330191-40-75-10-00 3300 XL Probe 1m Bently Nevada

Product Overview

The Bently Nevada 330191-40-75-10-00 is an extended temperature range (ETR) 3300 XL 8 mm proximity probe designed for severe thermal machinery environments. Featuring 3/8-24 UNF threads and PFA-insulated triaxial cabling, this transducer operates reliably in ambient temperatures reaching +232 °C (+450 °F). It provides continuous eddy current displacement tracking for machinery protection systems without thermal drift or signal loss.

Engineers deploy the 330191-40-75-10-00 in applications requiring direct 1-meter probe connections without an extension cable. The patented TipLoc molding method secures the PPS plastic tip to the stainless steel body, while the CableLoc design withstands 330 N (75 lbf) pull force. This rugged structural design protects transducer integrity under high mechanical stress and fluid pressure exposure.

Key Features and Benefits

• Extended Thermal Range: Handles ambient probe head temperatures from -55 °C up to +232 °C (-67 °F to +450 °F).
• Direct 1-Meter Design: Eliminates extension cable connectors, forming a complete 1-meter direct Proximitor link.
• Patented CableLoc Sealing: Delivers 330 N (75 lbf) cable pull strength to prevent mechanical separation.
• High-Strength TipLoc Molding: Bonds the polyphenylene sulfide (PPS) coil tip securely to the stainless steel housing.
• Rugged Triaxial Cabling: Utilizes 75 Ω PFA-insulated triaxial cable for maximum flexibility and chemical immunity.
• Pressure Sealing: Viton O-ring seals prevent fluid bypass between the probe tip and threaded body interface.

Configuration Breakdown & Model Suffix Tree

Understanding the complete part specification for the Bently Nevada 330191-40-75-10-00 ensures correct mechanical fitting:

• Model: 330191 — 3300 XL 8 mm Extended Temperature Range (ETR) Probe, 3/8-24 UNF Thread, Without Armor
  • Unthreaded Length Option (-40): 4.0 Inches (101.6 mm) Unthreaded Case Length
    • Overall Case Length Option (-75): 7.5 Inches (190.5 mm) Total Threaded & Unthreaded Body
      • Total Length Option (-10): 1.0 Meter (3.3 feet) Integrated Cable Assembly
        • Agency Approval Option (-00): Standard Non-Approved / Approvals Not Required

Technical Specifications

Complete mechanical and electrical parameters for the Bently Nevada 330191-40-75-10-00 appear below:

Target Equipment and Application Scenarios

• High-temperature steam turbine casing installations with severe internal cavity heating.
• Gas turbine exhaust frame bearing housings requiring elevated thermal tolerance up to +232 °C.
• Hot gas expander shaft displacement tracking in petrochemical refining facilities.
• Boiler feed pump thrust position sensing where high ambient steam exposure occurs.

Diagnostic Capabilities and Cable Testing

The Bently Nevada 330191-40-75-10-00 works alongside matching 3300 XL Proximitor sensors to deliver continuous loop diagnostics. Measuring DC resistance between the center conductor and outer conductor provides instant physical health feedback (nominal 7.59 Ω ± 0.50 Ω for 1-meter models). Deviations signal cable pinching, moisture ingress, or open-circuit conditions before false vibration trips affect machine operation.

Global PLC Spare HUB's Insight & Field Experience

When installing this 1-meter direct probe model, remember that 1-meter systems do not use an extension cable. Connecting a 1-meter probe directly to an extension cable shifts total electrical system length out of calibration, resulting in scale factor errors on the Proximitor output.

Torque the SMA miniature coax connector carefully during commissioning. Never exceed the maximum rated torque limit of 0.565 N·m (5 in·lbf). Over-tightening deforms the gold-plated pin contact, causing intermittent high-frequency noise spikes on vibration trend charts.

Compliance, Shipping, and Warranty Terms

• Package Contents: 1 x New factory-sealed Bently Nevada 330191-40-75-10-00 3300 XL ETR probe in original protective packing.
• Warranty Coverage: Backed by a full 12-month factory replacement warranty starting from the invoice dispatch date.
• Express Global Courier: Ships within 24-48 hours via premium express services including FedEx, UPS, and DHL.

Frequently Asked Questions (FAQ)

Question: What is the main operational advantage of choosing an ETR series probe over standard models?

Answer: ETR models feature PFA-insulated cabling rated for extended temperatures up to +232 °C (+450 °F), preventing insulation breakdown inside hot machine housings.

Question: Can I connect a standard 3300 XL extension cable to this 1-meter probe assembly?

Answer: No, 1-meter system probes plug directly into a dedicated 1-meter Proximitor sensor without using an extension cable.

Question: What electrical resistance value verifies that the probe winding is healthy during static checks?

Answer: Measuring center conductor to outer conductor DC resistance should yield a nominal reading of 7.59 Ω ± 0.50 Ω at room temperature.

Question: How does the TipLoc design improve transducer durability inside turbulent housings?

Answer: The patented TipLoc molding mechanically locks the PPS tip onto the stainless steel body, preventing tip separation under high differential pressure or oil flow turbulence.

Question: What thread torque tool setting prevents damage to the connector plug during installation?

Answer: Use a calibrated miniature torque wrench set to a maximum limit of 0.565 N·m (5 in·lbf) when securing the coaxial connector plug.

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