cables, or 1.0m when using standard 4.0m extension cables.

Shipping, Warranty, & Package List

We process and dispatch orders within 24 to 48 hours via express air couriers including FedEx, UPS, and DHL worldwide.

Every shipment includes a comprehensive 12-month warranty covering manufacturing defects under standard operating conditions.

Package List: 1 x Bently Nevada 330141-08-50-02-00 Proximity Probe with protective connector cap and documentation sheet.

Frequently Asked Questions

Q1: Can I connect this 5-meter probe to a 9-meter Proximitor sensor?

A1: No, matching system lengths is critical. A 5-meter probe must connect directly to a 5-meter Proximitor sensor to maintain accurate scale factors.

Q2: Why does this probe feature armor cable protection?

A2: The flexible stainless steel armor shields the inner cable from sharp conduit edges, hot surfaces, and mechanical impact in harsh plant areas.

Q3: What happens if ambient temperature drops below -34°C?

A3: Temperatures below -34°C (-30°F) do not stop probe operation, but they may cause premature failure of the internal Viton pressure seal.

Q4: How do I verify if the probe cable is damaged without specialized tools?

A4: Check resistance with a digital multimeter between the center and outer conductor. A normal reading for this 5-meter model is approximately 8.73 Ohms.

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