330191-40-75-05-05 Bently Nevada 3300 XL 8mm ETR Probe

Engineering Core & Mechanical Integrity

• The 330191-40-75-05-05 is a premium 8mm Extended Temperature Range (ETR) proximity probe.
• Features patented TipLoc molding for a high-strength bond between the PPS tip and stainless steel case.
• Utilizes CableLoc technology providing 330 N (75 lbf) pull strength for extreme durability.
• Equipped with PFA-insulated triaxial cabling, rated for continuous operation in high-heat industrial zones.

Configuration Breakdown & Suffix Logic

• 330191 —— 3300 XL 8 mm ETR Probe (3/8-24 UNF thread)
  • └── -40 —— Unthreaded Length: 4.0 inches (101.6 mm)
  • └── -75 —— Overall Case Length: 7.5 inches (190.5 mm)
  • └── -05 —— Total Length: 0.5 meter (1.6 feet)
  • └── -05 —— Agency Approvals: CSA, ATEX, IECEx Intrinsically Safe

Detailed Technical Specifications

• Brand: Bently Nevada
• Part Number: 330191-40-75-05-05
• Cable Type: 75Ω triaxial PFA insulated (Extended Temperature Range)
• Body Material: AISI 303 or 304 Stainless Steel
• DC Resistance: 7.45 ± 0.50 Ω
• Max Temperature: Rated up to +232°C (+450°F)
• Tensile Strength: 330 N (75 lbf) probe to lead
• Connector: Gold-plated brass with 0.565 N·m maximum torque
• Pressure Seal: Integrated Viton O-ring between tip and case

Global PLC Spare HUB's Insight

• The 330191-40-75-05-05 is the industry standard for steam turbine and gas turbine bearing monitoring.
• The 0.5m length is optimized for high-density sensor installations where cables connect directly to local junction boxes.
• ETR probes are essential when ambient temperatures exceed the limits of standard FEP-jacketed cables (+177°C).
• Its 8mm diameter provides a much more rugged physical profile compared to 5mm variants, resisting physical abuse during maintenance.

Shipping and Warranty Protection

• Warranty: 12-month factory-backed industrial warranty.
• Handling: Dispatched within 24–48 hours of order confirmation.
• Express Carriers: Worldwide priority shipping via FedEx, UPS, and DHL.
• Condition: Guaranteed Brand New and Original in factory packing.

Expert FAQ & Selection Guide

• Question: What is the purpose of the 4.0-inch unthreaded length?
• Answer: It allows the probe to extend through machine insulation or thick walls before reaching the mounting thread.
• Question: Is this probe compatible with standard 3300 XL Proximitor sensors?
• Answer: Yes, but ensure the Proximitor is calibrated for a total system length that matches your probe and cable combination.
• Question: How should the gold-plated connectors be maintained?
• Answer: Keep them clean and dry; use the recommended 0.565 N·m torque to prevent over-tightening or signal loss.
• Experience Tip: When installing the 330191, avoid sharp bends in the PFA cable to maintain 75Ω impedance integrity.
• Selection Guide: Choose this 330191 ETR model if your probe lead will be exposed to temperatures above 177°C.

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