Bently Nevada 3300 XL 8mm ETR Probe: Industrial-Grade Vibration Monitoring

The 330191-40-75-90-CN represents Bently Nevada's premium vibration monitoring solution. This advanced proximity probe features robust construction and reliable performance for critical machinery protection applications.

Product Identification & Configuration

• Brand & Series: Bently Nevada 3300 XL Monitoring System
• Complete Part Number: 330191-40-75-90-CN
• Model Type: 3300 XL 8mm ETR Proximity Probe
• Thread Specification: 3/8-24 UNF without armor
• Product Condition: New & Original in Factory Packaging

Model Number Suffix Breakdown

• 330191: Base Model - 3300 XL 8mm ETR Probe
• 40: Unthreaded Length - 4.0 inches
• 75: Case Length - 7.5 inches
• 90: Cable Length - 9.0 meters (29.5 feet)
• CN: Country Specific Agency Approval

Technical Specifications

• DC Resistance: 9.87 Ω ± 0.50 Ω at 25°C
• Power Supply: -17.5 Vdc to -26 Vdc operating range
• Current Consumption: 12 mA maximum current draw
• Output Resistance: 50 Ω nominal output impedance
• Supply Sensitivity: Less than 2 mV change per volt input
• Cable Type: 75Ω triaxial with FEP insulation

Physical Construction & Materials

• Probe Tip: Polyphenylene sulfide (PPS) with TipLoc molding
• Case Material: AISI 303/304 stainless steel construction
• Cable Connection: CableLoc design with 330N pull strength
• Connector Material: Gold-plated brass or beryllium copper
• Maximum Torque: 0.565 N•m (5 in•lbf) connector rating

Environmental Specifications

• Temperature Range: -55°C to +232°C operating capability
• Sealing Material: Viton® O-ring for pressure differential
• Weight: 323 g/m (11.4 oz per meter) cable weight
• Tensile Strength: 330N rated pull strength case to cable
• Thread Engagement: Maximum 0.563 inches installation depth

Power & Electrical Requirements

• Operates with -17.5 Vdc to -26 Vdc power supply
• Requires -23 Vdc to -26 Vdc when using barriers
• Maintain -23.5 Vdc minimum for optimal linear range
• Connect per drawing 140979 for non-incendive circuits
• Use only with Bently Nevada extension cables

Installation Guidelines

• Follow maximum thread engagement specifications
• Ensure proper clearance between probe and target
• Use correct torque for connector installation
• Implement proper cable strain relief methods
• Verify compatibility with monitoring system

Compatibility Information

• Designed for use with Bently Nevada extension cables
• Connects directly to Bently Nevada proximity systems
• One-meter systems do not require extension cables
• Optional FluidLoc cable available for liquid protection
• Works with standard 3300 XL monitoring equipment

Certification & Approvals

• Country Specific Agency Approval (CN suffix)
• Meets EPL Ga and Gc temperature classifications
• Complies with international safety standards
• Suitable for hazardous area applications
• Factory tested to ensure performance standards

Packaging & Shipping

• Original factory packaging with protective materials
• Includes installation documentation and guides
• International shipping via FedEx, UPS, and DHL
• Fast dispatch from stock availability
• Global delivery with tracking information

Warranty & Support

• 12-month comprehensive factory warranty
• Coverage for manufacturing defects and materials
• Technical support from experienced engineers
• Quick response for warranty claims
• Quality guarantee on all components

Frequently Asked Questions

• What makes the 8mm probe more rugged than smaller versions?
• The 8mm design features thicker encapsulation and a stronger case for better physical abuse resistance
• Can I use this probe with non-Bently Nevada extension cables?
• No, optimal performance requires genuine Bently Nevada extension cables and components
• What is the CableLoc design advantage?
• CableLoc provides 330N pull strength for more secure cable attachment and reliability
• How does the TipLoc molding improve probe performance?
• TipLoc creates a stronger bond between probe tip and body for enhanced durability
• What does the CN suffix mean in the part number?
• CN indicates Country Specific Approval for compliance with local regulatory requirements

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