Bently Nevada 330191-40-75-50-CN 3300 XL Proximity Probe — Industrial Sensor

Introduction

The 330191-40-75-50-CN proximity probe by Bently Nevada provides precise, reliable shaft displacement sensing for industrial machinery in demanding environments.

Key Features

• Model: 330191-40-75-50-CN from the 3300 XL series, optimized for 5-meter proximity systems.
• Durability: 8 mm PPS probe tip ensures superior impact and chemical resistance.
• Sealing: Viton® O-ring seals pressure between probe tip and case.
• Pull Strength: CableLoc design supports up to 330 N (75 lbf) tensile strength.
• Optional FluidLoc: Prevents oil or liquid leakage through cable interiors.

Technical Specifications — Core

• Brand & Model: Bently Nevada 330191-40-75-50-CN, part of the 3300 XL Proximity Probe series.
• Probe Type: 8 mm ETR proximity probe with 3/8-24 UNF thread, unarmored.
• Power Requirement: -17.5 Vdc to -26 Vdc at 12 mA max, -23 Vdc to -26 Vdc with barriers.
• Sensitivity: Less than 2 mV change per volt input change.
• Output Resistance: 50 Ω nominal.
• Probe DC Resistance: 8.73 ±0.50 Ω at 5.0 meters total length.

Technical Specifications — Materials & Cable

• Probe Tip: Polyphenylene sulfide (PPS) molded for ruggedness and high temperature use.
• Probe Case: AISI 303/304 stainless steel for corrosion resistance.
• Standard Cable: 75 Ω triaxial FEP-insulated probe cable available up to 9 meters.
• Extended Temperature Cable: 75 Ω triaxial PFA-insulated cable rated for higher temperature ranges.
• Connector Material: Gold-plated brass or beryllium copper for low-resistance connections.

Mechanical & Environmental Ratings

• Thread Engagement: 3/8-24 UNF, 0.563 inches maximum engagement.
• Tensile Strength: 330 N from probe case to lead; 270 N at cable connectors.
• Operating Temperature: -55°C to +232°C (T1–T5 classes for EPL Ga/Gc).
• Weight: 323 g/m (11.4 oz per meter).
• Pressure Seal: Viton® O-ring; probes not pressure-tested prior to shipment.

Suffix & Ordering Structure

• Model: 330191-40-75-50-CN
  • Series: 3300 XL — Enhanced design for industrial monitoring.
  • Tip Diameter: 8 mm PPS molded probe tip.
  • Thread: 3/8-24 UNF standard thread.
  • Unthreaded Length (40): 4.0 in.
  • Overall Case Length (75): 7.5 in.
  • Total Cable Length (50): 5.0 m (16.4 ft).
  • Agency Option (CN): Country-specific approval suffix.

Installation Guidelines

• Install following drawing 140979 for correct voltage and grounding configuration.
• Torque connector to a maximum of 0.565 N·m (5 in·lbf).
• Use Bently Nevada extension cables and Proximitor sensors for full compliance.
• Check DC resistance before system startup to confirm cable integrity.
• Route triaxial cable separately from high-power conductors to minimize noise.

Packaging & Delivery

• Includes one 330191-40-75-50-CN probe, protective cap, and mounting accessories.
• Standard factory packaging ensures safe global transit.
• Ships via FedEx, UPS, or DHL with international tracking.

FAQ

• Q: What lengths are available for the 3300 XL series?
• A: Standard lengths: 0.5 m to 9 m based on system design.
• Q: What is the ideal operating voltage range?
• A: -17.5 Vdc to -26 Vdc. Keep below -23.5 Vdc for best linear performance.
• Q: Can it prevent oil leakage through cables?
• A: Yes, when equipped with the FluidLoc option.

Contact & Sales

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825
• Our support team provides prompt quotations and product selection advice.

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