Bently Nevada 3300 NSv System Extension Cable

The Bently Nevada 3300 NSv extension cable is a critical component for completing your vibration monitoring system. This model 330930-040-03-CN provides a 4.0-meter connection between the probe and the Proximitor sensor. It features a connector protector for strain relief and a high-quality FEP insulated coaxial cable. This cable ensures signal integrity and system accuracy over the required distance. You must match the total cable length (probe + extension) to your specific Proximitor sensor model.

Model Configuration: 330930-040-03-CN

• 330930: Base code for the 3300 NSv series extension cable.
• 040: Specifies the cable length as 4.0 meters (13.1 feet).
• 03: Denotes a cable without stainless steel armor but with a connector protector.
• CN: Signifies Country-Specific approval or documentation requirements.

Electrical Specifications

• Cable Type: 75 Ω coaxial cable.
• Insulation: High-performance Fluoroethylene Propylene (FEP).
• Cable Capacitance: Typical value is 69.9 pF per meter (21.3 pF/ft).
• Center Conductor Resistance: 0.220 Ω/m (0.067 Ω/ft).
• Shield Resistance: 0.066 Ω/m (0.020 Ω/ft).
• Field Wiring (to Monitor): Use 3-conductor shielded triad cable, max 305 meters (1000 ft).

Mechanical Construction & Options

• Armor Option: This model is without stainless steel armor. Armored versions are optional.
• Connector Protector: Includes a protective boot for strain relief and environmental protection.
• Connector Material: Features reliable, low-resistance gold-plated brass connectors.
• Tensile Strength: Rated for 220 N (50 lb) at connection points.
• Optional Armor: If ordered, armor is flexible AISI 302 SST, with or without an FEP jacket.

System Integration & Length Matching

• Critical Rule: Probe Length + Extension Cable Length = Proximitor Sensor Total Length.
• Purpose: The extension cable completes the electrical circuit to achieve the system's designed sensitivity and linearity.
• Example: A 1.0m probe must be paired with a 4.0m extension cable for use with a 5.0m Proximitor sensor system.
• Compatibility: Designed for use with 3300 NSv series proximity probes and Proximitor sensors.
• Signal Consideration: Long field wiring runs may affect high-frequency response; consult system manual graphs.

Environmental & Operational Ratings

• Operating Temperature: Rated for -51°C to +177°C (-60°F to +351°F).
• Storage Temperature: Can be stored within the same range: -52°C to +177°C.
• Chemical Resistance: FEP insulation offers excellent resistance to oils and many chemicals.
• Shipping Weight: Approximately 1.5 kg for this 4-meter cable assembly.

Packaging & Shipping

• This Bently Nevada 3300 NSv extension cable is new and in original factory packing.
• The cable is coiled and packed to prevent damage during shipment and storage.
• We ship internationally using express services: FedEx, UPS, and DHL.
• Tracking details are provided for all orders to ensure smooth delivery to your site.

Frequently Asked Questions (FAQ)

How do I choose the correct extension cable length?

• You must calculate it based on your Proximitor sensor. If your sensor is a "5-meter system", and your probe is 1 meter long, you need a 4-meter extension cable (1m + 4m = 5m). Always follow the length-matching rule.

What is the connector protector for?

• The connector protector is a rubber or plastic boot that covers the mated connection between the probe and extension cable. It provides strain relief to prevent cable pull-out and protects against dust, moisture, and incidental impact.

When should I order an armored extension cable?

• Choose the armored option (not this model) when the cable run is exposed to physical risks like abrasion, crushing, cutting, or rodent damage. It is essential for cables routed on floors, in trays, or in outdoor/pit environments.

Is this cable compatible with 3300 XL probes?

• No. The 3300 NSv extension cable is specifically designed for the NSv product line, which uses a 75 Ω coaxial system. It is not electrically compatible with 3300 XL probes and will cause system inaccuracy if used.

What does "Country Specific (CN)" imply?

• This indicates the product comes with documentation, labeling, or certifications required for import or use in a particular country or region, such as a specific Certificate of Origin or compliance mark.

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